Toward an Automatic Analysis of Web Service Security

Yannick Chevalier 1 Denis Lugiez 2 Michael Rusinowitch 3
3 CASSIS - Combination of approaches to the security of infinite states systems
FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies, INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Web services send and receive messages in XML syntax with some parts hashed, encrypted or signed, according to the WS-Security standard. In this paper we introduce a model to formally describe the protocols that underly these services, their security properties and the rewriting attacks they might be subject to. Unlike with usual security protocols, we have to address here the facts that: (1) The Web service receive/send actions are nondeterministic to accommodate the XML format and the lack of normalization in parsing XML messages. Our model is designed to permit non-deterministic operations. (2) The Web service message format is better modelled with multiset constructors than with fixed arity symbols. Hence we had to introduce an attacker model that handles associativecommutative operators. In particular we present a decision procedure for insecurity of Web services with messages built using encryption, signature, and other cryptographic primitives.
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Rapport
[Research Report] RR-6341, INRIA. 2007, pp.40
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https://hal.inria.fr/inria-00133996
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Soumis le : mercredi 31 octobre 2007 - 14:46:24
Dernière modification le : vendredi 9 mars 2018 - 11:25:20
Document(s) archivé(s) le : mardi 21 septembre 2010 - 14:58:43

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  • HAL Id : inria-00133996, version 2

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Yannick Chevalier, Denis Lugiez, Michael Rusinowitch. Toward an Automatic Analysis of Web Service Security. [Research Report] RR-6341, INRIA. 2007, pp.40. 〈inria-00133996v2〉

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