659dc10f96
This adds a new Message class with static methods for signing and verifying a message the same way as bitcoind. (In a nutshell, messages a prepended with "Bitcoin Signed Message:" before being hashed and signed). There is one important piece missing ... verifying a signature with an address, and not a public key. I have not yet implemented this because the cryptography interface of bitcore does not allow me to derive the public key from a signature. This will need to be added before verifying from an address is possible.
58 lines
1.8 KiB
JavaScript
58 lines
1.8 KiB
JavaScript
'use strict';
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var chai = chai || require('chai');
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var should = chai.should();
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var bitcore = bitcore || require('../bitcore');
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var Message = bitcore.Message;
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var coinUtil = bitcore.util;
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describe('Message', function() {
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describe('sign', function() {
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it('should return a signature', function() {
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var key = bitcore.Key.generateSync();
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var sig = Message.sign('my message', key);
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sig.length.should.be.greaterThan(0);
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});
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});
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describe('verifyWithPubKey', function() {
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it('should verify a signed message', function() {
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var message = 'my message';
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var key = bitcore.Key.generateSync();
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var sig = Message.sign(message, key);
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Message.verifyWithPubKey(key.public, message, sig).should.equal(true);
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});
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});
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describe('magicBytes', function() {
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it('should be "Bitcoin Signed Message:\\n"', function() {
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Message.magicBytes.toString().should.equal('Bitcoin Signed Message:\n');
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});
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});
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describe('magicHash', function() {
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it('should hash the message with the magic bytes', function() {
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var str = 'my message';
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var magicBytes = Message.magicBytes;
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var prefix1 = coinUtil.varIntBuf(magicBytes.length);
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var message = new Buffer(str);
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var prefix2 = coinUtil.varIntBuf(message.length);
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var buf = Buffer.concat([prefix1, magicBytes, prefix2, message]);
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var hash = coinUtil.twoSha256(buf);
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var hash2 = Message.magicHash(str);
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hash.toString().should.equal(hash2.toString());
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});
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it('should hash this message the same way as bitcoinjs-lib', function() {
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var hashHex = '74eacdc6c04724869380907bf4aab561a1494a4a800fba266b29b8158c2c4cec';
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var str = 'this is a test message';
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hashHex.should.equal(Message.magicHash(str).toString('hex'));
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});
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});
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});
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