Android Question Signature Files for APK sign - pk8 and .x509.pem

[Jmu5667]

Hello

One of our suppliers of phone has sent us *.pk8 and *.x509.pem file, they are media, platform, releasekey, shared, testkey, and verify. This file will allow us have our apps as system app on their devices.

I am unsure how to use these files, but from reading I need to sign our apps.

Any help would be appreciated.

Regards

John.

 

[Erel]

How to import x509.pem pk8 file into jks-keystore?

I have already tried to use the command keytool -import -keystore *.jks -alias alias_name -keypass alias_passwd -file *.x509.pem` (no *.pk8 file) but when I use the jks to sign the APK, a trusted

stackoverflow.com

 

[Jmu5667]

How to import x509.pem pk8 file into jks-keystore?

I have already tried to use the command keytool -import -keystore *.jks -alias alias_name -keypass alias_passwd -file *.x509.pem` (no *.pk8 file) but when I use the jks to sign the APK, a trusted

stackoverflow.com

Thank you, I will try it.

 

[Mike1970]

Hi, this is how I managed to do it, based on the stackoverflow post that sent Erel.
(Note: I used "b4a" as alias to be able to use it in B4A under "Tools > Private Sign Key")

1. Get a PEM
   
   openssl pkcs8 -in platform.pk8 -inform DER -outform PEM -out platform.priv.pem -nocrypt
   
   
2. Create a PK12
   (You will be asked to set a password)
   
   openssl pkcs12 -export -in platform.x509.pem -inkey platform.priv.pem -out platform.pk12 -name b4a
   
   
3. Create the Keystore
   (In this step you will be asked for the password set in the previous step AND to set a new password for the Keystore, I used the same to not mess it up)
   
   keytool -importkeystore -destkeystore platform.jks -srckeystore platform.pk12 -srcstoretype PKCS12 -alias b4a
   
   
4. Test if everything is successful
   
   keytool -list -keystore platform.jks
   
   
5. You can now use it as a normal keystore file to sign your APKs by putting it under "Tools > Private Sign Key" with you password