| A. Huima. EOEcient innite-state analysis of security protocols. In Proc. Formal methods and security protocols, FLOC Workshop, Trento, 1999. INRIA On the reachability problem in cryptographic protocols 25 |
....ground terms of a given rst order signature. Standard tools for symbolic computation such as syntactic unication and tree automata are then available. RR n# 3915 4 Roberto M. Amadio Denis Lugiez We should point out that this approach is not new. For instance, it is the one followed by Huima in [Hui99] where a decidability result for the the reachability problem is claimed (we will mention in section 2 some technical dioeerences) The proof of this result is actually presented in Huima s master s thesis, it runs for about 45 pages and it is quite involved. Our failure to fully understand this ....
....2.1 (1) If T M then S(T ) A(T ) M. 2) If T M(m) then S(T ) A(T ) M(m) for any m 0. 3) Dene a function G as G(T ) T [ ft 1 ; t 2 j ht 1 ; t 2 i 2 Tg [ ft 1 j E(t 1 ; t 2 ) t 2 2 Tg Then A(T ) S n2 G n (T ) Related modelling We point out that Monniaux [Mon99] and Huima [Hui99] consider a signature with constructors such as encryption and pairing and destructors such as decryption and projection. In their approach, terms are considered up to the equality induced by a canonical term rewriting system. In our approach, the decryption and projection functions are handled ....
A. Huima. EOEcient innite-state analysis of security protocols. In Proc. Formal methods and security protocols, FLOC Workshop, Trento, 1999. INRIA On the reachability problem in cryptographic protocols 25
....tools. Paulson [14] uses induction on traces to formally prove protocol correctness using Isabelle. Bolignano [4] uses a state based analysis of the protocols, proving invariant properties, with the proofs subsequently mechanized in Coq. Although these approaches are not automatic, recent work [10, 16] suggests that certain authentication protocols can be modelled in decidable fragments of rst order logic. In all the approaches mentioned above the attacker must be explicitly modelled. A more recent trend has been the use of name passing process calculi for studying cryptographic authentication ....
A. Huima. EOEcient innite-state analysis of security protocols. In Proc. Formal methods and security protocols, FLOC Workshop, Trento, 1999.
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