public virtual byte[] ProcessBlock(byte[] inBuf, int inOff, int inLen)
{
BigInteger bigInteger = core.ConvertInput(inBuf, inOff, inLen);
bigInteger = ((!forEncryption) ? UnblindMessage(bigInteger) : BlindMessage(bigInteger));
return(core.ConvertOutput(bigInteger));
}
public virtual byte[] ProcessBlock(byte[] inBuf, int inOff, int inLen)
{
if (core == null)
{
throw new InvalidOperationException("RSA engine not initialised");
}
return(core.ConvertOutput(core.ProcessBlock(core.ConvertInput(inBuf, inOff, inLen))));
}
public virtual byte[] ProcessBlock(byte[] inBuf, int inOff, int inLen)
{
if (key == null)
{
throw new InvalidOperationException("RSA engine not initialised");
}
BigInteger bigInteger = core.ConvertInput(inBuf, inOff, inLen);
BigInteger bigInteger4;
if (key is RsaPrivateCrtKeyParameters)
{
RsaPrivateCrtKeyParameters rsaPrivateCrtKeyParameters = (RsaPrivateCrtKeyParameters)key;
BigInteger publicExponent = rsaPrivateCrtKeyParameters.PublicExponent;
if (publicExponent != null)
{
BigInteger modulus = rsaPrivateCrtKeyParameters.Modulus;
BigInteger bigInteger2 = BigIntegers.CreateRandomInRange(BigInteger.One, modulus.Subtract(BigInteger.One), random);
BigInteger input = bigInteger2.ModPow(publicExponent, modulus).Multiply(bigInteger).Mod(modulus);
BigInteger bigInteger3 = core.ProcessBlock(input);
BigInteger val = bigInteger2.ModInverse(modulus);
bigInteger4 = bigInteger3.Multiply(val).Mod(modulus);
if (!bigInteger.Equals(bigInteger4.ModPow(publicExponent, modulus)))
{
throw new InvalidOperationException("RSA engine faulty decryption/signing detected");
}
}
else
{
bigInteger4 = core.ProcessBlock(bigInteger);
}
}
else
{
bigInteger4 = core.ProcessBlock(bigInteger);
}
return(core.ConvertOutput(bigInteger4));
}