150 lines
6.5 KiB
JavaScript
150 lines
6.5 KiB
JavaScript
var BN = require('../lib/bn');
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var should = require('chai').should();
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var Signature = require('../lib/signature');
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describe('Signature', function() {
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it('should make a blank signature', function() {
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var sig = new Signature();
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should.exist(sig);
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});
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it('should work with conveniently setting r, s', function() {
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var r = BN();
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var s = BN();
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var sig = new Signature(r, s);
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should.exist(sig);
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sig.r.toString().should.equal(r.toString());
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sig.s.toString().should.equal(s.toString());
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});
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describe('#set', function() {
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it('should set compressed', function() {
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should.exist(Signature().set({compressed: true}));
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});
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});
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describe('#fromCompact', function() {
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it('should create a signature from a compressed signature', function() {
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var blank = new Buffer(32);
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blank.fill(0);
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var compressed = Buffer.concat([
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new Buffer([0 + 27 + 4]),
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blank,
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blank
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]);
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var sig = new Signature();
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sig.fromCompact(compressed);
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sig.r.cmp(0).should.equal(0);
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sig.s.cmp(0).should.equal(0);
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});
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});
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describe('#fromDER', function() {
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var buf = new Buffer('3044022075fc517e541bd54769c080b64397e32161c850f6c1b2b67a5c433affbb3e62770220729e85cc46ffab881065ec07694220e71d4df9b2b8c8fd12c3122cf3a5efbcf2', 'hex');
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it('should parse this DER format signature', function() {
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var sig = new Signature();
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sig.fromDER(buf);
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sig.r.toBuffer({size: 32}).toString('hex').should.equal('75fc517e541bd54769c080b64397e32161c850f6c1b2b67a5c433affbb3e6277');
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sig.s.toBuffer({size: 32}).toString('hex').should.equal('729e85cc46ffab881065ec07694220e71d4df9b2b8c8fd12c3122cf3a5efbcf2');
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});
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});
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describe('#fromString', function() {
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var buf = new Buffer('3044022075fc517e541bd54769c080b64397e32161c850f6c1b2b67a5c433affbb3e62770220729e85cc46ffab881065ec07694220e71d4df9b2b8c8fd12c3122cf3a5efbcf2', 'hex');
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it('should parse this DER format signature in hex', function() {
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var sig = new Signature();
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sig.fromString(buf.toString('hex'));
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sig.r.toBuffer({size: 32}).toString('hex').should.equal('75fc517e541bd54769c080b64397e32161c850f6c1b2b67a5c433affbb3e6277');
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sig.s.toBuffer({size: 32}).toString('hex').should.equal('729e85cc46ffab881065ec07694220e71d4df9b2b8c8fd12c3122cf3a5efbcf2');
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});
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});
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describe('#parseDER', function() {
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it('should parse this signature generated in node', function() {
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var sighex = '30450221008bab1f0a2ff2f9cb8992173d8ad73c229d31ea8e10b0f4d4ae1a0d8ed76021fa02200993a6ec81755b9111762fc2cf8e3ede73047515622792110867d12654275e72';
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var sig = new Buffer(sighex, 'hex');
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var parsed = Signature.parseDER(sig);
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parsed.header.should.equal(0x30)
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parsed.length.should.equal(69)
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parsed.rlength.should.equal(33);
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parsed.rneg.should.equal(true);
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parsed.rbuf.toString('hex').should.equal('008bab1f0a2ff2f9cb8992173d8ad73c229d31ea8e10b0f4d4ae1a0d8ed76021fa');
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parsed.r.toString().should.equal('63173831029936981022572627018246571655303050627048489594159321588908385378810');
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parsed.slength.should.equal(32);
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parsed.sneg.should.equal(false);
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parsed.sbuf.toString('hex').should.equal('0993a6ec81755b9111762fc2cf8e3ede73047515622792110867d12654275e72');
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parsed.s.toString().should.equal('4331694221846364448463828256391194279133231453999942381442030409253074198130');
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});
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it('should parse this 69 byte signature', function() {
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var sighex = '3043021f59e4705959cc78acbfcf8bd0114e9cc1b389a4287fb33152b73a38c319b50302202f7428a27284c757e409bf41506183e9e49dfb54d5063796dfa0d403a4deccfa';
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var sig = new Buffer(sighex, 'hex');
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var parsed = Signature.parseDER(sig);
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parsed.header.should.equal(0x30)
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parsed.length.should.equal(67)
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parsed.rlength.should.equal(31);
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parsed.rneg.should.equal(false);
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parsed.rbuf.toString('hex').should.equal('59e4705959cc78acbfcf8bd0114e9cc1b389a4287fb33152b73a38c319b503');
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parsed.r.toString().should.equal('158826015856106182499128681792325160381907915189052224498209222621383996675');
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parsed.slength.should.equal(32);
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parsed.sneg.should.equal(false);
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parsed.sbuf.toString('hex').should.equal('2f7428a27284c757e409bf41506183e9e49dfb54d5063796dfa0d403a4deccfa');
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parsed.s.toString().should.equal('21463938592353267769710297084836796652964571266930856168996063301532842380538');
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});
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it('should parse this 68 byte signature', function() {
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var sighex = '3042021e17cfe77536c3fb0526bd1a72d7a8e0973f463add210be14063c8a9c37632022061bfa677f825ded82ba0863fb0c46ca1388dd3e647f6a93c038168b59d131a51';
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var sig = new Buffer(sighex, 'hex');
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var parsed = Signature.parseDER(sig);
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parsed.header.should.equal(0x30)
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parsed.length.should.equal(66)
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parsed.rlength.should.equal(30);
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parsed.rneg.should.equal(false);
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parsed.rbuf.toString('hex').should.equal('17cfe77536c3fb0526bd1a72d7a8e0973f463add210be14063c8a9c37632');
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parsed.r.toString().should.equal('164345250294671732127776123343329699648286106708464198588053542748255794');
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parsed.slength.should.equal(32);
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parsed.sneg.should.equal(false);
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parsed.sbuf.toString('hex').should.equal('61bfa677f825ded82ba0863fb0c46ca1388dd3e647f6a93c038168b59d131a51');
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parsed.s.toString().should.equal('44212963026209759051804639008236126356702363229859210154760104982946304432721');
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});
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});
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describe('#toDER', function() {
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it('should convert these known r and s values into a known signature', function() {
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var r = BN('63173831029936981022572627018246571655303050627048489594159321588908385378810');
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var s = BN('4331694221846364448463828256391194279133231453999942381442030409253074198130');
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var sig = new Signature({r: r, s: s});
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var der = sig.toDER(r, s);
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der.toString('hex').should.equal('30450221008bab1f0a2ff2f9cb8992173d8ad73c229d31ea8e10b0f4d4ae1a0d8ed76021fa02200993a6ec81755b9111762fc2cf8e3ede73047515622792110867d12654275e72');
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});
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});
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describe('#toString', function() {
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it('should convert this signature in to hex DER', function() {
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var r = BN('63173831029936981022572627018246571655303050627048489594159321588908385378810');
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var s = BN('4331694221846364448463828256391194279133231453999942381442030409253074198130');
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var sig = new Signature({r: r, s: s});
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var hex = sig.toString();
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hex.should.equal('30450221008bab1f0a2ff2f9cb8992173d8ad73c229d31ea8e10b0f4d4ae1a0d8ed76021fa02200993a6ec81755b9111762fc2cf8e3ede73047515622792110867d12654275e72');
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});
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});
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});
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