On Message Integrity in Cryptographic Protocols

  • Authors:
  • Stuart G. Stubblebine;Virgil D. Gligor

  • Affiliations:
  • -;-

  • Venue:
  • SP '92 Proceedings of the 1992 IEEE Symposium on Security and Privacy
  • Year:
  • 1992

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Abstract

We present an operational model for message integrityin cryptographic protocols, discuss message integrityrequirements, and suggest message structures that satisfy those requirements. We derive a messagesplicing decomposition invariant of the Cipher BlockChaining (CBC) mode of encryption, and use it toidentify heretofore unknown vulnerabilities of well-known protocols. The suggested message structures remove these vulnerabilities.