apksigner - 30.0.3-4 main

apksig is a project which aims to simplify APK signing and checking
whether APK's signatures should verify on Android. apksig supports
JAR signing (used by Android since day one) and APK Signature Scheme
v2 (supported since Android Nougat, API Level 24).
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The key feature of apksig is that it knows about differences in APK
signature verification logic between different versions of the
Android platform. apksig can thus check whether a signed APK is
expected to verify on all Android platform versions supported by the
APK. When signing an APK, apksig will choose the most appropriate
cryptographic algorithms based on the Android platform versions
supported by the APK being signed.
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apksigner command-line tool offers two operations:
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* sign the provided APK so that it verifies on all Android platforms
supported by the APK. Run apksigner sign for usage information.
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* check whether the provided APK's signatures are expected to verify
on all Android platforms supported by the APK. Run apksigner verify
for usage information.
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The tool determines the range of Android platform versions (API
Levels) supported by the APK by inspecting the APK's
AndroidManifest.xml. This behavior can be overridden by specifying
the range of platform versions on the command-line.