Update ed25519-zebra to 0.3

Cargo.lock

@@ -428,9 +428,9 @@ checksum = "4358a9e11b9a09cf52383b451b49a169e8d797b68aa02301ff586d70d9661ea3"
 
 [[package]]
 name = "ed25519-zebra"
-version = "0.2.3"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1a8b1ce4012933385e8a820355e972bcfb8ee55993cd63e70d47a085298020b"
+checksum = "802a065ae2171664a2bf607c0571d21c267a0ad2c6c8dad4a5668f09bf34f661"
 dependencies = [
  "curve25519-dalek",
  "hex",

zebra-chain/Cargo.toml

@@ -25,10 +25,10 @@ serde = { version = "1", features = ["serde_derive", "rc"] }
 sha2 = { version = "0.8.2", features=["compress"] }
 thiserror = "1"
 x25519-dalek = { version = "0.6", features = ["serde"] }
-# ZF deps
-ed25519-zebra = "0.2"
-redjubjub = "0.1"
 serde-big-array = "0.3.0"
+# ZF deps
+ed25519-zebra = "0.3"
+redjubjub = "0.1"
 
 [dev-dependencies]
 proptest = "0.10"

zebra-chain/src/transaction/joinsplit.rs

@@ -146,7 +146,7 @@ pub struct JoinSplitData<P: ZkSnarkProof> {
     ))]
     pub rest: Vec<JoinSplit<P>>,
     /// The public key for the JoinSplit signature.
-    pub pub_key: ed25519_zebra::PublicKeyBytes,
+    pub pub_key: ed25519_zebra::VerificationKeyBytes,
     /// The JoinSplit signature.
     pub sig: ed25519_zebra::Signature,
 }
@@ -172,7 +172,7 @@ impl<P: ZkSnarkProof + Arbitrary + 'static> Arbitrary for JoinSplitData<P> {
             .prop_map(|(first, rest, pub_key_bytes, sig_bytes)| Self {
                 first,
                 rest,
-                pub_key: ed25519_zebra::PublicKeyBytes::from(pub_key_bytes),
+                pub_key: ed25519_zebra::VerificationKeyBytes::from(pub_key_bytes),
                 sig: ed25519_zebra::Signature::from({
                     let mut b = [0u8; 64];
                     b.copy_from_slice(sig_bytes.as_slice());