Signing apk with .p12

Question

I am going to update my client's app which is available on Google PlayStore. And I have only a .p12 file with password, not .keystore file.

I am wondering if it's possible to publish the updated version to Google PlayStore.

Sorry for basic question. I am so confused with that. Thank you in advance for your assistance.

Answer 1

You can just convert your p12 file to jks:

Create an empty JKS store

keytool -genkey -alias anyname -keystore yourcertificate.jks
keytool -delete -alias anyname -keystore yourcertificate.jks

Import yourcertificate.p12 into yourcertificate.jks

keytool -v -importkeystore -srckeystore yourcertificate.p12 -srcstoretype PKCS12 -destkeystore yourcertificate.jks -deststoretype JKS

You can also check this link: http://shib.kuleuven.be/docs/ssl_commands.shtml#keytool

Answer 2

These commands worked for me:

keytool -importkeystore -srckeystore yourp12file.p12 -destkeystore keystorefile.keystore -srcstoretype pkcs12

Answer 3

You gonna use the flag -storetype PKCS12

First, create your keystore with its alias [ on this ex. mykeystore and myalias ]

keytool -genkey -alias myalias -keystore mykeystore -storetype PKCS12 -keyalg RSA -validity 3650 -keysize 2048

And just sign your APK

jarsigner -keystore mykeystore my.apk myalias

In case you need to align the app, use zipalign command before and do the signing with the aligned one, like so:

zipalign -f -p 4 my.apk myapk-aligned.apk

jarsigner -keystore mykeystore myapk-aligned.apk myalias

Flags used on zipalign

-f overwrite existing outfile

-p page align stored shared object files

-v if you want to see the verbose log, use that

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The -validity 3650 was used to expire the signing in 10 years