diff --git a/.gitmodules b/.gitmodules
index 6caac69..b0725c2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "native/zcash-params"]
 	path = native/zcash-params
 	url = https://github.com/hhanh00/zcash-params.git
+[submodule "native/zcash-multisig"]
+	path = native/zcash-multisig
+	url = https://github.com/hhanh00/zcash-multisig.git
diff --git a/Cargo.lock b/Cargo.lock
index d4c00d2..78df491 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -47,18 +47,18 @@ checksum = "739f4a8db6605981345c5654f3a85b056ce52f37a39d34da03f25bf2151ea16e"
 
 [[package]]
 name = "aho-corasick"
-version = "0.7.18"
+version = "0.7.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+checksum = "7404febffaa47dac81aa44dba71523c9d069b1bdc50a77db41195149e17f68e5"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "allo-isolate"
-version = "0.1.10"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95c5a443c8b833fc57ee060bb52639fb687d94e640737e71be5c8cccbbbb790c"
+checksum = "e13e2dba4602fed6c46f7d5cae67fe0fb9a6af1ce01848228f7533a8450c73be"
 dependencies = [
  "atomic",
 ]
@@ -92,9 +92,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.44"
+version = "1.0.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61604a8f862e1d5c3229fdd78f8b02c68dcf73a4c4b05fd636d12240aaa242c1"
+checksum = "ee10e43ae4a853c0a3591d4e2ada1719e553be18199d9da9d4a83f5927c2f5c7"
 
 [[package]]
 name = "arrayref"
@@ -341,9 +341,9 @@ dependencies = [
 
 [[package]]
 name = "bstr"
-version = "0.2.17"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba3569f383e8f1598449f1a423e72e99569137b47740b1da11ef19af3d5c3223"
+checksum = "a40b47ad93e1a5404e6c18dec46b628214fee441c70f4ab5d6942142cc268a3d"
 dependencies = [
  "lazy_static",
  "memchr",
@@ -390,7 +390,7 @@ version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38728c31b994e4b849cf59feefb4a8bf26acd299ee0b92c9fb35bd14ad4b8dfa"
 dependencies = [
- "clap 2.33.3",
+ "clap",
  "heck",
  "indexmap",
  "log",
@@ -452,43 +452,12 @@ dependencies = [
  "ansi_term",
  "atty",
  "bitflags",
- "strsim 0.8.0",
- "textwrap 0.11.0",
+ "strsim",
+ "textwrap",
  "unicode-width",
  "vec_map",
 ]
 
-[[package]]
-name = "clap"
-version = "3.0.0-beta.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "feff3878564edb93745d58cf63e17b63f24142506e7a20c87a5521ed7bfb1d63"
-dependencies = [
- "atty",
- "bitflags",
- "clap_derive",
- "indexmap",
- "lazy_static",
- "os_str_bytes",
- "strsim 0.10.0",
- "termcolor",
- "textwrap 0.14.2",
- "unicase",
-]
-
-[[package]]
-name = "clap_derive"
-version = "3.0.0-beta.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b15c6b4f786ffb6192ffe65a36855bc1fc2444bcd0945ae16748dcd6ed7d0d3"
-dependencies = [
- "heck",
- "proc-macro-error",
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "clipboard-win"
 version = "4.2.2"
@@ -554,7 +523,7 @@ checksum = "1604dafd25fba2fe2d5895a9da139f8dc9b319a5fe5354ca137cbbce4e178d10"
 dependencies = [
  "atty",
  "cast",
- "clap 2.33.3",
+ "clap",
  "criterion-plot",
  "csv",
  "itertools 0.10.1",
@@ -869,7 +838,7 @@ dependencies = [
 [[package]]
 name = "equihash"
 version = "0.1.0"
-source = "git+https://github.com/hhanh00/librustzcash.git?rev=6baf1ba63261dda09e5b1d4b476977842a1f61c8#6baf1ba63261dda09e5b1d4b476977842a1f61c8"
+source = "git+https://github.com/hhanh00/librustzcash.git?rev=1518b145f8ee67e144fa8337c7dfd4c8cff899c9#1518b145f8ee67e144fa8337c7dfd4c8cff899c9"
 dependencies = [
  "blake2b_simd",
  "byteorder",
@@ -1449,9 +1418,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.105"
+version = "0.2.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "869d572136620d55835903746bcb5cdc54cb2851fd0aeec53220b4bb65ef3013"
+checksum = "fbe5e23404da5b4f555ef85ebed98fb4083e55a00c317800bc2a50ede9f3d219"
 
 [[package]]
 name = "libsecp256k1"
@@ -1503,9 +1472,9 @@ checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
 
 [[package]]
 name = "memchr"
-version = "2.4.1"
+version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
 [[package]]
 name = "memoffset"
@@ -1599,9 +1568,9 @@ dependencies = [
 
 [[package]]
 name = "nom"
-version = "6.1.2"
+version = "6.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7413f999671bd4745a7b624bd370a569fb6bc574b23c83a3c5ed2e453f3d5e2"
+checksum = "9c5c51b9083a3c620fa67a2a635d1ce7d95b897e957d6b28ff9a5da960a103a6"
 dependencies = [
  "bitvec 0.19.5",
  "funty",
@@ -1689,15 +1658,6 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28988d872ab76095a6e6ac88d99b54fd267702734fd7ffe610ca27f533ddb95a"
 
-[[package]]
-name = "os_str_bytes"
-version = "4.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "addaa943333a514159c80c97ff4a93306530d965d27e139188283cd13e06a799"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "pairing"
 version = "0.19.0"
@@ -1805,30 +1765,6 @@ version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed0cfbc8191465bed66e1718596ee0b0b35d5ee1f41c5df2189d0fe8bde535ba"
 
-[[package]]
-name = "proc-macro-error"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
-dependencies = [
- "proc-macro-error-attr",
- "proc-macro2",
- "quote",
- "syn",
- "version_check",
-]
-
-[[package]]
-name = "proc-macro-error-attr"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
-dependencies = [
- "proc-macro2",
- "quote",
- "version_check",
-]
-
 [[package]]
 name = "proc-macro-hack"
 version = "0.5.19"
@@ -2084,9 +2020,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.5.4"
+version = "1.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+checksum = "2a26af418b574bd56588335b3a3659a65725d4e636eb1016c2f9e3b38c7cc759"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -2399,9 +2335,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.68"
+version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f690853975602e1bfe1ccbf50504d67174e3bcf340f23b5ea9992e0587a52d8"
+checksum = "e466864e431129c7e0d3476b92f20458e5879919a0596c6472738d9fa2d342f8"
 dependencies = [
  "itoa",
  "ryu",
@@ -2555,12 +2491,6 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
-[[package]]
-name = "strsim"
-version = "0.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
-
 [[package]]
 name = "subtle"
 version = "1.0.0"
@@ -2589,11 +2519,13 @@ name = "sync"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "bech32",
  "bincode",
+ "blake2b_simd",
  "bls12_381",
  "byteorder",
  "chrono",
- "clap 3.0.0-beta.5",
+ "clap",
  "criterion",
  "dotenv",
  "env_logger",
@@ -2609,6 +2541,7 @@ dependencies = [
  "prost",
  "protobuf",
  "rand 0.8.4",
+ "rand_chacha 0.3.1",
  "rayon",
  "reqwest",
  "ripemd160",
@@ -2627,7 +2560,8 @@ dependencies = [
  "tonic-build",
  "zcash_address",
  "zcash_client_backend",
- "zcash_params 0.1.0 (git+https://github.com/hhanh00/zcash-params.git?branch=main)",
+ "zcash_multisig 0.1.0 (git+https://github.com/hhanh00/zcash-multisig.git?rev=f6ab9d9efcdc064a4b6f77623a263899b62a7bd7)",
+ "zcash_params 0.1.0 (git+https://github.com/hhanh00/zcash-params.git?rev=f54214d0a6752188efd1404e39b10be58a27ea0f)",
  "zcash_primitives",
  "zcash_proofs",
 ]
@@ -2682,15 +2616,6 @@ dependencies = [
  "unicode-width",
 ]
 
-[[package]]
-name = "textwrap"
-version = "0.14.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0066c8d12af8b5acd21e00547c3797fde4e8677254a7ee429176ccebbe93dd80"
-dependencies = [
- "unicode-width",
-]
-
 [[package]]
 name = "thiserror"
 version = "1.0.30"
@@ -2819,9 +2744,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.12.0"
+version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2c2416fdedca8443ae44b4527de1ea633af61d8f7169ffa6e72c5b53d24efcc"
+checksum = "588b2d10a336da58d877567cd8fb8a14b463e2104910f8132cd054b4b96e29ee"
 dependencies = [
  "autocfg",
  "bytes",
@@ -2836,9 +2761,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2dd85aeaba7b68df939bd357c6afb36c87951be9e80bf9c859f2fc3e9fca0fd"
+checksum = "114383b041aa6212c579467afa0075fbbdd0718de036100bc0ba7961d8cb9095"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2858,9 +2783,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-stream"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b2f3f698253f03119ac0102beaa64f67a67e08074d03a22d18784104543727f"
+checksum = "50145484efff8818b5ccd256697f36863f587da82cf8b409c53adf1e840798e3"
 dependencies = [
  "futures-core",
  "pin-project-lite",
@@ -2869,9 +2794,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d3725d3efa29485e87311c5b699de63cde14b00ed4d256b8318aa30ca452cd"
+checksum = "9e99e1983e5d376cd8eb4b66604d2e99e79f5bd988c3055891dcd8c9e2604cc0"
 dependencies = [
  "bytes",
  "futures-core",
@@ -3021,15 +2946,6 @@ version = "1.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b63708a265f51345575b27fe43f9500ad611579e764c79edbc2037b1121959ec"
 
-[[package]]
-name = "unicase"
-version = "2.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
-dependencies = [
- "version_check",
-]
-
 [[package]]
 name = "unicode-bidi"
 version = "0.3.7"
@@ -3139,6 +3055,7 @@ dependencies = [
  "once_cell",
  "sync",
  "tokio",
+ "zcash_multisig 0.1.0",
  "zcash_primitives",
 ]
 
@@ -3325,7 +3242,7 @@ dependencies = [
 [[package]]
 name = "zcash_client_backend"
 version = "0.5.0"
-source = "git+https://github.com/hhanh00/librustzcash.git?rev=6baf1ba63261dda09e5b1d4b476977842a1f61c8#6baf1ba63261dda09e5b1d4b476977842a1f61c8"
+source = "git+https://github.com/hhanh00/librustzcash.git?rev=1518b145f8ee67e144fa8337c7dfd4c8cff899c9#1518b145f8ee67e144fa8337c7dfd4c8cff899c9"
 dependencies = [
  "base64",
  "bech32",
@@ -3346,10 +3263,31 @@ dependencies = [
  "zcash_primitives",
 ]
 
+[[package]]
+name = "zcash_multisig"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "futures 0.3.17",
+ "jubjub",
+ "tokio",
+]
+
+[[package]]
+name = "zcash_multisig"
+version = "0.1.0"
+source = "git+https://github.com/hhanh00/zcash-multisig.git?rev=f6ab9d9efcdc064a4b6f77623a263899b62a7bd7#f6ab9d9efcdc064a4b6f77623a263899b62a7bd7"
+dependencies = [
+ "anyhow",
+ "futures 0.3.17",
+ "jubjub",
+ "tokio",
+]
+
 [[package]]
 name = "zcash_note_encryption"
 version = "0.0.0"
-source = "git+https://github.com/hhanh00/librustzcash.git?rev=6baf1ba63261dda09e5b1d4b476977842a1f61c8#6baf1ba63261dda09e5b1d4b476977842a1f61c8"
+source = "git+https://github.com/hhanh00/librustzcash.git?rev=1518b145f8ee67e144fa8337c7dfd4c8cff899c9#1518b145f8ee67e144fa8337c7dfd4c8cff899c9"
 dependencies = [
  "blake2b_simd",
  "byteorder",
@@ -3373,13 +3311,14 @@ dependencies = [
  "jubjub",
  "lazy_static",
  "rand 0.8.4",
+ "serde",
  "zcash_primitives",
 ]
 
 [[package]]
 name = "zcash_params"
 version = "0.1.0"
-source = "git+https://github.com/hhanh00/zcash-params.git?branch=main#f8eb2641dd7c4f3e57cd8c928334c1ae4e4284a4"
+source = "git+https://github.com/hhanh00/zcash-params.git?rev=f54214d0a6752188efd1404e39b10be58a27ea0f#f54214d0a6752188efd1404e39b10be58a27ea0f"
 dependencies = [
  "bls12_381",
  "byteorder",
@@ -3390,13 +3329,14 @@ dependencies = [
  "jubjub",
  "lazy_static",
  "rand 0.8.4",
+ "serde",
  "zcash_primitives",
 ]
 
 [[package]]
 name = "zcash_primitives"
 version = "0.5.0"
-source = "git+https://github.com/hhanh00/librustzcash.git?rev=6baf1ba63261dda09e5b1d4b476977842a1f61c8#6baf1ba63261dda09e5b1d4b476977842a1f61c8"
+source = "git+https://github.com/hhanh00/librustzcash.git?rev=1518b145f8ee67e144fa8337c7dfd4c8cff899c9#1518b145f8ee67e144fa8337c7dfd4c8cff899c9"
 dependencies = [
  "aes",
  "bitvec 0.20.4",
@@ -3426,7 +3366,7 @@ dependencies = [
 [[package]]
 name = "zcash_proofs"
 version = "0.5.0"
-source = "git+https://github.com/hhanh00/librustzcash.git?rev=6baf1ba63261dda09e5b1d4b476977842a1f61c8#6baf1ba63261dda09e5b1d4b476977842a1f61c8"
+source = "git+https://github.com/hhanh00/librustzcash.git?rev=1518b145f8ee67e144fa8337c7dfd4c8cff899c9#1518b145f8ee67e144fa8337c7dfd4c8cff899c9"
 dependencies = [
  "bellman",
  "blake2b_simd",
@@ -3443,18 +3383,18 @@ dependencies = [
 
 [[package]]
 name = "zeroize"
-version = "1.4.2"
+version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf68b08513768deaa790264a7fac27a58cbf2705cfcdc9448362229217d7e970"
+checksum = "d68d9dcec5f9b43a30d38c49f91dfedfaac384cb8f085faca366c26207dd1619"
 dependencies = [
  "zeroize_derive",
 ]
 
 [[package]]
 name = "zeroize_derive"
-version = "1.2.0"
+version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdff2024a851a322b08f179173ae2ba620445aef1e838f0c196820eade4ae0c7"
+checksum = "65f1a51723ec88c66d5d1fe80c841f17f63587d6691901d66be9bec6c3b51f73"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/android/app/build.gradle b/android/app/build.gradle
index fa19339..4696da3 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -41,7 +41,6 @@ android {
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "me.hanh.zwallet"
         minSdkVersion 24
         targetSdkVersion 30
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index fb121ab..9a2f10f 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="me.hanh.zwallettest">
+    package="me.hanh.zwallet">
    <application
-        android:label="ZWalletTest"
+        android:label="ZWallet"
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
@@ -27,7 +27,7 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
                 <data
-                        android:scheme="zcashtest"/>
+                        android:scheme="zcash"/>
             </intent-filter>
         </activity>
         <!-- Don't delete the meta-data below.
diff --git a/android/app/src/main/res/drawable-v21/launch_background.xml b/android/app/src/main/res/drawable-v21/launch_background.xml
index f74085f..3fe6b2e 100644
--- a/android/app/src/main/res/drawable-v21/launch_background.xml
+++ b/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -1,12 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="?android:colorBackground" />
-
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
-        <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
-</layer-list>
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
+    <item>
+        <bitmap android:gravity="center" android:src="@drawable/splash"/>
+    </item>
+</layer-list>
\ No newline at end of file
diff --git a/android/app/src/main/res/drawable/launch_background.xml b/android/app/src/main/res/drawable/launch_background.xml
index 304732f..3fe6b2e 100644
--- a/android/app/src/main/res/drawable/launch_background.xml
+++ b/android/app/src/main/res/drawable/launch_background.xml
@@ -1,12 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@android:color/white" />
-
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
-        <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
-</layer-list>
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
+    <item>
+        <bitmap android:gravity="center" android:src="@drawable/splash"/>
+    </item>
+</layer-list>
\ No newline at end of file
diff --git a/android/app/src/main/res/values-night/styles.xml b/android/app/src/main/res/values-night/styles.xml
index 449a9f9..7c806c6 100644
--- a/android/app/src/main/res/values-night/styles.xml
+++ b/android/app/src/main/res/values-night/styles.xml
@@ -5,6 +5,7 @@
         <!-- Show a splash screen on the activity. Automatically removed when
              Flutter draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:windowFullscreen">false</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your
@@ -15,4 +16,4 @@
     <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
         <item name="android:windowBackground">?android:colorBackground</item>
     </style>
-</resources>
+</resources>
\ No newline at end of file
diff --git a/android/app/src/main/res/values/styles.xml b/android/app/src/main/res/values/styles.xml
index 341acbe..fe258c9 100644
--- a/android/app/src/main/res/values/styles.xml
+++ b/android/app/src/main/res/values/styles.xml
@@ -19,4 +19,4 @@
     <style name="QuickActions">
         <item name="android:windowBackground">@drawable/quick_actions</item>
     </style>
-</resources>
+</resources>
\ No newline at end of file
diff --git a/configure.sh b/configure.sh
index eaff059..4ab6bf8 100755
--- a/configure.sh
+++ b/configure.sh
@@ -10,14 +10,14 @@ zcashtest)
   export APP_NAME=zwallettest
   ;;
 zcash)
-  export APP_TITLE=WarpWallet
-  export APP_NAME=warpwallet
+  export APP_TITLE=ZWallet
+  export APP_NAME=zwallet
   ;;
 esac
 
 cp assets/$COIN.png assets/icon.png
 cp lib/coin/$COIN.dart lib/coin/coindef.dart
-cp native/zcash-sync/src/coindef/$COIN.rs native/zcash-sync/src/coin.rs
+cp native/zcash-params/src/coindef/$COIN.rs native/zcash-params/src/coin.rs
 
 mo pubspec.yaml.tpl > pubspec.yaml
 mo android/app/src/main/AndroidManifest.xml.tpl > android/app/src/main/AndroidManifest.xml
@@ -28,3 +28,6 @@ flutter pub run flutter_launcher_icons:main
 flutter pub run flutter_app_name
 flutter pub run build_runner build
 flutter pub run flutter_native_splash:create
+
+(cd packages/warp_api_ffi; flutter pub get; flutter pub run build_runner build)
+
diff --git a/ios/Runner.xcodeproj/project.pbxproj b/ios/Runner.xcodeproj/project.pbxproj
index 00f4b1c..021f010 100644
--- a/ios/Runner.xcodeproj/project.pbxproj
+++ b/ios/Runner.xcodeproj/project.pbxproj
@@ -560,4 +560,4 @@
 /* End XCConfigurationList section */
 	};
 	rootObject = 97C146E61CF9000F007C117D /* Project object */;
-}
+}
\ No newline at end of file
diff --git a/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
index 0bedcf2..00cabce 100644
--- a/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
+++ b/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -1,23 +1,23 @@
 {
   "images" : [
     {
-      "idiom" : "universal",
       "filename" : "LaunchImage.png",
+      "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "idiom" : "universal",
       "filename" : "LaunchImage@2x.png",
+      "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "idiom" : "universal",
       "filename" : "LaunchImage@3x.png",
+      "idiom" : "universal",
       "scale" : "3x"
     }
   ],
   "info" : {
-    "version" : 1,
-    "author" : "xcode"
+    "author" : "xcode",
+    "version" : 1
   }
 }
diff --git a/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
index 9da19ea..238965b 100644
Binary files a/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png and b/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png differ
diff --git a/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
index 9da19ea..955f8cc 100644
Binary files a/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png and b/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png differ
diff --git a/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
index 9da19ea..eaa72f7 100644
Binary files a/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png and b/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png differ
diff --git a/ios/Runner/Base.lproj/LaunchScreen.storyboard b/ios/Runner/Base.lproj/LaunchScreen.storyboard
index f2e259c..de7eef5 100644
--- a/ios/Runner/Base.lproj/LaunchScreen.storyboard
+++ b/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -16,13 +16,19 @@
                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
-                            </imageView>
+                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleToFill" image="LaunchBackground" translatesAutoresizingMaskIntoConstraints="NO" id="tWc-Dq-wcI"/>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4"></imageView>
                         </subviews>
                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                         <constraints>
-                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
-                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="leading" secondItem="Ze5-6b-2t3" secondAttribute="leading" id="3T2-ad-Qdv"/>
+                            <constraint firstItem="tWc-Dq-wcI" firstAttribute="bottom" secondItem="Ze5-6b-2t3" secondAttribute="bottom" id="RPx-PI-7Xg"/>
+                            <constraint firstItem="tWc-Dq-wcI" firstAttribute="top" secondItem="Ze5-6b-2t3" secondAttribute="top" id="SdS-ul-q2q"/>
+                            <constraint firstAttribute="trailing" secondItem="tWc-Dq-wcI" secondAttribute="trailing" id="Swv-Gf-Rwn"/>
+                            <constraint firstAttribute="trailing" secondItem="YRO-k0-Ey4" secondAttribute="trailing" id="TQA-XW-tRk"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="bottom" secondItem="Ze5-6b-2t3" secondAttribute="bottom" id="duK-uY-Gun"/>
+                            <constraint firstItem="tWc-Dq-wcI" firstAttribute="leading" secondItem="Ze5-6b-2t3" secondAttribute="leading" id="kV7-tw-vXt"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="top" secondItem="Ze5-6b-2t3" secondAttribute="top" id="xPn-NY-SIU"/>
                         </constraints>
                     </view>
                 </viewController>
@@ -32,6 +38,7 @@
         </scene>
     </scenes>
     <resources>
-        <image name="LaunchImage" width="168" height="185"/>
+        <image name="LaunchImage" width="256" height="256"/>
+        <image name="LaunchBackground" width="1" height="1"/>
     </resources>
-</document>
+</document>
\ No newline at end of file
diff --git a/ios/Runner/Info.plist b/ios/Runner/Info.plist
index 3db09d2..a635762 100644
--- a/ios/Runner/Info.plist
+++ b/ios/Runner/Info.plist
@@ -11,7 +11,7 @@
 		<key>CFBundleInfoDictionaryVersion</key>
 		<string>6.0</string>
 		<key>CFBundleName</key>
-		<string>WarpWallet</string>
+		<string>YWallet</string>
 		<key>CFBundlePackageType</key>
 		<string>APPL</string>
 		<key>CFBundleShortVersionString</key>
@@ -49,16 +49,16 @@
 		<false/>
 		<key>UIStatusBarHidden</key>
 		<false/>
-        <key>CFBundleURLTypes</key>
-        <array>
-            <dict>
-                <key>CFBundleTypeRole</key>
-                <string>Editor</string>
-                <key>CFBundleURLSchemes</key>
-                <array>
-                    <string>$(COIN)</string>
-                </array>
-            </dict>
-        </array>
-  	</dict>
+		<key>CFBundleURLTypes</key>
+		<array>
+			<dict>
+				<key>CFBundleTypeRole</key>
+				<string>Editor</string>
+				<key>CFBundleURLSchemes</key>
+				<array>
+					<string>$(COIN)</string>
+				</array>
+			</dict>
+		</array>
+	</dict>
 </plist>
\ No newline at end of file
diff --git a/lib/account.dart b/lib/account.dart
index a8c1902..3910d24 100644
--- a/lib/account.dart
+++ b/lib/account.dart
@@ -10,6 +10,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_form_builder/flutter_form_builder.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:intl/intl.dart';
+import 'package:k_chart/entity/index.dart';
 import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
 import 'package:qr_flutter/qr_flutter.dart';
 import 'package:sensors_plus/sensors_plus.dart';
@@ -125,6 +126,7 @@ class _AccountPageState extends State<AccountPage>
     final theme = Theme.of(this.context);
     final hasTAddr = accountManager.taddress.isNotEmpty;
     final qrSize = getScreenSize(context) / 2.5;
+    final hasMultisign = accountManager.canPay || accountManager.active.share != null;
 
     return Scaffold(
       appBar: AppBar(
@@ -154,11 +156,12 @@ class _AccountPageState extends State<AccountPage>
                 if (accountManager.canPay)
                   PopupMenuItem(
                       child: Text(s.coldStorage), value: "Cold"),
-                if (accountManager.canPay)
-                  PopupMenuItem(
-                      child: Text(s.multipay), value: "MultiPay"),
+                PopupMenuItem(
+                    child: Text(s.multipay), value: "MultiPay"),
                 PopupMenuItem(
                     child: Text(s.broadcast), value: "Broadcast"),
+                if (coin.supportsMultisig && hasMultisign) PopupMenuItem(
+                    child: Text(s.multisig), value: "Multisig"),
                 PopupMenuItem(
                     child: Text(s.settings), value: "Settings"),
                 PopupMenuItem(child: Text(s.help), value: "Help"),
@@ -176,6 +179,10 @@ class _AccountPageState extends State<AccountPage>
             padding: EdgeInsets.all(20),
             child: Center(
                 child: Column(children: [
+              Observer(builder: (context) {
+                final share = accountManager.active.share;
+                return share != null ? Text("MULTISIG ${share.index}/${share.participants}") : SizedBox();
+              }),
               Observer(builder: (context) {
                 final _1 = eta.eta;
                 final _2 = syncStatus.syncedHeight;
@@ -464,6 +471,9 @@ class _AccountPageState extends State<AccountPage>
       case "Broadcast":
         _broadcast();
         break;
+      case "Multisig":
+        _multisig();
+        break;
       case "Settings":
         _settings();
         break;
@@ -519,6 +529,10 @@ class _AccountPageState extends State<AccountPage>
     }
   }
 
