ba692aaa20
Generating random numbers properly depends on the platform. The new getRandomBuffer method does the right thing on the right platform. It will sometimes fail due to insufficient entropy. The getPseudoRandomBuffer class is also provided that will never fail, but it is not cryptographically secure and should not be used for keys.
58 lines
1.6 KiB
JavaScript
58 lines
1.6 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 should = chai.should();
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var assert = chai.assert;
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var SecureRandom = bitcore.SecureRandom;
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describe('SecureRandom', function() {
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describe('getRandomBuffer', function() {
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it('should return a buffer', function() {
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var bytes = SecureRandom.getRandomBuffer(8);
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bytes.length.should.equal(8);
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Buffer.isBuffer(bytes).should.equal(true);
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});
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it('should not equate two 256 bit random buffers', function() {
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var bytes1 = SecureRandom.getRandomBuffer(32);
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var bytes2 = SecureRandom.getRandomBuffer(32);
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bytes1.toString('hex').should.not.equal(bytes2.toString('hex'));
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});
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});
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describe('getPseudoRandomBuffer', function() {
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it('should generate 7 random bytes', function() {
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var buf = SecureRandom.getPseudoRandomBuffer(7);
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buf.length.should.equal(7);
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});
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it('should generate 8 random bytes', function() {
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var buf = SecureRandom.getPseudoRandomBuffer(8);
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buf.length.should.equal(8);
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});
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it('should generate 9 random bytes', function() {
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var buf = SecureRandom.getPseudoRandomBuffer(9);
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buf.length.should.equal(9);
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});
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it('should generate 90 random bytes', function() {
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var buf = SecureRandom.getPseudoRandomBuffer(90);
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buf.length.should.equal(90);
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});
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it('should generate two 8 byte buffers that are not equal', function() {
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var buf1 = SecureRandom.getPseudoRandomBuffer(8);
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var buf2 = SecureRandom.getPseudoRandomBuffer(8);
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buf1.toString('hex').should.not.equal(buf2.toString('hex'));
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});
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});
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});
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