43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
var assert = require('assert')
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var sec = require('..').sec
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var ecparams = sec('secp256k1')
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var BigInteger = require('bigi')
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var ECPointFp = require('..').ECPointFp
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describe('ec', function() {
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describe('ECPointFp', function() {
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it('behaves correctly', function() {
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var G = ecparams.getG()
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var n = ecparams.getN()
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assert.ok(G.multiply(n).isInfinity(), "Gn is infinite")
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var k = BigInteger.ONE
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var P = G.multiply(k)
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assert.ok(!P.isInfinity(), "kG is not infinite")
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assert.ok(P.isOnCurve(), "kG on curve")
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assert.ok(P.multiply(n).isInfinity(), "kGn is infinite")
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assert.ok(P.validate(), "kG validates as a public key")
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})
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})
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describe('decodeFrom', function() {
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it('decodes compressed ECPoints', function() {
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var s = new Buffer('02789ece95adf35fb3de994b8b16c90166736d70913a18378fff79503e8c5db7fb', 'hex')
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var Q = ECPointFp.decodeFrom(ecparams.getCurve(), s)
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assert.ok(Q)
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assert.ok(Q.validate())
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})
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it('decodes uncompressed ECPoints', function() {
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var s = new Buffer('0486f356006a38b847bedec1bf47013776925d939d5a35a97a4d1263e550c7f1ab5aba44ab74d22892097a0e851addf07ba97e33416df5affaceeb35d5607cd23c', 'hex')
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var Q = ECPointFp.decodeFrom(ecparams.getCurve(), s)
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assert.ok(Q)
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assert.ok(Q.validate())
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})
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})
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})
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