Usability of Tor

Jeremy Clark 1 , P.C. van Oorschot 2 , and Carlisle Adams 1 Presented by Jeremy Clark Usability of Anonymous Web Browsing: An Examination of Tor Interfaces and Deployability 1 2

Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Anonymous Web Browsing ,[object Object],[object Object],[object Object],[object Object],[object Object]

Onion Routing in 30 seconds © CBS 2006. Used under the fair dealings clause in the Canada Copyright Act .

A Mental Model T or Privoxy Internet http, https, ftp, etc SOCKS Firefox Vidalia

A Mental Model T or Privoxy Internet http, https, ftp, etc SOCKS Firefox Torbutton/FoxyProxy Vidalia

A Mental Model Internet T or XeroBank

Why Tor? ,[object Object],[object Object],[object Object],[object Object]

Cognitive Walkthrough ,[object Object],[object Object],[object Object],[object Object]

Core Tasks ,[object Object],[object Object],[object Object],[object Object],[object Object]

Usability Guidelines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dangerous Errors ,[object Object],[object Object],[object Object],[object Object]

Usability Guidelines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tor Installation (Task 1) ,[object Object],[object Object],[object Object],[object Object]

Manual Configuration (Task 2) ,[object Object],[object Object],[object Object],[object Object]

Configuring Firefox ,[object Object],[object Object],[object Object],[object Object]

Running Applications ,[object Object],[object Object],[object Object]

Manual Configuration (Task 2) ,[object Object],[object Object],[object Object]

Manual Configuration ,[object Object],[object Object],[object Object]

Torbutton (w/ Tor, Vidalia, & Privoxy) ,[object Object],[object Object],[object Object]

FoxyProxy (w/ Tor and Vidalia) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

XeroBank ,[object Object],[object Object],[object Object]

Comparison and Summary Installation Configuration Verification Disabling Manual Config Difficult Very Difficult Easy Very Difficult Torbutton Difficult Easy Easy Very Easy FoxyProxy Difficult Very Easy Easy Easy XeroBank Very Easy Very Easy Very Difficult Very Easy

Concluding Remarks ,[object Object],[object Object],[object Object]

Usability of Tor

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