+  _multisig() {
+    Navigator.of(context).pushNamed('/multisig');
+  }
+
   _convertToWatchOnly() {
     accountManager.convertToWatchOnly();
     Navigator.of(context).pop();
@@ -580,7 +594,7 @@ class BudgetState extends State<BudgetWidget>
                     style: Theme.of(context).textTheme.headline6),
                 Padding(padding: EdgeInsets.symmetric(vertical: 4)),
                 Expanded(child: Padding(padding: EdgeInsets.only(right: 20),
-                    child: LineChartTimeSeries(accountManager.accountBalances)))
+                    child: LineChartTimeSeries.fromTimeSeries(accountManager.accountBalances)))
               ]))),
             ],
           );
@@ -659,7 +673,7 @@ class PnLChart extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final series = _createSeries(pnls, seriesIndex, context);
-    return LineChartTimeSeries(series);
+    return LineChartTimeSeries.fromTimeSeries(series);
   }
 
   static double _seriesData(PnL pnl, int index) {
diff --git a/lib/account_manager.dart b/lib/account_manager.dart
index a0c32c5..3290a54 100644
--- a/lib/account_manager.dart
+++ b/lib/account_manager.dart
@@ -142,11 +142,11 @@ class AccountManagerState extends State<AccountManagerPage> {
         builder: (context) => AlertDialog(
             title: Text(S.of(context).changeAccountName),
             content: TextField(controller: _accountNameController),
-            actions: confirmButtons(context, _changeAccountName)));
+            actions: confirmButtons(context, () { _changeAccountName(account); })));
   }
 
-  _changeAccountName() {
-    accountManager.changeAccountName(_accountNameController.text);
+  _changeAccountName(Account account) {
+    accountManager.changeAccountName(account, _accountNameController.text);
     Navigator.of(context).pop();
   }
 
diff --git a/lib/backup.dart b/lib/backup.dart
index 315f6c0..b527885 100644
--- a/lib/backup.dart
+++ b/lib/backup.dart
@@ -18,12 +18,15 @@ class BackupState extends State<BackupPage> {
   final _backupController = TextEditingController();
   final _skController = TextEditingController();
   final _ivkController = TextEditingController();
+  final _shareController = TextEditingController();
 
   Future<bool> _init() async {
     backup = await accountManager.getBackup(widget.accountId ?? accountManager.active.id);
     _backupController.text = backup.value();
     _skController.text = backup.sk ?? "";
     _ivkController.text = backup.ivk;
+    final share = backup.share;
+    _shareController.text = share?.value ?? "";
     return true;
   }
 
@@ -38,6 +41,8 @@ class BackupState extends State<BackupPage> {
 
   Widget _build(BuildContext context, AsyncSnapshot<void> snapshot) {
     if (!snapshot.hasData) return LinearProgressIndicator();
+    final name = backup.name;
+    final share = backup.share;
     final type = backup.type;
     final theme = Theme.of(context);
     return SingleChildScrollView(child: Card(
@@ -46,7 +51,7 @@ class BackupState extends State<BackupPage> {
           TextField(
             decoration: InputDecoration(
                 labelText: S.of(context).backupDataRequiredForRestore, prefixIcon: IconButton(icon: Icon(Icons.save),
-                onPressed: () => _showQR(backup.value()))),
+                onPressed: () => _showQR(backup.value(), "$name - backup"))),
             controller: _backupController,
             minLines: 3,
             maxLines: 10,
@@ -55,7 +60,7 @@ class BackupState extends State<BackupPage> {
           ),
           if (type == 0) TextField(
             decoration: InputDecoration(labelText: S.of(context).secretKey, prefixIcon: IconButton(icon: Icon(Icons.vpn_key),
-    onPressed: () => _showQR(backup.sk!))),
+              onPressed: () => _showQR(backup.sk!, "$name - sk"))),
             controller: _skController,
             minLines: 3,
             maxLines: 10,
@@ -64,13 +69,22 @@ class BackupState extends State<BackupPage> {
           ),
           if (type != 2) TextField(
             decoration: InputDecoration(labelText: S.of(context).viewingKey, prefixIcon: IconButton(icon: Icon(Icons.visibility),
-    onPressed: () => _showQR(backup.ivk))),
+              onPressed: () => _showQR(backup.ivk, "$name - vk"))),
             controller: _ivkController,
             minLines: 3,
             maxLines: 10,
             readOnly: true,
             style: theme.textTheme.caption
           ),
+          if (share != null) TextField(
+              decoration: InputDecoration(labelText: S.of(context).secretShare, prefixIcon: IconButton(icon: Icon(Icons.share),
+                  onPressed: () => _showQR(share.value, "$name - ms ${share.index}/${share.participants}"))),
+              controller: _shareController,
+              minLines: 3,
+              maxLines: 10,
+              readOnly: true,
+              style: theme.textTheme.caption
+          ),
           Padding(padding: EdgeInsets.symmetric(vertical: 4)),
           Text(S.of(context).tapAnIconToShowTheQrCode),
           Container(margin: EdgeInsets.all(8), padding: EdgeInsets.all(8), decoration: BoxDecoration(border: Border.all(width: 2, color: theme.primaryColor), borderRadius: BorderRadius.circular(4)),child:
@@ -81,5 +95,5 @@ class BackupState extends State<BackupPage> {
     ));
   }
 
-  _showQR(String text) => showQR(context, text);
+  _showQR(String text, String title) => showQR(context, text, title);
 }
diff --git a/lib/chart.dart b/lib/chart.dart
index cb76716..9d41f83 100644
--- a/lib/chart.dart
+++ b/lib/chart.dart
@@ -1,154 +1,29 @@
-import 'dart:math';
-
-import 'package:fl_chart/fl_chart.dart';
-import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
-import 'package:intl/intl.dart';
-import 'package:flutter_palette/flutter_palette.dart';
 import 'package:warp_api/warp_api.dart';
+import 'package:k_chart/k_chart_widget.dart';
+import 'package:k_chart/flutter_k_chart.dart';
 
 import 'store.dart';
-import 'main.dart';
 
-class LineChartTimeSeries extends StatefulWidget {
-  final List<TimeSeriesPoint<double>> timeseries;
+class LineChartTimeSeries extends StatelessWidget {
+  List<KLineEntity> datas;
 
-  LineChartTimeSeries(this.timeseries);
-
-  @override
-  LineChartTimeSeriesState createState() => LineChartTimeSeriesState();
-}
-
-class LineChartTimeSeriesState extends State<LineChartTimeSeries> {
-  final numberFormat = NumberFormat.compact();
-
-  bool showAvg = false;
-  var _minX = 0.0;
-  var _maxX = 0.0;
-  var _minY = 0.0;
-  var _maxY = 0.0;
+  LineChartTimeSeries(this.datas);
+  factory LineChartTimeSeries.fromTimeSeries(List<TimeSeriesPoint<double>> quotes) =>
+      LineChartTimeSeries(quotes.map((q) => KLineEntity.fromCustom(time: q.day * DAY_MS, open: q.value, close: q.value,
+          high: q.value, low: q.value, amount: 0, vol: 0)).toList());
 
   @override
   Widget build(BuildContext context) {
-    return AspectRatio(
-        aspectRatio: 1.7,
-        child: LineChart(
-          mainData(),
-        ));
-  }
-
-  LineChartData mainData() {
-    final theme = Theme.of(context);
-    double minY = double.maxFinite;
-    double maxY = 0.0;
-
-    final spots = widget.timeseries.map((ab) {
-      if (minY > ab.value) minY = ab.value;
-      if (maxY < ab.value) maxY = ab.value;
-      return FlSpot(ab.day.toDouble(), ab.value);
-    }).toList();
-
-    _minX = spots.first.x;
-    _maxX = spots.last.x;
-    _minY = minY;
-    _maxY = maxY;
-    var yInterval = 1.1 * (_maxY - _minY) / 6;
-    if (yInterval == 0) {
-      yInterval = 1;
-    }
-
-    List<Color> gradientColors = [
-      theme.colorScheme.secondary,
-      theme.colorScheme.primary,
-    ];
-
-    final textStyle = theme.textTheme.bodyText1!;
-    final bgColor = theme.backgroundColor;
-
-    return LineChartData(
-      gridData: FlGridData(
-        show: true,
-        drawVerticalLine: true,
-        getDrawingHorizontalLine: (value) {
-          return FlLine(
-            color: theme.colorScheme.secondary.withOpacity(0.2),
-            strokeWidth: 1,
-          );
-        },
-        getDrawingVerticalLine: (value) {
-          return FlLine(
-            color: theme.colorScheme.secondary.withOpacity(0.2),
-            strokeWidth: 1,
-          );
-        },
-      ),
-      titlesData: FlTitlesData(
-        rightTitles: SideTitles(showTitles: false),
-        topTitles: SideTitles(showTitles: false),
-        bottomTitles: SideTitles(
-          showTitles: true,
-          reservedSize: 22,
-          getTextStyles: (context, value) => TextStyle(
-              color: theme.primaryColor,
-              fontWeight: FontWeight.bold,
-              fontSize: 12),
-          getTitles: (v) {
-            final dt = DateTime.fromMillisecondsSinceEpoch(v.toInt() * DAY_MS);
-            return DateFormat.Md().format(dt);
-          },
-        ),
-        leftTitles: SideTitles(
-          showTitles: true,
-          getTextStyles: (context, value) => TextStyle(
-            color: theme.primaryColor,
-            fontWeight: FontWeight.bold,
-            fontSize: 14,
-          ),
-          getTitles: (v) {
-            return numberFormat.format(v);
-          },
-          reservedSize: 40,
-          margin: 12,
-        ),
-      ),
-      borderData: FlBorderData(
-          show: true, border: Border.all(color: theme.colorScheme.secondary, width: 1)),
-      minX: _minX,
-      maxX: _maxX,
-      minY: _minY,
-      maxY: _maxY,
-      lineBarsData: [
-        LineChartBarData(
-          spots: spots,
-          isCurved: false,
-          colors: gradientColors,
-          barWidth: 4,
-          isStrokeCapRound: true,
-          dotData: FlDotData(
-            show: false,
-          ),
-          belowBarData: BarAreaData(
-            show: true,
-            colors:
-                gradientColors.map((color) => color.withOpacity(0.3)).toList(),
-          ),
-        ),
-      ],
-      lineTouchData: LineTouchData(
-        touchTooltipData: LineTouchTooltipData(
-          tooltipBgColor: bgColor,
-          getTooltipItems: (touchedSpots) =>
-              touchedSpots.map((LineBarSpot spot) {
-                final x = spot.x;
-                final dt = DateTime.fromMillisecondsSinceEpoch(x.toInt() * DAY_MS);
-                final xdt = DateFormat.Md().format(dt);
-                final y = decimalFormat(spot.y, 3);
-                return LineTooltipItem("$xdt - $y",
-                    textStyle);
-              }).toList()
-        )
+    return Container(
+      child: KChartWidget(datas,
+      ChartStyle(), ChartColors(context: context),
+      isLine: true,
+      volHidden: true,
+      showInfoDialog: true,
+      mainState: MainState.MA,
+      secondaryState: SecondaryState.NONE,
       )
     );
   }
 }
-
diff --git a/lib/coin/ycash.dart b/lib/coin/ycash.dart
index e10f33c..75e5f04 100644
--- a/lib/coin/ycash.dart
+++ b/lib/coin/ycash.dart
@@ -10,6 +10,6 @@ class Coin {
     LWInstance("Lightwalletd", "https://lite.ycash.xyz:9067"),
   ];
   bool supportsUA = false;
-
+  bool supportsMultisig = true;
   List<int> weights = [5, 25, 250];
 }
diff --git a/lib/coin/zcash.dart b/lib/coin/zcash.dart
index b18051c..b5fd5f6 100644
--- a/lib/coin/zcash.dart
+++ b/lib/coin/zcash.dart
@@ -11,5 +11,6 @@ class Coin {
     LWInstance("Zecwallet", "https://lwdv3.zecwallet.co"),
   ];
   bool supportsUA = false;
+  bool supportsMultisig = false;
   List<double> weights = [0.05, 0.25, 2.50];
 }
diff --git a/lib/coin/zcashtest.dart b/lib/coin/zcashtest.dart
index 7943fbf..a71d070 100644
--- a/lib/coin/zcashtest.dart
+++ b/lib/coin/zcashtest.dart
@@ -10,5 +10,6 @@ class Coin {
     LWInstance("Lightwalletd", "https://testnet.lightwalletd.com:9067"),
   ];
   bool supportsUA = false;
+  bool supportsMultisig = true;
   List<double> weights = [0.05, 0.25, 2.50];
 }
diff --git a/lib/generated/intl/messages_en.dart b/lib/generated/intl/messages_en.dart
index b8d1df9..a5e52ff 100644
--- a/lib/generated/intl/messages_en.dart
+++ b/lib/generated/intl/messages_en.dart
@@ -24,22 +24,29 @@ class MessageLookup extends MessageLookupByLibrary {
   static String m1(ticker) =>
       "Are you sure you want to save your contacts? It will cost 0.01 m${ticker}";
 
-  static String m2(ticker) =>
+  static String m2(address, amount) =>
+      "Do you want to sign a transaction to ${address} for ${amount}";
+
+  static String m3(ticker) =>
       "Do you want to transfer your entire transparent balance to your shielded address? A Network fee of 0.01 m${ticker} will be deducted.";
 
-  static String m3(ticker) => "Receive ${ticker}";
+  static String m4(num) => "${num} more signers needed";
 
-  static String m4(ticker) => "Send ${ticker}";
+  static String m5(ticker) => "Receive ${ticker}";
 
-  static String m5(ticker) => "Send ${ticker} to...";
+  static String m6(ticker) => "Send ${ticker}";
 
-  static String m6(amount, ticker, count) =>
+  static String m7(ticker) => "Send ${ticker} to...";
+
+  static String m8(amount, ticker, count) =>
       "Sending a total of ${amount} ${ticker} to ${count} recipients";
 
-  static String m7(aZEC, ticker, address) =>
+  static String m9(aZEC, ticker, address) =>
       "Sending ${aZEC} ${ticker} to ${address}";
 
-  static String m8(currency) => "Use ${currency}";
+  static String m10(text) => "${text} copied to clipboard";
+
+  static String m11(currency) => "Use ${currency}";
 
   final messages = _notInlinedMessages(_notInlinedMessages);
   static Map<String, Function> _notInlinedMessages(_) => <String, Function>{
@@ -102,9 +109,13 @@ class MessageLookup extends MessageLookupByLibrary {
         "color": MessageLookupByLibrary.simpleMessage("Color"),
         "confirmDeleteAccount": MessageLookupByLibrary.simpleMessage(
             "Are you SURE you want to DELETE this account? You MUST have a BACKUP to recover it. This operation is NOT reversible."),
+        "confirmSignATransactionToAddressFor": m2,
+        "confirmSigning":
+            MessageLookupByLibrary.simpleMessage("Confirm Signing"),
         "confs": MessageLookupByLibrary.simpleMessage("Confs"),
         "contactName": MessageLookupByLibrary.simpleMessage("Contact Name"),
         "contacts": MessageLookupByLibrary.simpleMessage("Contacts"),
+        "copy": MessageLookupByLibrary.simpleMessage("Copy"),
         "createANewAccount":
             MessageLookupByLibrary.simpleMessage("Tap + to add a new account"),
         "createANewContactAndItWillShowUpHere":
@@ -120,14 +131,18 @@ class MessageLookup extends MessageLookupByLibrary {
         "doYouWantToDeleteTheSecretKeyAndConvert":
             MessageLookupByLibrary.simpleMessage(
                 "Do you want to DELETE the secret key and convert this account to a watch-only account? You will not be able to spend from this device anymore. This operation is NOT reversible."),
-        "doYouWantToTransferYourEntireTransparentBalanceTo": m2,
+        "doYouWantToTransferYourEntireTransparentBalanceTo": m3,
         "duplicateAccount":
             MessageLookupByLibrary.simpleMessage("Duplicate Account"),
         "duplicateContact": MessageLookupByLibrary.simpleMessage(
             "Another contact has this address"),
+        "enterSecretShareIfAccountIsMultisignature":
+            MessageLookupByLibrary.simpleMessage(
+                "Enter secret share if account is multi-signature"),
         "enterSeed": MessageLookupByLibrary.simpleMessage(
             "Enter Seed, Secret Key or Viewing Key. Leave blank for a new account"),
         "excludedNotes": MessageLookupByLibrary.simpleMessage("Excluded Notes"),
+        "fileSaved": MessageLookupByLibrary.simpleMessage("File saved"),
         "gold": MessageLookupByLibrary.simpleMessage("Gold"),
         "height": MessageLookupByLibrary.simpleMessage("Height"),
         "help": MessageLookupByLibrary.simpleMessage("Help"),
@@ -150,6 +165,11 @@ class MessageLookup extends MessageLookupByLibrary {
         "mm": MessageLookupByLibrary.simpleMessage("M/M"),
         "multiPay": MessageLookupByLibrary.simpleMessage("Multi Pay"),
         "multipay": MessageLookupByLibrary.simpleMessage("MultiPay"),
+        "multipleAddresses":
+            MessageLookupByLibrary.simpleMessage("multiple addresses"),
+        "multisig": MessageLookupByLibrary.simpleMessage("Multisig"),
+        "multisigShares":
+            MessageLookupByLibrary.simpleMessage("Multisig Shares"),
         "na": MessageLookupByLibrary.simpleMessage("N/A"),
         "nameIsEmpty": MessageLookupByLibrary.simpleMessage("Name is empty"),
         "newSnapAddress":
@@ -164,6 +184,7 @@ class MessageLookup extends MessageLookupByLibrary {
         "notEnoughBalance":
             MessageLookupByLibrary.simpleMessage("Not enough balance"),
         "notes": MessageLookupByLibrary.simpleMessage("Notes"),
+        "numMoreSignersNeeded": m4,
         "numberOfConfirmationsNeededBeforeSpending":
             MessageLookupByLibrary.simpleMessage(
                 "Number of Confirmations Needed before Spending"),
@@ -190,7 +211,7 @@ class MessageLookup extends MessageLookupByLibrary {
         "purple": MessageLookupByLibrary.simpleMessage("Purple"),
         "qty": MessageLookupByLibrary.simpleMessage("Qty"),
         "realized": MessageLookupByLibrary.simpleMessage("Realized"),
-        "receive": m3,
+        "receive": m5,
         "receivePayment":
             MessageLookupByLibrary.simpleMessage("Receive Payment"),
         "rescan": MessageLookupByLibrary.simpleMessage("Rescan"),
@@ -209,16 +230,17 @@ class MessageLookup extends MessageLookupByLibrary {
             MessageLookupByLibrary.simpleMessage("Scan starting momentarily"),
         "secondary": MessageLookupByLibrary.simpleMessage("Secondary"),
         "secretKey": MessageLookupByLibrary.simpleMessage("Secret Key"),
+        "secretShare": MessageLookupByLibrary.simpleMessage("Secret Share"),
         "seed": MessageLookupByLibrary.simpleMessage("Seed"),
         "selectAccount": MessageLookupByLibrary.simpleMessage("Select Account"),
         "selectNotesToExcludeFromPayments":
             MessageLookupByLibrary.simpleMessage(
                 "Select notes to EXCLUDE from payments"),
         "send": MessageLookupByLibrary.simpleMessage("Send"),
-        "sendCointicker": m4,
-        "sendCointickerTo": m5,
-        "sendingATotalOfAmountCointickerToCountRecipients": m6,
-        "sendingAzecCointickerToAddress": m7,
+        "sendCointicker": m6,
+        "sendCointickerTo": m7,
+        "sendingATotalOfAmountCointickerToCountRecipients": m8,
+        "sendingAzecCointickerToAddress": m9,
         "server": MessageLookupByLibrary.simpleMessage("Server"),
         "settings": MessageLookupByLibrary.simpleMessage("Settings"),
         "shieldTranspBalance":
@@ -230,9 +252,11 @@ class MessageLookup extends MessageLookupByLibrary {
                 "Shield Transparent Balance When Sending"),
         "shieldingInProgress":
             MessageLookupByLibrary.simpleMessage("Shielding in progress..."),
+        "sign": MessageLookupByLibrary.simpleMessage("Sign Transaction"),
         "spendable": MessageLookupByLibrary.simpleMessage("Spendable"),
         "spendableBalance":
             MessageLookupByLibrary.simpleMessage("Spendable Balance"),
+        "splitAccount": MessageLookupByLibrary.simpleMessage("Split Account"),
         "synching": MessageLookupByLibrary.simpleMessage("Synching"),
         "table": MessageLookupByLibrary.simpleMessage("Table"),
         "tapAnIconToShowTheQrCode": MessageLookupByLibrary.simpleMessage(
@@ -246,6 +270,7 @@ class MessageLookup extends MessageLookupByLibrary {
             "Tap QR Code for Transparent Address"),
         "tapTransactionForDetails":
             MessageLookupByLibrary.simpleMessage("Tap Transaction for Details"),
+        "textCopiedToClipboard": m10,
         "theme": MessageLookupByLibrary.simpleMessage("Theme"),
         "themeEditor": MessageLookupByLibrary.simpleMessage("Theme Editor"),
         "thisAccountAlreadyExists": MessageLookupByLibrary.simpleMessage(
@@ -274,7 +299,7 @@ class MessageLookup extends MessageLookupByLibrary {
             MessageLookupByLibrary.simpleMessage("Unshielded Balance"),
         "unsignedTransactionFile":
             MessageLookupByLibrary.simpleMessage("Unsigned Transaction File"),
-        "useSettingscurrency": m8,
+        "useSettingscurrency": m11,
         "useTransparentBalance":
             MessageLookupByLibrary.simpleMessage("Use Transparent Balance"),
         "useUa": MessageLookupByLibrary.simpleMessage("Use UA"),
diff --git a/lib/generated/intl/messages_es.dart b/lib/generated/intl/messages_es.dart
index e820759..0cf7efc 100644
--- a/lib/generated/intl/messages_es.dart
+++ b/lib/generated/intl/messages_es.dart
@@ -24,22 +24,27 @@ class MessageLookup extends MessageLookupByLibrary {
   static String m1(ticker) =>
       "Estás seguro de que quieres guardar tus contactos? Costará 0,01 mZEC ";
 
