// Write data to the underlying hash algorithm.
protected override void HashCore(byte[] array, int ibStart, int cbSize)
{
// Validate the parameters.
if (array == null)
{
throw new ArgumentNullException("array");
}
else if (ibStart < 0 || ibStart > array.Length)
{
throw new ArgumentOutOfRangeException
("ibStart", _("ArgRange_Array"));
}
else if (cbSize < 0 || (array.Length - ibStart) < cbSize)
{
throw new ArgumentException(_("Arg_InvalidArrayRange"));
}
// Bail out if the runtime engine does not have a provider.
if (state == IntPtr.Zero)
{
throw new CryptographicException
(_("Crypto_NoProvider"), "RIPEMD160");
}
// Update the RIPEMD160 state.
lock (this)
{
CryptoMethods.HashUpdate(state, array, ibStart, cbSize);
}
}