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;
}
