imx6q android signapk

[光荣周]

HELLO

In my apk，in order to use <android:sharedUserId="android.uid.system"> .so use signapk tools sign my apk.

in android source code find two files"platform.pk8"and "platform.x509.pem"，then use signapk tools，use command "java -jar signapk.jar platform.x509.pem platform.pk8 test.apk testnew.apk" sign my apk，finished copy new apk to my device and install,but occurred error"apk not install"“应用安装未完成”，or use wandoujia tools install my new apk, also occurred the error “共享用户权限不完整”。

if I don't use  <android:sharedUserId="android.uid.system"> in my apk, this apk can install finished and no error.

how to solution this question?

[BiyongSUN]

The question is for i.MX6q or  android technology?

Is it the same if you want to use this apksign for an android phone?

[光荣周]

hello ,the question if for imx6q device.system is android4.3.

same to an android phone,but this file platform.x509.pem and platform.pk8 is related with imx6q

[gary_bisson · Accepted solution]

Hi,

Yes you can sign an application with the platform keys to get the system uid. I suggest you read my blog post:

http://boundarydevices.com/android-security-part-1-application-signatures-permissions/

Note that Freescale builds are not using the keys from the AOSP but their own (provided under devices/fsl):

$ java -jar out/host/linux-x86/framework/signapk.jar -w \

device/fsl/common/security/platform.x509.pem \

device/fsl/common/security/platform.pk8 app_name.apk app_name-signed.apk

Also note that you need to uninstall the application on the phone first before being able to install the platform-signed one. Otherwise Android package manager will see the change of certificates and doesn't allow it.

Regards,

Gary

[SergioSolis]

Thank you for answering this thread Gary, it will greatly improve the knowledgebase!

[光荣周]

hello，thank you very much! follow your ways,my question have solution.

my ways occurred error the reason is the key file  "platform.pk8"and "platform.x509.pem" was wrong ,I found them from build/target/product/security/.

The correct key file should found them from device/fsl/common/security/.

[BiyongSUN]

Is it the same if you want to use this apksign for an android phone?

It seems a very high application issue. if it is an application issue, we only can give a limited support.

What's the question for i.MX6?