◆ ImportParameters()

unsafe override void System.Security.Cryptography.RSACng.ImportParameters ( RSAParameters parameters )
inline
Definition at line 375 of file RSACng.cs.
    {
        if (parameters.Exponent == null || parameters.Modulus == null)
        {
            throw new CryptographicException(System.SR.Cryptography_InvalidRsaParameters);
        }
        bool flag;
        if (parameters.D == null)
        {
            flag = false;
            if (parameters.P != null || parameters.DP != null || parameters.Q != null || parameters.DQ != null || parameters.InverseQ != null)
            {
                throw new CryptographicException(System.SR.Cryptography_InvalidRsaParameters);
            }
        }
        else
        {
            flag = true;
            if (parameters.P == null || parameters.DP == null || parameters.Q == null || parameters.DQ == null || parameters.InverseQ == null)
            {
                throw new CryptographicException(System.SR.Cryptography_InvalidRsaParameters);
            }
            int num = (parameters.Modulus.Length + 1) / 2;
            if (parameters.D.Length != parameters.Modulus.Length || parameters.P.Length != num || parameters.Q.Length != num || parameters.DP.Length != num || parameters.DQ.Length != num || parameters.InverseQ.Length != num)
            {
                throw new CryptographicException(System.SR.Cryptography_InvalidRsaParameters);
            }
        }
        int num2 = sizeof(global::Interop.BCrypt.BCRYPT_RSAKEY_BLOB) + parameters.Exponent.Length + parameters.Modulus.Length;
        if (flag)
        {
            num2 += parameters.P.Length + parameters.Q.Length;
        }
        byte[] array = new byte[num2];
        fixed (byte* ptr = &array[0])
        {
            global::Interop.BCrypt.BCRYPT_RSAKEY_BLOB* ptr2 = (global::Interop.BCrypt.BCRYPT_RSAKEY_BLOB*)ptr;
            ptr2->Magic = (flag ? global::Interop.BCrypt.KeyBlobMagicNumber.BCRYPT_RSAPRIVATE_MAGIC : global::Interop.BCrypt.KeyBlobMagicNumber.BCRYPT_RSAPUBLIC_MAGIC);
            ptr2->BitLength = parameters.Modulus.Length * 8;
            ptr2->cbPublicExp = parameters.Exponent.Length;
            ptr2->cbModulus = parameters.Modulus.Length;
            if (flag)
            {
                ptr2->cbPrime1 = parameters.P.Length;
                ptr2->cbPrime2 = parameters.Q.Length;
            }
            int offset = sizeof(global::Interop.BCrypt.BCRYPT_RSAKEY_BLOB);
            global::Interop.BCrypt.Emit(array, ref offset, parameters.Exponent);
            global::Interop.BCrypt.Emit(array, ref offset, parameters.Modulus);
            if (flag)
            {
                global::Interop.BCrypt.Emit(array, ref offset, parameters.P);
                global::Interop.BCrypt.Emit(array, ref offset, parameters.Q);
            }
        }
        ImportKeyBlob(array, flag);
    }