ASP.Net中的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";
    }
以上返回是小写.如果想要大写可以把ToLower去掉.

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转载自blog.csdn.net/ychmj/article/details/9718273