增加免密登陆的token

wzp

2022-07-12 705909e14fe4e9f2fc261ee4eb40a8b41fa2f6d4

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using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Web.Security;
 
namespace Common
{
 
    public class DESEncrypt
    {
        //加密串
        //public static string encryptStr = "litianping";
        public static string encryptStr = "abcDEF123@$@";
 
        public static string Encrypt(string Text)
        {
            return DESEncrypt.Encrypt(Text, encryptStr);
        }
 
        public static string Encrypt(string Text, string sKey)
        {
            DESCryptoServiceProvider cryptoServiceProvider = new DESCryptoServiceProvider();
            byte[] bytes = Encoding.Default.GetBytes(Text);
            //c#的DES加密是key为8位
            cryptoServiceProvider.Key = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            cryptoServiceProvider.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            MemoryStream memoryStream = new MemoryStream();
            CryptoStream cryptoStream = new CryptoStream((Stream)memoryStream, cryptoServiceProvider.CreateEncryptor(), CryptoStreamMode.Write);
            cryptoStream.Write(bytes, 0, bytes.Length);
            cryptoStream.FlushFinalBlock();
            StringBuilder stringBuilder = new StringBuilder();
            foreach (byte num in memoryStream.ToArray())
                stringBuilder.AppendFormat("{0:X2}", (object)num);
            return stringBuilder.ToString();
        }
 
        public static string Decrypt(string Text)
        {
            return DESEncrypt.Decrypt(Text, encryptStr);
        }
 
        public static string Decrypt(string Text, string sKey)
        {
            DESCryptoServiceProvider cryptoServiceProvider = new DESCryptoServiceProvider();
            int length = Text.Length / 2;
            byte[] buffer = new byte[length];
            for (int index = 0; index < length; ++index)
            {
                int num = Convert.ToInt32(Text.Substring(index * 2, 2), 16);
                buffer[index] = (byte)num;
            }
            //c#的DES加密是key为8位
            cryptoServiceProvider.Key = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            cryptoServiceProvider.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            MemoryStream memoryStream = new MemoryStream();
            CryptoStream cryptoStream = new CryptoStream((Stream)memoryStream, cryptoServiceProvider.CreateDecryptor(), CryptoStreamMode.Write);
            cryptoStream.Write(buffer, 0, buffer.Length);
            cryptoStream.FlushFinalBlock();
            return Encoding.Default.GetString(memoryStream.ToArray());
        }
    }
}