diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index d4d972b2b..4ee910251 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -9,13 +9,13 @@ TEST_SRCDIR = test
 TEST_BINARY=test/test_bitcoin$(EXEEXT)
 
 JSON_TEST_FILES = \
-  test/data/script_tests.json \
-  test/data/base58_keys_valid.json \
   test/data/base58_encode_decode.json \
-  test/data/base58_keys_invalid.json \
+  test/data/key_io_valid.json \
+  test/data/key_io_invalid.json \
+  test/data/script_tests.json \
+  test/data/sighash.json \
   test/data/tx_invalid.json \
-  test/data/tx_valid.json \
-  test/data/sighash.json
+  test/data/tx_valid.json
 
 RAW_TEST_FILES =
 
@@ -45,6 +45,7 @@ BITCOIN_TESTS =\
   test/DoS_tests.cpp \
   test/getarg_tests.cpp \
   test/hash_tests.cpp \
+  test/key_io_tests.cpp \
   test/key_tests.cpp \
   test/limitedmap_tests.cpp \
   test/dbwrapper_tests.cpp \
diff --git a/src/test/base58_tests.cpp b/src/test/base58_tests.cpp
index 63885a7af..f90d4f90c 100644
--- a/src/test/base58_tests.cpp
+++ b/src/test/base58_tests.cpp
@@ -2,18 +2,10 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include <base58.h>
-
 #include <test/data/base58_encode_decode.json.h>
-#include <test/data/base58_keys_invalid.json.h>
-#include <test/data/base58_keys_valid.json.h>
 
-#include <key.h>
-#include <key_io.h>
-#include <script/script.h>
+#include <base58.h>
 #include <test/test_bitcoin.h>
-#include <uint256.h>
-#include <util.h>
 #include <utilstrencodings.h>
 
 #include <univalue.h>
@@ -74,132 +66,4 @@ BOOST_AUTO_TEST_CASE(base58_DecodeBase58)
     BOOST_CHECK_EQUAL_COLLECTIONS(result.begin(), result.end(), expected.begin(), expected.end());
 }
 
-// Goal: check that parsed keys match test payload
-BOOST_AUTO_TEST_CASE(base58_keys_valid_parse)
-{
-    UniValue tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
-    CKey privkey;
-    CTxDestination destination;
-    SelectParams(CBaseChainParams::MAIN);
-
-    for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        UniValue test = tests[idx];
-        std::string strTest = test.write();
-        if (test.size() < 3) { // Allow for extra stuff (useful for comments)
-            BOOST_ERROR("Bad test: " << strTest);
-            continue;
-        }
-        std::string exp_base58string = test[0].get_str();
-        std::vector<unsigned char> exp_payload = ParseHex(test[1].get_str());
-        const UniValue &metadata = test[2].get_obj();
-        bool isPrivkey = find_value(metadata, "isPrivkey").get_bool();
-        SelectParams(find_value(metadata, "chain").get_str());
-        bool try_case_flip = find_value(metadata, "tryCaseFlip").isNull() ? false : find_value(metadata, "tryCaseFlip").get_bool();
-        if (isPrivkey) {
-            bool isCompressed = find_value(metadata, "isCompressed").get_bool();
-            // Must be valid private key
-            privkey = DecodeSecret(exp_base58string);
-            BOOST_CHECK_MESSAGE(privkey.IsValid(), "!IsValid:" + strTest);
-            BOOST_CHECK_MESSAGE(privkey.IsCompressed() == isCompressed, "compressed mismatch:" + strTest);
-            BOOST_CHECK_MESSAGE(privkey.size() == exp_payload.size() && std::equal(privkey.begin(), privkey.end(), exp_payload.begin()), "key mismatch:" + strTest);
-
-            // Private key must be invalid public key
-            destination = DecodeDestination(exp_base58string);
-            BOOST_CHECK_MESSAGE(!IsValidDestination(destination), "IsValid privkey as pubkey:" + strTest);
-        } else {
-            // Must be valid public key
-            destination = DecodeDestination(exp_base58string);
-            CScript script = GetScriptForDestination(destination);