-  static String m2(ticker) =>
+  static String m2(address, amount) =>
+      "Do you want to sign a transaction to ${address} for ${amount}";
+
+  static String m3(ticker) =>
       "¿Quiere transferir su saldo transparente a su dirección blindada? ";
 
-  static String m3(ticker) => "Recibir ${ticker}";
+  static String m5(ticker) => "Recibir ${ticker}";
 
-  static String m4(ticker) => "Enviar ${ticker}";
+  static String m6(ticker) => "Enviar ${ticker}";
 
-  static String m5(ticker) => "Enviar ${ticker} a…";
+  static String m7(ticker) => "Enviar ${ticker} a…";
 
-  static String m6(amount, ticker, count) =>
+  static String m8(amount, ticker, count) =>
       "Enviando un total de ${amount} ${ticker} a ${count} direcciones";
 
-  static String m7(aZEC, ticker, address) =>
+  static String m9(aZEC, ticker, address) =>
       "Enviado ${aZEC} ${ticker} a ${address}";
 
-  static String m8(currency) => "Utilizar ${currency}";
+  static String m10(text) => "${text} copied to clipboard";
+
+  static String m11(currency) => "Utilizar ${currency}";
 
   final messages = _notInlinedMessages(_notInlinedMessages);
   static Map<String, Function> _notInlinedMessages(_) => <String, Function>{
@@ -102,10 +107,14 @@ class MessageLookup extends MessageLookupByLibrary {
         "color": MessageLookupByLibrary.simpleMessage("Color"),
         "confirmDeleteAccount": MessageLookupByLibrary.simpleMessage(
             "¿Está SEGURO de que desea BORRAR esta cuenta? DEBE tener una COPIA DE SEGURIDAD para recuperarla. Esta operación NO es reversible."),
+        "confirmSignATransactionToAddressFor": m2,
+        "confirmSigning":
+            MessageLookupByLibrary.simpleMessage("Confirm Signing"),
         "confs": MessageLookupByLibrary.simpleMessage("Confs"),
         "contactName":
             MessageLookupByLibrary.simpleMessage("Nombre de contacto"),
         "contacts": MessageLookupByLibrary.simpleMessage("Contactos"),
+        "copy": MessageLookupByLibrary.simpleMessage("Copy"),
         "createANewAccount": MessageLookupByLibrary.simpleMessage(
             "Crea una cuenta y aparecerá aquí."),
         "createANewContactAndItWillShowUpHere":
@@ -123,13 +132,17 @@ class MessageLookup extends MessageLookupByLibrary {
         "doYouWantToDeleteTheSecretKeyAndConvert":
             MessageLookupByLibrary.simpleMessage(
                 "¿Quiere BORRAR la clave secreta y convertir esta cuenta a solo lectura? Ya no podrá gastar desde este dispositivo. Esta operación NO es reversible."),
-        "doYouWantToTransferYourEntireTransparentBalanceTo": m2,
+        "doYouWantToTransferYourEntireTransparentBalanceTo": m3,
         "duplicateAccount":
             MessageLookupByLibrary.simpleMessage("Cuenta duplicada"),
+        "enterSecretShareIfAccountIsMultisignature":
+            MessageLookupByLibrary.simpleMessage(
+                "Enter secret share if account is multi-signature"),
         "enterSeed": MessageLookupByLibrary.simpleMessage(
             "Ingrese Semilla, Clave Secreta o Clave Lectura. Dejar en blanco para una nueva cuenta "),
         "excludedNotes":
             MessageLookupByLibrary.simpleMessage("Notas Excluidas"),
+        "fileSaved": MessageLookupByLibrary.simpleMessage("File saved"),
         "gold": MessageLookupByLibrary.simpleMessage("Oro"),
         "height": MessageLookupByLibrary.simpleMessage("Altura"),
         "help": MessageLookupByLibrary.simpleMessage("Ayuda"),
@@ -151,6 +164,11 @@ class MessageLookup extends MessageLookupByLibrary {
         "mm": MessageLookupByLibrary.simpleMessage("M/M"),
         "multiPay": MessageLookupByLibrary.simpleMessage("Multi Pagos"),
         "multipay": MessageLookupByLibrary.simpleMessage("MultiPagos"),
+        "multipleAddresses":
+            MessageLookupByLibrary.simpleMessage("multiple addresses"),
+        "multisig": MessageLookupByLibrary.simpleMessage("Multisig"),
+        "multisigShares":
+            MessageLookupByLibrary.simpleMessage("Multisig Shares"),
         "na": MessageLookupByLibrary.simpleMessage("N/A"),
         "nameIsEmpty": MessageLookupByLibrary.simpleMessage("Nombre vacio"),
         "newSnapAddress":
@@ -192,7 +210,7 @@ class MessageLookup extends MessageLookupByLibrary {
         "purple": MessageLookupByLibrary.simpleMessage("Morada"),
         "qty": MessageLookupByLibrary.simpleMessage("Cantidad"),
         "realized": MessageLookupByLibrary.simpleMessage("Dio Cuenta"),
-        "receive": m3,
+        "receive": m5,
         "receivePayment":
             MessageLookupByLibrary.simpleMessage("Recibir un pago"),
         "rescan": MessageLookupByLibrary.simpleMessage("Escanear"),
@@ -212,6 +230,7 @@ class MessageLookup extends MessageLookupByLibrary {
             "Escaneo comenzando momentáneamente "),
         "secondary": MessageLookupByLibrary.simpleMessage("Secundario"),
         "secretKey": MessageLookupByLibrary.simpleMessage("Llave Secreta"),
+        "secretShare": MessageLookupByLibrary.simpleMessage("Secret Share"),
         "seed": MessageLookupByLibrary.simpleMessage("Semilla"),
         "selectAccount":
             MessageLookupByLibrary.simpleMessage("Seleccionar cuenta"),
@@ -219,10 +238,10 @@ class MessageLookup extends MessageLookupByLibrary {
             MessageLookupByLibrary.simpleMessage(
                 "Seleccionar Notas a EXCLUIR de los pagos"),
         "send": MessageLookupByLibrary.simpleMessage("Enviar"),
-        "sendCointicker": m4,
-        "sendCointickerTo": m5,
-        "sendingATotalOfAmountCointickerToCountRecipients": m6,
-        "sendingAzecCointickerToAddress": m7,
+        "sendCointicker": m6,
+        "sendCointickerTo": m7,
+        "sendingATotalOfAmountCointickerToCountRecipients": m8,
+        "sendingAzecCointickerToAddress": m9,
         "server": MessageLookupByLibrary.simpleMessage("Servidor"),
         "settings": MessageLookupByLibrary.simpleMessage("Ajustes"),
         "shieldTranspBalance":
@@ -231,9 +250,11 @@ class MessageLookup extends MessageLookupByLibrary {
             MessageLookupByLibrary.simpleMessage("Blindar Saldo Transparente"),
         "shieldingInProgress":
             MessageLookupByLibrary.simpleMessage("Blindaje en progreso…"),
+        "sign": MessageLookupByLibrary.simpleMessage("Sign"),
         "spendable": MessageLookupByLibrary.simpleMessage("Gastable"),
         "spendableBalance":
             MessageLookupByLibrary.simpleMessage("Saldo Gastable"),
+        "splitAccount": MessageLookupByLibrary.simpleMessage("Split Account"),
         "synching": MessageLookupByLibrary.simpleMessage("Sincronizando"),
         "table": MessageLookupByLibrary.simpleMessage("Lista"),
         "tapAnIconToShowTheQrCode": MessageLookupByLibrary.simpleMessage(
@@ -247,6 +268,7 @@ class MessageLookup extends MessageLookupByLibrary {
             "Pinchar QR para Dirección Transparente"),
         "tapTransactionForDetails": MessageLookupByLibrary.simpleMessage(
             "Toque Transacción para detalles"),
+        "textCopiedToClipboard": m10,
         "theme": MessageLookupByLibrary.simpleMessage("Tema"),
         "themeEditor": MessageLookupByLibrary.simpleMessage("Editora de temas"),
         "thisAccountAlreadyExists":
@@ -275,7 +297,7 @@ class MessageLookup extends MessageLookupByLibrary {
             MessageLookupByLibrary.simpleMessage("Saldo sin blindaje"),
         "unsignedTransactionFile": MessageLookupByLibrary.simpleMessage(
             "Archivo de transaccion sin firmar"),
-        "useSettingscurrency": m8,
+        "useSettingscurrency": m11,
         "useTransparentBalance":
             MessageLookupByLibrary.simpleMessage("Usar Saldo Transp"),
         "useUa": MessageLookupByLibrary.simpleMessage("Usar UA"),
diff --git a/lib/generated/intl/messages_fr.dart b/lib/generated/intl/messages_fr.dart
index cc74a55..4cd953e 100644
--- a/lib/generated/intl/messages_fr.dart
+++ b/lib/generated/intl/messages_fr.dart
@@ -24,22 +24,27 @@ class MessageLookup extends MessageLookupByLibrary {
   static String m1(ticker) =>
       "Voulez vous sauver vos contacts? Ceci coute 0.01 m${ticker}";
 
-  static String m2(ticker) =>
+  static String m2(address, amount) =>
+      "Do you want to sign a transaction to ${address} for ${amount}";
+
+  static String m3(ticker) =>
       "Voulez-vous transférer l\'intégralité de votre solde transparent à votre adresse protégée?";
 
-  static String m3(ticker) => "Recevoir ${ticker}";
+  static String m5(ticker) => "Recevoir ${ticker}";
 
-  static String m4(ticker) => "Envoyer ${ticker}";
+  static String m6(ticker) => "Envoyer ${ticker}";
 
-  static String m5(ticker) => "Envoyer ${ticker} à...";
+  static String m7(ticker) => "Envoyer ${ticker} à...";
 
-  static String m6(amount, ticker, count) =>
+  static String m8(amount, ticker, count) =>
       "Envoi d\'un total de ${amount} ${ticker} à ${count} destinataires";
 
-  static String m7(aZEC, ticker, address) =>
+  static String m9(aZEC, ticker, address) =>
       "Envoi de ${aZEC} ${ticker} à ${address}";
 
-  static String m8(currency) => "Utiliser ${currency}";
+  static String m10(text) => "${text} copied to clipboard";
+
+  static String m11(currency) => "Utiliser ${currency}";
 
   final messages = _notInlinedMessages(_notInlinedMessages);
   static Map<String, Function> _notInlinedMessages(_) => <String, Function>{
@@ -104,9 +109,13 @@ class MessageLookup extends MessageLookupByLibrary {
         "color": MessageLookupByLibrary.simpleMessage("Couleur"),
         "confirmDeleteAccount": MessageLookupByLibrary.simpleMessage(
             "Êtes-vous SUR de vouloir SUPPRIMER ce compte ? Vous DEVEZ avoir une SAUVEGARDE pour le récupérer. Cette opération n\'est PAS réversible."),
+        "confirmSignATransactionToAddressFor": m2,
+        "confirmSigning":
+            MessageLookupByLibrary.simpleMessage("Confirm Signing"),
         "confs": MessageLookupByLibrary.simpleMessage("Confs"),
         "contactName": MessageLookupByLibrary.simpleMessage("Nom du Contact"),
         "contacts": MessageLookupByLibrary.simpleMessage("Mes Contacts"),
+        "copy": MessageLookupByLibrary.simpleMessage("Copy"),
         "createANewAccount": MessageLookupByLibrary.simpleMessage(
             "Créez un nouveau compte et il apparaîtra ici"),
         "createANewContactAndItWillShowUpHere":
@@ -125,12 +134,16 @@ class MessageLookup extends MessageLookupByLibrary {
         "doYouWantToDeleteTheSecretKeyAndConvert":
             MessageLookupByLibrary.simpleMessage(
                 "Voulez-vous SUPPRIMER la clé secrète et convertir ce compte en un compte d\'observation ? Vous ne pourrez plus dépenser depuis cet appareil. Cette opération n\'est PAS réversible."),
-        "doYouWantToTransferYourEntireTransparentBalanceTo": m2,
+        "doYouWantToTransferYourEntireTransparentBalanceTo": m3,
         "duplicateAccount":
             MessageLookupByLibrary.simpleMessage("Compte en double"),
+        "enterSecretShareIfAccountIsMultisignature":
+            MessageLookupByLibrary.simpleMessage(
+                "Enter secret share if account is multi-signature"),
         "enterSeed": MessageLookupByLibrary.simpleMessage(
             "Entrez la graine, la clé secrète ou la clé de visualisation. Laissez vide pour un nouveau compte"),
         "excludedNotes": MessageLookupByLibrary.simpleMessage("Billets exclus"),
+        "fileSaved": MessageLookupByLibrary.simpleMessage("File saved"),
         "gold": MessageLookupByLibrary.simpleMessage("Or"),
         "height": MessageLookupByLibrary.simpleMessage("Hauteur"),
         "help": MessageLookupByLibrary.simpleMessage("Aide"),
@@ -152,6 +165,11 @@ class MessageLookup extends MessageLookupByLibrary {
         "mm": MessageLookupByLibrary.simpleMessage("Virtuel"),
         "multiPay": MessageLookupByLibrary.simpleMessage("Envoyer à plusieurs"),
         "multipay": MessageLookupByLibrary.simpleMessage("Envoyer à plusieurs"),
+        "multipleAddresses":
+            MessageLookupByLibrary.simpleMessage("multiple addresses"),
+        "multisig": MessageLookupByLibrary.simpleMessage("Multisig"),
+        "multisigShares":
+            MessageLookupByLibrary.simpleMessage("Multisig Shares"),
         "na": MessageLookupByLibrary.simpleMessage("N/D"),
         "nameIsEmpty": MessageLookupByLibrary.simpleMessage("Le nom est vide"),
         "newSnapAddress": MessageLookupByLibrary.simpleMessage(
@@ -194,7 +212,7 @@ class MessageLookup extends MessageLookupByLibrary {
         "purple": MessageLookupByLibrary.simpleMessage("Violet"),
         "qty": MessageLookupByLibrary.simpleMessage("Quantité"),
         "realized": MessageLookupByLibrary.simpleMessage("Réalisé"),
-        "receive": m3,
+        "receive": m5,
         "receivePayment":
             MessageLookupByLibrary.simpleMessage("Recevoir un payment"),
         "rescan": MessageLookupByLibrary.simpleMessage("Parcourir à nouveau"),
@@ -213,6 +231,7 @@ class MessageLookup extends MessageLookupByLibrary {
             "Le scan démarre momentanément"),
         "secondary": MessageLookupByLibrary.simpleMessage("Secondaire"),
         "secretKey": MessageLookupByLibrary.simpleMessage("Clé secrète"),
+        "secretShare": MessageLookupByLibrary.simpleMessage("Secret Share"),
         "seed": MessageLookupByLibrary.simpleMessage("Graine"),
         "selectAccount":
             MessageLookupByLibrary.simpleMessage("Choisissez un compte"),
@@ -220,10 +239,10 @@ class MessageLookup extends MessageLookupByLibrary {
             MessageLookupByLibrary.simpleMessage(
                 "Sélectionnez les billets à EXCLURE des paiements"),
         "send": MessageLookupByLibrary.simpleMessage("Envoyer"),
-        "sendCointicker": m4,
-        "sendCointickerTo": m5,
-        "sendingATotalOfAmountCointickerToCountRecipients": m6,
-        "sendingAzecCointickerToAddress": m7,
+        "sendCointicker": m6,
+        "sendCointickerTo": m7,
+        "sendingATotalOfAmountCointickerToCountRecipients": m8,
+        "sendingAzecCointickerToAddress": m9,
         "server": MessageLookupByLibrary.simpleMessage("Serveur"),
         "settings": MessageLookupByLibrary.simpleMessage("Paramètres"),
         "shieldTranspBalance": MessageLookupByLibrary.simpleMessage(
@@ -232,9 +251,11 @@ class MessageLookup extends MessageLookupByLibrary {
             "Masquer le solde transparent"),
         "shieldingInProgress":
             MessageLookupByLibrary.simpleMessage("Masquage en cours..."),
+        "sign": MessageLookupByLibrary.simpleMessage("Sign"),
         "spendable": MessageLookupByLibrary.simpleMessage("Dépensable"),
         "spendableBalance":
             MessageLookupByLibrary.simpleMessage("Montant dépensable"),
+        "splitAccount": MessageLookupByLibrary.simpleMessage("Split Account"),
         "synching":
             MessageLookupByLibrary.simpleMessage("Synchronisation en cours"),
         "table": MessageLookupByLibrary.simpleMessage("Tableau"),
@@ -249,6 +270,7 @@ class MessageLookup extends MessageLookupByLibrary {
             "Appuyez sur le code QR pour l\'adresse transparente"),
         "tapTransactionForDetails": MessageLookupByLibrary.simpleMessage(
             "Presser sur une Transaction pour plus de details"),
+        "textCopiedToClipboard": m10,
         "theme": MessageLookupByLibrary.simpleMessage("Thème"),
         "themeEditor": MessageLookupByLibrary.simpleMessage("Editeur de Thème"),
         "thisAccountAlreadyExists":
@@ -277,7 +299,7 @@ class MessageLookup extends MessageLookupByLibrary {
             MessageLookupByLibrary.simpleMessage("Solde Transparent"),
         "unsignedTransactionFile": MessageLookupByLibrary.simpleMessage(
             "Fichier de transaction non signée"),
-        "useSettingscurrency": m8,
+        "useSettingscurrency": m11,
         "useTransparentBalance": MessageLookupByLibrary.simpleMessage(
             "Utiliser le Solde Transparent"),
         "useUa": MessageLookupByLibrary.simpleMessage("Utiliser UA"),
diff --git a/lib/generated/l10n.dart b/lib/generated/l10n.dart
index cf05923..1d1dc91 100644
--- a/lib/generated/l10n.dart
+++ b/lib/generated/l10n.dart
@@ -1661,6 +1661,136 @@ class S {
       args: [],
     );
   }
+
+  /// `Multisig`
+  String get multisig {
+    return Intl.message(
+      'Multisig',
+      name: 'multisig',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Enter secret share if account is multi-signature`
+  String get enterSecretShareIfAccountIsMultisignature {
+    return Intl.message(
+      'Enter secret share if account is multi-signature',
+      name: 'enterSecretShareIfAccountIsMultisignature',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Secret Share`
+  String get secretShare {
+    return Intl.message(
+      'Secret Share',
+      name: 'secretShare',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `File saved`
+  String get fileSaved {
+    return Intl.message(
+      'File saved',
+      name: 'fileSaved',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `{num} more signers needed`
+  String numMoreSignersNeeded(Object num) {
+    return Intl.message(
+      '$num more signers needed',
+      name: 'numMoreSignersNeeded',
+      desc: '',
+      args: [num],
+    );
+  }
+
+  /// `Sign Transaction`
+  String get sign {
+    return Intl.message(
+      'Sign Transaction',
+      name: 'sign',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Split Account`
+  String get splitAccount {
+    return Intl.message(
+      'Split Account',
+      name: 'splitAccount',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Confirm Signing`
+  String get confirmSigning {
+    return Intl.message(
+      'Confirm Signing',
+      name: 'confirmSigning',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Do you want to sign a transaction to {address} for {amount}`
+  String confirmSignATransactionToAddressFor(Object address, Object amount) {
+    return Intl.message(
+      'Do you want to sign a transaction to $address for $amount',
+      name: 'confirmSignATransactionToAddressFor',
+      desc: '',
+      args: [address, amount],
+    );
+  }
+
+  /// `Multisig Shares`
+  String get multisigShares {
+    return Intl.message(
+      'Multisig Shares',
+      name: 'multisigShares',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Copy`
+  String get copy {
+    return Intl.message(
+      'Copy',
+      name: 'copy',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `{text} copied to clipboard`
+  String textCopiedToClipboard(Object text) {
+    return Intl.message(
+      '$text copied to clipboard',
+      name: 'textCopiedToClipboard',
+      desc: '',
+      args: [text],
+    );
+  }
+
+  /// `multiple addresses`
+  String get multipleAddresses {
+    return Intl.message(
+      'multiple addresses',
+      name: 'multipleAddresses',
+      desc: '',
+      args: [],
+    );
+  }
 }
 
