At the time when corporations and states want to control our online lives and ban encryption we will dedicate a workshop to safer online communication. We will learn how to use strong passwords and passphrases, use Virtual Private Networks to access internet, send encrypted emails and add plugins that disable online tracking to our web browsers. LFU, 16 March 2019

1. Safer online
communication
Maja Kraljic, @_22nds
LFU, March 16 2019

2. Contents
● Passwords and Password Manager
● VPN
● Email encryption
● Browsers and add-ons

3. #passwords
Let’s talk about
passwords!

4. Compromised accounts - https://haveibeenpwned.com/

5. #passwords

6. Entropy as a measure of
password strength
2^103
#passwords

7. Password
Managers
#passwords

8. KeePassXC - https://keepassxc.org/

9. Password generator

10. Passphrase generator

11. VPN
#vpn

12. VPN
Foto: https://thebestvpn.com/what-is-vpn-beginners-guide/

13. RiseupVPN - https://riseup.net/en/vpn/betatest

14. Encrypted Email

15. Why Encrypted
Email?

16. How Encryption
Works?

17. Public and private keys

18. Encrypt & Decrypt a Message
Hello
Cathy!
Hello
Cathy!
Encrypt
Decrypt
5GWSE3T
H6VFN7JE
Cathy’s
public key
Cathy’s
private keyCathy
Alex

19. ● Generate public and private key
● Share the public key so others can
encrypt the message
● Use private key to decrypt
message
● Sign the message with your
private key

20. Setup Email Client

21. Thunderbird - https://www.thunderbird.net

22. Gmail Settings - Enable IMAP -
https://mail.google.com/mail/#settings/fwdandpop

23. Thunderbird - Settings for Existing Email Account

24. Thunderbird - Settings for new account

25. Thunderbird - Successful setup

26. Setup Email
Encryption

27. Linux: GnuPG - https://www.gnupg.org/download/
Mac: GPG Tools - https://gpgtools.org/
Windows: Gpg4Win - https://gpg4win.org/

28. Enigmail -
https://addons.thunderbird.net/en-US/thunderbird/addon/enigmail/

29. Enable OpenPGP

30. Enigmail > Key Management

31. Enigmail > Setup Wizard

32. Share Your
Public Key

33. Enigmail > Attach My Public Key

34. Import keys

35. Sign & Encrypt
Email

36. Sign & Encrypt Email

37. Browsers
&
Add-ons

38. HTTPS everywhere

39. Privacy Possum

40. Resources
https://ssd.eff.org
https://securityinabox.org