
代碼
//加密 Cookies
Response.Cookies["askCRM"]["USERID"] = Tools.Encrypt(strUserName.Trim(), Tools.myKey);
//解密
string strUid = Request.Cookies["askCRM"]["USERID"];
strUid = Tools.Decrypt(strUid, Tools.myKey);
加密解密 掉用的方法
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Security.Cryptography;
using System.IO;
using System.Text;
/// <summary>
/// Tools 的摘要說明
/// </summary>
public class Tools
{
/// <summary>
/// 目前程式加密所使用的密鑰
/// </summary>
public static readonly string myKey = "q0m3sd8l";
#region 加密方法
/// 加密方法
/// <param name="pToEncrypt">需要加密字元串</param>
/// <param name="sKey">密鑰</param>
/// <returns>加密後的字元串</returns>
public static string Encrypt(string pToEncrypt, string sKey)
{
try
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
//把字元串放到byte數組中
//原來使用的UTF8編碼,我改成Unicode編碼了,不行
byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
//建立加密對象的密鑰和偏移量
//使得輸入密碼必須輸入英文文本
des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
MemoryStream ms = new 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);
}
ret.ToString();
return ret.ToString();
}
catch (Exception ex)
JS.Alert("寫入配置資訊失敗,詳細資訊:" + ex.Message.Replace("\r\n", "").Replace("'", ""));
return "";
}
#endregion
#region 解密方法
/// 解密方法
/// <param name="pToDecrypt">需要解密的字元串</param>
/// <param name="sKey">密匙</param>
/// <returns>解密後的字元串</returns>
public static string Decrypt(string pToDecrypt, string sKey)
byte[] inputByteArray = new byte[pToDecrypt.Length / 2];
for (int x = 0; x < pToDecrypt.Length / 2; x++)
int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16));
inputByteArray[x] = (byte)i;
//建立加密對象的密鑰和偏移量,此值重要,不能修改
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
//建立StringBuild對象,CreateDecrypt使用的是流對象,必須把解密後的文本變成流對象
return System.Text.Encoding.Default.GetString(ms.ToArray());
JS.Alert("讀取配置資訊失敗,詳細資訊:" + ex.Message.Replace("\r\n", "").Replace("'", ""));
}