Andreas Hocevar
60 lines
1.9 KiB
JavaScript
60 lines
1.9 KiB
JavaScript
// Copyright 2010 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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goog.provide('goog.crypt.Arc4Test');
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goog.setTestOnly('goog.crypt.Arc4Test');
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goog.require('goog.array');
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goog.require('goog.crypt.Arc4');
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goog.require('goog.testing.jsunit');
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function testEncryptionDecryption() {
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var key = [0x25, 0x26, 0x27, 0x28];
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var startArray = [0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67];
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var byteArray = [0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67];
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var arc4 = new goog.crypt.Arc4();
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arc4.setKey(key);
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arc4.crypt(byteArray);
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assertArrayEquals(byteArray, [0x51, 0xBB, 0xDD, 0x95, 0x9B, 0x42, 0x34]);
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// The same key and crypt call should unencrypt the data back to its original
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// state
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arc4 = new goog.crypt.Arc4();
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arc4.setKey(key);
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arc4.crypt(byteArray);
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assertArrayEquals(byteArray, startArray);
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}
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function testDiscard() {
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var key = [0x25, 0x26, 0x27, 0x28];
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var data = [0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67];
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var arc4 = new goog.crypt.Arc4();
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arc4.setKey(key);
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arc4.discard(256);
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var withDiscard = goog.array.clone(data);
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arc4.crypt(withDiscard);
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// First encrypting a dummy array should give the same result as
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// discarding.
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arc4 = new goog.crypt.Arc4();
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arc4.setKey(key);
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var withCrypt = goog.array.clone(data);
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arc4.crypt(new Array(256));
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arc4.crypt(withCrypt);
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assertArrayEquals(withDiscard, withCrypt);
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}
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