 class AppLocalizationDelegate extends LocalizationsDelegate<S> {
diff --git a/lib/l10n/intl_en.arb b/lib/l10n/intl_en.arb
index 36d5586..9e371ad 100644
--- a/lib/l10n/intl_en.arb
+++ b/lib/l10n/intl_en.arb
@@ -159,5 +159,18 @@
   "color": "Color",
   "accentColor": "Accent Color",
   "primary": "Primary",
-  "secondary": "Secondary"
+  "secondary": "Secondary",
+  "multisig": "Multisig",
+  "enterSecretShareIfAccountIsMultisignature": "Enter secret share if account is multi-signature",
+  "secretShare": "Secret Share",
+  "fileSaved": "File saved",
+  "numMoreSignersNeeded": "{num} more signers needed",
+  "sign": "Sign Transaction",
+  "splitAccount": "Split Account",
+  "confirmSigning": "Confirm Signing",
+  "confirmSignATransactionToAddressFor": "Do you want to sign a transaction to {address} for {amount}",
+  "multisigShares": "Multisig Shares",
+  "copy": "Copy",
+  "textCopiedToClipboard": "{text} copied to clipboard",
+  "multipleAddresses": "multiple addresses"
 }
diff --git a/lib/l10n/intl_es.arb b/lib/l10n/intl_es.arb
index 79848cb..9a0337d 100644
--- a/lib/l10n/intl_es.arb
+++ b/lib/l10n/intl_es.arb
@@ -159,5 +159,17 @@
   "color": "Color",
   "accentColor": "Acento Color",
   "primary": "Primario",
-  "secondary": "Secundario"
+  "secondary": "Secundario",
+  "multisig": "Multisig",
+  "enterSecretShareIfAccountIsMultisignature": "Enter secret share if account is multi-signature",
+  "secretShare": "Secret Share",
+  "fileSaved": "File saved",
+  "sign": "Sign",
+  "splitAccount": "Split Account",
+  "confirmSigning": "Confirm Signing",
+  "confirmSignATransactionToAddressFor": "Do you want to sign a transaction to {address} for {amount}",
+  "multisigShares": "Multisig Shares",
+  "copy": "Copy",
+  "textCopiedToClipboard": "{text} copied to clipboard",
+  "multipleAddresses": "multiple addresses"
 }
diff --git a/lib/l10n/intl_fr.arb b/lib/l10n/intl_fr.arb
index 12f3651..ab1c07d 100644
--- a/lib/l10n/intl_fr.arb
+++ b/lib/l10n/intl_fr.arb
@@ -159,5 +159,17 @@
   "color": "Couleur",
   "accentColor": "Couleur d'accent",
   "primary": "Primaire",
-  "secondary": "Secondaire"
+  "secondary": "Secondaire",
+  "multisig": "Multisig",
+  "enterSecretShareIfAccountIsMultisignature": "Enter secret share if account is multi-signature",
+  "secretShare": "Secret Share",
+  "fileSaved": "File saved",
+  "sign": "Sign",
+  "splitAccount": "Split Account",
+  "confirmSigning": "Confirm Signing",
+  "confirmSignATransactionToAddressFor": "Do you want to sign a transaction to {address} for {amount}",
+  "multisigShares": "Multisig Shares",
+  "copy": "Copy",
+  "textCopiedToClipboard": "{text} copied to clipboard",
+  "multipleAddresses": "multiple addresses"
 }
diff --git a/lib/main.dart b/lib/main.dart
index 7cc83bc..66bf925 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -31,6 +31,7 @@ import 'account_manager.dart';
 import 'backup.dart';
 import 'coin/coindef.dart';
 import 'multisend.dart';
+import 'multisign.dart';
 import 'payment_uri.dart';
 import 'settings.dart';
 import 'restore.dart';
@@ -92,6 +93,7 @@ void handleQuickAction(BuildContext context, String shortcut) {
 void main() {
   WidgetsFlutterBinding.ensureInitialized();
   final home = ZWalletApp();
+  // final home = MultisigPage();
   runApp(FutureBuilder(
       future: settings.restore(),
       builder: (context, snapshot) {
@@ -127,6 +129,9 @@ void main() {
                           TransactionPage(routeSettings.arguments as Tx),
                       '/backup': (context) => BackupPage(routeSettings.arguments as int?),
                       '/multipay': (context) => MultiPayPage(),
+                      '/multisig': (context) => MultisigPage(),
+                      '/multisign': (context) => MultisigAggregatorPage(routeSettings.arguments as TxSummary),
+                      '/multisig_shares': (context) => MultisigSharesPage(routeSettings.arguments as String),
                       '/edit_theme': (context) => ThemeEditorPage(onSaved: settings.updateCustomThemeColors),
                     };
                     return MaterialPageRoute(builder: routes[routeSettings.name]!);
@@ -264,14 +269,26 @@ String unwrapUA(String address) {
   return zaddr.isNotEmpty ? zaddr : address;
 }
 
-void showQR(BuildContext context, String text) {
+void showQR(BuildContext context, String text, String title) {
+  final s = S.of(context);
   showDialog(
       context: context,
       barrierColor: Colors.black,
       builder: (context) => AlertDialog(
             content: Container(
                 width: double.maxFinite,
-                child: QrImage(data: text, backgroundColor: Colors.white)),
+                child: SingleChildScrollView(child: Column(children: [
+                  QrImage(data: text, backgroundColor: Colors.white),
+                  Padding(padding: EdgeInsets.all(8)),
+                  Text(title, style: Theme.of(context).textTheme.subtitle1),
+                  Padding(padding: EdgeInsets.all(4)),
+                  ElevatedButton.icon(onPressed: () {
+                    Navigator.of(context).pop();
+                    Clipboard.setData(ClipboardData(text: text));
+                    final snackBar = SnackBar(content: Text(s.textCopiedToClipboard(title)));
+                    rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar);
+                  }, icon: Icon(Icons.copy), label: Text(s.copy))
+                ])))
           ));
 }
 
diff --git a/lib/multisend.dart b/lib/multisend.dart
index 61c5847..2b26de7 100644
--- a/lib/multisend.dart
+++ b/lib/multisend.dart
@@ -2,17 +2,18 @@ import 'dart:convert';
 
 import 'package:decimal/decimal.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_barcode_scanner/flutter_barcode_scanner.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:flutter_typeahead/flutter_typeahead.dart';
 import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
 import 'package:warp/store.dart';
 import 'package:warp_api/warp_api.dart';
+import 'package:warp_api/types.dart';
 
 import 'dualmoneyinput.dart';
 import 'main.dart';
 import 'generated/l10n.dart';
+import 'send.dart';
 
 class MultiPayPage extends StatefulWidget {
   @override
@@ -51,14 +52,9 @@ class MultiPayState extends State<MultiPayPage> {
   }
 
   _add() async {
-    final r = await showDialog<Recipient>(
-        context: context,
-        barrierDismissible: false,
-        builder: (context) => Dialog(
-              child: PayRecipient(),
-            ));
-    if (r != null) {
-      multipayData.addRecipient(r);
+    final recipient = await Navigator.of(context).pushNamed('/send', arguments: SendPageArgs(isMulti: true, recipients: multipayData.recipients)) as Recipient?;
+    if (recipient != null) {
+      multipayData.addRecipient(recipient);
     }
   }
 
@@ -88,17 +84,7 @@ class MultiPayState extends State<MultiPayPage> {
                 cancelValue: false)));
 
     if (approved) {
-      final s = S.of(context);
-      Navigator.of(context).pop();
-
-      final snackBar1 = SnackBar(content: Text(s.preparingTransaction));
-      rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar1);
-
-      final recipientsJson = jsonEncode(multipayData.recipients);
-      final tx = await WarpApi.sendMultiPayment(accountManager.active.id,
-          recipientsJson, settings.anchorOffset, (p) {});
-      final snackBar2 = SnackBar(content: Text("${s.txId}: $tx"));
-      rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar2);
+      await send(context, multipayData.recipients, false);
 
       multipayData.clear();
       await accountManager.fetchAccountData(true);
@@ -106,105 +92,6 @@ class MultiPayState extends State<MultiPayPage> {
   }
 }
 
-class PayRecipient extends StatefulWidget {
-  PayRecipient();
-
-  @override
-  State<StatefulWidget> createState() => PayRecipientState();
-}
-
-class PayRecipientState extends State<PayRecipient> {
-  final _formKey = GlobalKey<FormState>();
-  final _addressController = TextEditingController();
-  final _memoController = TextEditingController();
-  final amountKey = GlobalKey<DualMoneyInputState>();
-
-  @override
-  Widget build(BuildContext context) {
-    return GestureDetector(
-        onTap: () {
-          FocusScope.of(context).unfocus();
-        }, child: Form(
-        key: _formKey,
-        child: SingleChildScrollView(
-          child: Column(children: <Widget>[
-            Row(children: <Widget>[
-              Expanded(
-                child: TypeAheadFormField(
-                  textFieldConfiguration: TextFieldConfiguration(
-                      decoration: InputDecoration(
-                          labelText:
-                              S.of(context).sendCointickerTo(coin.ticker)),
-                      controller: _addressController,
-                      minLines: 4,
-                      maxLines: 10,
-                      keyboardType: TextInputType.multiline),
-                  validator: _checkAddress,
-                  onSuggestionSelected: (Contact contact) {
-                    _addressController.text = contact.name;
-                  },
-                  suggestionsCallback: (String pattern) {
-                    return contacts.contacts.where((c) =>
-                        c.name.toLowerCase().contains(pattern.toLowerCase()));
-                  },
-                  itemBuilder: (BuildContext context, Contact c) =>
-                      ListTile(title: Text(c.name)),
-                  noItemsFoundBuilder: (_) => SizedBox(),
-                ),
-              ),
-              IconButton(
-                  icon: new Icon(MdiIcons.qrcodeScan), onPressed: _onScan)
-            ]),
-            DualMoneyInputWidget(key: amountKey),
-            TextFormField(
-              decoration: InputDecoration(labelText: S.of(context).memo),
-              minLines: 4,
-              maxLines: null,
-              keyboardType: TextInputType.multiline,
-              controller: _memoController,
-            ),
-            ButtonBar(
-                children: confirmButtons(context, _onAdd,
-                    okLabel: S.of(context).add, okIcon: Icon(MdiIcons.plus)))
-          ]),
-        )));
-  }
-
-  void _onScan() async {
-    final address = await scanCode(context);
-    if (address != null)
-      setState(() {
-        _addressController.text = address;
-      });
-  }
-
-  void _onAdd() {
-    final form = _formKey.currentState!;
-
-    if (form.validate()) {
-      form.save();
-      final amount = amountKey.currentState!.amount;
-      final c =
-          contacts.contacts.where((c) => c.name == _addressController.text);
-      final address =
-          c.isEmpty ? unwrapUA(_addressController.text) : c.first.address;
-      final r = Recipient(
-          address, amount, _memoController.text);
-      Navigator.of(context).pop(r);
-    }
-  }
-
-  String? _checkAddress(String? v) {
-    if (v == null || v.isEmpty) return S.of(context).addressIsEmpty;
-    final c = contacts.contacts.where((c) => c.name == v);
-    if (c.isNotEmpty) return null;
-    final zaddr = WarpApi.getSaplingFromUA(v);
-    if (zaddr.isNotEmpty) return null;
-    if (!WarpApi.validAddress(v)) return S.of(context).invalidAddress;
-    return null;
-  }
-}
-
 class NoRecipient extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
diff --git a/lib/multisign.dart b/lib/multisign.dart
new file mode 100644
index 0000000..a98f0db
--- /dev/null
+++ b/lib/multisign.dart
@@ -0,0 +1,299 @@
+import 'dart:convert';
+import 'dart:isolate';
+
+import 'package:fl_chart/fl_chart.dart';
+import 'package:flutter/material.dart';
+import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
+import 'package:network_info_plus/network_info_plus.dart';
+import 'package:qr_flutter/qr_flutter.dart';
+import 'package:warp/store.dart';
+import 'package:warp_api/warp_api.dart';
+import 'generated/l10n.dart';
+import 'package:convert/convert.dart';
+
+import 'main.dart';
+
+const PORT = 4000;
+
+class MultisigAggregatorPage extends StatefulWidget {
+  final TxSummary txSummary;
+
+  MultisigAggregatorPage(this.txSummary);
+
+  @override
+  MultisigAggregatorState createState() => MultisigAggregatorState();
+}
+
+class MultisigAggregatorState extends State<MultisigAggregatorPage> {
+  String _wifiIP = '';
+  ShareInfo? _shareInfo;
+  int _peerCount = 0;
+
+  @override
+  void initState() {
+    super.initState();
+    Future.microtask(() async {
+      var peerPort = ReceivePort();
+      var peerStream = peerPort.asBroadcastStream();
+      peerStream.listen((_) {
+        print("Received a new peer");
+        _peerCount += 1;
+      });
+
+      final info = NetworkInfo();
+      final wifiIP = await info.getWifiIP() ?? '';
+      final shareInfo = await accountManager.getShareInfo(accountManager.active.id);
+      _runAggregator(peerPort.sendPort);
+      setState(() {
+        _wifiIP = wifiIP;
+        _shareInfo = shareInfo;
+      });
+    });
+  }
+
+  @override
+  void dispose() {
+    _stopAggregator();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final qrSize = getScreenSize(context) / 2.5;
+    final shareInfo = _shareInfo;
+    return Scaffold(
+            appBar: AppBar(
+              title: Text('Sign Multisig Transaction'),
+            ),
+            body: Center(
+                child: Column(
+              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+              children: [
+                Column(children: [
+                  QrImage(
+                      data: txSummaryString,
+                      size: qrSize,
+                      backgroundColor: Colors.white),
+                  Padding(padding: EdgeInsets.all(8)),
+                  Text('Scan this code on your other devices'),
+                ]),
+                if (shareInfo != null)
+                  SignerPie(qrSize.toInt(), _peerCount + 1,
+                      shareInfo.threshold, shareInfo.participants),
+              ],
+        )));
+  }
+
+  void _runAggregator(SendPort port) async {
+    final s = S.of(context);
+    await WarpApi.runAggregator(accountManager.active.share!.value, PORT, port);
+    // Need to wait a bit for the service to spin up
+    await Future.delayed(Duration(seconds: 3));
+    final tx = await WarpApi.submitTx(widget.txSummary.txJson, PORT);
+    SnackBar snackBar;
+    if (tx.startsWith("00")) { // first byte is success/error
+      final txId = WarpApi.broadcastHex(tx.substring(2));
+      snackBar = SnackBar(content: Text("${s.txId}: $txId"));
+    }
+    else {
+      final msgHex = tx.substring(2);
+      final s = hex.decode(msgHex);
+      final dec = Utf8Decoder();
+      final msg = dec.convert(s);
+      snackBar = SnackBar(content: Text(msg));
+    }
+    rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar);
+    Navigator.of(context).pop();
+  }
+
+  void _stopAggregator() {
+    WarpApi.stopAggregator();
+  }
+
+  String get txSummaryString =>
+      "http://$_wifiIP:$PORT|${widget.txSummary.address}|${widget.txSummary.amount}";
+}
+
+class SignerPie extends StatelessWidget {
+  final int size;
+  final int available;
+  final int threshold;
+  final int participants;
+
+  SignerPie(this.size, this.available, this.threshold, this.participants);
+
+  @override
+  Widget build(BuildContext context) {
+    final remaining = threshold - available;
+    return Column(children: [
+      SizedBox(
+          width: 150,
+          height: 150,
+          child: PieChart(PieChartData(
+              sectionsSpace: 1,
+              centerSpaceRadius: 0,
+              startDegreeOffset: -90,
+              sections: showingSections()))),
+      Text(S.of(context).numMoreSignersNeeded(remaining)),
+    ]);
+  }
+
+  List<PieChartSectionData> showingSections() {
+    final value = 100 / participants;
+    final size = this.size / 3;
+    return List.generate(
+      participants,
+      (i) {
+        if (i < available) {
+          return PieChartSectionData(
+              color: Colors.green, title: '', value: value, radius: size);
+        } else if (i < threshold) {
+          return PieChartSectionData(
+              color: Colors.red, title: '', value: value, radius: size);
+        }
+        return PieChartSectionData(
+            color: Colors.green, title: '', value: value, radius: size);
+      },
+    );
+  }
+}
+
+const SIGNER_PORT = 4001;
+
+class MultisigPage extends StatefulWidget {
+  @override
+  MultisigState createState() => MultisigState();
+}
+
+class MultisigState extends State<MultisigPage> {
+  String _aggregatorUrl = "";
+  String _address = "";
+  int _amount = 0;
+  final _formKey = GlobalKey<FormState>();
+  int _participants = 2;
+  int _threshold = 2;
+
+  @override
+  Widget build(BuildContext context) {
+    final canMultisign = accountManager.active.share != null;
+    return Scaffold(
+        appBar: AppBar(title: Text(S.of(context).multisig)),
+        body: SingleChildScrollView(
+            child: Form(
+                key: _formKey,
+                child: Column(children: [
+                  if (canMultisign) Card(
+                      elevation: 1,
+                      child: Padding(
+                          padding: EdgeInsets.all(32),
+                          child: Center(
+                              child: ElevatedButton.icon(
+                                  onPressed: _scan,
+                                  icon: Icon(MdiIcons.signatureFreehand),
+                                  label: Text(S.of(context).sign))))),
+                  if (accountManager.canPay) Card(
+                      elevation: 1,
+                      child: Padding(
+                          padding: EdgeInsets.all(32),
+                          child: Center(
+                            child: Column(children: [
+                              Text('Number of Participants'),
+                              Slider(min: 2, max: 10, divisions: 8, onChanged: _onChangedParticipants, value: _participants.toDouble()),
+                              Padding(padding: EdgeInsets.all(4)),
+                              Text('Threshold (Number of Signers Required)'),
+                              Slider(min: 2, max: 10, divisions: 8, onChanged: _onChangedThreshold, value: _threshold.toDouble()),
+                              Padding(padding: EdgeInsets.all(8)),
+                              Text('$_threshold / $_participants', style: Theme.of(context).textTheme.headline5),
+                              Padding(padding: EdgeInsets.all(8)),
+                              ElevatedButton.icon(onPressed: _split, icon: Icon(MdiIcons.rhombusSplit), label: Text(S.of(context).splitAccount))
+                            ])
+                          )))
+                ]))));
+  }
+
+  _onChangedParticipants(v) {
+    setState(() {
+      _participants = v.toInt();
+      if (_threshold > _participants)
+        _threshold = _participants;
+    });
+  }
+
+  _onChangedThreshold(v) {
+    setState(() {
+      _threshold = v.toInt();
+      if (_threshold > _participants)
+        _threshold = _participants;
+    });
+  }
+
+  _scan() async {
+    final s = S.of(context);
+    final txSummaryString = await scanCode(context);
+    if (txSummaryString == null) return;
+    final txParts = txSummaryString.split('|');
+    _aggregatorUrl = txParts[0];
+    _address = txParts[1];
+    _amount = int.parse(txParts[2]);
+    final amount = amountToString(_amount);
+    final approved = await showMessageBox(
+        context,
+        s.confirmSigning,
+        s.confirmSignATransactionToAddressFor(_address, amount),
+        s.approve);
+    if (approved) await sign();
+  }
+
+  _split() async {
+    final s = S.of(context);
+    final shareString = WarpApi.splitAccount(_threshold, _participants, accountManager.active.id);
+    Navigator.of(context).pushNamed('/multisig_shares', arguments: shareString);
+  }
+
+  sign() async {
+    final info = NetworkInfo();
+    final wifiIP = await info.getWifiIP();
+    final myUrl = 'http://$wifiIP:$SIGNER_PORT';
+
+    final share = accountManager.active.share;
+    if (share != null && _aggregatorUrl != null) {
+      final errorCode = await WarpApi.runMultiSigner(
+          share.value, _aggregatorUrl, myUrl, SIGNER_PORT);
+      String? msg;
+      switch (errorCode) {
+        case 0:
+          msg = "Transaction signed";
+          break;
+        case 1:
+          msg = "Duplicate signer";
+          break;
+      }
+      if (msg != null) {
+        final snackBar = SnackBar(content: Text(msg));
+        rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar);
+      }
+    }
+    Navigator.of(context).pop();
+  }
+}
+
+class MultisigSharesPage extends StatelessWidget {
+  final String shareString;
+  MultisigSharesPage(this.shareString);
+
+  @override
+  Widget build(BuildContext context) {
+    final shares = shareString.split('|').asMap().entries.toList();
+    final account = accountManager.active;
+    return Scaffold(
+      appBar: AppBar(title: Text(S.of(context).multisigShares)),
+      body: ListView(
+        padding: EdgeInsets.all(8),
+        children: ListTile.divideTiles(context: context, tiles: [
+          for (var share in shares)
+            ListTile(title: Text(share.value), trailing: Icon(MdiIcons.qrcode),
+            onTap: () => showQR(context, share.value, "${account.name} - ms ${share.key+1}/${shares.length}"))
+      ]).toList())
+    );
+  }
+}
diff --git a/lib/note.dart b/lib/note.dart
index 81619d5..66f6262 100644
--- a/lib/note.dart
+++ b/lib/note.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
-import 'package:intl/intl.dart';
+import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
 
 import 'main.dart';
 import 'store.dart';
@@ -25,6 +25,7 @@ class _NoteState extends State<NoteWidget> with AutomaticKeepAliveClientMixin {
         padding: EdgeInsets.all(8),
         scrollDirection: Axis.vertical,
         child: Observer(builder: (context) {
+          accountManager.sortedNotes;
           return PaginatedDataTable(
             columns: [
               DataColumn(
@@ -58,6 +59,9 @@ class _NoteState extends State<NoteWidget> with AutomaticKeepAliveClientMixin {
             ],
             header: Text(S.of(context).selectNotesToExcludeFromPayments,
                 style: Theme.of(context).textTheme.bodyText2),
+            actions: [
+              IconButton(onPressed: _selectInverse, icon: Icon(MdiIcons.selectInverse)),
+            ],
             columnSpacing: 16,
             showCheckboxColumn: false,
             availableRowsPerPage: [5, 10, 25, 100],
@@ -74,6 +78,10 @@ class _NoteState extends State<NoteWidget> with AutomaticKeepAliveClientMixin {
   _onRowSelected(Note note) {
     accountManager.excludeNote(note);
   }
+
+  _selectInverse() {
+    accountManager.invertExcludedNotes();
+  }
 }
 
 class NotesDataSource extends DataTableSource {
diff --git a/lib/restore.dart b/lib/restore.dart
index f7649ec..18fe9b2 100644
--- a/lib/restore.dart
+++ b/lib/restore.dart
@@ -16,25 +16,30 @@ class _RestorePageState extends State<RestorePage> {
   final _formKey = GlobalKey<FormState>();
   final _keyController = TextEditingController();
   final _nameController = TextEditingController();
+  final _shareController = TextEditingController();
   var _validKey = true;
+  var _isVK = false;
 
