Support for unlocking multiple encrypted devices with same key
I have multiple encrypted devices that share the same encryption key. Rather than having to type the same key multiple times upon boot, it would be great it plymouth-encrypt could have support to try unlocking all drives with the passphrase provided in the prompt. Then it could prompt for a new passphrase if the one previously provided fails to unlock a device.
Use cases and more details on the need for this feature can be found here.
What I'm suggesting would be something like archlinux_encrypthook but with the graphical interface from plymouth-encrypt.
Another approach to this has been mentioned here.