For some unknown reason, rclone obfuscates all passwords
stored in its configuration file. To do so, it just encrypts the password with
AES in counter mode using the static key
9c935b48730a554d6bfd7c63c886a92bd390198eb8128afbf4de162b8b95f638
(implemented in
fs/config/obscure/obscure.go).
This obviously does not add any security at all and is just annoying if you
want to retrieve a password from the configuration for whatever reason.
This little 5 line Go program will look for a rclone configuration in the
standard locations (typically ~/.config/rclone/rclone.conf), decode the
passwords and print them. To use it, just clone the repository, run go build
and execute the resulting ./rclone-unobscure binary.