End-to-end encryption (E2EE)

https://github.com/bt-sync/sync-docker

https://github.com/syncthing/syncthing

https://github.com/ZitaneLabs/hdrop

https://github.com/signalapp/libsignal

https://github.com/nextcloud/end_to_end_encryption_rfc

https://github.com/irungentoo/toxcore