/**
* generate a signature for the loaded message using the key we were
* initialised with.
*/
public virtual byte[] GenerateSignature()
{
CreateSignatureBlock();
BigInteger t = new BigInteger(1, cipher.ProcessBlock(block, 0, block.Length));
ClearBlock(block);
t = t.Min(kParam.Modulus.Subtract(t));
return BigIntegers.AsUnsignedByteArray((kParam.Modulus.BitLength + 7) / 8, t);
}
