Encryption for Everyone
•Télécharger en tant que PPT, PDF•
3 j'aime•2,291 vues
The document provides an introduction to encryption basics including symmetric and asymmetric encryption. It explains how symmetric encryption works with Alice and Bob sharing a password to encrypt and decrypt messages. It also explains how asymmetric encryption works with Alice using Bob's public key to encrypt a message that only Bob can decrypt with his private key. The document recommends tools for encrypting email, disks, and browsing privately including Thunderbird, TrueCrypt, and Tor. It discusses some challenges with encryption including managing keys and speeds with Tor. The overall purpose is to educate about the importance of encryption for privacy.
Recommandé
Recommandé
Contenu connexe
Tendances
En vedette
En vedette (12)
Similaire à Encryption for Everyone
Similaire à Encryption for Everyone (20)
Plus de Coastal Pet Products, Inc.
Plus de Coastal Pet Products, Inc. (13)
Dernier
Dernier (20)
Encryption for Everyone
- 1. Encryption for Everyone: What We Do Is Secret Dru Streicher
- 2. Dru Streicher •Systems Administrator () •Hardware Hacker •Open Source Punk Rocker •Collector of Arcane Technology & Vinyl Records About Me
- 4. Encryption: What Is It for?
- 5. Why Is Encryption Important?
- 6. What Does It Look Like?
- 9. • Phonebook encryption • Plaintext: S-E-C-R-E-T • S = Jenny Smith 867-5309 • Cypher text then becomes 6 phone numbers • To decrypt you would have to find each phone number in the phone book • Easy to make & Hard to solve One Way Functions
- 10. HTTP vs HTTPS
- 11. HTTP vs. HTTPS
- 12. HTTP vs. HTTPS
- 13. HTTPS
- 14. Meet Alice & Bob
- 15. Alice wants to share a secret message with Bob
- 16. They don't want Eve to be able to get their secret message
- 18. Alice encrypts the message with a password and sends it to Bob
- 19. Even if Eve intercepts the message, without the password it can't be decrypted
- 20. Bob knows the password so he can decrypt the message
- 21. Real world use for symmetric encryption: Disk Encryption
- 22. Disk Encryption • There are ways to access your drive and get around all that logging in stuff • Encryption makes it private
- 23. Tools for disk encryption In linux
- 25. Alice and Bob have never met: They use Asymmetrical Encryption
- 26. Public vs. Private Keys
- 27. Alice and Bob trade public keys
- 28. Alice encrypts her secret message using Bob's public key
- 29. Bob can then use his private key to decrypt the message
- 30. Key Servers
- 31. Creating Keys Using the Command Line
- 37. If you lose your private key's password or your private key becomes compromised you can revoke the key. Revocation Certificate
- 41. Thunderbird & Enigmail: Your one stop for PGP & Email
- 42. • Walk you through creating a gpg key in wizard mode. • Manage all your keys • Encrypt and Decrypt mail Automagically • Sign outgoing email with your public key
- 43. Web Based Email Gmail and Yahoo and other web based email providers don't support encryption and decryption natively.
- 45. • The Onion Router • “Tor directs Internet traffic through a free, worldwide volunteer network consisting of more than three thousand relays to conceal a user's location or usage from anyone conducting network surveillance or traffic analysis.” -Wikipedia
- 46. How Tor Works
- 47. How Tor Works
- 48. How Tor Works
- 49. Tor Software
- 50. • Exit nodes can be monitored • Can be hard to configure • Speed Problems With Tor
- 51. • Virtual Private Network • Creates an encrypted point-to-point network • Allows you to remotely access your local network resources such as printers, servers, computers VPN
- 52. VPN
- 54. Hardware VPN Options • Lifehacker.com: How To • Raspberry Pi • Your Home Router: • DD-WRT • Tomato Router
- 55. • IM – Off The Record (OTR) plugin for Pidgin • Android – K9 • SMS Encryption – TextSecure for Android Other Encryption Tools
- 56. Encryption is About Privacy
- 57. More Info Web Beginners Guide - Steven Levy The Codebreakers - Dav
- 58. Questions?
- 59. Thanks • Ohio Linux Fest • Ian Gillespie for the great slides