private int processBlock192or256(byte[] input, int inOff, byte[] output, int outOff)
{
for (int i = 0; i < 4; i++)
{
this.state[i] = CamelliaLightEngine.bytes2uint(input, inOff + i * 4);
this.state[i] ^= this.kw[i];
}
this.camelliaF2(this.state, this.subkey, 0);
this.camelliaF2(this.state, this.subkey, 4);
this.camelliaF2(this.state, this.subkey, 8);
this.camelliaFLs(this.state, this.ke, 0);
this.camelliaF2(this.state, this.subkey, 12);
this.camelliaF2(this.state, this.subkey, 16);
this.camelliaF2(this.state, this.subkey, 20);
this.camelliaFLs(this.state, this.ke, 4);
this.camelliaF2(this.state, this.subkey, 24);
this.camelliaF2(this.state, this.subkey, 28);
this.camelliaF2(this.state, this.subkey, 32);
this.camelliaFLs(this.state, this.ke, 8);
this.camelliaF2(this.state, this.subkey, 36);
this.camelliaF2(this.state, this.subkey, 40);
this.camelliaF2(this.state, this.subkey, 44);
this.state[2] ^= this.kw[4];
this.state[3] ^= this.kw[5];
this.state[0] ^= this.kw[6];
this.state[1] ^= this.kw[7];
CamelliaLightEngine.uint2bytes(this.state[2], output, outOff);
CamelliaLightEngine.uint2bytes(this.state[3], output, outOff + 4);
CamelliaLightEngine.uint2bytes(this.state[0], output, outOff + 8);
CamelliaLightEngine.uint2bytes(this.state[1], output, outOff + 12);
return(16);
}
private void camelliaFLs(uint[] s, uint[] fkey, int keyoff)
{
s[1] ^= CamelliaLightEngine.leftRotate(s[0] & fkey[keyoff], 1);
s[0] ^= (fkey[1 + keyoff] | s[1]);
s[2] ^= (fkey[3 + keyoff] | s[3]);
s[3] ^= CamelliaLightEngine.leftRotate(fkey[2 + keyoff] & s[2], 1);
}
private void camelliaF2(uint[] s, uint[] skey, int keyoff)
{
uint num = s[0] ^ skey[keyoff];
uint num2 = this.sbox4((int)((byte)num));
num2 |= this.sbox3((int)((byte)(num >> 8))) << 8;
num2 |= this.sbox2((int)((byte)(num >> 16))) << 16;
num2 |= (uint)((uint)CamelliaLightEngine.SBOX1[(int)((byte)(num >> 24))] << 24);
uint num3 = s[1] ^ skey[1 + keyoff];
uint num4 = (uint)CamelliaLightEngine.SBOX1[(int)((byte)num3)];
num4 |= this.sbox4((int)((byte)(num3 >> 8))) << 8;
num4 |= this.sbox3((int)((byte)(num3 >> 16))) << 16;
num4 |= this.sbox2((int)((byte)(num3 >> 24))) << 24;
num4 = CamelliaLightEngine.leftRotate(num4, 8);
num2 ^= num4;
num4 = (CamelliaLightEngine.leftRotate(num4, 8) ^ num2);
num2 = (CamelliaLightEngine.rightRotate(num2, 8) ^ num4);
s[2] ^= (CamelliaLightEngine.leftRotate(num4, 16) ^ num2);
s[3] ^= CamelliaLightEngine.leftRotate(num2, 8);
num = (s[2] ^ skey[2 + keyoff]);
num2 = this.sbox4((int)((byte)num));
num2 |= this.sbox3((int)((byte)(num >> 8))) << 8;
num2 |= this.sbox2((int)((byte)(num >> 16))) << 16;
num2 |= (uint)((uint)CamelliaLightEngine.SBOX1[(int)((byte)(num >> 24))] << 24);
num3 = (s[3] ^ skey[3 + keyoff]);
num4 = (uint)CamelliaLightEngine.SBOX1[(int)((byte)num3)];
num4 |= this.sbox4((int)((byte)(num3 >> 8))) << 8;
num4 |= this.sbox3((int)((byte)(num3 >> 16))) << 16;
num4 |= this.sbox2((int)((byte)(num3 >> 24))) << 24;
num4 = CamelliaLightEngine.leftRotate(num4, 8);
num2 ^= num4;
num4 = (CamelliaLightEngine.leftRotate(num4, 8) ^ num2);
num2 = (CamelliaLightEngine.rightRotate(num2, 8) ^ num4);
s[0] ^= (CamelliaLightEngine.leftRotate(num4, 16) ^ num2);
s[1] ^= CamelliaLightEngine.leftRotate(num2, 8);
}
