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ABSTRACT

Hidden credentials are useful in protecting sensitive resource requests, resources, policies, and credentials. We propose a significant performance improvement when implementing hidden credentials using Boneh/Franklin Identity Based Encryption. We also propose a substantially improved secret splitting scheme for enforcing complex policies, and show how it improves concealment of policies from nonsatisfying recipients.

REFERENCES

• 1: Dirk Balfanz , Glenn Durfee , Narendar Shankar , Diana Smetters , Jessica Staddon , Hao-Chi Wong, Secret Handshakes from Pairing-Based Key Agreements, Proceedings of the 2003 IEEE Symposium on Security and Privacy, p.180, May 11-14, 2003
• 2: Mihir Bellare , Chanathip Namprempre, Authenticated Encryption: Relations among Notions and Analysis of the Generic Composition Paradigm, Proceedings of the 6th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology, p.531-545, December 03-07, 2000
• 3: J. Benaloh , J. Leichter, Generalized secret sharing and monotone functions, Proceedings on Advances in cryptology, p.27-35, February 1990, Santa Barbara, California, United States
• 4: E. Bertino , E. Ferrari , A. Squicciarini, X -TNL: An XML-based Language for Trust Negotiations, Proceedings of the 4th IEEE International Workshop on Policies for Distributed Systems and Networks, p.81, June 04-06, 2003
• 5: Piero Bonatti , Pierangela Samarati, Regulating service access and information release on the Web, Proceedings of the 7th ACM conference on Computer and communications security, p.134-143, November 01-04, 2000, Athens, Greece [doi>10.1145/352600.352620]
• 6: Dan Boneh , Matthew K. Franklin, Identity-Based Encryption from the Weil Pairing, Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology, p.213-229, August 19-23, 2001
• 7: Eiichiro Fujisaki , Tatsuaki Okamoto, Secure Integration of Asymmetric and Symmetric Encryption Schemes, Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology, p.537-554, August 15-19, 1999
• 8: Jason E. Holt , Robert W. Bradshaw , Kent E. Seamons , Hilarie Orman, Hidden Credentials, Proceedings of the 2003 ACM workshop on Privacy in the electronic society, October 30, 2003, Washington, DC [doi>10.1145/1005140.1005142]
• 9: Ninghui Li , Wenliang Du , Dan Boneh, Oblivious signature-based envelope, Proceedings of the twenty-second annual symposium on Principles of distributed computing, p.182-189, July 13-16, 2003, Boston, Massachusetts [doi>10.1145/872035.872061]
• 10: K. E. Seamons, M. Winslett, and T. Yu. Limiting the disclosure of access control policies during automated trust negotiation. In Network and Distributed System Security Symposium, pages 109--124, San Diego, CA, Feb. 2001.
• 11: W. H. Winsborough, K. E. Seamons, and V. E. Jones. Automated trust negotiation. In DARPA Information Survivability Conference and Exposition, volume I, pages 88--102, Hilton Head, SC, Jan. 2000. IEEE Press.
• 12: Marianne Winslett , Ting Yu , Kent E. Seamons , Adam Hess , Jared Jacobson , Ryan Jarvis , Bryan Smith , Lina Yu, Negotiating Trust on the Web, IEEE Internet Computing, v.6 n.6, p.30-37, November 2002 [doi>10.1109/MIC.2002.1067734]
• 13: Ting Yu , Marianne Winslett, A Unified Scheme for Resource Protection in Automated Trust Negotiation, Proceedings of the 2003 IEEE Symposium on Security and Privacy, p.110, May 11-14, 2003

INDEX TERMS

Primary Classification:
  K. Computing Milieux
  K.6 MANAGEMENT OF COMPUTING AND INFORMATION SYSTEMS
      K.6.5 Security and Protection (D.4.6, K.4.2)
          Subjects: Authentication

General Terms:
Algorithms, Security, Theory

Keywords:
authentication, credentials, identity based encryption, privacy, secret sharing, trust negotiation