86 lines
2.5 KiB
JavaScript
86 lines
2.5 KiB
JavaScript
var should = require('chai').should();
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var Hash = require('../lib/hash');
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var AES = require('../lib/expmt/aes');
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describe('AES', function() {
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var m128 = Hash.sha256(new Buffer('test1')).slice(0, 128 / 8);
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var k128 = Hash.sha256(new Buffer('test2')).slice(0, 128 / 8);
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var k192 = Hash.sha256(new Buffer('test2')).slice(0, 192 / 8);
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var k256 = Hash.sha256(new Buffer('test2')).slice(0, 256 / 8);
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var e128 = new Buffer('3477e13884125038f4dc24e9d2cfbbc7', 'hex');
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var e192 = new Buffer('b670954c0e2da1aaa5f9063de04eb961', 'hex');
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var e256 = new Buffer('dd2ce24581183a4a7c0b1068f8bc79f0', 'hex');
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describe('@encrypt', function() {
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it('should encrypt with a 128 bit key', function() {
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var encbuf = AES.encrypt(m128, k128);
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encbuf.toString('hex').should.equal(e128.toString('hex'));
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});
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it('should encrypt with a 192 bit key', function() {
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var encbuf = AES.encrypt(m128, k192);
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encbuf.toString('hex').should.equal(e192.toString('hex'));
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});
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it('should encrypt with a 256 bit key', function() {
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var encbuf = AES.encrypt(m128, k256);
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encbuf.toString('hex').should.equal(e256.toString('hex'));
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});
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});
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describe('@decrypt', function() {
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it('should encrypt/decrypt with a 128 bit key', function() {
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var encbuf = AES.encrypt(m128, k128);
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var m = AES.decrypt(encbuf, k128);
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m.toString('hex').should.equal(m128.toString('hex'));
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});
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it('should encrypt/decrypt with a 192 bit key', function() {
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var encbuf = AES.encrypt(m128, k192);
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var m = AES.decrypt(encbuf, k192);
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m.toString('hex').should.equal(m128.toString('hex'));
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});
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it('should encrypt/decrypt with a 256 bit key', function() {
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var encbuf = AES.encrypt(m128, k256);
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var m = AES.decrypt(encbuf, k256);
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m.toString('hex').should.equal(m128.toString('hex'));
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});
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});
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describe('@buf2words', function() {
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it('should convert this 4 length buffer into an array', function() {
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var buf = new Buffer([0, 0, 0, 0]);
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var words = AES.buf2words(buf);
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words.length.should.equal(1);
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});
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it('should throw an error on this 5 length buffer', function() {
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var buf = new Buffer([0, 0, 0, 0, 0]);
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(function() {
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var words = AES.buf2words(buf);
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}).should.throw();
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});
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});
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describe('@words2buf', function() {
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it('should convert this array into a buffer', function() {
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var a = [100, 0];
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var buf = AES.words2buf(a);
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buf.length.should.equal(8);
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});
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});
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});
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