[Q] How to verify APK signature - General Questions and Answers

Hello.
I want to know how can I verify the digital signature of an APK file.
I'm currently downloading what calims to be a leaked Nexus 4 system dump.
When I right click->Properties on an exe file (on Windows), I can see Digital Signatures tab and there I can see certificates etc.
I want to do something similiar to APK files. In my current situation, I want to make sure apps I'll find on the download are actually unmodified, Google-made thing.
This will also come in handy in other situations.
Solutions that work on Windows are great, solutions that work on Android are also OK.
Thanks.

Related

[Q] Is it possible to mod and resign official APK files?

I've got unrooted official 2.2 device and I don't want to root it. The only thing I'd like to achieve is to remove some stock applications. While I can't remove apk files I thought about upgrading them to some empty versions without activities and intents.
I can prepare such upgraded apk with modified manifest without problems. The problem is to make an actual upgrade. From what I read the apk needs to be signed with the same key as the original. I get 'already exists' error which probably means the same resource but different certificate.
Is it possible to hack/resign such a file to be able to upgrade the stock application?

[Q] Copying Apps off of a Phone

I'm trying to find a way to copy XAP files off my Windows Phone to replace the icons with custom ones. I can't figure out how to do this though. Someone suggested Advanced Explorer, but it's not working for me (it seems to work, but I can't find the Install folder that Apps are supposed to be in). I'm using a Samsung Focus (v1.3) running 8107, dev and interlop unlocked. Is there anything I can use to do this?

[Q] How To Build Gapps Files using UpdatezipCreator

Hi all! Have been having a play with UpdatezipCreator for windows. Put all of the .apk files into a folder called:
“System”
As suggested in the UpdatezipCreator wiki. However, when I run the gapps file in clockwork Mod, it completely ignores what I have done. Also, for some reason, it places all files into a directory, one level down and the directory is called whatever I have named the .zip. is this normal or, am I missing some vital step. Would like to get this working as I would like to add missing accessibility components to the gapps file that I am using in order to get ICS talking out of the box with my Sony Xperia Pro. Am also interested in getting this going so that I can assist other visually impaired users with this. Finally, am open to creating gapps files with other methods in Windows. Thanks in advance for all help with this. It’s really appreciated!

APK-structure

Dear comunity,
is anyone here who can tell me how to find out which files are necessary for a uncertain apk?
This question might look strange but I'm asking because I try to get an apk from a 4.0.x firmware to a 4.1.x and it doesn't work.
The apk I'm talking about is the Snote.apk from the N8010 device and this apk needs a lot of lib's and other fils to run.
So to get it run on other firmwares I need e.g. a tool that shows me which files are in cooperate with Snote. Or otherwise in which file into the apk are these information written?
This question might be helpfully for all android-users who want to find out which files are needed for an apk they want to port.
Thank you

[Q] Hacking Hardware Stumped?

I'm trying to covert a thin-client RDP system into a standalone linux system. I'd like to run a lighthttp server on it and auto-boot it to chromium (on start up).
The device comes with a crappy RDP interface and has a method for installing software UPGRADES via FTP. --- Confirmed working.
Doing some research on the web I was able to find an update package for this device. ATTACHED AS TORRENT FILE.
Using CENTOS I've tried to extract the RAMDISK but Linux doesn't seem to know how to extract the file type. I've tried a ton of scripts from xda-devs none seem to work.
I've tried just changing the system dir to see if I can get that work but it seems that the new image doesn't take to the device. I did see that the scripts have checksum info in them but not sure how to repackage or change them to adjust for the new changes.
I do see the build.prop file with a ton of ANDROID stuff and the package is APK signed. Thus I'm thinking it's an ANDROID setup. Also I see that the device is using busybox.
Any help or ideas how to get this doing what I need it?
Thanks!
chavenor said:
I'm trying to covert a thin-client RDP system into a standalone linux system. I'd like to run a lighthttp server on it and auto-boot it to chromium (on start up).
The device comes with a crappy RDP interface and has a method for installing software UPGRADES via FTP. --- Confirmed working.
Doing some research on the web I was able to find an update package for this device. ATTACHED AS TORRENT FILE.
Using CENTOS I've tried to extract the RAMDISK but Linux doesn't seem to know how to extract the file type. I've tried a ton of scripts from xda-devs none seem to work.
I've tried just changing the system dir to see if I can get that work but it seems that the new image doesn't take to the device. I did see that the scripts have checksum info in them but not sure how to repackage or change them to adjust for the new changes.
I do see the build.prop file with a ton of ANDROID stuff and the package is APK signed. Thus I'm thinking it's an ANDROID setup. Also I see that the device is using busybox.
Any help or ideas how to get this doing what I need it?
Thanks!
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