How to secure android encrypted deviceid while transmitting to the server












0















I am building an android app which needs to communicate with the server, validation will be done on the server based on mobile deviceid and after validation, we load some URL in webview (as content is HTML).



But Hackers can decompile and modify/change the code for fetching the deviceid and hardcode his mobile "encrypted deviceid" (once he purchases the app and roots the mobile). Now he can recompile and upload the modified apk copy on the internet.



The main threat is, we will get the proper request and properly encrypted deviceid but will not be able to identify whether this request is coming from a genuine mobile device or other mobile devices those downloaded the hacked/mod copy.



By this, our content will be available to the non-subscribed users also. I have read about the articles and come to conclusions that:



1) HTTPS SSL requests can be tracked and values can be impersonated in between.

2) Progard can also be hacked after decompilation. Also, I know hacking is not impossible.

3) Storing encryption keys on device is also bad.

4) We can not afford dexgaurd for now :)



What to do in this situation? Please help.










share|improve this question



























    0















    I am building an android app which needs to communicate with the server, validation will be done on the server based on mobile deviceid and after validation, we load some URL in webview (as content is HTML).



    But Hackers can decompile and modify/change the code for fetching the deviceid and hardcode his mobile "encrypted deviceid" (once he purchases the app and roots the mobile). Now he can recompile and upload the modified apk copy on the internet.



    The main threat is, we will get the proper request and properly encrypted deviceid but will not be able to identify whether this request is coming from a genuine mobile device or other mobile devices those downloaded the hacked/mod copy.



    By this, our content will be available to the non-subscribed users also. I have read about the articles and come to conclusions that:



    1) HTTPS SSL requests can be tracked and values can be impersonated in between.

    2) Progard can also be hacked after decompilation. Also, I know hacking is not impossible.

    3) Storing encryption keys on device is also bad.

    4) We can not afford dexgaurd for now :)



    What to do in this situation? Please help.










    share|improve this question

























      0












      0








      0








      I am building an android app which needs to communicate with the server, validation will be done on the server based on mobile deviceid and after validation, we load some URL in webview (as content is HTML).



      But Hackers can decompile and modify/change the code for fetching the deviceid and hardcode his mobile "encrypted deviceid" (once he purchases the app and roots the mobile). Now he can recompile and upload the modified apk copy on the internet.



      The main threat is, we will get the proper request and properly encrypted deviceid but will not be able to identify whether this request is coming from a genuine mobile device or other mobile devices those downloaded the hacked/mod copy.



      By this, our content will be available to the non-subscribed users also. I have read about the articles and come to conclusions that:



      1) HTTPS SSL requests can be tracked and values can be impersonated in between.

      2) Progard can also be hacked after decompilation. Also, I know hacking is not impossible.

      3) Storing encryption keys on device is also bad.

      4) We can not afford dexgaurd for now :)



      What to do in this situation? Please help.










      share|improve this question














      I am building an android app which needs to communicate with the server, validation will be done on the server based on mobile deviceid and after validation, we load some URL in webview (as content is HTML).



      But Hackers can decompile and modify/change the code for fetching the deviceid and hardcode his mobile "encrypted deviceid" (once he purchases the app and roots the mobile). Now he can recompile and upload the modified apk copy on the internet.



      The main threat is, we will get the proper request and properly encrypted deviceid but will not be able to identify whether this request is coming from a genuine mobile device or other mobile devices those downloaded the hacked/mod copy.



      By this, our content will be available to the non-subscribed users also. I have read about the articles and come to conclusions that:



      1) HTTPS SSL requests can be tracked and values can be impersonated in between.

      2) Progard can also be hacked after decompilation. Also, I know hacking is not impossible.

      3) Storing encryption keys on device is also bad.

      4) We can not afford dexgaurd for now :)



      What to do in this situation? Please help.







      android security






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 13 '18 at 17:42









      fooltocodefooltocode

      213




      213
























          0






          active

          oldest

          votes











          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53286717%2fhow-to-secure-android-encrypted-deviceid-while-transmitting-to-the-server%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53286717%2fhow-to-secure-android-encrypted-deviceid-while-transmitting-to-the-server%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          這個網誌中的熱門文章

          Xamarin.form Move up view when keyboard appear

          Post-Redirect-Get with Spring WebFlux and Thymeleaf

          Anylogic : not able to use stopDelay()