Safely Measuring Tor

Learn about safely measuring the Tor network in this conference talk presented at CCS 2016. Explore the challenges and importance of measuring Tor, understand the use of circuits and directory authorities, and discover PrivCount - a secure measurement system. Gain insights into the initialization, configuration, and execution of PrivCount, as well as its security features. Examine the collection phases and analyze results related to exit policies and the number of unique Tor users. Delve into the research conducted by Rob Jansen and Aaron Johnson from the U.S. Naval Research Laboratory, presented at the 23rd ACM Conference on Computer and Communications Security in Vienna, Austria.

Intro
Background: Using Circuits
Background: Directory Authorities
Motivation: Why Measure Tor?
Motivation: Measurement Challenges
Motivation: Missing Measurements
PrivCount: Initialization
PrivCount: Configuration
PrivCount: Execution - Setup
PrivCount: Security
Collection Phases
Results: Exit Policies
Results: Number of Unique Users