If the stores do this, they probably say so in their TOS, it seems legally dubious to modify your app without your consent.
Kris On Sat, Oct 5, 2013 at 3:09 PM, Richard Schilling <[email protected]>wrote: > It's possible that some stores will modify your app to add some Digital > Rights Management checks to help prevent hacking. You might have to look > into the Android Source code to see what happens. There is a DRM package > in the API: > > http://developer.android.com/reference/android/drm/package-summary.html > > > Hope that helps. > > Cheers, > > Richard > > > On Thursday, September 19, 2013 12:27:36 AM UTC-7, gauri wrote: >> >> Hello, >> >> The android app downloaded/purchased from Google Play is stored in >> "/data/app" directory. >> Does Play Store or android system modify the apk after download? >> I have calculated message digest of apk before it's upload to Play store. >> I am calculating message digest of the downloaded apk (present at >> /data/app) and verifying it with the digest stored in my app. >> When I purchase it from Play store, after my app launch, digest >> verification is getting failed. >> I found that the message digest which I have stored in app and the digest >> which I am calculating at run time are differing. >> Am I going in right direction? >> >> Thanks. >> > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Android Developers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.

