Passing dar encryption passwords

Hello,
I'm using Dar 2.5.17.
I'm using the -K option to encrypt a full backup. I then tried to create
a separate catalog for each file. I'm invoking dar like this, but with a
config file (DCF):
dar -C backup-cat -A backup -K algorithm:password -3 sha512

Now my intention is to have both the backup and backup-cat file
encrypted. I think dar is doing this, but it asks for a password to
decrypt the backup archive so that it can isolate the catalog.
  I thought that the -J option was to be used with the -A option so that
you could give dar the password without having to retype it a million
times, but the man page specifies that the -J option is not needed
anymore. However, even with -J, I'm still getting prompted for a
password to open the backup archive.

How do I give dar the password to use for both the backup archive and the
catalog extract?

Thanks,
David