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  • C#(.net)邮箱发送功能以及密码的加密解密功能

     先上一段邮箱发送的代码

    public static void send(string email, string password)
            {
                MailMessage mailObj = new MailMessage();
                mailObj.From = new MailAddress("1111111@qq.com"); //发送人邮箱地址
                mailObj.To.Add(email);   //收件人邮箱地址
                mailObj.Subject = "欢迎注册";    //主题
                mailObj.Body = "随机码" + password;    //正文
                SmtpClient smtp = new SmtpClient();
                smtp.Host = "smtp.163.com";         //163的域名
                smtp.UseDefaultCredentials = true;
                smtp.Credentials = new NetworkCredential("1111111@qq.com", "ndke1996"); //发送人的登录名和密码  
           smtp.Send(mailObj); 
    }

    发送完密码后肯定要对密码进行加密存进数据库

      public static string Encrypt(string Text, string sKey)
            {
                DESCryptoServiceProvider des = new DESCryptoServiceProvider();
                byte[] inputByteArray;
                inputByteArray = Encoding.Default.GetBytes(Text);
                des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
                des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
                System.IO.MemoryStream ms = new System.IO.MemoryStream();
                CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
                cs.Write(inputByteArray, 0, inputByteArray.Length);
                cs.FlushFinalBlock();
                StringBuilder ret = new StringBuilder();
                foreach (byte b in ms.ToArray())
                {
                    ret.AppendFormat("{0:X2}", b);
                }
                return ret.ToString();
            }

    解码代码

     public static string Decrypt(string Text, string sKey)
            {
                DESCryptoServiceProvider des = new DESCryptoServiceProvider();
                int len;
                len = Text.Length / 2;
                byte[] inputByteArray = new byte[len];
                int x, i;
                for (x = 0; x < len; x++)
                {
                    i = Convert.ToInt32(Text.Substring(x * 2, 2), 16);
                    inputByteArray[x] = (byte)i;
                }
                des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
                des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
                System.IO.MemoryStream ms = new System.IO.MemoryStream();
                CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
                cs.Write(inputByteArray, 0, inputByteArray.Length);
                cs.FlushFinalBlock();
                return Encoding.Default.GetString(ms.ToArray());
            }
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  • 原文地址:https://www.cnblogs.com/wangjiaxiaoxi/p/6624178.html
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