TripleDes.cs

using System;
using System.IO;
using System.Security.Cryptography;
namespace Crypto
{
    class TripleDes
    {
        public static byte[] GenerateRandomNumber(int length)
        {
            using (var randomNumberGenerator = new RNGCryptoServiceProvider())
            {
                var random = new Byte[length];
                randomNumberGenerator.GetBytes(random);
                return random;
            }
        }

        public byte[] Encrypt(byte[] dataToEncrypt, byte[] key, byte[] iv)
        {
            using (var des = new TripleDESCryptoServiceProvider())
            {
                des.Mode = CipherMode.CBC;
                des.Padding = PaddingMode.PKCS7;
                des.Key = key;
                des.IV = iv;
                using (var memoryStream = new MemoryStream())
                {
                    var cryptoStream = new CryptoStream(memoryStream, des.CreateEncryptor(), CryptoStreamMode.Write);
                    cryptoStream.Write(dataToEncrypt, 0, dataToEncrypt.Length);
                    cryptoStream.FlushFinalBlock();
                    return memoryStream.ToArray();

                }
            }
        }

        public byte[] Decrypt(byte[]dataToDecrypt, byte[] key, byte[] iv){
            using(var des=new TripleDESCryptoServiceProvider()){
                des.Mode=CipherMode.CBC;
                des.Padding=PaddingMode.PKCS7;
                des.Key=key;
                des.IV=iv;
                using (var memoryStream=new MemoryStream()){
                    var cryptoStream=new CryptoStream(memoryStream,des.CreateDecryptor(),CryptoStreamMode.Write);
                    cryptoStream.Write(dataToDecrypt,0,dataToDecrypt.Length);
                    cryptoStream.FlushFinalBlock();
                    return memoryStream.ToArray();
                }
            }
        }
    }
}