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/**
* ARC4Test
*
* A test class for ARC4
* Copyright (c) 2007 Henri Torgemane
*
* See LICENSE.txt for full license information.
*/
package com.hurlant.crypto.tests
{
import com.hurlant.util.Hex;
import flash.utils.ByteArray;
import com.hurlant.crypto.prng.ARC4;
public class ARC4Test extends TestCase
{
public function ARC4Test(h:ITestHarness)
{
super(h, "ARC4 Test");
runTest(testLameVectors,"ARC4 Test Vectors");
h.endTestCase();
}
/**
* Sad test vectors pilfered from
* http://en.wikipedia.org/wiki/RC4
*/
public function testLameVectors():void {
var keys:Array = [
Hex.fromString("Key"),
Hex.fromString("Wiki"),
Hex.fromString("Secret")];
var pts:Array = [
Hex.fromString("Plaintext"),
Hex.fromString("pedia"),
Hex.fromString("Attack at dawn")];
var cts:Array = [
"BBF316E8D940AF0AD3",
"1021BF0420",
"45A01F645FC35B383552544B9BF5"];
for (var i:uint=0;i<keys.length;i++) {
var key:ByteArray = Hex.toArray(keys[i]);
var pt:ByteArray = Hex.toArray(pts[i]);
var rc4:ARC4 = new ARC4(key);
rc4.encrypt(pt);
var out:String = Hex.fromArray(pt).toUpperCase();
assert("comparing "+cts[i]+" to "+out, cts[i]==out);
// now go back to plaintext
rc4.init(key);
rc4.decrypt(pt);
out = Hex.fromArray(pt);
assert("comparing "+pts[i]+" to "+out, pts[i]==out);
}
}
}
}
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