Ability to select decryption key

[svvac]

Expected Behavior

Given a message encrypted to multiple recipients, I'd expect OKC to prompt me for which key to use for decryption if it knows multiple secret keys from that list.

Current Behavior

OKC asks for the password of the first key it knows from the message. Canceling aborts the operation and does not try the following keys.

Possible Solution

If multiple candidate keys are found, present the user with a select field allowing to choose which key to use.

Context

Using Password Store configured to encrypt to a Main key (for daily use) and a Backup key.

Your Environment

• Android Version: 14
• OpenKeychain Version: 5.8.2
• From Google Play or F-Droid?: F-Droid

[pspoe]

If you are willing to implement this CR, please also consider the case of a hidden recipient ('gpg --list-packets' shows ID 0000000000000000). In this case the decryption key should be tried (see gpg option --try-secret-key)