Пример #1
0
    public static Result EncryptV10(string pwd, string encryptedKey, out byte[] password)
    {
        Result res = ExtractEncryptedKey(encryptedKey, out byte[] encryptedBytes);

        if (res != Result.Success)
        {
            password = null;
            return(res);
        }

        byte[] version = Encoding.ASCII.GetBytes(MODE_V10);
        string ver     = Encoding.ASCII.GetString(version);

        if (ver != MODE_V10)
        {
            password = null;
            return(Result.UnsupportedProtocol);
        }

        byte[] nonce = AesGcm256.Nonce(12);
        res = AesGcm256.Encrypt(pwd, encryptedBytes, nonce, out byte[] ciphertextTag);
        if (res != Result.Success)
        {
            password = null;
            return(res);
        }

        res = CombineCipherText(version, nonce, ciphertextTag, out password);
        if (res != Result.Success)
        {
            password = null;
            return(res);
        }

        return(Result.Success);
    }