/// <summary>
/// Returns the computed <see cref="T:TigerHash" /> hash value after all data has been written to the object.
/// </summary>
/// <returns>The computed hash code.</returns>
protected override byte[] HashFinal()
{
int bufferOffset = this.bufferPosition;
byte[] buffer = this.internalDataBuffer;
buffer[bufferOffset] = 1;
bufferOffset += 1;
if ((BLOCKSIZE - 8) <= bufferOffset)
{
Array.Clear(buffer, bufferOffset, BLOCKSIZE - bufferOffset);
this.ProcessBlock();
bufferOffset = 0;
}
Array.Clear(buffer, bufferOffset, BLOCKSIZE - bufferOffset - 8);
TigerHash.LongToBytes(((ulong)this.totalLength) << 3, buffer, BLOCKSIZE - 8);
this.ProcessBlock();
byte[] retval = new byte[24];
TigerHash.LongToBytes(this.a, retval, 0);
TigerHash.LongToBytes(this.b, retval, 8);
TigerHash.LongToBytes(this.c, retval, 16);
return(retval);
}
private void Compress()
{
ulong aa, bb, cc;
ulong[] tmpBlock;
aa = this.a;
bb = this.b;
cc = this.c;
tmpBlock = this.block;
this.RoundABC(tmpBlock[0], 5);
this.RoundBCA(tmpBlock[1], 5);
this.RoundCAB(tmpBlock[2], 5);
this.RoundABC(tmpBlock[3], 5);
this.RoundBCA(tmpBlock[4], 5);
this.RoundCAB(tmpBlock[5], 5);
this.RoundABC(tmpBlock[6], 5);
this.RoundBCA(tmpBlock[7], 5);
TigerHash.Schedule(tmpBlock);
this.RoundCAB(tmpBlock[0], 7);
this.RoundABC(tmpBlock[1], 7);
this.RoundBCA(tmpBlock[2], 7);
this.RoundCAB(tmpBlock[3], 7);
this.RoundABC(tmpBlock[4], 7);
this.RoundBCA(tmpBlock[5], 7);
this.RoundCAB(tmpBlock[6], 7);
this.RoundABC(tmpBlock[7], 7);
TigerHash.Schedule(tmpBlock);
this.RoundBCA(tmpBlock[0], 9);
this.RoundCAB(tmpBlock[1], 9);
this.RoundABC(tmpBlock[2], 9);
this.RoundBCA(tmpBlock[3], 9);
this.RoundCAB(tmpBlock[4], 9);
this.RoundABC(tmpBlock[5], 9);
this.RoundBCA(tmpBlock[6], 9);
this.RoundCAB(tmpBlock[7], 9);
this.a = this.a ^ aa;
this.b -= bb;
this.c += cc;
}
