mobile

Greeting's, I would like to know if there's a way to verify android installation (or image, i'm unsure on which is the correct reference; pardon me.). I own a Nexus 5 (32GB) and my phone recently received 5.1 update. Update process finished normally, there was a reboot and the standard optimizing app's screen. Few days later, when I rebooted my phone; the same optimizing apps process started. I had checked that my 5.1 update was to build LMY47I and there is no further update to this build. At this point, I am bit concerned as to - 1) Why the optimizing application process started? 2) While I did google around a bit, I did not find any definitive way to check integrity of installed android image.

I'm a information security architect and almost all OS's have a way to verify its installed integrity. Windows for PC's have sigverif and SFC commands. Traditional BIOS is being replaced with UEFI which helps verify and maintain boot cycle integrity.

So, in android is there such process or tools or commands to verify integrity of installation?


Thanking you in anticipation,
Parth Maniar