-            BOOST_CHECK_MESSAGE(IsValidDestination(destination), "!IsValid:" + strTest);
-            BOOST_CHECK_EQUAL(HexStr(script), HexStr(exp_payload));
-
-            // Try flipped case version
-            for (char& c : exp_base58string) {
-                if (c >= 'a' && c <= 'z') {
-                    c = (c - 'a') + 'A';
-                } else if (c >= 'A' && c <= 'Z') {
-                    c = (c - 'A') + 'a';
-                }
-            }
-            destination = DecodeDestination(exp_base58string);
-            BOOST_CHECK_MESSAGE(IsValidDestination(destination) == try_case_flip, "!IsValid case flipped:" + strTest);
-            if (IsValidDestination(destination)) {
-                script = GetScriptForDestination(destination);
-                BOOST_CHECK_EQUAL(HexStr(script), HexStr(exp_payload));
-            }
-
-            // Public key must be invalid private key
-            privkey = DecodeSecret(exp_base58string);
-            BOOST_CHECK_MESSAGE(!privkey.IsValid(), "IsValid pubkey as privkey:" + strTest);
-        }
-    }
-}
-
-// Goal: check that generated keys match test vectors
-BOOST_AUTO_TEST_CASE(base58_keys_valid_gen)
-{
-    UniValue tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
-
-    for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        UniValue test = tests[idx];
-        std::string strTest = test.write();
-        if (test.size() < 3) // Allow for extra stuff (useful for comments)
-        {
-            BOOST_ERROR("Bad test: " << strTest);
-            continue;
-        }
-        std::string exp_base58string = test[0].get_str();
-        std::vector<unsigned char> exp_payload = ParseHex(test[1].get_str());
-        const UniValue &metadata = test[2].get_obj();
-        bool isPrivkey = find_value(metadata, "isPrivkey").get_bool();
-        SelectParams(find_value(metadata, "chain").get_str());
-        if (isPrivkey) {
-            bool isCompressed = find_value(metadata, "isCompressed").get_bool();
-            CKey key;
-            key.Set(exp_payload.begin(), exp_payload.end(), isCompressed);
-            assert(key.IsValid());
-            BOOST_CHECK_MESSAGE(EncodeSecret(key) == exp_base58string, "result mismatch: " + strTest);
-        } else {
-            CTxDestination dest;
-            CScript exp_script(exp_payload.begin(), exp_payload.end());
-            ExtractDestination(exp_script, dest);
-            std::string address = EncodeDestination(dest);
-
-            BOOST_CHECK_EQUAL(address, exp_base58string);
-        }
-    }
-
-    SelectParams(CBaseChainParams::MAIN);
-}
-
-
-// Goal: check that base58 parsing code is robust against a variety of corrupted data
-BOOST_AUTO_TEST_CASE(base58_keys_invalid)
-{
-    UniValue tests = read_json(std::string(json_tests::base58_keys_invalid, json_tests::base58_keys_invalid + sizeof(json_tests::base58_keys_invalid))); // Negative testcases
-    CKey privkey;
-    CTxDestination destination;
-
-    for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        UniValue test = tests[idx];
-        std::string strTest = test.write();
-        if (test.size() < 1) // Allow for extra stuff (useful for comments)
-        {
-            BOOST_ERROR("Bad test: " << strTest);
-            continue;
-        }
-        std::string exp_base58string = test[0].get_str();
-
-        // must be invalid as public and as private key
-        for (auto chain : { CBaseChainParams::MAIN, CBaseChainParams::TESTNET, CBaseChainParams::REGTEST }) {
-            SelectParams(chain);
-            destination = DecodeDestination(exp_base58string);
-            BOOST_CHECK_MESSAGE(!IsValidDestination(destination), "IsValid pubkey in mainnet:" + strTest);
