asp.net TripleDES加密、解密算法

2024-07-10 12:39:49

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using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Security.Cryptography;

using System.IO;

namespace WindowsFormsApplication1

{

    #region TripleDES算法



    public class ClassTripleDES

    {

        public ClassTripleDES()

        {

        }



        //加密，使用密码产生加密算法的公钥，并使用TripleDES对密码进行加密。

        public static string Encrypt(string pass)

        {

            try

            {

                byte[] bt = (new System.Text.UnicodeEncoding()).GetBytes(pass);

                PasswordDeriveBytes pdb = new PasswordDeriveBytes(pass, null);

                byte[] key = pdb.GetBytes(24);

                byte[] iv = pdb.GetBytes(8);

                MemoryStream ms = new MemoryStream();

                TripleDESCryptoServiceProvider tdesc = new TripleDESCryptoServiceProvider();

                CryptoStream cs = new CryptoStream(ms, tdesc.CreateEncryptor(key, iv), CryptoStreamMode.Write);

                cs.Write(bt, 0, bt.Length);

                cs.FlushFinalBlock();

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