Duplicating a private key with a new alias

Question

http://developer.android.com/tools/publishing/app-signing.html

I have a keystore that I already have an alias and password for.

I have released applications using this keystore.

I have now given ownership of one of these applications to someone else, and so to update that application they need to use my keystore. However I don't want them to use my alias or password.

Is it possible to create a new alias and password for the same keystore

and just as importantly

will Google Play allow an APK signed with the new alias to be used as an update for that already published app?

If so what is the command, or a good help link please?

score 1 · Answer 1 · answered Jun 29 '12 at 08:25

1

Your key store contains your key. Just put your key in a new keystore. And give them that one. Or.. I suppose just give them the key.

answered Jun 29 '12 at 08:25

rossco

11
1

Any url document references or how to's? How do you get the key out / put it in a new keystore? – Blundell Jun 29 '12 at 08:28
keytool -importkeystore -srckeystore existing-store.jks -destkeystore new-store.p12 -deststoretype PKCS12 – rossco Jun 29 '12 at 08:34
Ok I had to use ` -deststoretype JKS` but that just clones the keystore, I need to add a new alias as well – Blundell Jun 29 '12 at 08:49
keytool -export -alias mydomain -file mydomain.crt – rossco Jun 29 '12 at 09:16

score 1 · Accepted Answer · edited May 23 '17 at 12:04

Ok I got it, thanks @Rossco for the initial boost.

First I copied my keystore to a new file

ctrl+c ctrl+v

Then I changed the password on the keystore:

keytool -storepasswd -keystore my.keystore

Then I changed the name of the alias in the keystore

keytool -changealias -keystore my.keystore -alias "old_alias" -destalias "new_alias"

Then I changed the password for the new alias:

keytool -keypasswd -keystore my.keystore -alias new_alias -keypass oldAliasPassword -new newAliasPassword

And yes I've just tested it and uploaded a new version of the app with the new keystore alias

Thanks!

References:

Duplicating a private key with a new alias

2 Answers2