-            privkey = DecodeSecret(exp_base58string);
-            BOOST_CHECK_MESSAGE(!privkey.IsValid(), "IsValid privkey in mainnet:" + strTest);
-        }
-    }
-}
-
-
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/data/base58_keys_invalid.json b/src/test/data/key_io_invalid.json
similarity index 100%
rename from src/test/data/base58_keys_invalid.json
rename to src/test/data/key_io_invalid.json
diff --git a/src/test/data/base58_keys_valid.json b/src/test/data/key_io_valid.json
similarity index 100%
rename from src/test/data/base58_keys_valid.json
rename to src/test/data/key_io_valid.json
diff --git a/src/test/key_io_tests.cpp b/src/test/key_io_tests.cpp
new file mode 100644
index 000000000..1ac1e0015
--- /dev/null
+++ b/src/test/key_io_tests.cpp
@@ -0,0 +1,149 @@
+// Copyright (c) 2011-2016 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <test/data/key_io_invalid.json.h>
+#include <test/data/key_io_valid.json.h>
+
+#include <key.h>
+#include <key_io.h>
+#include <script/script.h>
+#include <utilstrencodings.h>
+#include <test/test_bitcoin.h>
+
+#include <boost/test/unit_test.hpp>
+
+#include <univalue.h>
+
+extern UniValue read_json(const std::string& jsondata);
+
+BOOST_FIXTURE_TEST_SUITE(key_io_tests, BasicTestingSetup)
+
+// Goal: check that parsed keys match test payload
+BOOST_AUTO_TEST_CASE(key_io_valid_parse)
+{
+    UniValue tests = read_json(std::string(json_tests::key_io_valid, json_tests::key_io_valid + sizeof(json_tests::key_io_valid)));
+    CKey privkey;
+    CTxDestination destination;
+    SelectParams(CBaseChainParams::MAIN);
+
+    for (unsigned int idx = 0; idx < tests.size(); idx++) {
+        UniValue test = tests[idx];
+        std::string strTest = test.write();
+        if (test.size() < 3) { // Allow for extra stuff (useful for comments)
+            BOOST_ERROR("Bad test: " << strTest);
+            continue;
+        }
+        std::string exp_base58string = test[0].get_str();
+        std::vector<unsigned char> exp_payload = ParseHex(test[1].get_str());
+        const UniValue &metadata = test[2].get_obj();
+        bool isPrivkey = find_value(metadata, "isPrivkey").get_bool();
+        SelectParams(find_value(metadata, "chain").get_str());
+        bool try_case_flip = find_value(metadata, "tryCaseFlip").isNull() ? false : find_value(metadata, "tryCaseFlip").get_bool();
+        if (isPrivkey) {
+            bool isCompressed = find_value(metadata, "isCompressed").get_bool();
+            // Must be valid private key
+            privkey = DecodeSecret(exp_base58string);
+            BOOST_CHECK_MESSAGE(privkey.IsValid(), "!IsValid:" + strTest);
+            BOOST_CHECK_MESSAGE(privkey.IsCompressed() == isCompressed, "compressed mismatch:" + strTest);
+            BOOST_CHECK_MESSAGE(privkey.size() == exp_payload.size() && std::equal(privkey.begin(), privkey.end(), exp_payload.begin()), "key mismatch:" + strTest);
+
+            // Private key must be invalid public key
+            destination = DecodeDestination(exp_base58string);
+            BOOST_CHECK_MESSAGE(!IsValidDestination(destination), "IsValid privkey as pubkey:" + strTest);
+        } else {
+            // Must be valid public key
+            destination = DecodeDestination(exp_base58string);
+            CScript script = GetScriptForDestination(destination);
+            BOOST_CHECK_MESSAGE(IsValidDestination(destination), "!IsValid:" + strTest);
+            BOOST_CHECK_EQUAL(HexStr(script), HexStr(exp_payload));
+
+            // Try flipped case version
+            for (char& c : exp_base58string) {
+                if (c >= 'a' && c <= 'z') {
