| public Init ( bool forEncryption, ICipherParameters parameters ) : void | ||
| forEncryption | bool | |
| parameters | ICipherParameters | |
| return | void | |
public static long CheckBCRijndael ()
{
CheckFirstCall ();
long after, before = GC.GetTotalMemory (true);
IBlockCipher cipher = new CbcBlockCipher(new AesFastEngine ());
cipher.Init(true, new ParametersWithIV(new KeyParameter(_key), _iv));
cipher.ProcessBlock (_input, 0, _output, 0);
after = GC.GetTotalMemory (true);
cipher.ProcessBlock (_input, 0, _output, 0);
return after - before;
}
private void encryptBlock(byte[] key, byte[] iv, byte[] cekBlock)
{
IBlockCipher engine = new CbcBlockCipher(new DesEngine());
engine.Init(true, new ParametersWithIV(new KeyParameter(key), iv));
for (int i = 0; i < cekBlock.Length; i += 8)
{
engine.ProcessBlock(cekBlock, i, cekBlock, i);
}
for (int i = 0; i < cekBlock.Length; i += 8)
{
engine.ProcessBlock(cekBlock, i, cekBlock, i);
}
}
public void Init(bool encrypting, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("Invalid parameter passed to "+
"DesSsh1Engine init - " + parameters.GetType());
}
this.encrypting = encrypting;
byte[] passphraseKey = (parameters as KeyParameter).GetKey();
if (passphraseKey.Length !=16)
{
throw new ArgumentException("key size different than 16 bytes");
}
byte[] keyPart1 = new byte[8];
byte[] keyPart2 = new byte[8];
Array.Copy(passphraseKey, keyPart1, 8);
Array.Copy(passphraseKey, 8, keyPart2, 0, 8);
desEngine1 = new CbcBlockCipher(new DesEngine());
desEngine2 = new CbcBlockCipher(new DesEngine());
desEngine3 = new CbcBlockCipher(new DesEngine());
desEngine1.Init(encrypting, new KeyParameter(keyPart1));
desEngine2.Init(!encrypting, new KeyParameter(keyPart2));
desEngine3.Init(encrypting, new KeyParameter(keyPart1));
}