   @override
   Widget build(BuildContext context) {
+    final s = S.of(context);
     return Scaffold(
         appBar: AppBar(
           title: Text("${coin.symbol} Wallet"),
         ),
-        body: Form(
+        body: GestureDetector(
+          onTap: () { FocusScope.of(context).unfocus(); },
+          child: Form(
             key: _formKey,
             child: Padding(
                 padding: EdgeInsets.all(16),
                 child: Column(children: [
                   TextFormField(
-                    decoration: InputDecoration(labelText: S.of(context).accountName),
+                    decoration: InputDecoration(labelText: s.accountName),
                     controller: _nameController,
                     validator: (String? name) {
                       if (name == null || name.isEmpty)
-                        return S.of(context).accountNameIsRequired;
+                        return s.accountNameIsRequired;
                       return null;
                     },
                   ),
@@ -43,9 +48,9 @@ class _RestorePageState extends State<RestorePage> {
                       Expanded(
                           child: TextFormField(
                         decoration: InputDecoration(
-                            labelText: S.of(context).key,
+                            labelText: s.key,
                             hintText:
-                                S.of(context).enterSeed),
+                                s.enterSeed),
                         minLines: 4,
                         maxLines: 4,
                         controller: _keyController,
@@ -55,12 +60,29 @@ class _RestorePageState extends State<RestorePage> {
                           icon: new Icon(MdiIcons.qrcodeScan), onPressed: _onScan)
                     ],
                   ),
+                  if (_isVK) Row(
+                    children: [
+                      Expanded(
+                          child: TextFormField(
+                            decoration: InputDecoration(
+                                labelText: s.secretShare,
+                                hintText: s.enterSecretShareIfAccountIsMultisignature),
+                            minLines: 4,
+                            maxLines: 4,
+                            controller: _shareController,
+                            // TODO: Check share
+                          )),
+                      IconButton(
+                          icon: new Icon(MdiIcons.qrcodeScan), onPressed: _onScanShare)
+                    ],
+                  ),
                   ButtonBar(children:
-                  confirmButtons(context, _validKey ? _onOK : null, okLabel: S.of(context).add, okIcon: Icon(Icons.add)))
-                ]))));
+                  confirmButtons(context, _validKey ? _onOK : null, okLabel: s.add, okIcon: Icon(Icons.add)))
+                ])))));
   }
 
   _onOK() async {
+    final s = S.of(context);
     if (_formKey.currentState!.validate()) {
       final account =
           WarpApi.newAccount(_nameController.text, _keyController.text);
@@ -69,18 +91,20 @@ class _RestorePageState extends State<RestorePage> {
             context: context,
             barrierDismissible: false,
             builder: (context) => AlertDialog(
-                title: Text(S.of(context).duplicateAccount),
-                content: Text(S.of(context).thisAccountAlreadyExists),
+                title: Text(s.duplicateAccount),
+                content: Text(s.thisAccountAlreadyExists),
                 actions: [
                   ElevatedButton.icon(
                       onPressed: () {
                         Navigator.of(context).pop();
                       },
-                      label: Text(S.of(context).ok),
+                      label: Text(s.ok),
                       icon: Icon(Icons.done))
                 ]));
       }
       else {
+        if (_shareController.text.isNotEmpty)
+          accountManager.storeShareSecret(account, _shareController.text);
         await accountManager.refresh();
         if (_keyController.text != "") {
           syncStatus.setAccountRestored(true);
@@ -97,7 +121,9 @@ class _RestorePageState extends State<RestorePage> {
 
   _checkKey(key) {
     setState(() {
-      _validKey = key == "" || WarpApi.validKey(key);
+      final keyType = WarpApi.validKey(key);
+      _validKey = key == "" || keyType >= 0;
+      _isVK = keyType == 2;
     });
   }
 
@@ -106,7 +132,15 @@ class _RestorePageState extends State<RestorePage> {
     if (key != null)
       setState(() {
         _keyController.text = key;
-        _validKey = key == "" || WarpApi.validKey(key);
+        _checkKey(key);
+      });
+  }
+
+  void _onScanShare() async {
+    final key = await scanCode(context);
+    if (key != null)
+      setState(() {
+        _shareController.text = key;
       });
   }
 }
diff --git a/lib/send.dart b/lib/send.dart
index 19fd2f7..93b3aac 100644
--- a/lib/send.dart
+++ b/lib/send.dart
@@ -7,6 +7,7 @@ import 'package:flutter/material.dart';
 import 'package:mobx/mobx.dart';
 import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
 import 'package:warp/dualmoneyinput.dart';
+import 'package:warp_api/types.dart';
 import 'package:warp_api/warp_api.dart';
 import 'package:decimal/decimal.dart';
 import 'package:path_provider/path_provider.dart';
@@ -25,6 +26,8 @@ class SendPage extends StatefulWidget {
 
   @override
   SendState createState() => SendState();
+
+  bool get isMulti => args?.isMulti ?? false;
 }
 
 class SendState extends State<SendPage> {
@@ -46,11 +49,15 @@ class SendState extends State<SendPage> {
   var _useMillis = true;
   var _useTransparent = settings.shieldBalance;
   ReactionDisposer? _newBlockAutorunDispose;
+  final _fee = DEFAULT_FEE;
+  var _usedBalance = 0;
 
   @override
   initState() {
     if (widget.args?.contact != null)
       _addressController.text = widget.args!.contact!.address;
+    final recipients = widget.args?.recipients ?? [];
+    _usedBalance = recipients.fold(0, (acc, r) => acc + r.amount);
 
     final uri = widget.args?.uri;
     if (uri != null)
@@ -67,7 +74,8 @@ class SendState extends State<SendPage> {
       final excludedBalance = await accountManager.getExcludedBalance();
       final underConfirmedBalance =
           await accountManager.getUnderConfirmedBalance();
-      final unconfirmedSpentBalance = await accountManager.getUnconfirmedSpentBalance();
+      final unconfirmedSpentBalance =
+          await accountManager.getUnconfirmedSpentBalance();
       final unconfirmedBalance = accountManager.unconfirmedBalance;
       setState(() {
         _sBalance = sBalance;
@@ -129,9 +137,13 @@ class SendState extends State<SendPage> {
                             icon: new Icon(MdiIcons.qrcodeScan),
                             onPressed: _onScan)
                       ]),
-                      DualMoneyInputWidget(key: _amountKey, child: TextButton(child: Text(s.max), onPressed: _onMax), spendable: spendable),
-                      BalanceTable(_sBalance, _tBalance, _useTransparent, _excludedBalance,
-                          _underConfirmedBalance, change),
+                      DualMoneyInputWidget(
+                          key: _amountKey,
+                          child:
+                              TextButton(child: Text(s.max), onPressed: _onMax),
+                          spendable: spendable),
+                      BalanceTable(_sBalance, _tBalance, _useTransparent,
+                          _excludedBalance, _underConfirmedBalance, change, _usedBalance, _fee),
                       ExpansionPanelList(
                           expansionCallback: (_, isExpanded) {
                             setState(() {
@@ -157,7 +169,7 @@ class SendState extends State<SendPage> {
                                     title: Text(s.roundToMillis),
                                     value: _useMillis,
                                     onChanged: _setUseMillis),
-                                if (accountManager.canPay)
+                                if (accountManager.canPay && !widget.isMulti)
                                   CheckboxListTile(
                                     title: Text(s.useTransparentBalance),
                                     value: _useTransparent,
@@ -169,7 +181,9 @@ class SendState extends State<SendPage> {
                                       labelText: s.maxAmountPerNote),
                                   keyboardType: TextInputType.number,
                                   controller: _maxAmountController,
-                                  inputFormatters: [makeInputFormatter(amountInput?.useMillis)],
+                                  inputFormatters: [
+                                    makeInputFormatter(amountInput?.useMillis)
+                                  ],
                                   validator: _checkMaxAmountPerNote,
                                   onSaved: _onSavedMaxAmountPerNote,
                                 )),
@@ -180,7 +194,8 @@ class SendState extends State<SendPage> {
                       Padding(padding: EdgeInsets.all(8)),
                       ButtonBar(
                           children: confirmButtons(context, _onSend,
-                              okLabel: s.send, okIcon: Icon(MdiIcons.send)))
+                              okLabel: widget.isMulti ? s.add : s.send,
+                              okIcon: Icon(MdiIcons.send)))
                     ])))));
   }
 
@@ -276,68 +291,52 @@ class SendState extends State<SendPage> {
       form.save();
       final amount = amountInput?.amount ?? 0;
       final aZEC = amountToString(amount);
-      final approved = await showDialog(
-          context: context,
-          barrierDismissible: false,
-          builder: (BuildContext context) => AlertDialog(
-              title: Text(s.pleaseConfirm),
-              content: SingleChildScrollView(
-                  child: Text(s.sendingAzecCointickerToAddress(
-                      aZEC, coin.ticker, _address))),
-              actions: confirmButtons(
-                  context, () => Navigator.of(context).pop(true),
-                  okLabel: s.approve, cancelValue: false)));
+      final approved = widget.isMulti ||
+          await showDialog(
+              context: context,
+              barrierDismissible: false,
+              builder: (BuildContext context) => AlertDialog(
+                  title: Text(s.pleaseConfirm),
+                  content: SingleChildScrollView(
+                      child: Text(s.sendingAzecCointickerToAddress(
+                          aZEC, coin.ticker, _address))),
+                  actions: confirmButtons(
+                      context, () => Navigator.of(context).pop(true),
+                      okLabel: s.approve, cancelValue: false)));
       if (approved) {
-        Navigator.of(context).pop();
-
-        final snackBar1 = SnackBar(content: Text(s.preparingTransaction));
-        rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar1);
-
         int maxAmountPerNote = (_maxAmountPerNote * ZECUNIT_DECIMAL).toInt();
         final memo = _memoController.text;
         final address = unwrapUA(_address);
+        final recipient = Recipient(
+          address,
+          amount,
+          memo,
+          maxAmountPerNote,
+        );
 
-        if (accountManager.canPay) {
-          if (settings.protectSend &&
-              !await authenticate(context, s.pleaseAuthenticateToSend)) return;
-          final tx = await compute(
-              sendPayment,
-              PaymentParams(
-                  accountManager.active.id,
-                  address,
-                  amount,
-                  memo,
-                  maxAmountPerNote,
-                  settings.anchorOffset,
-                  _useTransparent,
-                  progressPort.sendPort));
-
-          final snackBar2 = SnackBar(content: Text("${s.txId}: $tx"));
-          rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar2);
-          await accountManager.fetchAccountData(true);
-        } else {
-          Directory tempDir = await getTemporaryDirectory();
-          String filename = "${tempDir.path}/tx.json";
-
-          final msg = WarpApi.prepareTx(accountManager.active.id, address,
-              amountInput?.amount ?? 0, memo, maxAmountPerNote, settings.anchorOffset, filename);
-
-          Share.shareFiles([filename], subject: s.unsignedTransactionFile);
-
-          final snackBar2 = SnackBar(content: Text(msg));
-          rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar2);
-        }
+        if (!widget.isMulti)
+          // send closes the page
+          await send(context, [recipient], _useTransparent);
+        else
+          Navigator.of(context).pop(recipient);
       }
     }
   }
 
+
   int amountInZAT(Decimal v) => (v * ZECUNIT_DECIMAL).toInt();
 
   String amountFromZAT(int v) =>
       (Decimal.fromInt(v) / ZECUNIT_DECIMAL).toString();
 
-  get spendable => math.max((_useTransparent ? _tBalance : 0) +
-      _sBalance - _excludedBalance - _underConfirmedBalance - DEFAULT_FEE, 0);
+  get spendable => math.max(
+      (_useTransparent ? _tBalance : 0) +
+          _sBalance -
+          _excludedBalance -
+          _underConfirmedBalance -
+          _usedBalance -
+          _fee,
+      0);
 
   get change => _unconfirmedSpentBalance + _unconfirmedBalance;
 
@@ -351,9 +350,11 @@ class BalanceTable extends StatelessWidget {
   final int excludedBalance;
   final int underConfirmedBalance;
   final int change;
+  final int used;
+  final int fee;
 
-  BalanceTable(this.sBalance, this.tBalance, this.useTBalance, this.excludedBalance,
-      this.underConfirmedBalance, this.change);
+  BalanceTable(this.sBalance, this.tBalance, this.useTBalance,
+      this.excludedBalance, this.underConfirmedBalance, this.change, this.used, this.fee);
 
   @override
   Widget build(BuildContext context) {
@@ -371,23 +372,31 @@ class BalanceTable extends StatelessWidget {
     ]));
 
     return Container(
-      decoration: BoxDecoration(border: Border.all(color: theme.dividerColor, width: 1),
-      borderRadius: BorderRadius.circular(8)),
+        decoration: BoxDecoration(
+            border: Border.all(color: theme.dividerColor, width: 1),
+            borderRadius: BorderRadius.circular(8)),
         child: Column(crossAxisAlignment: CrossAxisAlignment.center, children: [
-      BalanceRow(Text(S.of(context).totalBalance), totalBalance),
-      BalanceRow(Text(S.of(context).underConfirmed), -underConfirmed),
-      BalanceRow(Text(S.of(context).excludedNotes), -excludedBalance),
-      if (!useTBalance) BalanceRow(tBalanceLabel, -tBalance),
-      BalanceRow(Text(S.of(context).spendableBalance), spendable,
-          style: TextStyle(color: Theme.of(context).primaryColor)),
-    ]));
+          BalanceRow(Text(S.of(context).totalBalance), totalBalance),
+          BalanceRow(Text(S.of(context).underConfirmed), -underConfirmed),
+          BalanceRow(Text(S.of(context).excludedNotes), -excludedBalance),
+          if (!useTBalance) BalanceRow(tBalanceLabel, -tBalance),
+          BalanceRow(Text(S.of(context).spendableBalance), spendable,
+              style: TextStyle(color: Theme.of(context).primaryColor)),
+        ]));
   }
 
-  get totalBalance => sBalance + tBalance + change;
+  get totalBalance => sBalance + tBalance + change - used - fee;
+
   get underConfirmed => -underConfirmedBalance - change;
 
   get spendable => math.max(
-      sBalance + (useTBalance ? tBalance : 0) - excludedBalance - underConfirmedBalance - DEFAULT_FEE, 0);
+      sBalance +
+          (useTBalance ? tBalance : 0) -
+          excludedBalance -
+          underConfirmedBalance -
+          used -
+          fee,
+      0);
 }
 
 class BalanceRow extends StatelessWidget {
@@ -402,23 +411,60 @@ class BalanceRow extends StatelessWidget {
     return ListTile(
         title: label,
         trailing: Text(amountToString(amount),
-            style: TextStyle(fontFeatures: [FontFeature.tabularFigures()]).merge(style)),
+            style: TextStyle(fontFeatures: [FontFeature.tabularFigures()])
+                .merge(style)),
         visualDensity: VisualDensity(horizontal: 0, vertical: -4));
   }
 }
 
-sendPayment(PaymentParams param) async {
-  param.port.send(0);
-  final tx = await WarpApi.sendPayment(
-      param.account,
-      param.address,
-      param.amount,
-      param.memo,
-      param.maxAmountPerNote,
-      param.anchorOffset,
-      param.useTransparent, (percent) {
-    param.port.send(percent);
-  });
-  param.port.send(0);
-  return tx;
+Future<void> send(BuildContext context, List<Recipient> recipients, bool useTransparent) async {
+  final s = S.of(context);
+
+  String address = "";
+  int amount = 0;
+  for (var r in recipients) {
+    amount += r.amount;
+    if (address.isEmpty)
+      address = r.address;
+    else
+      address = s.multipleAddresses;
+  }
+
+  final snackBar1 = SnackBar(content: Text(s.preparingTransaction));
+  rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar1);
+
+  if (accountManager.canPay) {
+    if (settings.protectSend &&
+        !await authenticate(context, s.pleaseAuthenticateToSend)) return;
+
+    Navigator.of(context).pop();
+    final tx = await WarpApi.sendPayment(accountManager.active.id, recipients,
+        useTransparent, settings.anchorOffset, (progress) {
+          progressPort.sendPort.send(progress);
+        });
+    progressPort.sendPort.send(0);
+
+    final snackBar2 = SnackBar(content: Text("${s.txId}: $tx"));
+    rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar2);
+    await accountManager.fetchAccountData(true);
+  } else {
+    Directory tempDir = await getTemporaryDirectory();
+    String filename = "${tempDir.path}/tx.json";
+
+    final txjson = WarpApi.prepareTx(accountManager.active.id, recipients,
+        useTransparent, settings.anchorOffset, filename);
+
+    if (coin.supportsMultisig && accountManager.active.share != null) {
+      final txSummary = TxSummary(address, amount, txjson);
+      Navigator.of(context).pushReplacementNamed('/multisign', arguments: txSummary);
+    } else {
+      final file = File(filename);
+      await file.writeAsString(txjson);
+      Share.shareFiles([filename], subject: s.unsignedTransactionFile);
+
+      final snackBar2 = SnackBar(content: Text(s.fileSaved));
+      rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar2);
+      Navigator.of(context).pop();
+    }
+  }
 }
diff --git a/lib/settings.dart b/lib/settings.dart
index 03842c1..6b9ccd5 100644
--- a/lib/settings.dart
+++ b/lib/settings.dart
@@ -237,7 +237,6 @@ class SettingsState extends State<SettingsPage> {
   _onSave() async {
     final form = _settingsFormKey.currentState!;
     if (form.validate()) {
-      print(_needAuth);
       if (_needAuth && !await authenticate(context, S.of(context).protectSendSettingChanged)) return;
       form.save();
       Navigator.of(context).pop();
diff --git a/lib/store.dart b/lib/store.dart
index 75847d1..0b7c32f 100644
--- a/lib/store.dart
+++ b/lib/store.dart
@@ -10,6 +10,7 @@ import 'package:mobx/mobx.dart';
 import 'package:path/path.dart';
 import 'package:sqflite/sqflite.dart';
 import 'package:warp_api/warp_api.dart';
+import 'package:warp_api/types.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:http/http.dart' as http;
 import 'dart:convert' as convert;
@@ -111,9 +112,11 @@ abstract class _Settings with Store {
     protectSend = prefs.getBool('protect_send') ?? false;
 
     primaryColorValue = prefs.getInt('primary') ?? Colors.blue.value;
-    primaryVariantColorValue = prefs.getInt('primary.variant') ?? Colors.blueAccent.value;
+    primaryVariantColorValue =
+        prefs.getInt('primary.variant') ?? Colors.blueAccent.value;
     secondaryColorValue = prefs.getInt('secondary') ?? Colors.green.value;
-    secondaryVariantColorValue = prefs.getInt('secondary.variant') ?? Colors.greenAccent.value;
+    secondaryVariantColorValue =
+        prefs.getInt('secondary.variant') ?? Colors.greenAccent.value;
 
     _updateThemeData();
     Future.microtask(_loadCurrencies); // lazily
@@ -168,28 +171,25 @@ abstract class _Settings with Store {
 
   void _updateThemeData() {
     if (theme == 'custom') {
-      final colors = FlexSchemeColor(primary: Color(primaryColorValue),
+      final colors = FlexSchemeColor(
+          primary: Color(primaryColorValue),
           primaryVariant: Color(primaryVariantColorValue),
           secondary: Color(secondaryColorValue),
           secondaryVariant: Color(secondaryVariantColorValue));
-      final scheme = FlexSchemeData(name: 'custom',
+      final scheme = FlexSchemeData(
+          name: 'custom',
           description: 'Custom Theme',
           light: colors,
           dark: colors);
       switch (themeBrightness) {
         case 'light':
-          themeData = FlexColorScheme
-              .light(colors: scheme.light)
-              .toTheme;
+          themeData = FlexColorScheme.light(colors: scheme.light).toTheme;
           break;
         case 'dark':
-          themeData = FlexColorScheme
-              .dark(colors: scheme.dark)
-              .toTheme;
+          themeData = FlexColorScheme.dark(colors: scheme.dark).toTheme;
           break;
       }
-    }
-    else {
+    } else {
       FlexScheme scheme;
       switch (theme) {
         case 'gold':
@@ -209,21 +209,18 @@ abstract class _Settings with Store {
       }
       switch (themeBrightness) {
         case 'light':
-          themeData = FlexColorScheme
-              .light(scheme: scheme)
-              .toTheme;
+          themeData = FlexColorScheme.light(scheme: scheme).toTheme;
           break;
         case 'dark':
-          themeData = FlexColorScheme
-              .dark(scheme: scheme)
-              .toTheme;
+          themeData = FlexColorScheme.dark(scheme: scheme).toTheme;
           break;
       }
     }
   }
 
   @action
-  Future<void> updateCustomThemeColors(Color primary, Color primaryVariant, Color secondary, Color secondaryVariant) async {
+  Future<void> updateCustomThemeColors(Color primary, Color primaryVariant,
+      Color secondary, Color secondaryVariant) async {
     final prefs = await SharedPreferences.getInstance();
     primaryColorValue = primary.value;
     primaryVariantColorValue = primaryVariant.value;
@@ -347,7 +344,7 @@ abstract class _AccountManager with Store {
   late Database db;
 
   @observable
-  Account active = Account(0, "", "", 0);
+  Account active = Account(0, "", "", 0, null);
 
   @observable
   bool canPay = false;
@@ -454,10 +451,12 @@ abstract class _AccountManager with Store {
 
   Future<Backup> getBackup(int account) async {
     final List<Map> res = await db.rawQuery(
-        "SELECT seed, sk, ivk FROM accounts WHERE id_account = ?1",
+        "SELECT name, seed, sk, ivk FROM accounts WHERE id_account = ?1",
         [account]);
     if (res.isEmpty) throw Exception("Account N/A");
+    final share = await getShareInfo(account);
     final row = res[0];
+    final name = row['name'];
     final seed = row['seed'];
     final sk = row['sk'];
     final ivk = row['ivk'];
@@ -467,7 +466,7 @@ abstract class _AccountManager with Store {
     else if (sk != null)
       type = 1;
     else if (ivk != null) type = 2;
-    return Backup(type, seed, sk, ivk);
+    return Backup(type, name, seed, sk, ivk, share);
   }
 
   Future<int> _getBalance(int accountId) async {
@@ -480,29 +479,33 @@ abstract class _AccountManager with Store {
 
   Future<int> getShieldedBalance() async {
     return Sqflite.firstIntValue(await db.rawQuery(
-        "SELECT SUM(value) AS value FROM received_notes WHERE account = ?1 AND spent IS NULL",
-        [active.id])) ?? 0;
+            "SELECT SUM(value) AS value FROM received_notes WHERE account = ?1 AND spent IS NULL",
+            [active.id])) ??
+        0;
   }
 
   Future<int> getUnconfirmedSpentBalance() async {
     return Sqflite.firstIntValue(await db.rawQuery(
-        "SELECT SUM(value) AS value FROM received_notes WHERE account = ?1 AND spent = 0",
-        [active.id])) ?? 0;
+            "SELECT SUM(value) AS value FROM received_notes WHERE account = ?1 AND spent = 0",
+            [active.id])) ??
+        0;
   }
 
   Future<int> getUnderConfirmedBalance() async {
     final height = syncStatus.latestHeight - settings.anchorOffset;
     return Sqflite.firstIntValue(await db.rawQuery(
-        "SELECT SUM(value) AS value FROM received_notes WHERE account = ?1 AND height > ?2",
-        [active.id, height])) ?? 0;
+            "SELECT SUM(value) AS value FROM received_notes WHERE account = ?1 AND height > ?2",
+            [active.id, height])) ??
+        0;
   }
 
   Future<int> getExcludedBalance() async {
     final height = syncStatus.latestHeight - settings.anchorOffset;
     final amount = Sqflite.firstIntValue(await db.rawQuery(
-        "SELECT SUM(value) FROM received_notes WHERE account = ?1 AND spent IS NULL "
-        "AND height <= ?2 AND excluded",
-        [active.id, height])) ?? 0;
+            "SELECT SUM(value) FROM received_notes WHERE account = ?1 AND spent IS NULL "
+            "AND height <= ?2 AND excluded",
+            [active.id, height])) ??
+        0;
     return amount;
   }
 
