using System;

using System.IO;

using System.Linq;

using System.Security.Cryptography;

using System.Text;

using System.Threading.Tasks;

using System.Text.Json;

using Amazon.SimpleSystemsManagement;

using Amazon.SimpleSystemsManagement.Model;

​

​

public class Program

{

    public static async Task Main()

    {

        var data = new TbaData

        {

            ClientKey = "MyClientKey-2",

            ClientSecret = "MyClientSecret-2",

            TokenId = "MyTokenId-2",

            TokenSecret = "MyTokenSecret-2"

        };

        //var awskey = "";

        //var parameter = await ssm.GetParameterAsync(new GetParameterRequest { Name = awskey, WithDecryption = true });

        //encryptionKey = parameter.Parameter.Value;

        var encryptionKey = "JbIj1Fne5/zNknX16Rcp/8O9aphZZRlmUz1K8PmcccQ=";

        var encryptionKeyBytes = Convert.FromBase64String(encryptionKey);       

        var encrypted = ToEncryptedJson(data, encryptionKeyBytes);

        Console.WriteLine($"encrypted = {encryptionKey}");

    }

    public class TbaData

    {

        public string ClientKey { get; set; }

        public string ClientSecret { get; set; }

        public string TokenId { get; set; }

        public string TokenSecret { get; set; }

    }

    public static string ToEncryptedJson(TbaData data, byte[] key)

    {

        using var aes = Aes.Create();

        aes.Key = key;

        aes.Padding = PaddingMode.PKCS7;

        aes.Mode = CipherMode.CBC;

        using var memStream = new MemoryStream();

        memStream.Write(aes.IV);

​

        using var encrypter = aes.CreateEncryptor();

        using var cryptoStream = new CryptoStream(memStream, encrypter, CryptoStreamMode.Write);

        JsonSerializer.Serialize(cryptoStream, data);

        cryptoStream.FlushFinalBlock();

​

        var result = Convert.ToBase64String(memStream.ToArray());

        Console.WriteLine($"Result = {result}");

        return result;

    }

}