using System;

using System.Text;

using System.Linq;

using System.IO;

using System.Security.Cryptography;

​

public class CertificateExtractor {

  public static void Main() {

    string YourCertificate = "ZSv/WkOGiQ25eqY+A5Lgln3pq91NidrEBM/BezdP0gbYJFS6y";

    byte[] CertByte = Convert.FromBase64String(YourCertificate);

    byte[] bytes = Encoding.UTF8.GetBytes("b5nHjsMrqaeNliSs3jyOzgpD");

    byte[] bytes2 = Encoding.UTF8.GetBytes("wuD6keVr");

    TripleDESCryptoServiceProvider tripleDESCryptoServiceProvider = new TripleDESCryptoServiceProvider();

    byte[] result;

    using (MemoryStream memoryStream = new MemoryStream())

    {

        using (CryptoStream cryptoStream = new CryptoStream(memoryStream, tripleDESCryptoServiceProvider.CreateDecryptor(bytes, bytes2), CryptoStreamMode.Write))

        {

            cryptoStream.Write(CertByte, 0, CertByte.Length);

            cryptoStream.Close();

        }

        result = memoryStream.ToArray();

        memoryStream.Close();

    }

​

    Console.WriteLine(Encoding.UTF8.GetString(result));

  }

}

​

​