@@ -518,28 +521,45 @@ abstract class _AccountManager with Store {
 
   Future<List<Account>> _list() async {
     final List<Map> res = await db.rawQuery(
-        "WITH notes AS (SELECT a.id_account, a.name, a.address, CASE WHEN r.spent IS NULL THEN r.value ELSE 0 END AS nv FROM accounts a LEFT JOIN received_notes r ON a.id_account = r.account) "
-        "SELECT id_account, name, address, COALESCE(sum(nv), 0) AS balance FROM notes GROUP by id_account",
+        "WITH notes AS (SELECT a.id_account, a.name, a.address, CASE WHEN r.spent IS NULL THEN r.value ELSE 0 END AS nv FROM accounts a LEFT JOIN received_notes r ON a.id_account = r.account),"
+        "accounts2 AS (SELECT id_account, name, address, COALESCE(sum(nv), 0) AS balance FROM notes GROUP by id_account) "
+        "SELECT a.id_account, a.name, a.address, a.balance, ss.idx, ss.secret, ss.participants, ss.threshold FROM accounts2 a LEFT JOIN secret_shares ss ON a.id_account = ss.account",
         []);
-    return res
-        .map((r) =>
-            Account(r['id_account'], r['name'], r['address'], r['balance']))
-        .toList();
+    return res.map((r) {
+      final shareInfo = r['secret'] != null
+          ? ShareInfo(r['idx'], r['threshold'], r['participants'], r['secret'])
+          : null;
+      return Account(
+          r['id_account'], r['name'], r['address'], r['balance'], shareInfo);
+    }).toList();
   }
 
   @action
   Future<void> delete(int account) async {
     WarpApi.deleteAccount(account);
-    if (account == active.id)
-      resetToDefaultAccount();
+    if (account == active.id) resetToDefaultAccount();
   }
 
   @action
-  Future<void> changeAccountName(String name) async {
+  Future<void> changeAccountName(Account account, String name) async {
     await db.execute("UPDATE accounts SET name = ?2 WHERE id_account = ?1",
-        [active.id, name]);
+        [account.id, name]);
     await refresh();
-    await setActiveAccountId(active.id);
+  }
+
+  @action
+  void storeShareSecret(int account, String secretKey) {
+    WarpApi.storeShareSecret(account, secretKey);
+  }
+
+  Future<ShareInfo?> getShareInfo(int accountId) async {
+    final List<Map> res = await db.rawQuery(
+        "SELECT idx, threshold, participants, secret FROM secret_shares WHERE account = ?1",
+        [accountId]);
+    if (res.isEmpty) return null;
+    final row = res[0];
+    return ShareInfo(
+        row['idx'], row['threshold'], row['participants'], row['secret']);
   }
 
   @action
@@ -617,8 +637,16 @@ abstract class _AccountManager with Store {
       final shortTxid = fullTxId.substring(0, 8);
       final timestamp = txDateFormat
           .format(DateTime.fromMillisecondsSinceEpoch(row['timestamp'] * 1000));
-      return Tx(row['id_tx'], row['height'], timestamp, shortTxid, fullTxId,
-          row['value'] / ZECUNIT, row['address'] ?? "", row['name'], row['memo'] ?? "");
+      return Tx(
+          row['id_tx'],
+          row['height'],
+          timestamp,
+          shortTxid,
+          fullTxId,
+          row['value'] / ZECUNIT,
+          row['address'] ?? "",
+          row['name'],
+          row['memo'] ?? "");
     }).toList();
 
     dataEpoch = DateTime.now().millisecondsSinceEpoch;
@@ -629,36 +657,45 @@ abstract class _AccountManager with Store {
   List<Note> get sortedNotes {
     var notes2 = [...notes];
     switch (noteSortConfig.field) {
-      case "time": return _sort(notes2, (Note note) => note.height, noteSortConfig.order);
-      case "amount": return _sort(notes2, (Note note) => note.value, noteSortConfig.order);
+      case "time":
+        return _sort(notes2, (Note note) => note.height, noteSortConfig.order);
+      case "amount":
+        return _sort(notes2, (Note note) => note.value, noteSortConfig.order);
     }
     return notes2;
   }
 
   @action
-  Future<void> sortNotes(String field) async {
-    noteSortConfig.sortOn(field);
+  void sortNotes(String field) {
+    noteSortConfig = noteSortConfig.sortOn(field);
   }
 
   @computed
   List<Tx> get sortedTxs {
     var txs2 = [...txs];
     switch (txSortConfig.field) {
-      case "time": return _sort(txs2, (Tx tx) => tx.height, txSortConfig.order);
-      case "amount": return _sort(txs2, (Tx tx) => tx.value, txSortConfig.order);
-      case "txid": return _sort(txs2, (Tx tx) => tx.txid, txSortConfig.order);
-      case "address": return _sort(txs2, (Tx tx) => tx.contact ?? tx.address, txSortConfig.order);
-      case "memo": return _sort(txs2, (Tx tx) => tx.memo, txSortConfig.order);
+      case "time":
+        return _sort(txs2, (Tx tx) => tx.height, txSortConfig.order);
+      case "amount":
+        return _sort(txs2, (Tx tx) => tx.value, txSortConfig.order);
+      case "txid":
+        return _sort(txs2, (Tx tx) => tx.txid, txSortConfig.order);
+      case "address":
+        return _sort(
+            txs2, (Tx tx) => tx.contact ?? tx.address, txSortConfig.order);
+      case "memo":
+        return _sort(txs2, (Tx tx) => tx.memo, txSortConfig.order);
     }
     return txs2;
   }
 
   @action
-  Future<void> sortTx(String field) async {
-    txSortConfig.sortOn(field);
+  void sortTx(String field) {
+    txSortConfig = txSortConfig.sortOn(field);
   }
 
-  List<C>  _sort<C extends HasHeight, T extends Comparable>(List<C> txs, T Function(C) project, SortOrder order) {
+  List<C> _sort<C extends HasHeight, T extends Comparable>(
+      List<C> txs, T Function(C) project, SortOrder order) {
     switch (order) {
       case SortOrder.Ascending:
         txs.sort((a, b) => project(a).compareTo(project(b)));
@@ -711,7 +748,8 @@ abstract class _AccountManager with Store {
       _accountBalances.add(ab);
       b -= value;
     }
-    _accountBalances.add(AccountBalance(DateTime.fromMillisecondsSinceEpoch(range.start), b / ZECUNIT));
+    _accountBalances.add(AccountBalance(
+        DateTime.fromMillisecondsSinceEpoch(range.start), b / ZECUNIT));
     _accountBalances = _accountBalances.reversed.toList();
     accountBalances = sampleDaily<AccountBalance, double, double>(
         _accountBalances,
@@ -814,7 +852,7 @@ abstract class _AccountManager with Store {
       var _pnls = [...pnls.reversed];
       return _pnls;
     }
-    return pnls; 
+    return pnls;
   }
 
   @action
@@ -832,6 +870,14 @@ abstract class _AccountManager with Store {
         [note.id, note.excluded]);
   }
 
+  @action
+  Future<void> invertExcludedNotes() async {
+    await db.execute(
+        "UPDATE received_notes SET excluded = NOT(COALESCE(excluded, 0)) WHERE account = ?1",
+        [active.id]);
+    notes = notes.map((n) => n.invertExcluded).toList();
+  }
+
   @action
   Future<void> updateTBalance() async {
     _updateTBalance(active.id);
@@ -843,7 +889,8 @@ abstract class _AccountManager with Store {
   }
 
   void autoshield() {
-    if (settings.autoShieldThreshold != 0.0 && tbalance / ZECUNIT >= settings.autoShieldThreshold) {
+    if (settings.autoShieldThreshold != 0.0 &&
+        tbalance / ZECUNIT >= settings.autoShieldThreshold) {
       WarpApi.shieldTAddr(active.id);
     }
   }
@@ -869,8 +916,9 @@ class Account {
   final String name;
   final String address;
   final int balance;
+  final ShareInfo? share;
 
-  Account(this.id, this.name, this.address, this.balance);
+  Account(this.id, this.name, this.address, this.balance, this.share);
 }
 
 class PriceStore = _PriceStore with _$PriceStore;
@@ -941,17 +989,15 @@ abstract class _SyncStatus with Store {
   Future<void> sync(BuildContext context) async {
     eta.reset();
     syncing = true;
-    final snackBar =
-    SnackBar(content: Text(S
-        .of(context)
-        .rescanRequested));
+    final snackBar = SnackBar(content: Text(S.of(context).rescanRequested));
     rootScaffoldMessengerKey.currentState?.showSnackBar(snackBar);
     setSyncHeight(0);
     WarpApi.rewindToHeight(0);
     WarpApi.truncateData();
     contacts.markContactsDirty(false);
     await syncStatus.update();
-    final params = SyncParams(settings.getTx, settings.anchorOffset, syncPort.sendPort);
+    final params =
+        SyncParams(settings.getTx, settings.anchorOffset, syncPort.sendPort);
     await compute(WarpApi.warpSync, params);
     syncing = false;
     eta.reset();
@@ -1017,12 +1063,16 @@ abstract class _ETAStore with Store {
     final p = prev;
     final c = current;
     if (p == null || c == null) return "";
-    if (c.timestamp.millisecondsSinceEpoch == p.timestamp.millisecondsSinceEpoch) return "";
-    final speed = (c.height - p.height) / (c.timestamp.millisecondsSinceEpoch - p.timestamp.millisecondsSinceEpoch);
+    if (c.timestamp.millisecondsSinceEpoch ==
+        p.timestamp.millisecondsSinceEpoch) return "";
+    final speed = (c.height - p.height) /
+        (c.timestamp.millisecondsSinceEpoch -
+            p.timestamp.millisecondsSinceEpoch);
     if (speed == 0) return "";
     final eta = (syncStatus.latestHeight - c.height) / speed;
     if (eta <= 0) return "";
-    final duration = Duration(milliseconds: eta.floor()).toString().split('.')[0];
+    final duration =
+        Duration(milliseconds: eta.floor()).toString().split('.')[0];
     return "(ETA: $duration)";
   }
 }
@@ -1109,6 +1159,9 @@ class Note extends HasHeight {
 
   Note(this.id, this.height, this.timestamp, this.value, this.excluded,
       this.spent);
+
+  Note get invertExcluded =>
+      Note(id, height, timestamp, value, !excluded, spent);
 }
 
 class Tx extends HasHeight {
@@ -1142,12 +1195,14 @@ class AccountBalance {
 }
 
 class Backup {
-  int type;
+  final int type;
+  final String name;
   final String? seed;
   final String? sk;
   final String ivk;
+  final ShareInfo? share;
 
-  Backup(this.type, this.seed, this.sk, this.ivk);
+  Backup(this.type, this.name, this.seed, this.sk, this.ivk, this.share);
 
   String value() {
     switch (type) {
@@ -1181,20 +1236,6 @@ enum SortOrder {
 SortOrder nextSortOrder(SortOrder order) =>
     SortOrder.values[(order.index + 1) % 3];
 
-@JsonSerializable()
-class Recipient {
-  final String address;
-  final int amount;
-  final String memo;
-
-  Recipient(this.address, this.amount, this.memo);
-
-  factory Recipient.fromJson(Map<String, dynamic> json) =>
-      _$RecipientFromJson(json);
-
-  Map<String, dynamic> toJson() => _$RecipientToJson(this);
-}
-
 class PnL {
   final DateTime timestamp;
   final double price;
@@ -1246,29 +1287,21 @@ class TimeRange {
 }
 
 class SortConfig {
-  @observable
   String field;
 
-  @observable
   SortOrder order;
 
   SortConfig(this.field, this.order);
 
-  @action
-  void sortOn(String field) {
-    if (field != this.field)
-      order = SortOrder.Ascending;
-    else
-      order = nextSortOrder(order);
-    this.field = field;
+  SortConfig sortOn(String field) {
+    final order = field != this.field ? SortOrder.Ascending : nextSortOrder(this.order);
+    return SortConfig(field, order);
   }
 
   String getIndicator(String field) {
     if (this.field != field) return '';
-    if (order == SortOrder.Ascending)
-      return ' \u2191';
-    if (order == SortOrder.Descending)
-      return ' \u2193';
+    if (order == SortOrder.Ascending) return ' \u2191';
+    if (order == SortOrder.Descending) return ' \u2193';
     return '';
   }
 }
@@ -1288,8 +1321,27 @@ class DecodedPaymentURI {
 }
 
 class SendPageArgs {
+  final bool isMulti;
   final Contact? contact;
   final String? uri;
+  final List<Recipient> recipients;
 
-  SendPageArgs({this.contact, this.uri});
+  SendPageArgs({this.isMulti = false, this.contact, this.uri, this.recipients = const[]});
+}
+
+class ShareInfo {
+  final int index;
+  final int threshold;
+  final int participants;
+  final String value;
+
+  ShareInfo(this.index, this.threshold, this.participants, this.value);
+}
+
+class TxSummary {
+  final String address;
+  final int amount;
+  final String txJson;
+
+  TxSummary(this.address, this.amount, this.txJson);
 }
diff --git a/native/warp_api_ffi/Cargo.toml b/native/warp_api_ffi/Cargo.toml
index fa527af..e5657a3 100644
--- a/native/warp_api_ffi/Cargo.toml
+++ b/native/warp_api_ffi/Cargo.toml
@@ -22,7 +22,11 @@ hex = "0.4.3"
 
 [dependencies.zcash_primitives]
 git = "https://github.com/hhanh00/librustzcash.git"
-rev = "6baf1ba63261dda09e5b1d4b476977842a1f61c8"
+rev = "1518b145f8ee67e144fa8337c7dfd4c8cff899c9"
+
+[dependencies.zcash_multisig]
+git = "https://github.com/hhanh00/zcash-multisig.git"
+rev = "ce5baab5a25021950f51a9d53dc6c39ea9fe2997"
 
 [build-dependencies]
 cbindgen = "0.19.0"
diff --git a/native/warp_api_ffi/binding.h b/native/warp_api_ffi/binding.h
index b42d028..d80630b 100644
--- a/native/warp_api_ffi/binding.h
+++ b/native/warp_api_ffi/binding.h
@@ -1,5 +1,6 @@
 #ifndef __APPLE__
 typedef char int8_t;
+typedef short int uint16_t;
 typedef long long int int64_t;
 typedef long long int uint64_t;
 typedef long long int uintptr_t;
@@ -17,7 +18,7 @@ void dart_post_cobject(DartPostCObjectFnType ptr);
 
 uint32_t get_latest_height(void);
 
-bool is_valid_key(char *seed);
+int8_t is_valid_key(char *seed);
 
 bool valid_address(char *address);
 
@@ -29,18 +30,10 @@ int32_t new_account(char *name, char *data);
 
 int64_t get_mempool_balance(void);
 
-const char *send_payment(uint32_t account,
-                         char *address,
-                         uint64_t amount,
-                         char *memo,
-                         uint64_t max_amount_per_note,
-                         uint32_t anchor_offset,
-                         bool shield_transparent_balance,
-                         int64_t port);
-
 const char *send_multi_payment(uint32_t account,
                                char *recipients_json,
                                uint32_t anchor_offset,
+                               bool use_transparent,
                                int64_t port);
 
 int8_t try_warp_sync(bool get_tx, uint32_t anchor_offset);
@@ -59,16 +52,15 @@ char *shield_taddr(uint32_t account);
 
 void set_lwd_url(char *url);
 
-char *prepare_offline_tx(uint32_t account,
-                         char *to_address,
-                         uint64_t amount,
-                         char *memo,
-                         uint64_t max_amount_per_note,
-                         uint32_t anchor_offset,
-                         char *tx_filename);
+char *prepare_multi_payment(uint32_t account,
+                            char *recipients_json,
+                            bool use_transparent,
+                            uint32_t anchor_offset);
 
 char *broadcast(char *tx_filename);
 
+char *broadcast_txhex(char *txhex);
+
 uint32_t sync_historical_prices(int64_t now, uint32_t days, char *currency);
 
 char *get_ua(char *sapling_addr, char *transparent_addr);
@@ -87,4 +79,18 @@ char *make_payment_uri(char *address, uint64_t amount, char *memo);
 
 char *parse_payment_uri(char *uri);
 
+void store_share_secret(uint32_t account, char *secret);
+
+char *get_share_secret(uint32_t account);
+
+void run_aggregator(char *secret_share, uint16_t port, int64_t send_port);
+
+void shutdown_aggregator(void);
+
+char *submit_multisig_tx(char *tx_json, uint16_t port);
+
+uint32_t run_multi_signer(char *secret_share, char *aggregator_url, char *my_url, uint16_t port);
+
+char *split_account(uint32_t threshold, uint32_t participants, uint32_t account);
+
 void dummy_export(void);
diff --git a/native/warp_api_ffi/binding2.h b/native/warp_api_ffi/binding2.h
index bfc11d0..68459ea 100644
--- a/native/warp_api_ffi/binding2.h
+++ b/native/warp_api_ffi/binding2.h
@@ -1,5 +1,6 @@
 #ifndef __APPLE__
 typedef char int8_t;
+typedef short int uint16_t;
 typedef long long int int64_t;
 typedef long long int uint64_t;
 typedef long long int uintptr_t;
diff --git a/native/warp_api_ffi/src/api.rs b/native/warp_api_ffi/src/api.rs
index 062b2f7..a2e56b3 100644
--- a/native/warp_api_ffi/src/api.rs
+++ b/native/warp_api_ffi/src/api.rs
@@ -4,15 +4,23 @@ use android_logger::Config;
 use log::{error, info, Level};
 use once_cell::sync::OnceCell;
 use std::fs::File;
-use std::io::{Read, Write};
+use std::io::Read;
 use std::sync::{Mutex, MutexGuard};
 use sync::{broadcast_tx, ChainError, MemPool, Wallet};
 use tokio::runtime::Runtime;
+use tokio::time::Duration;
+use zcash_multisig::{
+    run_aggregator_service, run_signer_service, signer_connect_to_aggregator, submit_tx,
+    SecretShare,
+};
 use zcash_primitives::transaction::builder::Progress;
 
+static RUNTIME: OnceCell<Mutex<Runtime>> = OnceCell::new();
 static WALLET: OnceCell<Mutex<Wallet>> = OnceCell::new();
 static MEMPOOL: OnceCell<Mutex<MemPool>> = OnceCell::new();
 static SYNCLOCK: OnceCell<Mutex<()>> = OnceCell::new();
+static MULTISIG_AGG_LOCK: OnceCell<Mutex<MultisigAggregator>> = OnceCell::new();
+static MULTISIG_SIGN_LOCK: OnceCell<Mutex<MultisigClient>> = OnceCell::new();
 
 fn get_lock<T>(cell: &OnceCell<Mutex<T>>) -> anyhow::Result<MutexGuard<T>> {
     cell.get()
@@ -48,6 +56,7 @@ fn log_result_string(result: anyhow::Result<String>) -> String {
 pub fn init_wallet(db_path: &str, ld_url: &str) {
     android_logger::init_once(Config::default().with_min_level(Level::Info));
     info!("Init");
+    RUNTIME.get_or_init(|| Mutex::new(Runtime::new().unwrap()));
     WALLET.get_or_init(|| {
         info!("Wallet Init");
         let wallet = Wallet::new(db_path, ld_url);
@@ -59,6 +68,8 @@ pub fn init_wallet(db_path: &str, ld_url: &str) {
         Mutex::new(mempool)
     });
     SYNCLOCK.get_or_init(|| Mutex::new(()));
+    MULTISIG_AGG_LOCK.get_or_init(|| Mutex::new(MultisigAggregator::new()));
+    MULTISIG_SIGN_LOCK.get_or_init(|| Mutex::new(MultisigClient::new()));
 }
 
 pub fn new_account(name: &str, data: &str) -> i32 {
@@ -192,28 +203,25 @@ fn report_progress(progress: Progress, port: i64) {
     }
 }
 
-pub fn send_payment(
+pub fn send_multi_payment(
     account: u32,
-    address: &str,
-    amount: u64,
-    memo: &str,
-    max_amount_per_note: u64,
-    anchor_offset: u32,
+    recipients_json: &str,
     use_transparent: bool,
+    anchor_offset: u32,
     port: i64,
 ) -> String {
     let r = get_runtime();
     let res = r.block_on(async {
         let mut wallet = get_lock(&WALLET)?;
+        let height = sync::latest_height(&wallet.ld_url).await?;
+        let recipients = Wallet::parse_recipients(recipients_json)?;
         let res = wallet
-            .send_payment(
+            .build_sign_send_multi_payment(
                 account,
-                address,
-                amount,
-                memo,
-                max_amount_per_note,
-                anchor_offset,
+                height,
+                &recipients,
                 use_transparent,
+                anchor_offset,
                 move |progress| {
                     report_progress(progress, port);
                 },
@@ -224,25 +232,6 @@ pub fn send_payment(
     log_result_string(res)
 }
 
-pub fn send_multi_payment(
-    account: u32,
-    recipients_json: &str,
-    anchor_offset: u32,
-    port: i64,
-) -> String {
-    let r = get_runtime();
-    let res = r.block_on(async {
-        let mut wallet = get_lock(&WALLET)?;
-        let res = wallet
-            .send_multi_payment(account, recipients_json, anchor_offset, move |progress| {
-                report_progress(progress, port);
-            })
-            .await?;
-        Ok(res)
-    });
-    log_result_string(res)
-}
-
 pub fn skip_to_last_height() {
     let r = get_runtime();
     let res = r.block_on(async {
@@ -306,7 +295,8 @@ pub fn shield_taddr(account: u32) -> String {
     let r = get_runtime();
     let res = r.block_on(async {
         let mut wallet = get_lock(&WALLET)?;
-        wallet.shield_taddr(account).await
+        let height = sync::latest_height(&wallet.ld_url).await?;
+        wallet.shield_taddr(account, height).await
     });
     log_result(res)
 }
@@ -319,48 +309,50 @@ pub fn set_lwd_url(url: &str) {
     log_result(res())
 }
 
-pub fn prepare_offline_tx(
+pub fn prepare_multi_payment(
     account: u32,
-    to_address: &str,
-    amount: u64,
-    memo: &str,
-    max_amount_per_note: u64,
+    recipients_json: &str,
+    use_transparent: bool,
     anchor_offset: u32,
-    tx_filename: &str,
 ) -> String {
     let r = get_runtime();
     let res = r.block_on(async {
-        let wallet = get_lock(&WALLET)?;
+        let mut wallet = get_lock(&WALLET)?;
+        let last_height = sync::latest_height(&wallet.ld_url).await?;
+        let recipients = Wallet::parse_recipients(recipients_json)?;
         let tx = wallet
-            .prepare_payment(
+            .build_only_multi_payment(
                 account,
-                to_address,
-                amount,
-                memo,
-                max_amount_per_note,
+                last_height,
+                &recipients,
+                use_transparent,
                 anchor_offset,
             )
             .await?;
-        let mut file = File::create(tx_filename)?;
-        writeln!(file, "{}", tx)?;
-        Ok("File saved".to_string())
+        Ok(tx)
     });
     log_result_string(res)
 }
 
