Date of Original Version



Conference Proceeding

Abstract or Description

Formal analysis of security protocols is largely based on a set of assumptions commonly referred to as the Dolev-Yao model. Two formalisms that state the basic assumptions of this model are related here: strand spaces and multiset rewriting with existential quantification. Although it is fairly intuitive that these two languages should be equivalent in some way, a number of modifications to each system are required to obtain a meaningful equivalence. We extend the strand formalism with a way of incrementally growing bundles in order to emulate an execution of a protocol with parametric strands. We omit the initialization part of the multiset rewriting setting, which formalizes the choice of initial data, such as shared public or private keys, and which has no counterpart in the strand space setting. The correspondence between the modified formalisms directly relates the intruder theory from the multiset rewriting formalism to the penetrator strands.




©2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.