MD5加密

MD5加密

方法一：
string password = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(password, "md5")//不截取字符串

或：string password = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(password, "md5").Substring(8, 16);//截取字符串

如果该加密方法写在控制层里需添加引用System.Web,
并在类中添加using System.Web.Security;


方法二：
using System.Security.Cryptography;

//str是
public static string GetMD5String(string str)
   {
         MD5 md5 = MD5.Create();
         byte[] b = Encoding.UTF8.GetBytes(str);
         byte[] md5b = md5.ComputeHash(b);
         md5.Clear();
         StringBuilder sb = new StringBuilder();
         foreach (var item in md5b)
         {
            sb.Append(item.ToString("x2"));
         }
         return sb.ToString();
    }


注意：加密之后的字符串应与相比较的字符串大小写一致