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CryptoParty April 2013 - Tor
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Frederic Jacobs
April 19, 2013
Technology
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130
CryptoParty April 2013 - Tor
Slides for a talk about Tor to be given at a CryptoParty. Keynote download link:
http://cl.ly/OQSS
Frederic Jacobs
April 19, 2013
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Transcript
anonymized web browsing
What is anonymization?
Routing
The Standard Approach Alice Bob
The VPN Approach Alice Bob
The Tor Approach Alice Bob The Tor Network
How to use?
None
Vidalia
None
Onion Routing
Initialization : Exchange of session keys over TLS
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
None
None
None
None
Socks
What can you do?
Relays
Bridges
Limitations
Bonus: Hidden Services