-async fn _broadcast(tx_filename: &str, ld_url: &str) -> anyhow::Result<String> {
-    let mut file = File::open(&tx_filename)?;
-    let mut s = String::new();
-    file.read_to_string(&mut s)?;
-    let tx = hex::decode(s.trim_end())?;
-    broadcast_tx(&tx, ld_url).await
-}
-
 pub fn broadcast(tx_filename: &str) -> String {
     let r = get_runtime();
     let res = r.block_on(async {
         let wallet = get_lock(&WALLET)?;
-        _broadcast(tx_filename, &wallet.ld_url).await
+        let mut file = File::open(&tx_filename)?;
+        let mut s = String::new();
+        file.read_to_string(&mut s)?;
+        let tx = hex::decode(s.trim_end())?;
+        broadcast_tx(&tx, &wallet.ld_url).await
+    });
+    log_result_string(res)
+}
+
+pub fn broadcast_txhex(txhex: &str) -> String {
+    let r = get_runtime();
+    let res = r.block_on(async {
+        let wallet = get_lock(&WALLET)?;
+        let tx = hex::decode(txhex)?;
+        broadcast_tx(&tx, &wallet.ld_url).await
     });
     log_result_string(res)
 }
@@ -441,3 +433,116 @@ pub fn parse_payment_uri(uri: &str) -> String {
     };
     log_result(res())
 }
+
+pub fn store_share_secret(account: u32, secret: &str) {
+    let res = || {
+        let wallet = get_lock(&WALLET)?;
+        wallet.store_share_secret(account, secret)?;
+        Ok(())
+    };
+    log_result(res())
+}
+
+pub fn get_share_secret(account: u32) -> String {
+    let res = || {
+        let wallet = get_lock(&WALLET)?;
+        let secret = wallet.get_share_secret(account)?;
+        Ok(secret)
+    };
+    log_result(res())
+}
+
+struct MultisigAggregator {
+    shutdown_signal: Option<tokio::sync::oneshot::Sender<()>>,
+}
+
+impl MultisigAggregator {
+    pub fn new() -> Self {
+        MultisigAggregator {
+            shutdown_signal: None,
+        }
+    }
+}
+
+pub fn run_aggregator(secret_share: &str, port: u16, send_port: i64) {
+    let runtime = get_lock(&RUNTIME).unwrap();
+    let res = runtime.block_on(async {
+        let mut aggregator = get_lock(&MULTISIG_AGG_LOCK)?;
+        let (shutdown, _jh) = run_aggregator_service(
+            port,
+            secret_share,
+            Box::new(move || {
+                let mut null = ().into_dart();
+                unsafe {
+                    POST_COBJ.map(|p| {
+                        p(send_port, &mut null);
+                    });
+                }
+            }),
+        )
+        .await?;
+        aggregator.shutdown_signal = Some(shutdown);
+        Ok(())
+    });
+    log_result(res)
+}
+
+pub fn shutdown_aggregator() {
+    let res = || {
+        let mut aggregator = get_lock(&MULTISIG_AGG_LOCK)?;
+        let shutdown_signal = aggregator.shutdown_signal.take();
+        if let Some(shutdown_signal) = shutdown_signal {
+            let _ = shutdown_signal.send(());
+        }
+        Ok(())
+    };
+    log_result(res())
+}
+
+pub fn submit_multisig_tx(tx_str: &str, port: u16) -> Vec<u8> {
+    let r = get_runtime();
+    let res: anyhow::Result<_> = r.block_on(async {
+        let raw_tx = submit_tx(port, tx_str).await?;
+        Ok(raw_tx)
+    });
+    let mut v: Vec<u8> = vec![];
+    match res {
+        Ok(raw_tx) => {
+            v.push(0x00);
+            v.extend(raw_tx);
+        }
+        Err(e) => {
+            v.push(0x01);
+            v.extend(e.to_string().as_bytes());
+        }
+    }
+    v
+}
+
+struct MultisigClient {}
+
+impl MultisigClient {
+    pub fn new() -> Self {
+        MultisigClient {}
+    }
+}
+
+pub fn run_multi_signer(secret_share: &str, aggregator_url: &str, my_url: &str, port: u16) -> u32 {
+    let runtime = get_lock(&RUNTIME).unwrap();
+    let res = runtime.block_on(async {
+        let _jh = run_signer_service(port, secret_share).await?;
+        tokio::time::sleep(Duration::from_secs(3)).await;
+        let share = SecretShare::decode(secret_share)?;
+        let error_code = signer_connect_to_aggregator(aggregator_url, my_url, share.index).await?;
+        Ok(error_code)
+    });
+    log_result(res)
+}
+
+pub fn split_account(threshold: u32, participants: u32, account: u32) -> String {
+    let res = || {
+        let wallet = get_lock(&WALLET)?;
+        wallet.split_account(threshold as usize, participants as usize, account)
+    };
+    log_result(res())
+}
diff --git a/native/warp_api_ffi/src/lib.rs b/native/warp_api_ffi/src/lib.rs
index 9f30a55..dd9be2c 100644
--- a/native/warp_api_ffi/src/lib.rs
+++ b/native/warp_api_ffi/src/lib.rs
@@ -29,7 +29,7 @@ pub unsafe extern "C" fn get_latest_height() -> u32 {
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn is_valid_key(seed: *mut c_char) -> bool {
+pub unsafe extern "C" fn is_valid_key(seed: *mut c_char) -> i8 {
     let seed = CStr::from_ptr(seed).to_string_lossy();
     sync::is_valid_key(&seed)
 }
@@ -63,41 +63,22 @@ pub unsafe extern "C" fn get_mempool_balance() -> i64 {
     api::get_mempool_balance()
 }
 
-#[no_mangle]
-pub unsafe extern "C" fn send_payment(
-    account: u32,
-    address: *mut c_char,
-    amount: u64,
-    memo: *mut c_char,
-    max_amount_per_note: u64,
-    anchor_offset: u32,
-    use_transparent: bool,
-    port: i64,
-) -> *const c_char {
-    let address = CStr::from_ptr(address).to_string_lossy();
-    let memo = CStr::from_ptr(memo).to_string_lossy();
-    let tx_id = api::send_payment(
-        account,
-        &address,
-        amount,
-        &memo,
-        max_amount_per_note,
-        anchor_offset,
-        use_transparent,
-        port,
-    );
-    CString::new(tx_id).unwrap().into_raw()
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn send_multi_payment(
     account: u32,
     recipients_json: *mut c_char,
     anchor_offset: u32,
+    use_transparent: bool,
     port: i64,
 ) -> *const c_char {
     let recipients_json = CStr::from_ptr(recipients_json).to_string_lossy();
-    let tx_id = api::send_multi_payment(account, &recipients_json, anchor_offset, port);
+    let tx_id = api::send_multi_payment(
+        account,
+        &recipients_json,
+        use_transparent,
+        anchor_offset,
+        port,
+    );
     CString::new(tx_id).unwrap().into_raw()
 }
 
@@ -144,28 +125,15 @@ pub unsafe extern "C" fn set_lwd_url(url: *mut c_char) {
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn prepare_offline_tx(
+pub unsafe extern "C" fn prepare_multi_payment(
     account: u32,
-    to_address: *mut c_char,
-    amount: u64,
-    memo: *mut c_char,
-    max_amount_per_note: u64,
+    recipients_json: *mut c_char,
+    use_transparent: bool,
     anchor_offset: u32,
-    tx_filename: *mut c_char,
 ) -> *mut c_char {
-    let to_address = CStr::from_ptr(to_address).to_string_lossy();
-    let memo = CStr::from_ptr(memo).to_string_lossy();
-    let tx_filename = CStr::from_ptr(tx_filename).to_string_lossy();
-    let res = api::prepare_offline_tx(
-        account,
-        &to_address,
-        amount,
-        &memo,
-        max_amount_per_note,
-        anchor_offset,
-        &tx_filename,
-    );
-    CString::new(res).unwrap().into_raw()
+    let recipients_json = CStr::from_ptr(recipients_json).to_string_lossy();
+    let tx = api::prepare_multi_payment(account, &recipients_json, use_transparent, anchor_offset);
+    CString::new(tx).unwrap().into_raw()
 }
 
 #[no_mangle]
@@ -175,6 +143,13 @@ pub unsafe extern "C" fn broadcast(tx_filename: *mut c_char) -> *mut c_char {
     CString::new(res).unwrap().into_raw()
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn broadcast_txhex(txhex: *mut c_char) -> *mut c_char {
+    let txhex = CStr::from_ptr(txhex).to_string_lossy();
+    let res = api::broadcast_txhex(&txhex);
+    CString::new(res).unwrap().into_raw()
+}
+
 #[no_mangle]
 pub unsafe extern "C" fn sync_historical_prices(now: i64, days: u32, currency: *mut c_char) -> u32 {
     let currency = CStr::from_ptr(currency).to_string_lossy();
@@ -246,5 +221,59 @@ pub unsafe extern "C" fn parse_payment_uri(uri: *mut c_char) -> *mut c_char {
     CString::new(payment_json).unwrap().into_raw()
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn store_share_secret(account: u32, secret: *mut c_char) {
+    let secret = CStr::from_ptr(secret).to_string_lossy();
+    api::store_share_secret(account, &secret);
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn get_share_secret(account: u32) -> *mut c_char {
+    let secret = api::get_share_secret(account);
+    CString::new(secret).unwrap().into_raw()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn run_aggregator(secret_share: *mut c_char, port: u16, send_port: i64) {
+    let secret_share = CStr::from_ptr(secret_share).to_string_lossy();
+    api::run_aggregator(&secret_share, port, send_port);
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn shutdown_aggregator() {
+    api::shutdown_aggregator();
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn submit_multisig_tx(tx_json: *mut c_char, port: u16) -> *mut c_char {
+    let tx_json = CStr::from_ptr(tx_json).to_string_lossy();
+    let raw_tx = api::submit_multisig_tx(&tx_json, port);
+    let raw_tx = hex::encode(raw_tx);
+    CString::new(raw_tx).unwrap().into_raw()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn run_multi_signer(
+    secret_share: *mut c_char,
+    aggregator_url: *mut c_char,
+    my_url: *mut c_char,
+    port: u16,
+) -> u32 {
+    let secret_share = CStr::from_ptr(secret_share).to_string_lossy();
+    let aggregator_url = CStr::from_ptr(aggregator_url).to_string_lossy();
+    let my_url = CStr::from_ptr(my_url).to_string_lossy();
+    api::run_multi_signer(&secret_share, &aggregator_url, &my_url, port)
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn split_account(
+    threshold: u32,
+    participants: u32,
+    account: u32,
+) -> *mut c_char {
+    let r = api::split_account(threshold, participants, account);
+    CString::new(r).unwrap().into_raw()
+}
+
 #[no_mangle]
 pub unsafe extern "C" fn dummy_export() {}
diff --git a/native/zcash-multisig b/native/zcash-multisig
new file mode 160000
index 0000000..ce5baab
--- /dev/null
+++ b/native/zcash-multisig
@@ -0,0 +1 @@
+Subproject commit ce5baab5a25021950f51a9d53dc6c39ea9fe2997
diff --git a/native/zcash-params b/native/zcash-params
index f8eb264..f54214d 160000
--- a/native/zcash-params
+++ b/native/zcash-params
@@ -1 +1 @@
-Subproject commit f8eb2641dd7c4f3e57cd8c928334c1ae4e4284a4
+Subproject commit f54214d0a6752188efd1404e39b10be58a27ea0f
diff --git a/native/zcash-sync b/native/zcash-sync
index 2470a4e..ccb25c6 160000
--- a/native/zcash-sync
+++ b/native/zcash-sync
@@ -1 +1 @@
-Subproject commit 2470a4e6af618aa6a5c85948b1c558d265d54484
+Subproject commit ccb25c61f9349c1d4142bbf58ed1bb57f1b9cfeb
diff --git a/packages/warp_api_ffi/example/pubspec.lock b/packages/warp_api_ffi/example/pubspec.lock
index dc741e7..019c9e6 100644
--- a/packages/warp_api_ffi/example/pubspec.lock
+++ b/packages/warp_api_ffi/example/pubspec.lock
@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.6.1"
+    version: "2.8.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -28,7 +28,7 @@ packages:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
   clock:
     dependency: transitive
     description:
@@ -43,6 +43,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -64,6 +71,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -74,6 +88,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.3.0"
   matcher:
     dependency: transitive
     description:
@@ -87,7 +108,7 @@ packages:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.7.0"
   path:
     dependency: transitive
     description:
@@ -95,6 +116,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
+  protobuf:
+    dependency: transitive
+    description:
+      name: protobuf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -141,7 +169,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.0"
+    version: "0.4.2"
   typed_data:
     dependency: transitive
     description:
@@ -164,5 +192,5 @@ packages:
     source: path
     version: "0.0.1"
 sdks:
-  dart: ">=2.12.0 <3.0.0"
+  dart: ">=2.14.0 <3.0.0"
   flutter: ">=1.20.0"
diff --git a/packages/warp_api_ffi/lib/types.dart b/packages/warp_api_ffi/lib/types.dart
new file mode 100644
index 0000000..bbb8453
--- /dev/null
+++ b/packages/warp_api_ffi/lib/types.dart
@@ -0,0 +1,21 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'types.g.dart';
+
+@JsonSerializable()
+class Recipient {
+  // ignore: non_constant_identifier_names
+  final String address;
+  final int amount;
+  final String memo;
+  // ignore: non_constant_identifier_names
+  final int max_amount_per_note;
+
+  Recipient(this.address, this.amount, this.memo, this.max_amount_per_note);
+
+  factory Recipient.fromJson(Map<String, dynamic> json) =>
+      _$RecipientFromJson(json);
+
+  Map<String, dynamic> toJson() => _$RecipientToJson(this);
+}
+
diff --git a/packages/warp_api_ffi/lib/warp_api.dart b/packages/warp_api_ffi/lib/warp_api.dart
index 01b2d14..8a27f95 100644
--- a/packages/warp_api_ffi/lib/warp_api.dart
+++ b/packages/warp_api_ffi/lib/warp_api.dart
@@ -1,12 +1,15 @@
 import 'dart:async';
+import 'dart:convert';
 import 'dart:ffi';
 import 'dart:io';
 import 'dart:isolate';
+import 'package:convert/convert.dart';
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:ffi/ffi.dart';
 import './warp_api_generated.dart';
+import 'types.dart';
 
 typedef report_callback = Void Function(Int32);
 const DAY_MS = 24 * 3600 * 1000;
@@ -21,25 +24,12 @@ class SyncParams {
 
 class PaymentParams {
   int account;
-  String address;
-  int amount;
-  String memo;
-  int maxAmountPerNote;
-  int anchorOffset;
+  String recipientsJson;
   bool useTransparent;
-  SendPort port;
-
-  PaymentParams(this.account, this.address, this.amount, this.memo, this.maxAmountPerNote,
-      this.anchorOffset, this.useTransparent, this.port);
-}
-
-class MultiPaymentParams {
-  int account;
-  String recipientJson;
   int anchorOffset;
   SendPort port;
 
-  MultiPaymentParams(this.account, this.recipientJson, this.anchorOffset, this.port);
+  PaymentParams(this.account, this.recipientsJson, this.useTransparent, this.anchorOffset, this.port);
 }
 
 class CommitContactsParams {
@@ -113,8 +103,8 @@ class WarpApi {
     return await compute(getLatestHeightIsolateFn, null);
   }
 
-  static bool validKey(String key) {
-    return warp_api_lib.is_valid_key(key.toNativeUtf8().cast<Int8>()) != 0;
+  static int validKey(String key) {
+    return warp_api_lib.is_valid_key(key.toNativeUtf8().cast<Int8>());
   }
 
   static bool validAddress(String address) {
@@ -144,29 +134,18 @@ class WarpApi {
     return warp_api_lib.get_mempool_balance();
   }
 
-  static Future<String> sendPayment(int account, String address, int amount, String memo,
-      int maxAmountPerNote, int anchorOffset, bool useTransparent, void Function(int) f) async {
+  static Future<String> sendPayment(int account, List<Recipient> recipients, bool useTransparent, int anchorOffset, void Function(int) f) async {
     var receivePort = ReceivePort();
     receivePort.listen((progress) {
       f(progress);
     });
 
+    final recipientJson = jsonEncode(recipients);
+
     return await compute(
         sendPaymentIsolateFn,
         PaymentParams(
-            account, address, amount, memo, maxAmountPerNote, anchorOffset, useTransparent, receivePort.sendPort));
-  }
-
-  static Future<String> sendMultiPayment(int account, String recipientsJson, int anchorOffset, void Function(int) f) async {
-    var receivePort = ReceivePort();
-    receivePort.listen((progress) {
-      f(progress);
-    });
-
-    return await compute(
-        sendMultiPaymentIsolateFn,
-        MultiPaymentParams(
-            account, recipientsJson, anchorOffset, receivePort.sendPort));
+            account, recipientJson, useTransparent, anchorOffset, receivePort.sendPort));
   }
 
   static int getTBalance(int account) {
@@ -186,16 +165,14 @@ class WarpApi {
 
   static String  prepareTx(
     int account,
-    String toAddress,
-    int amount,
-    String memo,
-    int maxAmountPerNote,
+    List<Recipient> recipients,
+    bool useTransparent,
     int anchorOffset,
     String txFilename) {
-    final res = warp_api_lib.prepare_offline_tx(account,
-        toAddress.toNativeUtf8().cast<Int8>(), amount,
-        memo.toNativeUtf8().cast<Int8>(), maxAmountPerNote, anchorOffset,
-        txFilename.toNativeUtf8().cast<Int8>());
+    final recipientsJson = jsonEncode(recipients);
+    final res = warp_api_lib.prepare_multi_payment(account,
+        recipientsJson.toNativeUtf8().cast<Int8>(),
+        useTransparent ? 1 : 0, anchorOffset);
     return res.cast<Utf8>().toDartString();
   }
 
@@ -204,6 +181,11 @@ class WarpApi {
     return res.cast<Utf8>().toDartString();
   }
 
+  static String broadcastHex(String tx) {
+    final res = warp_api_lib.broadcast_txhex(tx.toNativeUtf8().cast<Int8>());
+    return res.cast<Utf8>().toDartString();
+  }
+
   static Future<int> syncHistoricalPrices(String currency) async {
     return await compute(syncHistoricalPricesIsolateFn, currency);
   }
@@ -241,26 +223,73 @@ class WarpApi {
         uri.toNativeUtf8().cast<Int8>());
     return json.cast<Utf8>().toDartString();
   }
+
+  static void storeShareSecret(int account, String secret) {
+    warp_api_lib.store_share_secret(account, secret.toNativeUtf8().cast<Int8>());
+  }
+
+  static Future<void> runAggregator(String secretShare, int port, SendPort sendPort) async {
+    compute(runAggregatorIsolateFn, RunAggregatorParams(secretShare, port, sendPort.nativePort));
+  }
+
+  static Future<String> submitTx(String txJson, int port) async {
+    return await compute(submitTxIsolateFn, SubmitTxParams(txJson, port));
+  }
+
+  static Future<int> runMultiSigner(String secretShare, String aggregatorUrl, String myUrl, int port) async {
+    return await compute(runMultiSignerIsolateFn, RunMultiSignerParams(secretShare, aggregatorUrl, myUrl, port));
+  }
+
+  static void stopAggregator() {
+    warp_api_lib.shutdown_aggregator();
+  }
+
+  static String splitAccount(int threshold, int participants, int account) {
+    return warp_api_lib.split_account(threshold, participants, account).cast<Utf8>().toDartString();
+  }
+}
+
+class RunAggregatorParams {
+  String secretShare;
+  int port;
+  int sendPort;
+  RunAggregatorParams(this.secretShare, this.port, this.sendPort);
+}
+
+void runAggregatorIsolateFn(RunAggregatorParams params) {
+  warp_api_lib.run_aggregator(params.secretShare.toNativeUtf8().cast<Int8>(), params.port, params.sendPort);
+}
+
+class SubmitTxParams {
+  String txJson;
+  int port;
+  SubmitTxParams(this.txJson, this.port);
+}
+
+String submitTxIsolateFn(SubmitTxParams params) {
+  final r = warp_api_lib.submit_multisig_tx(params.txJson.toNativeUtf8().cast<Int8>(), params.port);
+  return r.cast<Utf8>().toDartString();
+}
+
+class RunMultiSignerParams {
+  String secretShare;
+  String aggregatorUrl;
+  String myUrl;
+  int port;
+  RunMultiSignerParams(this.secretShare, this.aggregatorUrl, this.myUrl, this.port);
+}
+
+int runMultiSignerIsolateFn(RunMultiSignerParams params) {
+  return warp_api_lib.run_multi_signer(params.secretShare.toNativeUtf8().cast<Int8>(),
+      params.aggregatorUrl.toNativeUtf8().cast<Int8>(), params.myUrl.toNativeUtf8().cast<Int8>(), params.port);
 }
 
 String sendPaymentIsolateFn(PaymentParams params) {
-  final txId = warp_api_lib.send_payment(
-      params.account,
-      params.address.toNativeUtf8().cast<Int8>(),
-      params.amount,
-      params.memo.toNativeUtf8().cast<Int8>(),
-      params.maxAmountPerNote,
-      params.anchorOffset,
-      params.useTransparent ? 1 : 0,
-      params.port.nativePort);
-  return txId.cast<Utf8>().toDartString();
-}
-
-String sendMultiPaymentIsolateFn(MultiPaymentParams params) {
   final txId = warp_api_lib.send_multi_payment(
       params.account,
-      params.recipientJson.toNativeUtf8().cast<Int8>(),
+      params.recipientsJson.toNativeUtf8().cast<Int8>(),
       params.anchorOffset,
+      params.useTransparent ? 1 : 0,
       params.port.nativePort);
   return txId.cast<Utf8>().toDartString();
 }
@@ -285,7 +314,7 @@ String shieldTAddrIsolateFn(int account) {
 int syncHistoricalPricesIsolateFn(String currency) {
   final now = DateTime.now();
   final today = DateTime.utc(now.year, now.month, now.day);
-  return warp_api_lib.sync_historical_prices(today.millisecondsSinceEpoch ~/ 1000, 370, currency.toNativeUtf8().cast<Int8>());
+  return warp_api_lib.sync_historical_prices(today.millisecondsSinceEpoch ~/ 1000, 365, currency.toNativeUtf8().cast<Int8>());
 }
 
 String commitUnsavedContactsIsolateFn(CommitContactsParams params) {
@@ -296,3 +325,4 @@ String commitUnsavedContactsIsolateFn(CommitContactsParams params) {
 int getTBalanceIsolateFn(int account) {
   return warp_api_lib.get_taddr_balance(account);
 }
+
diff --git a/packages/warp_api_ffi/lib/warp_api_generated.dart b/packages/warp_api_ffi/lib/warp_api_generated.dart
index f497dcb..b6dbe51 100644
--- a/packages/warp_api_ffi/lib/warp_api_generated.dart
+++ b/packages/warp_api_ffi/lib/warp_api_generated.dart
@@ -150,43 +150,18 @@ class NativeLibrary {
   late final _dart_get_mempool_balance _get_mempool_balance =
       _get_mempool_balance_ptr.asFunction<_dart_get_mempool_balance>();
 
