GnuPG Workshop

GnuPG Workshop at PyCon FR 2016 (Rennes, France)

An introduction to public-key cryptography and GnuPG commands for daily use.

Transcript

1. GnuPG Workshop PyCon FR 2016
2. @pabluk | http://seminar.io Pablo SEMINARIO
4. TOPIC LIST • Intro GnuPG • Installation • Generate a keypair • Keyservers • Signing • Encrypt
5. MAIN CONCEPTS 1. Symmetric vs Asymmetric 2. 3. 4.
6. MAIN CONCEPTS 1. Symmetric vs Asymmetric 2. GnuPG c'est quoi ? 3. 4.
7. MAIN CONCEPTS 1. Symmetric vs Asymmetric 2. GnuPG c'est quoi ? 3. Web of trust 4.
8. MAIN CONCEPTS 1. Symmetric vs Asymmetric 2. GnuPG c'est quoi ? 3. Web of trust 4. Keysigning party
9. INSTALLATION gpg ou gpg2 SSID: PyConFr Password: welcome! SSID: PyConFR-GnuPGWorkshop Password: pyconfr2016
10. INSTALLATION # Debian/Ubuntu apt-get install gnupg2 # Fedora/CentOS yum install gnupg2 # Arch Linux pacman -S gnupg
11. gpg2 --full-gen-key • Some basic options
12. gpg2 --full-gen-key • Some basic options • Choosing the expiration date
13. We need to generate a lot of random bytes find ~/ -type f | xargs grep randomstring &> /dev/null
14. gpg2 --full-gen-key • Some basic options • Choosing the expiration date • Do I need a revocation certificate?
15. Listing private and public keys gpg2 --list-secret-keys gpg2 --list-keys
17. KEYSERVERS Publish your key gpg2 --send-keys <ID>
18. KEYSERVERS Getting keys gpg2 --recv-keys <ID>
19. KEYSERVERS Search keys gpg2 --search-keys <ID>
20. SIGNATURES Sign a file gpg2 --sign --detach-sign <file>
21. SIGNATURES Verify a signature gpg2 --verify <file>.sig <file>
22. ENCRYPTION Encrypt data gpg2 --encrypt --recipient <user-id> <file>
23. ENCRYPTION Decrypt data gpg2 --decrypt <file>.gpg
24. http://bit.ly/2ero5jR https://www.fourmilieres.net/#/form/cb48559cf62e4876 KEYSIGNING PARTY gpg2 --list-secret-keys --fingerprint
25. CONCLUSION
26. Merci! @pabluk