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// Copyright 2011 The Closure Library Authors. All Rights Reserved.
//
// Licensed 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.
goog.provide('goog.crypt.HmacTest');
goog.setTestOnly('goog.crypt.HmacTest');
goog.require('goog.crypt.Hmac');
goog.require('goog.crypt.Sha1');
goog.require('goog.crypt.hashTester');
goog.require('goog.testing.jsunit');
function stringToBytes(s) {
var bytes = new Array(s.length);
for (var i = 0; i < s.length; ++i) {
bytes[i] = s.charCodeAt(i) & 255;
}
return bytes;
}
function hexToBytes(str) {
var arr = [];
for (var i = 0; i < str.length; i += 2) {
arr.push(parseInt(str.substring(i, i + 2), 16));
}
return arr;
}
function bytesToHex(b) {
var hexchars = '0123456789abcdef';
var hexrep = new Array(b.length * 2);
for (var i = 0; i < b.length; ++i) {
hexrep[i * 2] = hexchars.charAt((b[i] >> 4) & 15);
hexrep[i * 2 + 1] = hexchars.charAt(b[i] & 15);
}
return hexrep.join('');
}
/**
* helper to get an hmac of the given message with the given key.
*/
function getHmac(key, message, opt_blockSize) {
var hasher = new goog.crypt.Sha1();
var hmacer = new goog.crypt.Hmac(hasher, key, opt_blockSize);
return bytesToHex(hmacer.getHmac(message));
}
function testBasicOperations() {
var hmac = new goog.crypt.Hmac(new goog.crypt.Sha1(), 'key', 64);
goog.crypt.hashTester.runBasicTests(hmac);
}
function testBasicOperationsWithNoBlockSize() {
var hmac = new goog.crypt.Hmac(new goog.crypt.Sha1(), 'key');
goog.crypt.hashTester.runBasicTests(hmac);
}
function testHmac() {
// HMAC test vectors from:
// http://tools.ietf.org/html/2202
assertEquals(
'test 1 failed', 'b617318655057264e28bc0b6fb378c8ef146be00',
getHmac(
hexToBytes('0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b'),
stringToBytes('Hi There')));
assertEquals(
'test 2 failed', 'effcdf6ae5eb2fa2d27416d5f184df9c259a7c79',
getHmac(
stringToBytes('Jefe'),
stringToBytes('what do ya want for nothing?')));
assertEquals(
'test 3 failed', '125d7342b9ac11cd91a39af48aa17b4f63f175d3',
getHmac(
hexToBytes('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
hexToBytes(
'dddddddddddddddddddddddddddddddddddddddd' +
'dddddddddddddddddddddddddddddddddddddddd' +
'dddddddddddddddddddd')));
assertEquals(
'test 4 failed', '4c9007f4026250c6bc8414f9bf50c86c2d7235da',
getHmac(
hexToBytes('0102030405060708090a0b0c0d0e0f10111213141516171819'),
hexToBytes(
'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd' +
'cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd' +
'cdcdcdcdcdcdcdcdcdcd')));
assertEquals(
'test 5 failed', '4c1a03424b55e07fe7f27be1d58bb9324a9a5a04',
getHmac(
hexToBytes('0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c'),
stringToBytes('Test With Truncation')));
assertEquals(
'test 6 failed', 'aa4ae5e15272d00e95705637ce8a3b55ed402112',
getHmac(
hexToBytes(
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' +
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' +
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' +
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
stringToBytes(
'Test Using Larger Than Block-Size Key - Hash Key First')));
assertEquals(
'test 7 failed', 'b617318655057264e28bc0b6fb378c8ef146be00',
getHmac(
hexToBytes('0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b'),
stringToBytes('Hi There'), 64));
assertEquals(
'test 8 failed', '941f806707826395dc510add6a45ce9933db976e',
getHmac(
hexToBytes('0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b'),
stringToBytes('Hi There'), 32));
}
/** Regression test for Bug 12863104 */
function testUpdateWithLongKey() {
// Calling update() then digest() should give the same result as just
// calling getHmac()
var key = hexToBytes(
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' +
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' +
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' +
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
var message = 'Secret Message';
var hmac = new goog.crypt.Hmac(new goog.crypt.Sha1(), key);
hmac.update(message);
var result1 = bytesToHex(hmac.digest());
hmac.reset();
var result2 = bytesToHex(hmac.getHmac(message));
assertEquals('Results must be the same', result1, result2);
}
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