internal static extern uint NCryptEncrypt(SafeNCryptKeyHandle hKey, byte[] pbInput, int cbInput, ref BCrypt.BCRYPT_OAEP_PADDING_INFO pvPadding, byte[] pbOutput, uint cbOutput, out uint pcbResult, uint dwFlags);
public static byte[] Encrypt(byte[] plainText, CngKey key, CngAlgorithm hash) { var paddingInfo = new BCrypt.BCRYPT_OAEP_PADDING_INFO(hash.Algorithm); uint cipherTextByteSize; uint status = NCrypt.NCryptEncrypt(key.Handle, plainText, plainText.Length, ref paddingInfo, null, 0, out cipherTextByteSize, BCrypt.BCRYPT_PAD_OAEP); if (status != BCrypt.ERROR_SUCCESS) throw new CryptographicException(string.Format("NCrypt.Encrypt() (ciphertext buffer size) failed with status code:{0}", status)); var cipherText = new byte[cipherTextByteSize]; status = NCrypt.NCryptEncrypt(key.Handle, plainText, plainText.Length, ref paddingInfo, cipherText, cipherTextByteSize, out cipherTextByteSize, BCrypt.BCRYPT_PAD_OAEP); if (status != BCrypt.ERROR_SUCCESS) throw new CryptographicException(string.Format("NCrypt.Encrypt() failed with status code:{0}", status)); return cipherText; }