public override void PerformTest()
{
IsaacEngine engine = new IsaacEngine();
doTest(engine, Hex.Decode("00000000"), outBase);
doTest(engine, Hex.Decode("ffffffff"), outFFFFFFFF);
byte[] k = new byte[256 * 4];
for (int i = 0; i != k.Length; i++)
{
k[i] = (byte)((i % 4 == 0 || i % 4 == 1) ? 0xff : 0x00);
}
doTest(engine, k, outFFFF0000);
k = new byte[256 * 4];
for (int i = 0; i != k.Length; i++)
{
k[i] = (byte)((i % 4 == 2 || i % 4 == 3) ? 0xff : 0x00);
}
doTest(engine, k, out0000FFFF);
}
private void doTest(
IsaacEngine engine,
byte[] key,
byte[] output)
{
byte[] input = new byte[output.Length];
byte[] enc = new byte[output.Length];
engine.Init(true, new KeyParameter(key));
engine.ProcessBytes(input, 0, input.Length, enc, 0);
if (!AreEqual(enc, output))
{
Fail("ciphertext mismatch");
}
engine.Init(false, new KeyParameter(key));
engine.ProcessBytes(enc, 0, enc.Length, enc, 0);
if (!AreEqual(enc, input))
{
Fail("plaintext mismatch");
}
}
private BufferedStreamCipher CreateSstreamEngine()
{
IStreamCipher engine;
switch (_MSec.Algorithm)
{
case ESec.SSTREAM_HC128:
engine = new HC128Engine();
_MSec.KeySize = 16;//128
_MSec.IVSize = 16;
break;
case ESec.SSTREAM_HC256:
engine = new HC256Engine();
_MSec.KeySize = 32;
_MSec.IVSize = 16;
break;
case ESec.SSTREAM_ISAAC:
engine = new IsaacEngine();
_MSec.KeySize = 10;
_MSec.IVSize = 0;
break;
case ESec.SSTREAM_RC4:
engine = new RC4Engine();
_MSec.KeySize = 10;
_MSec.IVSize = 0;
break;
case ESec.SSTREAM_SALSA20:
engine = new Salsa20Engine();
_MSec.KeySize = 16;
_MSec.IVSize = 8;
break;
case ESec.SSTREAM_VMPC:
engine = new VmpcEngine();
_MSec.KeySize = 10;
_MSec.IVSize = 16;
break;
case ESec.SSTREAM_VMPCKSA3:
engine = new VmpcKsa3Engine();
_MSec.KeySize = 10;
_MSec.IVSize = 16;
break;
default:
engine = null;
_MSec.KeySize = 0;
_MSec.IVSize = 0;
break;
}
return new BufferedStreamCipher(engine);
}
