Weighted Factors for Measuring Anonymity Services: A Case Study on Tor, JonDonym, and I2P

Authors: 

Khalid Shahbar and A. Nur Zincir-Heywood

Faculty of Computer Science
Dalhousie University Halifax, Canada

{Shahbar, Zincir}@ cs.dal.ca

Author Addresses: 

Faculty of Computer Science
Dalhousie University
6050 University Ave.
PO Box 15000
Halifax, Nova Scotia, Canada
B3H 4R2

Abstract: 

There are many systems that provide anonymity service for the users. Most of these systems work on the separation between the users’ identity and the final destination. The level of anonymity these services provide affected by several factors. Some of these factors are related to the design of the anonymity service itself. Others are related to how the system is used or what is the application/purpose the user wants to run over the anonymity service. In this paper we: (i) propose five factors that aim to measure the anonymity level from the user’s perspective; (ii) evaluate these factors on three anonymity services, namely Tor, JonDonym, and I2P as case studies; and (iii) present a mechanism to evaluate anonymity services based on our factors and measure the level of anonymity.

Tech Report Number: 
CS-2017-01
Report Date: 
January 27, 2017
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