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7th USENIX Security Symposium, San Antonio, Texas

Attack-Resistant Trust Metrics for Public Key Certification

Raph Levien and Alex Aiken
University of California, Berkeley


This paper investigates the role of trust metrics in attack-resistant public key certification. We present an analytical framework for understanding the effectiveness of trust metrics in resisting attacks, including a characterization of the space of possible attacks. Within this framework, we establish the theoretical best case for a trust metric. Finally, we present a practical trust metric based on network flow that meets this theoretical bound.
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Last changed: 12 April 2002 aw
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