Hash algorithms for signing and txId

This fixes the "invalid signature" problem when submitting
proposals to the peer. Turns out the peers are now using SHA3 256
which is a recent change.

In addition, the txID calculation always uses SHA2 256 so the code
around that must be changed to not be determined by the config
setting but instead always use SHA2 256.

Change-Id: I3538e1e388fb7d0a184e508c5792c659ecf91847
Signed-off-by: Jim Zhang <jzhang@us.ibm.com>

fabric-client/config/default.json

@@ -1,7 +1,7 @@
 { 
 	"request-timeout" : 3000,
 	"tcert-batch-size" : 10,
-	"crypto-hash-algo": "SHA2",
+	"crypto-hash-algo": "SHA3",
 	"crypto-keysize": 256,
 	"crypto-hsm": false,
 	"crypto-suite-software": {

fabric-client/lib/Chain.js

@@ -29,6 +29,7 @@ var Orderer = require('./Orderer.js');
 var settle = require('promise-settle');
 var grpc = require('grpc');
 var logger = utils.getLogger('Chain.js');
+var hashPrimitives = require('./hash.js');
 
 var _ccProto = grpc.load(__dirname + '/protos/peer/chaincode.proto').protos;
 var _transProto = grpc.load(__dirname + '/protos/peer/transaction.proto').protos;
@@ -1616,7 +1617,7 @@ var Chain = class {
 		var creator_bytes = userContext.getIdentity().serialize();//same as signatureHeader.Creator
 		var nonce_bytes = nonce;//nonce is already in bytes
 		var trans_bytes = Buffer.concat([nonce_bytes, creator_bytes]);
-		var trans_hash = this.cryptoPrimitives.hash(trans_bytes);
+		var trans_hash = hashPrimitives.sha2_256(trans_bytes);
 		var transaction_id = Buffer.from(trans_hash).toString();
 		logger.debug('buildTransactionID - transaction_id %s',transaction_id);
 		return transaction_id;

test/unit/cryptosuite-ecdsa-aes.js

@@ -265,11 +265,11 @@ test('\n\n ** CryptoSuite_ECDSA_AES - function tests **\n\n', function (t) {
 	t.equal(true, (typeof cryptoUtils._ecdsaCurve !== 'undefined' && typeof cryptoUtils._ecdsa !== 'undefined'),
 		'CryptoSuite_ECDSA_AES function tests: default instance has "_ecdsaCurve" and "_ecdsa" properties');
 
-	// test default curve 256 with SHA256
-	t.equal(cryptoUtils.hash(TEST_MSG), HASH_MSG_SHA256,
+	// test default curve 256 with SHA3_256
+	t.equal(cryptoUtils.hash(TEST_MSG), HASH_MSG_SHA3_256,
 		'CryptoSuite_ECDSA_AES function tests: using "SHA2" hashing algorithm with default key size which should be 256');
 
-	t.equal(cryptoUtils.hash(TEST_LONG_MSG), HASH_LONG_MSG_SHA256,
+	t.equal(cryptoUtils.hash(TEST_LONG_MSG), HASH_LONG_MSG_SHA3_256,
 		'CryptoSuite_ECDSA_AES function tests: using "SHA2" hashing algorithm with default key size which should be 256');
 
 	// test SHA384 hash
@@ -288,8 +288,8 @@ test('\n\n ** CryptoSuite_ECDSA_AES - function tests **\n\n', function (t) {
 		t.equal('secp256r1', key.getPublicKey()._key.curveName,
 			'CryptoSuite_ECDSA_AES function tests: cryptoUtils generated public key curveName == secp256r1');
 
-		// test curve 256 with SHA3_256
-		utils.setConfigSetting('crypto-hash-algo', 'SHA3');
+		// test curve 256 with SHA2_256
+		utils.setConfigSetting('crypto-hash-algo', 'SHA2');
 		utils.setConfigSetting('crypto-keysize', 256);
 		cryptoUtils = utils.getCryptoSuite();
 		return cryptoUtils.generateKey();
@@ -298,13 +298,14 @@ test('\n\n ** CryptoSuite_ECDSA_AES - function tests **\n\n', function (t) {
 		t.equal('secp256r1', key.getPublicKey()._key.curveName,
 			'CryptoSuite_ECDSA_AES function tests: ccryptoUtils generated public key curveName == secp256r1');
 
-		t.equal(cryptoUtils.hash(TEST_MSG), HASH_MSG_SHA3_256,
+		t.equal(cryptoUtils.hash(TEST_MSG), HASH_MSG_SHA256,
 			'CryptoSuite_ECDSA_AES function tests: using "SHA3" hashing algorithm with key size 256');
 
-		t.equal(cryptoUtils.hash(TEST_LONG_MSG), HASH_LONG_MSG_SHA3_256,
+		t.equal(cryptoUtils.hash(TEST_LONG_MSG), HASH_LONG_MSG_SHA256,
 			'CryptoSuite_ECDSA_AES function tests: using "SHA3" hashing algorithm with key size 256');
 
 		// test SHA3_384
+		utils.setConfigSetting('crypto-hash-algo', 'SHA3');
 		utils.setConfigSetting('crypto-keysize', 384);
 		cryptoUtils = utils.getCryptoSuite();