private void ProcessWord(byte[] Input, int InOffset)
{
m_wordBuffer[m_wordOffset] = IntUtils.BytesToBe64(Input, InOffset);
if (++m_wordOffset == 16)
{
ProcessBlock();
}
}
/// <remarks>
/// Convert to big endian integers, increment and convert back
/// </remarks>
private void Rotate(byte[] Counter)
{
// rotate the counter at 32 or 64 bit intervals
if (RotationalAlignment == CounterAlignmentSizes.RAP32)
{
for (int i = 0; i < Counter.Length; i += 4)
{
IntUtils.Be32ToBytes(IntUtils.BytesToBe32(Counter, i) + 1, Counter, i);
}
}
else
{
for (int i = 0; i < Counter.Length; i += 8)
{
IntUtils.Be64ToBytes(IntUtils.BytesToBe64(Counter, i) + 1, Counter, i);
}
}
}
private void Compress(byte[] Block, int Offset)
{
_M[0] = IntUtils.BytesToBe64(Block, Offset);
_M[1] = IntUtils.BytesToBe64(Block, Offset + 8);
_M[2] = IntUtils.BytesToBe64(Block, Offset + 16);
_M[3] = IntUtils.BytesToBe64(Block, Offset + 24);
_M[4] = IntUtils.BytesToBe64(Block, Offset + 32);
_M[5] = IntUtils.BytesToBe64(Block, Offset + 40);
_M[6] = IntUtils.BytesToBe64(Block, Offset + 48);
_M[7] = IntUtils.BytesToBe64(Block, Offset + 56);
_M[8] = IntUtils.BytesToBe64(Block, Offset + 64);
_M[9] = IntUtils.BytesToBe64(Block, Offset + 72);
_M[10] = IntUtils.BytesToBe64(Block, Offset + 80);
_M[11] = IntUtils.BytesToBe64(Block, Offset + 88);
_M[12] = IntUtils.BytesToBe64(Block, Offset + 96);
_M[13] = IntUtils.BytesToBe64(Block, Offset + 104);
_M[14] = IntUtils.BytesToBe64(Block, Offset + 112);
_M[15] = IntUtils.BytesToBe64(Block, Offset + 120);
Array.Copy(_hashVal, _V, 8);
_V[8] = _salt64[0] ^ 0x243F6A8885A308D3UL;
_V[9] = _salt64[1] ^ 0x13198A2E03707344UL;
_V[10] = _salt64[2] ^ 0xA4093822299F31D0UL;
_V[11] = _salt64[3] ^ 0x082EFA98EC4E6C89UL;
_V[12] = 0x452821E638D01377UL;
_V[13] = 0xBE5466CF34E90C6CUL;
_V[14] = 0xC0AC29B7C97C50DDUL;
_V[15] = 0x3F84D5B5B5470917UL;
if (!_isNullT)
{
_V[12] ^= _T;
_V[13] ^= _T;
}
// do 16 rounds
uint index = 0;
do
{
MixBlock(index);
index++;
} while (index != ROUNDS);
// finalization
_hashVal[0] ^= _V[0];
_hashVal[1] ^= _V[1];
_hashVal[2] ^= _V[2];
_hashVal[3] ^= _V[3];
_hashVal[4] ^= _V[4];
_hashVal[5] ^= _V[5];
_hashVal[6] ^= _V[6];
_hashVal[7] ^= _V[7];
_hashVal[0] ^= _V[8];
_hashVal[1] ^= _V[9];
_hashVal[2] ^= _V[10];
_hashVal[3] ^= _V[11];
_hashVal[4] ^= _V[12];
_hashVal[5] ^= _V[13];
_hashVal[6] ^= _V[14];
_hashVal[7] ^= _V[15];
_hashVal[0] ^= _salt64[0];
_hashVal[1] ^= _salt64[1];
_hashVal[2] ^= _salt64[2];
_hashVal[3] ^= _salt64[3];
_hashVal[4] ^= _salt64[0];
_hashVal[5] ^= _salt64[1];
_hashVal[6] ^= _salt64[2];
_hashVal[7] ^= _salt64[3];
}