private BufferedBlockCipher CreateScryptoEngine()
{
IBlockCipher engine;
switch (_MSec.Algorithm)
{
case ESec.SCRYPTO_AES:
engine = new AesEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_AESFAST:
engine = new AesFastEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_AESLIGHT:
engine = new AesLightEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_BLOWFISH:
engine = new BlowfishEngine();
_MSec.KeySize = 56;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_CAMELLIA:
engine = new CamelliaEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_CAMELLIALIGHT:
engine = new CamelliaLightEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_CAST5:
engine = new Cast5Engine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_CAST6:
engine = new Cast6Engine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_DES:
engine = new DesEngine();
_MSec.KeySize = 8;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_DESEDE:
engine = new DesEdeEngine();
_MSec.KeySize = 24;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_GOST28147:
engine = new Gost28147Engine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_NOEKEON:
engine = new NoekeonEngine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_NULL:
engine = new NullEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 16;
break;
case ESec.SCRYPTO_RC2:
engine = new RC2Engine();
_MSec.KeySize = 128;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_RC532:
engine = new RC532Engine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_RC564:
engine = new RC564Engine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_RC6:
engine = new RC6Engine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_RIJNDAEL:
engine = new RijndaelEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_SEED:
engine = new SeedEngine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_SERPENT:
engine = new SerpentEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_SKIPJACK:
engine = new SkipjackEngine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_TEA:
engine = new TeaEngine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_TWOFISH:
engine = new TwofishEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
case ESec.SCRYPTO_XTEA:
engine = new XteaEngine();
_MSec.KeySize = 16;
_MSec.IVSize = 0;
break;
default:
engine = new AesEngine();
_MSec.KeySize = 32;
_MSec.IVSize = 0;
break;
}
switch (_MSec.Mode)
{
case ESec.MODE_CBC:
engine = new CbcBlockCipher(engine);
break;
case ESec.MODE_CFB:
engine = new CfbBlockCipher(engine, 8);
break;
case ESec.MODE_GOFB:
engine = new GOfbBlockCipher(engine);
break;
case ESec.MODE_OFB:
engine = new OfbBlockCipher(engine, 8);
break;
case ESec.MODE_OPENPGPCFB:
engine = new OpenPgpCfbBlockCipher(engine);
break;
case ESec.MODE_SIC:
engine = new SicBlockCipher(engine);
break;
default:
engine = new CbcBlockCipher(engine);
break;
}
IBlockCipherPadding padding = null;
switch (_MSec.Padding)
{
case ESec.PADDING_ISO10126d2:
padding = new ISO10126d2Padding();
break;
case ESec.PADDING_ISO7816d4:
padding = new ISO7816d4Padding();
break;
case ESec.PADDING_PKCS7:
padding = new Pkcs7Padding();
break;
case ESec.PADDING_TBC:
padding = new TbcPadding();
break;
case ESec.PADDING_X923:
padding = new X923Padding();
break;
case ESec.PADDING_ZEROBYTE:
padding = new ZeroBytePadding();
break;
default:
padding = new Pkcs7Padding();
break;
}
return new PaddedBufferedBlockCipher(engine, padding);
}
private void setKey(bool forEncryption, byte[] key)
{
uint[] array = new uint[8];
uint[] array2 = new uint[4];
uint[] array3 = new uint[4];
uint[] array4 = new uint[4];
int num = key.Length;
if (num != 16)
{
if (num != 24)
{
if (num != 32)
{
throw new ArgumentException("key sizes are only 16/24/32 bytes.");
}
array[0] = CamelliaLightEngine.bytes2uint(key, 0);
array[1] = CamelliaLightEngine.bytes2uint(key, 4);
array[2] = CamelliaLightEngine.bytes2uint(key, 8);
array[3] = CamelliaLightEngine.bytes2uint(key, 12);
array[4] = CamelliaLightEngine.bytes2uint(key, 16);
array[5] = CamelliaLightEngine.bytes2uint(key, 20);
array[6] = CamelliaLightEngine.bytes2uint(key, 24);
array[7] = CamelliaLightEngine.bytes2uint(key, 28);
this._keyis128 = false;
}
else
{
array[0] = CamelliaLightEngine.bytes2uint(key, 0);
array[1] = CamelliaLightEngine.bytes2uint(key, 4);
array[2] = CamelliaLightEngine.bytes2uint(key, 8);
array[3] = CamelliaLightEngine.bytes2uint(key, 12);
array[4] = CamelliaLightEngine.bytes2uint(key, 16);
array[5] = CamelliaLightEngine.bytes2uint(key, 20);
array[6] = ~array[4];
array[7] = ~array[5];
this._keyis128 = false;
}
}
else
{
this._keyis128 = true;
array[0] = CamelliaLightEngine.bytes2uint(key, 0);
array[1] = CamelliaLightEngine.bytes2uint(key, 4);
array[2] = CamelliaLightEngine.bytes2uint(key, 8);
array[3] = CamelliaLightEngine.bytes2uint(key, 12);
array[4] = (array[5] = (array[6] = (array[7] = 0u)));
}
for (int i = 0; i < 4; i++)
{
array2[i] = (array[i] ^ array[i + 4]);
}
this.camelliaF2(array2, CamelliaLightEngine.SIGMA, 0);
for (int j = 0; j < 4; j++)
{
array2[j] ^= array[j];
}
this.camelliaF2(array2, CamelliaLightEngine.SIGMA, 4);
if (this._keyis128)
{
if (forEncryption)
{
this.kw[0] = array[0];
this.kw[1] = array[1];
this.kw[2] = array[2];
this.kw[3] = array[3];
CamelliaLightEngine.roldq(15, array, 0, this.subkey, 4);
CamelliaLightEngine.roldq(30, array, 0, this.subkey, 12);
CamelliaLightEngine.roldq(15, array, 0, array4, 0);
this.subkey[18] = array4[2];
this.subkey[19] = array4[3];
CamelliaLightEngine.roldq(17, array, 0, this.ke, 4);
CamelliaLightEngine.roldq(17, array, 0, this.subkey, 24);
CamelliaLightEngine.roldq(17, array, 0, this.subkey, 32);
this.subkey[0] = array2[0];
this.subkey[1] = array2[1];
this.subkey[2] = array2[2];
this.subkey[3] = array2[3];
CamelliaLightEngine.roldq(15, array2, 0, this.subkey, 8);
CamelliaLightEngine.roldq(15, array2, 0, this.ke, 0);
CamelliaLightEngine.roldq(15, array2, 0, array4, 0);
this.subkey[16] = array4[0];
this.subkey[17] = array4[1];
CamelliaLightEngine.roldq(15, array2, 0, this.subkey, 20);
CamelliaLightEngine.roldqo32(34, array2, 0, this.subkey, 28);
CamelliaLightEngine.roldq(17, array2, 0, this.kw, 4);
return;
}
this.kw[4] = array[0];
this.kw[5] = array[1];
this.kw[6] = array[2];
this.kw[7] = array[3];
CamelliaLightEngine.decroldq(15, array, 0, this.subkey, 28);
CamelliaLightEngine.decroldq(30, array, 0, this.subkey, 20);
CamelliaLightEngine.decroldq(15, array, 0, array4, 0);
this.subkey[16] = array4[0];
