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- // Copyright 2010 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.Arc4Test');
- goog.setTestOnly('goog.crypt.Arc4Test');
- goog.require('goog.array');
- goog.require('goog.crypt.Arc4');
- goog.require('goog.testing.jsunit');
- function testEncryptionDecryption() {
- var key = [0x25, 0x26, 0x27, 0x28];
- var startArray = [0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67];
- var byteArray = [0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67];
- var arc4 = new goog.crypt.Arc4();
- arc4.setKey(key);
- arc4.crypt(byteArray);
- assertArrayEquals(byteArray, [0x51, 0xBB, 0xDD, 0x95, 0x9B, 0x42, 0x34]);
- // The same key and crypt call should unencrypt the data back to its original
- // state
- arc4 = new goog.crypt.Arc4();
- arc4.setKey(key);
- arc4.crypt(byteArray);
- assertArrayEquals(byteArray, startArray);
- }
- function testDiscard() {
- var key = [0x25, 0x26, 0x27, 0x28];
- var data = [0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67];
- var arc4 = new goog.crypt.Arc4();
- arc4.setKey(key);
- arc4.discard(256);
- var withDiscard = goog.array.clone(data);
- arc4.crypt(withDiscard);
- // First encrypting a dummy array should give the same result as
- // discarding.
- arc4 = new goog.crypt.Arc4();
- arc4.setKey(key);
- var withCrypt = goog.array.clone(data);
- arc4.crypt(new Array(256));
- arc4.crypt(withCrypt);
- assertArrayEquals(withDiscard, withCrypt);
- }
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