Accession Number : ADA465464


Title :   Tor: The Second-Generation Onion Router


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Dingledine, Roger ; Mathewson, Nick ; Syverson, Paul


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/a465464.pdf


Report Date : Jan 2004


Pagination or Media Count : 18


Abstract : We present Tor, a circuit-based low-latency anonymous communication service. This second-generation Onion Routing system addresses limitations in the original design by adding perfect forward secrecy, congestion control, directory servers, integrity checking, configurable exit policies, and a practical design for location-hidden services via rendezvous points. Tor works on the real-world Internet, requires no special privileges or kernel modifications, requires little synchronization or coordination between nodes, and provides a reasonable tradeoff between anonymity, usability, and efficiency. We briefly describe our experiences with an international network of more than 30 nodes. We close with a list of open problems in anonymous communication.


Descriptors :   *COMMUNICATIONS NETWORKS , WIDE AREA NETWORKS , SECURE COMMUNICATIONS


Subject Categories : Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE