// iterative hash function
private byte[] Func()
{
var intBlock = GetBigEndianBytes(_block);
_hmacNotBuiltIn.Initialize();
_hmacNotBuiltIn.TransformBytes(_salt, 0, _salt.Length);
_hmacNotBuiltIn.TransformBytes(intBlock, 0, intBlock.Length);
var temp = _hmacNotBuiltIn.TransformFinal().GetBytes();
var result = ArrayUtils.Clone(temp);
uint i = 2;
while (i <= _iterations)
{
temp = _hmacNotBuiltIn.ComputeBytes(temp).GetBytes();
var j = 0;
while (j < _blockSize)
{
result[j] = (byte)(result[j] ^ temp[j]);
j++;
}
i++;
}
_block++;
return(result);
}
} // end function Initialize
// iterative hash function
private byte[] Func()
{
byte[] INT_block = GetBigEndianBytes(Block);
hmacNotBuiltIn.Initialize();
hmacNotBuiltIn.TransformBytes(Salt, 0, Salt.Length);
hmacNotBuiltIn.TransformBytes(INT_block, 0, INT_block.Length);
byte[] temp = hmacNotBuiltIn.TransformFinal().GetBytes();
byte[] result = temp.DeepCopy();
UInt32 i = 2;
Int32 j = 0;
while (i <= IterationCount)
{
temp = hmacNotBuiltIn.ComputeBytes(temp).GetBytes();
j = 0;
while (j < BlockSize)
{
result[j] = (byte)(result[j] ^ temp[j]);
j++;
} // end while
i++;
} // end while
Block++;
return(result);
} // end function Func
protected override void HashCore(byte[] array, int ibStart, int cbSize)
{
if (array == null)
{
throw new ArgumentNullException(nameof(array));
}
Debug.Assert(cbSize >= 0);
Debug.Assert(ibStart >= 0);
Debug.Assert(ibStart + cbSize <= array.Length);
_hmacNotBuiltIn.TransformBytes(array, ibStart, cbSize);
}
