Cryptology ePrint Archive: Report 1998/009
A Modular Approach to the Design and Analysis of Authentication and Key Exchange Protocols
Mihir Bellare, Ran Canetti, and Hugo Krawczyk
Abstract: We present a general framework for constructing and analyzing authentication
protocols in realistic models of communication networks. This framework
provides a sound formalization for the authentication problem and suggests
simple and attractive design principles for general authentication and key
exchange protocols. The key element in our approach is a modular treatment of
the authentication problem in cryptographic protocols; this applies to the
definition of security, to the design of the protocols, and to their analysis.
In particular, following this modular approach, we show how to systematically
transform solutions that work in a model of idealized authenticated
communications into solutions that are secure in the realistic setting of
communication channels controlled by an active adversary.
Using these principles we construct and prove the security of simple and
practical authentication and key-exchange protocols. In particular, we provide
a security analysis of some well-known key exchange protocols (e.g.
authenticated Diffie-Hellman key exchange), and of some of the techniques
underlying the design of several authentication protocols that are currently
being deployed on a large scale for the Internet Protocol and other
Category / Keywords: Authentication, key exchange, key distribution, Diffie-Hellman, secure computation, SKEME, formal analysis.
Publication Info: Appeared in the THEORY OF CRYPTOGRAPHY LIBRARY and has been included in the ePrint Archive.
Date: Received March 13, 1998.
Contact author: canetti at watson ibm com
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