A Class of Flexible and Efficient Key Management Protocols

  • Authors:
  • Colin Boyd

  • Affiliations:
  • -

  • Venue:
  • CSFW '96 Proceedings of the 9th IEEE workshop on Computer Security Foundations
  • Year:
  • 1996

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Abstract

Cryptographic protocols for key establishment normally include some means to allow participants to ensure that a key is new and not replayed from an old protocol run. When the key is generated by a mutually trusted server this is usually achieved by sending with the key a quantity known to be new. A different general method for achieving freshness in this context is proposed. A number of specific example protocols are given which have some practical advantages over previous published protocols.