| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| |
| /* Test AES function - test driver and function exerciser for AES API Functions */ |
| |
| var CTX = require("../index"); |
| |
| var chai = require('chai'); |
| |
| var expect = chai.expect; |
| |
| var ctx = new CTX(); |
| |
| |
| var bytestostring = function(b) { |
| var s = ""; |
| var len = b.length; |
| var ch; |
| |
| for (var i = 0; i < len; i++) { |
| ch = b[i]; |
| s += ((ch >>> 4) & 15).toString(16); |
| s += (ch & 15).toString(16); |
| } |
| return s; |
| } |
| |
| var stringtobytes = function(s) { |
| var b = []; |
| for (var i = 0; i < s.length; i++) |
| b.push(s.charCodeAt(i)); |
| return b; |
| } |
| |
| var hextobytes = function(value_hex) { |
| // "use strict"; |
| var len, byte_value, i; |
| |
| len = value_hex.length; |
| byte_value = []; |
| |
| for (i = 0; i < len; i += 2) { |
| byte_value[(i / 2)] = parseInt(value_hex.substr(i, 2), 16); |
| } |
| return byte_value; |
| }; |
| |
| var AES_ENCRYPT = function(mode, K, M, IV) { |
| /* Input is from an octet string M, output is to an octet string C */ |
| /* Input is padded as necessary to make up a full final block */ |
| var a = new ctx.AES(); |
| var fin; |
| var i, j, ipt, opt; |
| var buff = []; |
| |
| var C = []; |
| |
| a.init(mode, K.length, K, IV); |
| |
| ipt = opt = 0; |
| fin = false; |
| for (;;) { |
| for (i = 0; i < 16; i++) { |
| if (ipt < M.length) buff[i] = M[ipt++]; |
| else { |
| fin = true; |
| break; |
| } |
| } |
| if (fin) break; |
| a.encrypt(buff); |
| for (i = 0; i < 16; i++) |
| C[opt++] = buff[i]; |
| } |
| |
| a.end(); |
| return C; |
| }; |
| |
| var AES_DECRYPT = function(mode, K, C, IV) { /* padding is removed */ |
| var a = new ctx.AES(); |
| var i, ipt, opt, ch; |
| var buff = []; |
| var MM = []; |
| var fin, bad; |
| var padlen; |
| ipt = opt = 0; |
| |
| a.init(mode, K.length, K, IV); |
| |
| if (C.length === 0) return []; |
| ch = C[ipt++]; |
| |
| fin = false; |
| |
| for (;;) { |
| for (i = 0; i < 16; i++) { |
| buff[i] = ch; |
| if (ipt >= C.length) { |
| fin = true; |
| break; |
| } else ch = C[ipt++]; |
| } |
| a.decrypt(buff); |
| if (fin) break; |
| for (i = 0; i < 16; i++) |
| MM[opt++] = buff[i]; |
| } |
| |
| a.end(); |
| |
| for (i = 0; i < 16; i++) |
| MM[opt++] = buff[i]; |
| |
| var M = []; |
| if (bad) return M; |
| |
| for (i = 0; i < opt; i++) M[i] = MM[i]; |
| return MM; |
| }; |
| |
| describe('TEST AES', function() { |
| |
| var IV, KEY, PLAINTEXT, Cout, Pout; |
| |
| it('test AES-128-ECB encryption', function(done) { |
| this.timeout(0); |
| |
| var vectors = require('../testVectors/aes/AES_ECB_MMT128_ENC.json'); |
| |
| for (var vector in vectors) { |
| KEY = hextobytes(vectors[vector].KEY); |
| PLAINTEXT = hextobytes(vectors[vector].PLAINTEXT); |
| |
| Cout = AES_ENCRYPT(ctx.AES.ECB,KEY,PLAINTEXT,null); |
| |
| expect(bytestostring(Cout)).to.be.equal(vectors[vector].CIPHERTEXT); |
| } |
| done(); |
| }); |
| |
| it('test AES-128-ECB decryption', function(done) { |
| this.timeout(0); |
| |
| var vectors = require('../testVectors/aes/AES_ECB_MMT128_DEC.json'); |
| |
| for (var vector in vectors) { |
| KEY = hextobytes(vectors[vector].KEY); |
| CIPHERTEXT = hextobytes(vectors[vector].CIPHERTEXT); |
| |
| Pout = AES_DECRYPT(ctx.AES.ECB,KEY,CIPHERTEXT,null); |
| |
| expect(bytestostring(Pout)).to.be.equal(vectors[vector].PLAINTEXT); |
| } |
| done(); |
| }); |
| |
| it('test AES-128-CTR encryption', function(done) { |
| this.timeout(0); |
| |
| var vectors = require('../testVectors/aes/AES_CTR_MLC128.json'); |
| |
| for (var vector in vectors) { |
| KEY = hextobytes(vectors[vector].KEY); |
| PLAINTEXT = hextobytes(vectors[vector].PLAINTEXT); |
| IV = hextobytes(vectors[vector].IV); |
| |
| Cout = AES_ENCRYPT(ctx.AES.CTR16,KEY,PLAINTEXT,IV); |
| |
| expect(bytestostring(Cout)).to.be.equal(vectors[vector].CIPHERTEXT); |
| } |
| done(); |
| }); |
| |
| it('test AES-128-CTR decryption', function(done) { |
| this.timeout(0); |
| |
| var vectors = require('../testVectors/aes/AES_CTR_MLC128.json'); |
| |
| for (var vector in vectors) { |
| KEY = hextobytes(vectors[vector].KEY); |
| CIPHERTEXT = hextobytes(vectors[vector].CIPHERTEXT); |
| IV = hextobytes(vectors[vector].IV); |
| |
| Pout = AES_DECRYPT(ctx.AES.CTR16,KEY,CIPHERTEXT,IV); |
| |
| expect(bytestostring(Pout)).to.be.equal(vectors[vector].PLAINTEXT); |
| } |
| done(); |
| }); |
| |
| it('test AES-128-CBC encryption', function(done) { |
| this.timeout(0); |
| |
| var vectors = require('../testVectors/aes/AES_CBC_MMT128.json'); |
| |
| for (var vector in vectors) { |
| KEY = hextobytes(vectors[vector].KEY); |
| PLAINTEXT = hextobytes(vectors[vector].PLAINTEXT); |
| IV = hextobytes(vectors[vector].IV); |
| |
| Cout = AES_ENCRYPT(ctx.AES.CBC,KEY,PLAINTEXT,IV); |
| |
| expect(bytestostring(Cout)).to.be.equal(vectors[vector].CIPHERTEXT); |
| } |
| done(); |
| }); |
| |
| it('test AES-128-CBC decryption', function(done) { |
| this.timeout(0); |
| |
| var vectors = require('../testVectors/aes/AES_CBC_MMT128.json'); |
| |
| for (var vector in vectors) { |
| KEY = hextobytes(vectors[vector].KEY); |
| CIPHERTEXT = hextobytes(vectors[vector].CIPHERTEXT); |
| IV = hextobytes(vectors[vector].IV); |
| |
| Pout = AES_DECRYPT(ctx.AES.CBC,KEY,CIPHERTEXT,IV); |
| |
| expect(bytestostring(Pout)).to.be.equal(vectors[vector].PLAINTEXT); |
| } |
| done(); |
| }); |
| |
| }); |