C# 實現rtsp Digest Authentication Response

標籤：rtsp摘要認證協議   digest   response   

<pre name="code" class="csharp">using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Security.Cryptography;namespace RTSP_Digest_Authentication{    class Program    {        /// <summary>        /// MD5　32位加密        /// </summary>        /// <param name="str"></param>        /// <returns></returns>        static string md5(string str)        {            MD5 md5 = new MD5CryptoServiceProvider();            byte[] bytes = System.Text.Encoding.UTF8.GetBytes(str);            bytes = md5.ComputeHash(bytes);            md5.Clear();            string ret = "";            for (int i = 0; i < bytes.Length; i++)            {                ret += Convert.ToString(bytes[i], 16).PadLeft(2, '0');//補0            }            return ret.PadLeft(32, '0'); //補0        }        private static string computeDigestResponse(string username, string userpwd, string realm, string cmd, string nonce, string url)        {            // The "response" field is computed as:            //    md5(md5(<username>:<realm>:<password>):<nonce>:md5(<cmd>:<url>))            // or, if "fPasswordIsMD5" is True:            //    md5(<password>:<nonce>:md5(<cmd>:<url>))            string ha1 = md5(username + ":" + realm + ":" + userpwd);            string ha2 = md5(cmd + ":" + url);            string response = md5(ha1 + ":" + nonce + ":" + ha2);            return response;        }        static void Main(string[] args)        {            string username = "root";            string userpwd = "admin";            string realm = "Operator";            string cmd = "DESCRIBE";            string nonce = "3983eb84382ba9811726fc1c2e7fb8be";            string url = "rtsp://root:[email protected]:554/profile1=r";            string response = computeDigestResponse(username, userpwd, realm, cmd, nonce, url);            Console.WriteLine(response);        }    }}