I currently have a keystore, with a particular password that only I should know. I now need to give access to that keystore to someone else, so I would like to either:
1) Change the password, so I can share it with others and let them sign
2) Create a different password and allow them to sign with it.
Is this possible? and - if yes - how?
Keystore only has one password. You can change it using keytool:
keytool -storepasswd -keystore my.keystore
To change the key's password:
keytool -keypasswd -alias <key_name> -keystore my.keystore