6f54d4cde6
This is more explanatory ("symmetric encryption") and also does not encourage
its use for people who don't know what they're doing. (It should only be used
in combination with some type of message authentication.)
74 lines
2.2 KiB
JavaScript
74 lines
2.2 KiB
JavaScript
var should = require('chai').should();
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var SymEnc = require('../lib/expmt/symenc');
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describe('SymEnc', function() {
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describe('@encrypt', function() {
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it('should return encrypt one block', function() {
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var password = "password";
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var messagebuf = new Buffer(128 / 8 - 1);
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messagebuf.fill(0);
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var encbuf = SymEnc.encrypt(messagebuf, password);
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encbuf.length.should.equal(128 / 8 + 128 / 8);
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});
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});
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describe('@decrypt', function() {
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it('should decrypt that which was encrypted', function() {
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var password = "password";
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var messagebuf = new Buffer(128 / 8 - 1);
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messagebuf.fill(0);
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var encbuf = SymEnc.encrypt(messagebuf, password);
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var messagebuf2 = SymEnc.decrypt(encbuf, password);
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messagebuf2.toString('hex').should.equal(messagebuf.toString('hex'));
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});
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});
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describe('@encryptCipherkey', function() {
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it('should return encrypt one block', function() {
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var cipherkeybuf = new Buffer(256 / 8);
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cipherkeybuf.fill(0x10);
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var ivbuf = new Buffer(128 / 8);
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ivbuf.fill(0);
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var messagebuf = new Buffer(128 / 8 - 1);
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messagebuf.fill(0);
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var encbuf = SymEnc.encryptCipherkey(messagebuf, cipherkeybuf, ivbuf);
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encbuf.length.should.equal(128 / 8 + 128 / 8);
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});
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it('should return encrypt two blocks', function() {
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var cipherkeybuf = new Buffer(256 / 8);
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cipherkeybuf.fill(0x10);
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var ivbuf = new Buffer(128 / 8);
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ivbuf.fill(0);
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var messagebuf = new Buffer(128 / 8);
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messagebuf.fill(0);
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var encbuf = SymEnc.encryptCipherkey(messagebuf, cipherkeybuf, ivbuf);
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encbuf.length.should.equal(128 / 8 + 128 / 8 + 128 / 8);
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});
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});
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describe('@decryptCipherkey', function() {
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it('should decrypt that which was encrypted', function() {
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var cipherkeybuf = new Buffer(256 / 8);
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cipherkeybuf.fill(0x10);
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var ivbuf = new Buffer(128 / 8);
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ivbuf.fill(0);
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var messagebuf = new Buffer(128 / 8);
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messagebuf.fill(0);
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var encbuf = SymEnc.encryptCipherkey(messagebuf, cipherkeybuf, ivbuf);
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var messagebuf2 = SymEnc.decryptCipherkey(encbuf, cipherkeybuf);
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messagebuf2.toString('hex').should.equal(messagebuf.toString('hex'));
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});
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});
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});
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