ecrypt

https://www.makeuseof.com/tag/encrypt-home-folder-ubuntu-installation-linux/

sudo apt-get install ecryptfs-utils

se logguer sous un autre utilisateur

sudo ecryptfs-migrate-home –u “username”

se logguer avec le compte encrypté et taper

ecryptfs-add-passphrase

sudo dnf install ecryptfs-utils
sudo authselect enable-feature with-ecryptfs

se logguer sous un autre utilisateur

sudo usermod -aG ecryptfs "username"
sudo ecryptfs-migrate-home –u “username”

Enter your login passphrase [username]: 

************************************************************************
YOU SHOULD RECORD YOUR MOUNT PASSPHRASE AND STORE IT IN A SAFE LOCATION.
  ecryptfs-unwrap-passphrase ~/.ecryptfs/wrapped-passphrase
THIS WILL BE REQUIRED IF YOU NEED TO RECOVER YOUR DATA AT A LATER TIME.
************************************************************************

egrep: warning: egrep is obsolescent; using grep -E
/usr/sbin/restorecon
/usr/sbin/restorecon

Done configuring.

========================================================================
Some Important Notes!

 1. The file encryption appears to have completed successfully, however,
    manu MUST LOGIN IMMEDIATELY, _BEFORE_THE_NEXT_REBOOT_,
    TO COMPLETE THE MIGRATION!!!

 2. If manu can log in and read and write their files, then the migration is complete,
    and you should remove /home/manu.eq8h7tTZ.
    Otherwise, restore /home/username.eq8h7tTZ back to /home/username.

 3. manu should also run 'ecryptfs-unwrap-passphrase' and record
    their randomly generated mount passphrase as soon as possible.

 4. To ensure the integrity of all encrypted data on this system, you
    should also encrypt swap space with 'ecryptfs-setup-swap'.
========================================================================