+                    c = (c - 'a') + 'A';
+                } else if (c >= 'A' && c <= 'Z') {
+                    c = (c - 'A') + 'a';
+                }
+            }
+            destination = DecodeDestination(exp_base58string);
+            BOOST_CHECK_MESSAGE(IsValidDestination(destination) == try_case_flip, "!IsValid case flipped:" + strTest);
+            if (IsValidDestination(destination)) {
+                script = GetScriptForDestination(destination);
+                BOOST_CHECK_EQUAL(HexStr(script), HexStr(exp_payload));
+            }
+
+            // Public key must be invalid private key
+            privkey = DecodeSecret(exp_base58string);
+            BOOST_CHECK_MESSAGE(!privkey.IsValid(), "IsValid pubkey as privkey:" + strTest);
+        }
+    }
+}
+
+// Goal: check that generated keys match test vectors
+BOOST_AUTO_TEST_CASE(key_io_valid_gen)
+{
+    UniValue tests = read_json(std::string(json_tests::key_io_valid, json_tests::key_io_valid + sizeof(json_tests::key_io_valid)));
+
+    for (unsigned int idx = 0; idx < tests.size(); idx++) {
+        UniValue test = tests[idx];
+        std::string strTest = test.write();
+        if (test.size() < 3) // Allow for extra stuff (useful for comments)
+        {
+            BOOST_ERROR("Bad test: " << strTest);
+            continue;
+        }
+        std::string exp_base58string = test[0].get_str();
+        std::vector<unsigned char> exp_payload = ParseHex(test[1].get_str());
+        const UniValue &metadata = test[2].get_obj();
+        bool isPrivkey = find_value(metadata, "isPrivkey").get_bool();
+        SelectParams(find_value(metadata, "chain").get_str());
+        if (isPrivkey) {
+            bool isCompressed = find_value(metadata, "isCompressed").get_bool();
+            CKey key;
+            key.Set(exp_payload.begin(), exp_payload.end(), isCompressed);
+            assert(key.IsValid());
+            BOOST_CHECK_MESSAGE(EncodeSecret(key) == exp_base58string, "result mismatch: " + strTest);
+        } else {
+            CTxDestination dest;
+            CScript exp_script(exp_payload.begin(), exp_payload.end());
+            ExtractDestination(exp_script, dest);
+            std::string address = EncodeDestination(dest);
+
+            BOOST_CHECK_EQUAL(address, exp_base58string);
+        }
+    }
+
+    SelectParams(CBaseChainParams::MAIN);
+}
+
+
+// Goal: check that base58 parsing code is robust against a variety of corrupted data
+BOOST_AUTO_TEST_CASE(key_io_invalid)
+{
+    UniValue tests = read_json(std::string(json_tests::key_io_invalid, json_tests::key_io_invalid + sizeof(json_tests::key_io_invalid))); // Negative testcases
+    CKey privkey;
+    CTxDestination destination;
+
+    for (unsigned int idx = 0; idx < tests.size(); idx++) {
+        UniValue test = tests[idx];
+        std::string strTest = test.write();
+        if (test.size() < 1) // Allow for extra stuff (useful for comments)
+        {
+            BOOST_ERROR("Bad test: " << strTest);
+            continue;
+        }
+        std::string exp_base58string = test[0].get_str();
+
+        // must be invalid as public and as private key
+        for (auto chain : { CBaseChainParams::MAIN, CBaseChainParams::TESTNET, CBaseChainParams::REGTEST }) {
+            SelectParams(chain);
+            destination = DecodeDestination(exp_base58string);
+            BOOST_CHECK_MESSAGE(!IsValidDestination(destination), "IsValid pubkey in mainnet:" + strTest);
+            privkey = DecodeSecret(exp_base58string);
+            BOOST_CHECK_MESSAGE(!privkey.IsValid(), "IsValid privkey in mainnet:" + strTest);
+        }
+    }
+}
+
+BOOST_AUTO_TEST_SUITE_END()