MD5接口解密操作_接口签名校验

很多HTTP接口在传参时，需要先对接口的参数进行数据签名加密
如以下POST接口

http://localhost:8080/pinter/com/userInfo

参数为
{"phoneNum":"123434","optCode":"testfan","timestamp":"1211212","sign":"fdsfdsaafsasfas"}

其中，sign字段是按照特定算法进行加密后的数据
本接口的签名算法为
sign=Md5(phoneNum+ optCode+ timestamp)

签名过程中涉及到的C语言函数
字符串拼接
char str[50];
strcat(str,"testfan");
保存当前时间戳：web_save_timestamp_param("tStamp", LAST );

注意 引入 md5.h 文件进行算法解密

 Action()
 {
 //定义 字符串类型
     char cat[];

     web_reg_find("Search=Body",
         "SaveCount=find_cnt",
         "Text=code\":\"0\"",
         LAST);

     web_save_timestamp_param("tStamp", LAST );

 //拼接 在一起
     strcat(cat, lr_eval_string("135{phoneNum}"));
     strcat(cat, "testfan");
     strcat(cat, lr_eval_string("{tStamp}"));

 //CMd5 是调用的 MD5.h 这个文件中的 函数进行md5 解码的
     lr_save_string(CMd5(cat), "singMd5");

     lr_output_message("==============================%s",CMd5(cat));

     web_add_header("Content-type", "application/json");

     lr_start_transaction("singmd5");

     web_custom_request("post", "Method=POST", 

         "URL=http://localhost:8080/pinter/com/userInfo", 

         "Body={\"phoneNum\":\"135{phoneNum}\",\"optCode\":\"testfan\",\"timestamp\":\"{tStamp}\",\"sign\":\"{singMd5}\"}", 

         "TargetFrame=", 

         LAST );

     if(atoi(lr_eval_string("{find_cnt}")) >  ){
         lr_end_transaction("singmd5", LR_PASS);

     }else{

         lr_end_transaction("singmd5", LR_FAIL);

     }

     return ;
 }

运行日志如下：

 Virtual User Script started at : -- ::
 Starting action vuser_init.
 Web Turbo Replay of LoadRunner 11.0. for WINXP; build  (Aug   ::)      [MsgId: MMSG-]
 Run Mode: HTML      [MsgId: MMSG-]
 Run-Time Settings file: "C:\test_huzhenyu\Script\singn\\default.cfg"      [MsgId: MMSG-]
 Ending action vuser_init.
 Running Vuser...
 Starting iteration .
 Starting action Action.
 Action.c(): Registering web_reg_find was successful      [MsgId: MMSG-]
 Action.c(): Notify: Saving Parameter "tStamp = 1552736236160".
 Action.c(): web_save_timestamp_param("web_save_timestamp_param") was successful      [MsgId: MMSG-]
 Action.c(): Notify: Parameter Substitution: parameter "phoneNum" =  ""
 Action.c(): Notify: Parameter Substitution: parameter "tStamp" =  ""
 Action.c(): Notify: Saving Parameter "singMd5 = b7f1b1f74de61497d65fd0027b8166fc".
 Action.c(): ==============================b7f1b1f74de61497d65fd0027b8166fc
 Action.c(): Warning -: The header being added may cause unpredictable results when applied to all ensuing URLs. It is added anyway      [MsgId: MWAR-]
 Action.c(): web_add_header("Content-type") highest severity level was "warning"      [MsgId: MMSG-]
 Action.c(): Notify: Transaction "singmd5" started.
 Action.c(): Notify: Parameter Substitution: parameter "phoneNum" =  ""
 Action.c(): Notify: Parameter Substitution: parameter "tStamp" =  ""
 Action.c(): Notify: Parameter Substitution: parameter "singMd5" =  "b7f1b1f74de61497d65fd0027b8166fc"
 Action.c(): t=1018ms: -byte response headers for "http://localhost:8080/pinter/com/userInfo" (RelFrameId=, Internal ID=)
 Action.c():     HTTP/1.1  \r\n
 Action.c():     Content-Type: application/json;charset=UTF-\r\n
 Action.c():     Transfer-Encoding: chunked\r\n
 Action.c():     Date: Sat,  Mar  :: GMT\r\n
 Action.c():     \r\n
 Action.c(): t=1061ms: -byte chunked response overhead for "http://localhost:8080/pinter/com/userInfo" (RelFrameId=, Internal ID=)
 Action.c():     12a\r\n
 Action.c(): t=1068ms: -byte chunked response overhead for "http://localhost:8080/pinter/com/userInfo" (RelFrameId=, Internal ID=)
 Action.c():     \r\n
 Action.c(): t=1077ms: -byte chunked response body for "http://localhost:8080/pinter/com/userInfo" (RelFrameId=, Internal ID=)
 Action.c():     {"code":"","message":"success","data":{"id":,"userName":"鎬ц兘娴嬭瘯","password":nul
 Action.c():     l,"age":,"gender":,"phoneNum":"","email":"beihe@testfan.com","address":"鍖椾
 Action.c():     含甯傛槍骞冲尯绉戞槦瑗胯矾106鍙烽櫌锛堝浗椋庣編鍞愯姳鍥患鍚堟ゼ锛\x893鍙锋ゼ1111","creat
 Action.c():     eTime":null,"updateTime":null}}
 Action.c(): HTML parsing not performed for Content-Type "application/json" ("ParseHtmlContentType" Run-Time Setting is "TEXT"). URL="http://localhost:8080/pinter/com/userInfo"      [MsgId: MMSG-]
 Action.c(): t=1122ms: -byte chunked response overhead for "http://localhost:8080/pinter/com/userInfo" (RelFrameId=, Internal ID=)
 Action.c():     \r\n
 Action.c():     \r\n
 Action.c(): Registered web_reg_find successful for "Text=code":""" (count=1)      [MsgId: MMSG-26364]
 Action.c(): Notify: Saving Parameter "find_cnt = 1".
 Action.c(): web_custom_request("post") was successful,  body bytes,  header bytes,  chunking overhead bytes      [MsgId: MMSG-]
 Action.c(): Notify: Parameter Substitution: parameter "find_cnt" =  ""
 Action.c(): Notify: Transaction "singmd5" ended with "Pass" status (Duration: 0.7485 Wasted Time: 0.4988).
 Ending action Action.
 Ending iteration .
 Ending Vuser...
 Starting action vuser_end.
 Ending action vuser_end.
 Vuser Terminated.