细说RESTful API安全之防止数据篡改

          地址：http://192.168.0.10/v1/user/add?sign=MD5(请求参数 + timestamp + access_token)&timestamp=1496978464401
          方法：POST
        消息头：
          Host：192.168.0.10
    User-Agent：Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0
        Accept：text/json, */*; q=0.01
  Content-Type：application/json; charset=UTF-8
Content-Length：67
    Connection：keep-alive
Authentication：Basic Y2hlbmNoPTExMTExMQ==
    
      请求参数：
{name: "zhangsan", email: "zhangsan@org.com", phone: "1318907653"}