Signing for App bundle (.aab)
App bundle`s deployment scenario is different from apk`s because it can not be applied to users` smartphones. After uploading the signed app bundle, Google Playstore make split APK and re-sign that. If the uploaded app bundle is not signed with a pre-registered certificate, the upload is not allowed.
After applying AppSealing to the app bundle, it must be re-signed by jarsigner with the 'SHA-256' algorithm.
jarsigner Command & Example
jarsigner -verbose -sigalg SHA256withRSA -digestalg SHA-256 -keystore {keystore_path} {aab_path} {keystore_alias_name}
jarsigner -verbose -sigalg SHA256withRSA -digestalg SHA-256 -keystore d:\your.keystore d:\your.aab keystore_alias_name
Note: The app bundle doesn't require zipalign.