Workshops

pgp_workshop - [Signing and verifying signatures with OpenPGP]

usera (usera@undisclosed.example.com) — 2026-07-16T12:37:37+00:00

PGP Workshop Important note on PGP: PGP has been more and more criticized in the security community over the years (see for example here and here) for its complexity and flawed design. Therefore, it is not really a good idea to use PGP for sending ourselves encrypted mails, as opposed to use Signal (until some other better protocol is ready). As PGP is still quite used for signing packages, it can still be a good idea to learn it for verifying those packages.

e2ee

usera (usera@undisclosed.example.com) — 2026-06-19T12:28:07+00:00

End To End Encryption Workshop Here are the slides: What is end to end Encryption Usually, this is how you interact with someone: each time you make a request to the internet (a Google search, sending a mail, sending a Signal message, going to Facebook, everything), you do not talk directly to the person you want to talk to (in case you want to share something with someone). There is always a middle man, called a

tor_workshop

usera (usera@undisclosed.example.com) — 2026-06-19T11:20:21+00:00

Tor workshop The three types of encryption we usually talk about End to End Encryption Usually, this is how you interact with someone: each time you make a request to the internet (a Google search, sending a mail, sending a Signal message, going to Facebook, everything), you do not talk directly to the person you want to talk to (in case you want to share something with someone). There is always a middle man, called a

reencrypt_linux_post_install

usera (usera@undisclosed.example.com) — 2026-06-19T09:25:25+00:00

Reencrypt Linux Post Install This procedure is here to set up Full disk encryption on a Linux distribution (here we will show a procedure tested on Linux Mint that should work with other Debian based distributions such as Debian and Ubuntu) when this feature has not been set up during the installation.

backup

usera (usera@undisclosed.example.com) — 2026-06-19T09:14:32+00:00

Encrypted backups The 3-2-1 rule It is generally recommended to try to follow the 3-2-1 rule: at least 3 copies, on at least 2 devices, with at least one off-site copies. For example: 1) your computer 2) a local backup on an external disk 3) a cloud to store another backup

e2ee-presentation.pdf - created

usera (usera@undisclosed.example.com) — 2026-06-11T07:47:17+00:00

e2ee-presentation.odp - created

usera (usera@undisclosed.example.com) — 2026-06-11T07:46:42+00:00

starwars_8k_3columns.pdf - created

usera (usera@undisclosed.example.com) — 2026-06-11T07:27:44+00:00

signal_setup_1.png