Signing applications with a key has become an essential part in the process for mobile app developers. It's like a signature for the app.
To know how to sign the applications, visit the android developer reference here.
Now let us see how to verify whether the app ( android build.. APK) is signed or not and with what key.
As mentioned already in one of my posts that describes how to install APK programmatically, an APK file is a kind of jar file.
As mentioned already in one of my posts that describes how to install APK programmatically, an APK file is a kind of jar file.
Go to command prompt and type the following and replace <path> and <app_name> accordingly.
jarsigner -verify <path>/<app_name>.apk
command. If you see "jar verified" message, it means it is a signed one.
To know more about the key details, type the below
jarsigner -verify -verbose -certs <path>/<app_name>.apk
If you see "CN=Android Debug", this means the .apk was signed with the debug key generated by the Android SDK(means it is unsigned), else you will find something for CN.
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