obscura

Example

$ obscura <(echo 'secret snowflake') > secret.enc
Password:
$ obscura -d secret.enc
Password:
secret snowflake

Install

pip

$ pip install obscura

Arch Linux

There is an AUR package available here: https://aur.archlinux.org/packages/obscura

If you do not know how to install AUR packages on Arch Linux, please consult the wiki