Title
A rewriting-based forwards semantics for Maude-NPA
Abstract
The Maude-NRL Protocol Analyzer (Maude-NPA) is a tool for reasoning about the security of cryptographic protocols in which the cryptosystems satisfy different equational properties. It tries to find secrecy or authentication attacks by searching backwards from an insecure attack state pattern that may contain logical variables, in such a way that logical variables become properly instantiated in order to find an initial state. The execution mechanism for this logical reachability is narrowing modulo an equational theory. Although Maude-NPA also possesses a forwards semantics naturally derivable from the backwards semantics, it is not suitable for state space exploration or protocol simulation. In this paper we define an executable forwards semantics for Maude-NPA, instead of its usual backwards one, and restrict it to the case of concrete states, that is, to terms without logical variables. This case corresponds to standard rewriting modulo an equational theory. We prove soundness and completeness of the backwards narrowing-based semantics with respect to the rewriting-based forwards semantics. We show its effectiveness as an analysis method that complements the backwards analysis with new prototyping, simulation, and explicit-state model checking features by providing some experimental results.
Year
DOI
Venue
2014
10.1145/2600176.2600186
HotSoS
Keywords
Field
DocType
security and protection,cryptographic protocol analysis,specifying and verifying and reasoning about programs,model checking,reasoning modulo an equational theory,standard rewriting-based model checking,software/program verification,network protocols,term rewriting,logical narrowing-based reachability analysis,language classifications,protocol verification
Model checking,Cryptographic protocol,Modulo,Computer science,Theoretical computer science,Reachability,Rewriting,Soundness,Semantics,Executable
Conference
Citations 
PageRank 
References 
2
0.38
18
Authors
4
Name
Order
Citations
PageRank
Santiago Escobar145227.87
Catherine Meadows292889.05
José Meseguer39533805.39
S. Santiago4544.45