How to secure android encrypted deviceid while transmitting to the server












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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









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