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CryptoParty April 2013 - Tor

Avatar for Frederic Jacobs Frederic Jacobs
April 19, 2013
Technology
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CryptoParty April 2013 - Tor

Slides for a talk about Tor to be given at a CryptoParty. Keynote download link: http://cl.ly/OQSS

Avatar for Frederic Jacobs

Frederic Jacobs

April 19, 2013
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Transcript

  1. anonymized web browsing

  2. What is anonymization?

  3. Routing

  4. The Standard Approach Alice Bob

  5. The VPN Approach Alice Bob

  6. The Tor Approach Alice Bob The Tor Network

  7. How to use?

  8. None

  9. Vidalia

  10. None

  11. Onion Routing

  12. Initialization : Exchange of session keys over TLS

  13. Route Initialization E N C R Y P T I

    O N Data Data AES(data, exit node session key) AES(data, relay2 session key) AES(data, relay 1 session key) Address Relay 2 Address Exit Node
  14. None
  15. None
  16. None
  17. None

  18. Socks

  19. What can you do?

  20. Relays

  21. Bridges

  22. Limitations

  23. Bonus: Hidden Services