this.subkey[17] = array4[1];
CamelliaLightEngine.decroldq(17, array, 0, this.ke, 0);
CamelliaLightEngine.decroldq(17, array, 0, this.subkey, 8);
CamelliaLightEngine.decroldq(17, array, 0, this.subkey, 0);
this.subkey[34] = array2[0];
this.subkey[35] = array2[1];
this.subkey[32] = array2[2];
this.subkey[33] = array2[3];
CamelliaLightEngine.decroldq(15, array2, 0, this.subkey, 24);
CamelliaLightEngine.decroldq(15, array2, 0, this.ke, 4);
CamelliaLightEngine.decroldq(15, array2, 0, array4, 0);
this.subkey[18] = array4[2];
this.subkey[19] = array4[3];
CamelliaLightEngine.decroldq(15, array2, 0, this.subkey, 12);
CamelliaLightEngine.decroldqo32(34, array2, 0, this.subkey, 4);
CamelliaLightEngine.roldq(17, array2, 0, this.kw, 0);
return;
}
else
{
for (int k = 0; k < 4; k++)
{
array3[k] = (array2[k] ^ array[k + 4]);
}
this.camelliaF2(array3, CamelliaLightEngine.SIGMA, 8);
if (forEncryption)
{
this.kw[0] = array[0];
this.kw[1] = array[1];
this.kw[2] = array[2];
this.kw[3] = array[3];
CamelliaLightEngine.roldqo32(45, array, 0, this.subkey, 16);
CamelliaLightEngine.roldq(15, array, 0, this.ke, 4);
CamelliaLightEngine.roldq(17, array, 0, this.subkey, 32);
CamelliaLightEngine.roldqo32(34, array, 0, this.subkey, 44);
CamelliaLightEngine.roldq(15, array, 4, this.subkey, 4);
CamelliaLightEngine.roldq(15, array, 4, this.ke, 0);
CamelliaLightEngine.roldq(30, array, 4, this.subkey, 24);
CamelliaLightEngine.roldqo32(34, array, 4, this.subkey, 36);
CamelliaLightEngine.roldq(15, array2, 0, this.subkey, 8);
CamelliaLightEngine.roldq(30, array2, 0, this.subkey, 20);
this.ke[8] = array2[1];
this.ke[9] = array2[2];
this.ke[10] = array2[3];
this.ke[11] = array2[0];
CamelliaLightEngine.roldqo32(49, array2, 0, this.subkey, 40);
this.subkey[0] = array3[0];
this.subkey[1] = array3[1];
this.subkey[2] = array3[2];
this.subkey[3] = array3[3];
CamelliaLightEngine.roldq(30, array3, 0, this.subkey, 12);
CamelliaLightEngine.roldq(30, array3, 0, this.subkey, 28);
CamelliaLightEngine.roldqo32(51, array3, 0, this.kw, 4);
return;
}
this.kw[4] = array[0];
this.kw[5] = array[1];
this.kw[6] = array[2];
this.kw[7] = array[3];
CamelliaLightEngine.decroldqo32(45, array, 0, this.subkey, 28);
CamelliaLightEngine.decroldq(15, array, 0, this.ke, 4);
CamelliaLightEngine.decroldq(17, array, 0, this.subkey, 12);
CamelliaLightEngine.decroldqo32(34, array, 0, this.subkey, 0);
CamelliaLightEngine.decroldq(15, array, 4, this.subkey, 40);
CamelliaLightEngine.decroldq(15, array, 4, this.ke, 8);
CamelliaLightEngine.decroldq(30, array, 4, this.subkey, 20);
CamelliaLightEngine.decroldqo32(34, array, 4, this.subkey, 8);
CamelliaLightEngine.decroldq(15, array2, 0, this.subkey, 36);
CamelliaLightEngine.decroldq(30, array2, 0, this.subkey, 24);
this.ke[2] = array2[1];
this.ke[3] = array2[2];
this.ke[0] = array2[3];
this.ke[1] = array2[0];
CamelliaLightEngine.decroldqo32(49, array2, 0, this.subkey, 4);
this.subkey[46] = array3[0];
this.subkey[47] = array3[1];
this.subkey[44] = array3[2];
this.subkey[45] = array3[3];
CamelliaLightEngine.decroldq(30, array3, 0, this.subkey, 32);
CamelliaLightEngine.decroldq(30, array3, 0, this.subkey, 16);
CamelliaLightEngine.roldqo32(51, array3, 0, this.kw, 0);
return;
}
}
