jarsigner
command is available.jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore [path to keystore] -signedjar [name for the output signed file].aab [path to unsigned aab] [keystore alias]
jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore hwrecog-upload-key.keystore -signedjar app-release-signed.aab app-release.aab hwrecog-key-alias