- #How to change signature of android studio apk apk
- #How to change signature of android studio apk install
- #How to change signature of android studio apk series
- #How to change signature of android studio apk mac
This tool does not directly support the creation of lineage files as it is considered a task done very rarely.This is the first of a series of posts about Android security. The older jarsigning is called v1 schema.ĪPK Signature Scheme v3 is an extension to v2 which allows a new signature lineage feature for key rotation, which basically means it will be possible to change signature keys.
#How to change signature of android studio apk apk
By default, Android Studio 2.2 and the Android Plugin for Gradle 2.2 sign your app using both APK Signature Scheme v2 and the traditional signing scheme, which uses JAR signing.ĪPK Signature Scheme v2 is a whole-file signature scheme that increases verification speed and strengthens integrity guarantees by detecting any changes to the protected parts of the APK.
#How to change signature of android studio apk install
v1, v2 and v3 Signing SchemeĪndroid 7.0 introduces APK Signature Scheme v2, a new app-signing scheme that offers faster app install times and more protection against unauthorized alterations to APK files. If -skipZipAlign is passed no executable is needed. If the path isn't passed in the command line interface, the tool checks if it is in PATH environment variable, otherwise it will try to use an embedded version of zipalign. By default this tool will try to zipalign the apk, therefore it will need the location of the executable. It is needed if you want to upload it to the Playstore otherwise it is optional. Zipalign is a tool developed by Google to optimize zips (apks). Embedded debug.keystore packaged with the jar executableĪ log message will indicate which one was chosen.debug.keystore found in the /user_home/.android folder.debug.keystore in the same directory as the jar executable.Keystore location provided with -ksDebug.It will try to find on in the following locations (descending order): If no keystore is provided the tool will try to automatically sign with a debug keystore. wrong arguments) and 2 if at least 1 sign/verify process was not successful. This application will return 0 if every signing/verifing was successful, 1 if an error happens (e.g. Java -jar uber-apk-signer.jar -a /path/to/apks -onlyVerify -verifySha256 ab318df27 Provide your own out directory for signed apks
#How to change signature of android studio apk mac
Version is used (available for win, mac and linux) zipAlignPath Pass your own zipalign executable. y,-onlyVerify If this is passed, the signature and alignment is only verified. Signatures with exact these hashes (providing only one hash, even if it if 2 hashes are given the apk must have 2 verifySha256 Provide one or multiple sha256 in string hex representation (ignoringĬase) to let the tool check it against hashes of the APK's certificateĪnd use it in the verify process. verbose Prints more output, especially useful for sign verify. overwrite Will overwrite/delete the apks in-place o,-out Where the aligned/signed apks will be copied to. l,-lineage The lineage file for apk signer schema v3 if more then 1 signature is If this is not provided, caller will getĪ user prompt to enter it. If this is not provided, caller will get a With this option theĭefault keystore alias and passwords are used and any arguments relating ksDebug Same as -ks parameter but with a debug keystore. The syntax for multiple params is '='įor example: '1=my-alias'. It is possible to pass one or multiple aliases for multiple ksAlias The alias of the used key in the keystore. If it is not found there aīuilt-in keystore will be used for convenience. The debug keystore will be searched in the same dir asĮxecution and 'user_home/.android' folder.
If this isn't provided, will tryto sign with a debug dryRun Check what apks would be processed without actually doing anything. debug Prints additional info for debugging. Will sign them with the new certificate (therefore removing the old allowResign If this flag is set, the tool will not show error on signed apks, but Provide multiple locations space seperated (can be mixed file folder): These are usedĪs source for zipalining/signing/verifying. a,-apks Can be a single apk or a folder containing multiple apks.
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