Leaping Over the Firewall: A Review of Censorship Circumvention Tools Internet Circumvention Tools and Methods Evaluation and Review Leaping Over the Firewall: A Review of Censorship Circumvention Tools 2 3 Leaping Over the Firewall: A Review of Censorship Circumvention Tools Prepared by: Cormac Callanan (Ireland) Hein Dries-Ziekenheiner (Netherlands) Alberto Escudero-Pascual (Sweden) Robert Guerra (Canada) Internet Circumvention Tools and Methods Evaluation and Review Leaping Over the Firewall: A Review of Censorship Circumvention Tools 4 This report has been prepared within the framework of Contacts Freedom House funding. The views expressed in this document do not necessarily reflect those of Freedom For further information please contact: House. Mr. Cormac Callanan Tel: +353 87 257 7791 Email:
[email protected] Mr. Hein Dries-Ziekenheiner Tel: +31 71 711 3243 Email:
[email protected] Mr. Alberto Escudero-Pascual Tel: + 46 8 540 666 46 Email:
[email protected] Mr. Robert Guerra Tel: +1 202 296 5101 Email:
[email protected] The Authors 5 Cormac Callanan Ireland Hein was a technical advisor to the acclaimed Cormac Callanan is director of Aconite Internet Solutions Netherlands anti-spam team at OPTA and the (www.aconite.com) which provides expertise in policy Netherlands Independent Post and Telecommunications development in the area of cybercrime and internet Authority, and frequently advises on both technical security and safety. and legal issues related to cybercrime. He has provided training to law enforcement agencies around the world. Holding an MSc in Computer Science, he has over 25 He was responsible for the first-ever fine issued to a years of working experience on international computer spammer under the EU anti-spam legislation while at networks, and 10 years experience in the area of OPTA; as lead investigator, he was involved in many cybercrime.