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  • .NET MD5加密解密代码

    string JiaMi = Md5Encrypt(LoginPwd);
            string JieMi = Md5Decrypt(JiaMi);
    
            #region MD5加密
            /// <summary>     
            /// MD5加密     
            /// </summary>     
            /// <param name="strSource">需要加密的字符串</param>     
            /// <returns>MD5加密后的字符串</returns>     
            public static string Md5Encrypt(string strSource)
            {
                //把字符串放到byte数组中     
                byte[] bytIn = System.Text.Encoding.Default.GetBytes(strSource);
                //建立加密对象的密钥和偏移量             
                byte[] iv = { 102, 16, 93, 156, 78, 4, 218, 32 };//定义偏移量     
                byte[] key = { 55, 103, 246, 79, 36, 99, 167, 3 };//定义密钥     
                //实例DES加密类     
                DESCryptoServiceProvider mobjCryptoService = new DESCryptoServiceProvider();
                mobjCryptoService.Key = iv;
                mobjCryptoService.IV = key;
                ICryptoTransform encrypto = mobjCryptoService.CreateEncryptor();
                //实例MemoryStream流加密密文件     
                System.IO.MemoryStream ms = new System.IO.MemoryStream();
                CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Write);
                cs.Write(bytIn, 0, bytIn.Length);
                cs.FlushFinalBlock();
                return System.Convert.ToBase64String(ms.ToArray());
            }
            #endregion
    
    
            #region MD5解密
            /// <summary>     
            /// MD5解密     
            /// </summary>     
            /// <param name="Source">需要解密的字符串</param>     
            /// <returns>MD5解密后的字符串</returns>     
            public static string Md5Decrypt(string Source)
            {
                //将解密字符串转换成字节数组     
                byte[] bytIn = System.Convert.FromBase64String(Source);
                //给出解密的密钥和偏移量,密钥和偏移量必须与加密时的密钥和偏移量相同     
                byte[] iv = { 102, 16, 93, 156, 78, 4, 218, 32 };//定义偏移量     
                byte[] key = { 55, 103, 246, 79, 36, 99, 167, 3 };//定义密钥     
                DESCryptoServiceProvider mobjCryptoService = new DESCryptoServiceProvider();
                mobjCryptoService.Key = iv;
                mobjCryptoService.IV = key;
                //实例流进行解密     
                System.IO.MemoryStream ms = new System.IO.MemoryStream(bytIn, 0, bytIn.Length);
                ICryptoTransform encrypto = mobjCryptoService.CreateDecryptor();
                CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Read);
                StreamReader strd = new StreamReader(cs, Encoding.Default);
                return strd.ReadToEnd();
            }
            #endregion
    

      

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  • 原文地址:https://www.cnblogs.com/hnzheng/p/9458779.html
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