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How can I check that an Android apk is signed with a release and not debug cert?
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Run apksigner verify -v <apk> and look for Verified using v2 scheme (APK Signature Scheme v2): true in the output. apksigner can be found in Android SDK build tools 24.0. 3.
It's the tool print-apk-signature uses. Show activity on this post. First, unzip the APK and extract the file /META-INF/ANDROID_. RSA (this file may also be CERT.
Use this command, (go to java < jdk < bin path in cmd prompt)
$ jarsigner -verify -verbose -certs my_application.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), otherwise you will find something for CN. For more details see: http://developer.android.com/guide/publishing/app-signing.html
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Use console command:
apksigner verify --print-certs application-development-release.apk
You could find apksigner in ../sdk/build-tools/24.0.3/apksigner.bat. Only for build tools v. 24.0.3 and higher.
Also read google docs: https://developer.android.com/studio/command-line/apksigner.html
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