Encrypt DES - CSharp System.Security.Cryptography

CSharp examples for System.Security.Cryptography:DES

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Description

Encrypt DES

Demo Code


using System.Text;
using System.Security.Cryptography;
using System.IO;/*  w ww .  j a v  a  2s.c  o  m*/
using System;
using System.Threading.Tasks;
using System.Text;
using System.Linq;
using System.Collections.Generic;
using System;

public class Main{
        public static string Encrypt3DES(string sourceStr, string key, Encoding encoding)
        {
            TripleDESCryptoServiceProvider provider = new TripleDESCryptoServiceProvider();
            provider.Key = new MD5CryptoServiceProvider().ComputeHash(encoding.GetBytes(key));
            provider.Mode = CipherMode.ECB;
            ICryptoTransform transform = provider.CreateEncryptor();
            byte[] bytes = encoding.GetBytes(sourceStr);
            return Convert.ToBase64String(transform.TransformFinalBlock(bytes, 0, bytes.Length));
        }
        public static string Encrypt3DES(string sourceStr, string key)
        {
            TripleDESCryptoServiceProvider provider = new TripleDESCryptoServiceProvider();
            provider.Key = new MD5CryptoServiceProvider().ComputeHash(Encoding.UTF8.GetBytes(key));
            provider.Mode = CipherMode.ECB;
            ICryptoTransform transform = provider.CreateEncryptor();
            byte[] bytes = Encoding.UTF8.GetBytes(sourceStr);
            return Convert.ToBase64String(transform.TransformFinalBlock(bytes, 0, bytes.Length));
        }
        public static string Encrypt3DES(string sourceStr)
        {
            TripleDESCryptoServiceProvider provider = new TripleDESCryptoServiceProvider();
            provider.Key = new MD5CryptoServiceProvider().ComputeHash(Encoding.UTF8.GetBytes(key));
            provider.Mode = CipherMode.ECB;
            ICryptoTransform transform = provider.CreateEncryptor();
            byte[] bytes = Encoding.UTF8.GetBytes(sourceStr);
            return Convert.ToBase64String(transform.TransformFinalBlock(bytes, 0, bytes.Length));
        }
}

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