I have a 12 word string that I want to encrypt securely and easily with my own long password in order to store the (preferably readable) result in writing in paper.
I'm basically looking for a step by step implementation of what Cryptocurrency Security Standard call "strong encryption".
I'm finding it hard to find a reliable, easy to use implementation to use in Linux. Preferably open source, with a GUI, and where you can simply enter the password, the string to be encrypted, and get the resulting string satisfying the encryption standard linked to above.
What could be used for this?
CLI could also work if not too complicated. I want a non-coder to be able to do it.