How to Prevent Type Flaw Attacks on Security Protocols

  • Authors:
  • James Heather;Gavin Lowe;Steve Schneider

  • Affiliations:
  • -;-;-

  • Venue:
  • CSFW '00 Proceedings of the 13th IEEE workshop on Computer Security Foundations
  • Year:
  • 2000

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Abstract

A type flaw attack on a security protocol is an attack where a field that was originally intended to have one type is subsequently interpreted as having another type. A number of type flaw attacks have appeared in the academic literature. In this paper, we prove that type flaw attacks can be prevented using a simple technique of tagging each field with some information indicating its intended type.