public void Initialize(ulong[] config)
{
if (config == null)
throw new ArgumentNullException("config");
if (config.Length != 8)
throw new ArgumentException("config length must be 8 words");
_isInitialized = true;
_h[0] = IV0;
_h[1] = IV1;
_h[2] = IV2;
_h[3] = IV3;
_h[4] = IV4;
_h[5] = IV5;
_h[6] = IV6;
_h[7] = IV7;
_counter0 = 0;
_counter1 = 0;
_finalizationFlag0 = 0;
_finalizationFlag1 = 0;
_bufferFilled = 0;
Array.Clear(_buf, 0, _buf.Length);
for (int i = 0; i < 8; i++)
_h[i] ^= config[i];
}