C# MD5 加密

 

 

public string md5(string str, int code)
    {
        if (code == 16) //16位MD5加密（取32位加密的9~25字符）
        {
            return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower().Substring(8, 16);
        }

        if (code == 32) //32位加密
        {
            return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower();
        }

        return "00000000000000000000000000000000";
    }