Predicate-Based Key Exchange

James Birkett; Douglas Stebila

Paper 2010/082

Predicate-Based Key Exchange

James Birkett and Douglas Stebila

Abstract

We provide the first description of and security model for authenticated key exchange protocols with predicate-based authentication. In addition to the standard goal of session key security, our security model also provides for credential privacy: a participating party learns nothing more about the other party's credentials than whether they satisfy the given predicate. Our model also encompasses attribute-based key exchange since it is a special case of predicate-based key exchange. We demonstrate how to realize a secure predicate-based key exchange protocol by combining any secure predicate-based signature scheme with the basic Diffie-Hellman key exchange protocol, providing an efficient and simple solution.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. Unknown where it was published
Keywords: predicate-based attribute-based key exchange security models protocols
Contact author(s): douglas @ stebila ca
History: 2010-02-17: last of 2 revisions; 2010-02-16: received; See all versions
Short URL: https://ia.cr/2010/082
License: CC BY

BibTeX

@misc{cryptoeprint:2010/082,
      author = {James Birkett and Douglas Stebila},
      title = {Predicate-Based Key Exchange},
      howpublished = {Cryptology {ePrint} Archive, Paper 2010/082},
      year = {2010},
      url = {https://eprint.iacr.org/2010/082}
}