Attack-resistant trust metrics for public key certification

  • Authors:
  • Raph Levien;Alexander Aiken

  • Affiliations:
  • University of California, Berkeley;University of California, Berkeley

  • Venue:
  • SSYM'98 Proceedings of the 7th conference on USENIX Security Symposium - Volume 7
  • Year:
  • 1998

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Abstract

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.