Recursion vs. Replication in Simple Cryptographic Protocols

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Publikace nespadá pod Pedagogickou fakultu, ale pod Fakultu informatiky. Oficiální stránka publikace je na webu muni.cz.
Název česky Rekurze a replikace a jednoduchych kryptografickych protokolech
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HUTTEL Hans SRBA Jiří

Rok publikování 2005
Druh Článek ve sborníku
Konference Proceedings of 31st Annual Conference on Current Trends in Theory and Practice of Informatics (SOFSEM'05)
Fakulta / Pracoviště MU

Fakulta informatiky

Citace
Obor Informatika
Klíčová slova cryptographic protocols; recursion; replication; verification
Popis We use some recent techniques from process algebra to draw several conclusions about the well studied class of ping-pong protocols introduced by Dolev and Yao. In particular we show that all nontrivial properties, including reachability and equivalence checking wrt. the whole van Glabbeek's spectrum, become undecidable for a very simple recursive extension of the protocol. The result holds even if no nondeterministic choice operator is allowed. We also show that the extended calculus is capable of an implicit description of the active intruder, including full analysis and synthesis of messages in the sense of Amadio, Lugiez and Vanackere. We conclude by showing that reachability analysis for a replicative variant of the protocol becomes decidable.
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