-  ffi.Pointer<ffi.Int8> send_payment(
-    int account,
-    ffi.Pointer<ffi.Int8> address,
-    int amount,
-    ffi.Pointer<ffi.Int8> memo,
-    int max_amount_per_note,
-    int anchor_offset,
-    int shield_transparent_balance,
-    int port,
-  ) {
-    return _send_payment(
-      account,
-      address,
-      amount,
-      memo,
-      max_amount_per_note,
-      anchor_offset,
-      shield_transparent_balance,
-      port,
-    );
-  }
-
-  late final _send_payment_ptr =
-      _lookup<ffi.NativeFunction<_c_send_payment>>('send_payment');
-  late final _dart_send_payment _send_payment =
-      _send_payment_ptr.asFunction<_dart_send_payment>();
-
   ffi.Pointer<ffi.Int8> send_multi_payment(
     int account,
     ffi.Pointer<ffi.Int8> recipients_json,
     int anchor_offset,
+    int use_transparent,
     int port,
   ) {
     return _send_multi_payment(
       account,
       recipients_json,
       anchor_offset,
+      use_transparent,
       port,
     );
   }
@@ -295,30 +270,25 @@ class NativeLibrary {
   late final _dart_set_lwd_url _set_lwd_url =
       _set_lwd_url_ptr.asFunction<_dart_set_lwd_url>();
 
-  ffi.Pointer<ffi.Int8> prepare_offline_tx(
+  ffi.Pointer<ffi.Int8> prepare_multi_payment(
     int account,
-    ffi.Pointer<ffi.Int8> to_address,
-    int amount,
-    ffi.Pointer<ffi.Int8> memo,
-    int max_amount_per_note,
+    ffi.Pointer<ffi.Int8> recipients_json,
+    int use_transparent,
     int anchor_offset,
-    ffi.Pointer<ffi.Int8> tx_filename,
   ) {
-    return _prepare_offline_tx(
+    return _prepare_multi_payment(
       account,
-      to_address,
-      amount,
-      memo,
-      max_amount_per_note,
+      recipients_json,
+      use_transparent,
       anchor_offset,
-      tx_filename,
     );
   }
 
-  late final _prepare_offline_tx_ptr =
-      _lookup<ffi.NativeFunction<_c_prepare_offline_tx>>('prepare_offline_tx');
-  late final _dart_prepare_offline_tx _prepare_offline_tx =
-      _prepare_offline_tx_ptr.asFunction<_dart_prepare_offline_tx>();
+  late final _prepare_multi_payment_ptr =
+      _lookup<ffi.NativeFunction<_c_prepare_multi_payment>>(
+          'prepare_multi_payment');
+  late final _dart_prepare_multi_payment _prepare_multi_payment =
+      _prepare_multi_payment_ptr.asFunction<_dart_prepare_multi_payment>();
 
   ffi.Pointer<ffi.Int8> broadcast(
     ffi.Pointer<ffi.Int8> tx_filename,
@@ -333,6 +303,19 @@ class NativeLibrary {
   late final _dart_broadcast _broadcast =
       _broadcast_ptr.asFunction<_dart_broadcast>();
 
+  ffi.Pointer<ffi.Int8> broadcast_txhex(
+    ffi.Pointer<ffi.Int8> txhex,
+  ) {
+    return _broadcast_txhex(
+      txhex,
+    );
+  }
+
+  late final _broadcast_txhex_ptr =
+      _lookup<ffi.NativeFunction<_c_broadcast_txhex>>('broadcast_txhex');
+  late final _dart_broadcast_txhex _broadcast_txhex =
+      _broadcast_txhex_ptr.asFunction<_dart_broadcast_txhex>();
+
   int sync_historical_prices(
     int now,
     int days,
@@ -464,6 +447,112 @@ class NativeLibrary {
   late final _dart_parse_payment_uri _parse_payment_uri =
       _parse_payment_uri_ptr.asFunction<_dart_parse_payment_uri>();
 
+  void store_share_secret(
+    int account,
+    ffi.Pointer<ffi.Int8> secret,
+  ) {
+    return _store_share_secret(
+      account,
+      secret,
+    );
+  }
+
+  late final _store_share_secret_ptr =
+      _lookup<ffi.NativeFunction<_c_store_share_secret>>('store_share_secret');
+  late final _dart_store_share_secret _store_share_secret =
+      _store_share_secret_ptr.asFunction<_dart_store_share_secret>();
+
+  ffi.Pointer<ffi.Int8> get_share_secret(
+    int account,
+  ) {
+    return _get_share_secret(
+      account,
+    );
+  }
+
+  late final _get_share_secret_ptr =
+      _lookup<ffi.NativeFunction<_c_get_share_secret>>('get_share_secret');
+  late final _dart_get_share_secret _get_share_secret =
+      _get_share_secret_ptr.asFunction<_dart_get_share_secret>();
+
+  void run_aggregator(
+    ffi.Pointer<ffi.Int8> secret_share,
+    int port,
+    int send_port,
+  ) {
+    return _run_aggregator(
+      secret_share,
+      port,
+      send_port,
+    );
+  }
+
+  late final _run_aggregator_ptr =
+      _lookup<ffi.NativeFunction<_c_run_aggregator>>('run_aggregator');
+  late final _dart_run_aggregator _run_aggregator =
+      _run_aggregator_ptr.asFunction<_dart_run_aggregator>();
+
+  void shutdown_aggregator() {
+    return _shutdown_aggregator();
+  }
+
+  late final _shutdown_aggregator_ptr =
+      _lookup<ffi.NativeFunction<_c_shutdown_aggregator>>(
+          'shutdown_aggregator');
+  late final _dart_shutdown_aggregator _shutdown_aggregator =
+      _shutdown_aggregator_ptr.asFunction<_dart_shutdown_aggregator>();
+
+  ffi.Pointer<ffi.Int8> submit_multisig_tx(
+    ffi.Pointer<ffi.Int8> tx_json,
+    int port,
+  ) {
+    return _submit_multisig_tx(
+      tx_json,
+      port,
+    );
+  }
+
+  late final _submit_multisig_tx_ptr =
+      _lookup<ffi.NativeFunction<_c_submit_multisig_tx>>('submit_multisig_tx');
+  late final _dart_submit_multisig_tx _submit_multisig_tx =
+      _submit_multisig_tx_ptr.asFunction<_dart_submit_multisig_tx>();
+
+  int run_multi_signer(
+    ffi.Pointer<ffi.Int8> secret_share,
+    ffi.Pointer<ffi.Int8> aggregator_url,
+    ffi.Pointer<ffi.Int8> my_url,
+    int port,
+  ) {
+    return _run_multi_signer(
+      secret_share,
+      aggregator_url,
+      my_url,
+      port,
+    );
+  }
+
+  late final _run_multi_signer_ptr =
+      _lookup<ffi.NativeFunction<_c_run_multi_signer>>('run_multi_signer');
+  late final _dart_run_multi_signer _run_multi_signer =
+      _run_multi_signer_ptr.asFunction<_dart_run_multi_signer>();
+
+  ffi.Pointer<ffi.Int8> split_account(
+    int threshold,
+    int participants,
+    int account,
+  ) {
+    return _split_account(
+      threshold,
+      participants,
+      account,
+    );
+  }
+
+  late final _split_account_ptr =
+      _lookup<ffi.NativeFunction<_c_split_account>>('split_account');
+  late final _dart_split_account _split_account =
+      _split_account_ptr.asFunction<_dart_split_account>();
+
   void dummy_export() {
     return _dummy_export();
   }
@@ -554,32 +643,11 @@ typedef _c_get_mempool_balance = ffi.Int64 Function();
 
 typedef _dart_get_mempool_balance = int Function();
 
-typedef _c_send_payment = ffi.Pointer<ffi.Int8> Function(
-  ffi.Uint32 account,
-  ffi.Pointer<ffi.Int8> address,
-  ffi.Uint64 amount,
-  ffi.Pointer<ffi.Int8> memo,
-  ffi.Uint64 max_amount_per_note,
-  ffi.Uint32 anchor_offset,
-  ffi.Int8 shield_transparent_balance,
-  ffi.Int64 port,
-);
-
-typedef _dart_send_payment = ffi.Pointer<ffi.Int8> Function(
-  int account,
-  ffi.Pointer<ffi.Int8> address,
-  int amount,
-  ffi.Pointer<ffi.Int8> memo,
-  int max_amount_per_note,
-  int anchor_offset,
-  int shield_transparent_balance,
-  int port,
-);
-
 typedef _c_send_multi_payment = ffi.Pointer<ffi.Int8> Function(
   ffi.Uint32 account,
   ffi.Pointer<ffi.Int8> recipients_json,
   ffi.Uint32 anchor_offset,
+  ffi.Int8 use_transparent,
   ffi.Int64 port,
 );
 
@@ -587,6 +655,7 @@ typedef _dart_send_multi_payment = ffi.Pointer<ffi.Int8> Function(
   int account,
   ffi.Pointer<ffi.Int8> recipients_json,
   int anchor_offset,
+  int use_transparent,
   int port,
 );
 
@@ -648,24 +717,18 @@ typedef _dart_set_lwd_url = void Function(
   ffi.Pointer<ffi.Int8> url,
 );
 
-typedef _c_prepare_offline_tx = ffi.Pointer<ffi.Int8> Function(
+typedef _c_prepare_multi_payment = ffi.Pointer<ffi.Int8> Function(
   ffi.Uint32 account,
-  ffi.Pointer<ffi.Int8> to_address,
-  ffi.Uint64 amount,
-  ffi.Pointer<ffi.Int8> memo,
-  ffi.Uint64 max_amount_per_note,
+  ffi.Pointer<ffi.Int8> recipients_json,
+  ffi.Int8 use_transparent,
   ffi.Uint32 anchor_offset,
-  ffi.Pointer<ffi.Int8> tx_filename,
 );
 
-typedef _dart_prepare_offline_tx = ffi.Pointer<ffi.Int8> Function(
+typedef _dart_prepare_multi_payment = ffi.Pointer<ffi.Int8> Function(
   int account,
-  ffi.Pointer<ffi.Int8> to_address,
-  int amount,
-  ffi.Pointer<ffi.Int8> memo,
-  int max_amount_per_note,
+  ffi.Pointer<ffi.Int8> recipients_json,
+  int use_transparent,
   int anchor_offset,
-  ffi.Pointer<ffi.Int8> tx_filename,
 );
 
 typedef _c_broadcast = ffi.Pointer<ffi.Int8> Function(
@@ -676,6 +739,14 @@ typedef _dart_broadcast = ffi.Pointer<ffi.Int8> Function(
   ffi.Pointer<ffi.Int8> tx_filename,
 );
 
+typedef _c_broadcast_txhex = ffi.Pointer<ffi.Int8> Function(
+  ffi.Pointer<ffi.Int8> txhex,
+);
+
+typedef _dart_broadcast_txhex = ffi.Pointer<ffi.Int8> Function(
+  ffi.Pointer<ffi.Int8> txhex,
+);
+
 typedef _c_sync_historical_prices = ffi.Uint32 Function(
   ffi.Int64 now,
   ffi.Uint32 days,
@@ -762,6 +833,76 @@ typedef _dart_parse_payment_uri = ffi.Pointer<ffi.Int8> Function(
   ffi.Pointer<ffi.Int8> uri,
 );
 
+typedef _c_store_share_secret = ffi.Void Function(
+  ffi.Uint32 account,
+  ffi.Pointer<ffi.Int8> secret,
+);
+
+typedef _dart_store_share_secret = void Function(
+  int account,
+  ffi.Pointer<ffi.Int8> secret,
+);
+
+typedef _c_get_share_secret = ffi.Pointer<ffi.Int8> Function(
+  ffi.Uint32 account,
+);
+
+typedef _dart_get_share_secret = ffi.Pointer<ffi.Int8> Function(
+  int account,
+);
+
+typedef _c_run_aggregator = ffi.Void Function(
+  ffi.Pointer<ffi.Int8> secret_share,
+  ffi.Uint16 port,
+  ffi.Int64 send_port,
+);
+
+typedef _dart_run_aggregator = void Function(
+  ffi.Pointer<ffi.Int8> secret_share,
+  int port,
+  int send_port,
+);
+
+typedef _c_shutdown_aggregator = ffi.Void Function();
+
+typedef _dart_shutdown_aggregator = void Function();
+
+typedef _c_submit_multisig_tx = ffi.Pointer<ffi.Int8> Function(
+  ffi.Pointer<ffi.Int8> tx_json,
+  ffi.Uint16 port,
+);
+
+typedef _dart_submit_multisig_tx = ffi.Pointer<ffi.Int8> Function(
+  ffi.Pointer<ffi.Int8> tx_json,
+  int port,
+);
+
+typedef _c_run_multi_signer = ffi.Uint32 Function(
+  ffi.Pointer<ffi.Int8> secret_share,
+  ffi.Pointer<ffi.Int8> aggregator_url,
+  ffi.Pointer<ffi.Int8> my_url,
+  ffi.Uint16 port,
+);
+
+typedef _dart_run_multi_signer = int Function(
+  ffi.Pointer<ffi.Int8> secret_share,
+  ffi.Pointer<ffi.Int8> aggregator_url,
+  ffi.Pointer<ffi.Int8> my_url,
+  int port,
+);
+
+typedef _c_split_account = ffi.Pointer<ffi.Int8> Function(
+  ffi.Uint32 threshold,
+  ffi.Uint32 participants,
+  ffi.Uint32 account,
+);
+
+typedef _dart_split_account = ffi.Pointer<ffi.Int8> Function(
+  int threshold,
+  int participants,
+  int account,
+);
+
 typedef _c_dummy_export = ffi.Void Function();
 
 typedef _dart_dummy_export = void Function();
diff --git a/packages/warp_api_ffi/pubspec.lock b/packages/warp_api_ffi/pubspec.lock
index b4c2a3b..ecc5163 100644
--- a/packages/warp_api_ffi/pubspec.lock
+++ b/packages/warp_api_ffi/pubspec.lock
@@ -1,6 +1,20 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "30.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.7.0"
   args:
     dependency: transitive
     description:
@@ -14,7 +28,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.6.1"
+    version: "2.8.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -22,6 +36,62 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
+  build:
+    dependency: transitive
+    description:
+      name: build
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  build_config:
+    dependency: transitive
+    description:
+      name: build_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
+  build_daemon:
+    dependency: transitive
+    description:
+      name: build_daemon
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  build_resolvers:
+    dependency: transitive
+    description:
+      name: build_resolvers
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.4"
+  build_runner:
+    dependency: "direct dev"
+    description:
+      name: build_runner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
+  build_runner_core:
+    dependency: transitive
+    description:
+      name: build_runner_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "7.2.2"
+  built_collection:
+    dependency: transitive
+    description:
+      name: built_collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.1.1"
+  built_value:
+    dependency: transitive
+    description:
+      name: built_value
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "8.1.3"
   characters:
     dependency: transitive
     description:
@@ -35,7 +105,14 @@ packages:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   cli_util:
     dependency: transitive
     description:
@@ -50,6 +127,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  code_builder:
+    dependency: transitive
+    description:
+      name: code_builder
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.1.0"
   collection:
     dependency: transitive
     description:
@@ -57,6 +141,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
+  convert:
+    dependency: "direct main"
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  dart_style:
+    dependency: transitive
+    description:
+      name: dart_style
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
   fake_async:
     dependency: transitive
     description:
@@ -85,6 +190,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.2"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -95,6 +207,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  frontend_server_client:
+    dependency: transitive
+    description:
+      name: frontend_server_client
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.2"
   glob:
     dependency: transitive
     description:
@@ -102,13 +221,55 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
-  isolate:
-    dependency: "direct main"
+  graphs:
+    dependency: transitive
     description:
-      name: isolate
+      name: graphs
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.0"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.3"
+  json_annotation:
+    dependency: "direct main"
+    description:
+      name: json_annotation
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.1.0"
+  json_serializable:
+    dependency: "direct dev"
+    description:
+      name: json_serializable
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.0.2"
   logging:
     dependency: transitive
     description:
@@ -129,7 +290,21 @@ packages:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.7.0"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
   path:
     dependency: transitive
     description:
@@ -144,6 +319,34 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.11.1"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.5.0"
+  protobuf:
+    dependency: "direct main"
+    description:
+      name: protobuf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  pubspec_parse:
+    dependency: transitive
+    description:
+      name: pubspec_parse
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
   quiver:
     dependency: transitive
     description:
@@ -151,11 +354,39 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   sky_engine:
     dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.99"
+  source_gen:
+    dependency: transitive
+    description:
+      name: source_gen
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  source_helper:
+    dependency: transitive
+    description:
+      name: source_helper
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0"
   source_span:
     dependency: transitive
     description:
@@ -177,6 +408,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
+  stream_transform:
+    dependency: transitive
+    description:
+      name: stream_transform
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   string_scanner:
     dependency: transitive
     description:
@@ -197,7 +435,14 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.0"
+    version: "0.4.2"
+  timing:
+    dependency: transitive
+    description:
+      name: timing
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   typed_data:
     dependency: transitive
     description:
@@ -212,6 +457,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
   yaml:
     dependency: transitive
     description:
@@ -220,5 +479,5 @@ packages:
     source: hosted
     version: "3.1.0"
 sdks:
-  dart: ">=2.12.0 <3.0.0"
+  dart: ">=2.14.0 <3.0.0"
   flutter: ">=1.20.0"
diff --git a/packages/warp_api_ffi/pubspec.yaml b/packages/warp_api_ffi/pubspec.yaml
index f12fb66..dec04cf 100644
--- a/packages/warp_api_ffi/pubspec.yaml
+++ b/packages/warp_api_ffi/pubspec.yaml
@@ -11,11 +11,16 @@ dependencies:
   flutter:
     sdk: flutter
   ffi: 1.1.2
+  convert: ^3.0.1
+  protobuf: ^2.0.0
+  json_annotation: ^4.1.0
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
   ffigen: 2.4.2
+  build_runner: ^2.1.2
+  json_serializable: ^5.0.0
 
 ffigen:
   output: 'lib/warp_api_generated.dart'
diff --git a/pubspec.lock b/pubspec.lock
index 5d46384..465e6e0 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -315,7 +315,7 @@ packages:
       name: fl_chart
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.40.0"
+    version: "0.40.2"
   flex_color_scheme:
     dependency: "direct main"
     description:
@@ -555,6 +555,15 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "5.0.0"
+  k_chart:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: "821f81681f8ee819cd721498f7b28d290f4ebe38"
+      resolved-ref: "821f81681f8ee819cd721498f7b28d290f4ebe38"
+      url: "https://github.com/hhanh00/k_chart.git"
+    source: git
+    version: "0.4.1"
   list_utilities:
     dependency: transitive
     description:
@@ -632,6 +641,48 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
+  network_info_plus:
+    dependency: "direct main"
+    description:
+      name: network_info_plus
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
+  network_info_plus_linux:
+    dependency: transitive
+    description:
+      name: network_info_plus_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  network_info_plus_macos:
+    dependency: transitive
+    description:
+      name: network_info_plus_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  network_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: network_info_plus_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  network_info_plus_web:
+    dependency: transitive
+    description:
+      name: network_info_plus_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  network_info_plus_windows:
+    dependency: transitive
+    description:
+      name: network_info_plus_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
   nm:
     dependency: transitive
     description:
@@ -807,6 +858,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.3"
+  protobuf:
+    dependency: transitive
+    description:
+      name: protobuf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   pub_semver:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 1e5f365..1cb384a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -15,7 +15,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.0.12+179
+version: 1.1.0+184
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -45,6 +45,10 @@ dependencies:
   flex_color_scheme: ^3.0.1
   flutter_colorpicker: ^0.6.0
   fl_chart: ^0.40.0
+  k_chart:
+    git:
+      url: https://github.com/hhanh00/k_chart.git
+      ref: 821f81681f8ee819cd721498f7b28d290f4ebe38
   grouped_list: ^4.1.0
   json_annotation: ^4.1.0
   share_plus: ^2.1.4
@@ -65,6 +69,7 @@ dependencies:
   uni_links: ^0.5.1
   quick_actions: ^0.6.0
   csv: ^5.0.0
+  network_info_plus : ^2.0.2
   flutter_localizations:
     sdk: flutter
 
@@ -84,7 +89,7 @@ dev_dependencies:
   flutter_native_splash: ^1.2.3
 
 flutter_app_name:
-  name: "YWallet"
+  name: "ZWallet"
 
 flutter_icons:
   android: true
diff --git a/pubspec.yaml.tpl b/pubspec.yaml.tpl
index c6e7b84..03b8102 100644
--- a/pubspec.yaml.tpl
+++ b/pubspec.yaml.tpl
@@ -15,7 +15,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.0.12+179
+version: 1.1.0+184
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -45,6 +45,10 @@ dependencies:
   flex_color_scheme: ^3.0.1
   flutter_colorpicker: ^0.6.0
   fl_chart: ^0.40.0
+  k_chart:
+    git:
+      url: https://github.com/hhanh00/k_chart.git
+      ref: 821f81681f8ee819cd721498f7b28d290f4ebe38
   grouped_list: ^4.1.0
   json_annotation: ^4.1.0
   share_plus: ^2.1.4
@@ -65,6 +69,7 @@ dependencies:
   uni_links: ^0.5.1
   quick_actions: ^0.6.0
   csv: ^5.0.0
+  network_info_plus : ^2.0.2
   flutter_localizations:
     sdk: flutter
 
diff --git a/web/index.html b/web/index.html
index 5aae47f..2903e03 100644
--- a/web/index.html
+++ b/web/index.html
@@ -25,8 +25,9 @@
 
   <title>warp</title>
   <link rel="manifest" href="manifest.json">
+  <link rel="stylesheet" type="text/css" href="splash/style.css">
 </head>
-<body>
+<body style="position: fixed; inset: 0px; overflow: hidden; padding: 0px; margin: 0px; user-select: none; touch-action: none; font: 14px sans-serif; color: red;">
   <!-- This script installs service_worker.js to provide PWA functionality to
        application. For more information, see:
        https://developers.google.com/web/fundamentals/primers/service-workers -->
@@ -94,5 +95,10 @@
       loadMainDartJs();
     }
   </script>
+  <picture id="splash">
+    <source srcset="splash/img/light-1x.png 1x, splash/img/light-2x.png 2x, splash/img/light-3x.png 3x, splash/img/light-4x.png 4x" media="(prefers-color-scheme: light) or (prefers-color-scheme: no-preference)">
+    <source srcset="splash/img/dark-1x.png 1x, splash/img/dark-2x.png 2x, splash/img/dark-3x.png 3x, splash/img/dark-4x.png 4x" media="(prefers-color-scheme: dark)">
+    <img class="center" src="splash/img/light-1x.png" />
+  </picture>
 </body>
-</html>
+</html>
\ No newline at end of file