72 lines
3.2 KiB
JavaScript
72 lines
3.2 KiB
JavaScript
'use strict';
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var chai = chai || require('chai');
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var bitcore = bitcore || require('../bitcore');
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var coinUtil = coinUtil || bitcore.util;
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var buffertools = require('buffertools');
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var bignum = bitcore.Bignum;
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var should = chai.should();
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var assert = chai.assert;
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var Point = bitcore.Point;
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var Key = bitcore.Key;
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describe('Point', function() {
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it('should initialize the main object', function() {
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should.exist(Point);
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});
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it('should be able to create instance', function() {
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var p = new Point();
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should.exist(p);
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});
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it('should add these two points correctly', function() {
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//these points are from one of the BIP32 test vectors
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var axhex = "69b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
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var ayhex = "eeedc91342b3c8982c1e676435780fe5f9d62f3f692e8d1512485d77fab35997";
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var a = new Point(bignum.fromBuffer((new Buffer(axhex, 'hex')), {size: 32}), bignum.fromBuffer((new Buffer(ayhex, 'hex')), {size: 32}));
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var bxhex = "5a784662a4a20a65bf6aab9ae98a6c068a81c52e4b032c0fb5400c706cfccc56";
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var byhex = "7f717885be239daadce76b568958305183ad616ff74ed4dc219a74c26d35f839";
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var b = new Point(bignum.fromBuffer((new Buffer(bxhex, 'hex')), {size: 32}), bignum.fromBuffer((new Buffer(byhex, 'hex')), {size: 32}));
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var sxhex = "501e454bf00751f24b1b489aa925215d66af2234e3891c3b21a52bedb3cd711c";
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var syhex = "008794c1df8131b9ad1e1359965b3f3ee2feef0866be693729772be14be881ab";
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var s = new Point(bignum.fromBuffer((new Buffer(sxhex, 'hex')), {size: 32}), bignum.fromBuffer((new Buffer(syhex, 'hex')), {size: 32}));
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var sum = Point.add(a, b);
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s.x.toBuffer({size: 32}).toString('hex').should.equal(sum.x.toBuffer({size: 32}).toString('hex'));
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s.y.toBuffer({size: 32}).toString('hex').should.equal(sum.y.toBuffer({size: 32}).toString('hex'));
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});
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it('should convert a Point into the public key of a Key', function() {
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var axhex = "69b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
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var axbuf = new Buffer(axhex, 'hex');
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var ayhex = "eeedc91342b3c8982c1e676435780fe5f9d62f3f692e8d1512485d77fab35997";
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var aybuf = new Buffer(ayhex, 'hex');
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var a = new Point(bignum.fromBuffer(axbuf, {size: 32}), bignum.fromBuffer(aybuf, {size: 32}));
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var pubKeyBufCompressedHex = "0369b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
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var key = new Key();
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key.public = new Buffer(pubKeyBufCompressedHex, 'hex');
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key.compressed = false;
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key.public.toString('hex').should.equal(a.toUncompressedPubKey().toString('hex'));
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});
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it('should convert the public key of a Key into a Point', function() {
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var axhex = "69b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
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var ayhex = "eeedc91342b3c8982c1e676435780fe5f9d62f3f692e8d1512485d77fab35997";
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var pubKeyBufCompressedHex = "0369b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
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var key = new Key();
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key.public = new Buffer(pubKeyBufCompressedHex, 'hex');
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key.compressed = false;
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var point = Point.fromUncompressedPubKey(key.public);
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point.x.toBuffer({size: 32}).toString('hex').should.equal(axhex);
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point.y.toBuffer({size: 32}).toString('hex').should.equal(ayhex);
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});
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});
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