InforLorV4, Main, Exploration, bibRecord, 001A17

Intruder deducibility constraints with negation. Decidability and application to secured service compositions.

Identifieur interne : 001A17 ( Main/Exploration ); précédent : 001A16; suivant : 001A18

Intruder deducibility constraints with negation. Decidability and application to secured service compositions.

Auteurs : Tigran Avanesov [France] ; Yannick Chevalier [France] ; Michaël Rusinowitch [France] ; Mathieu Turuani [France]

Source :

RBID : Hal:hal-00719011

English descriptors

mix :
- Web services, cryptographic protocols, deducibility constraints, formal methods, orchestration, security policy, separation of duty, tool.

Abstract

The problem of finding a mediator to compose secured services has been reduced in our former work to the problem of solving deducibility constraints similar to those employed for cryptographic protocol analysis. We extend in this paper the mediator synthesis procedure by a construction for expressing that some data is not accessible to the mediator. Then we give a decision procedure for verifying that a mediator satisfying this non-disclosure policy can be effectively synthesized. This procedure has been implemented in CL-AtSe, our protocol analysis tool. The procedure extends constraint solving for cryptographic protocol analysis in a significative way as it is able to handle negative deducibility constraints without restriction. In particular it applies to all subterm convergent theories and therefore covers several interesting theories in formal security analysis including encryption, hashing, signature and pairing.

Url:

https://hal.inria.fr/hal-00719011

Affiliations:

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Le document en format XML

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<term>cryptographic protocols</term>
<term>deducibility constraints</term>
<term>formal methods</term>
<term>orchestration</term>
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<front><div type="abstract" xml:lang="en">The problem of finding a mediator to compose secured services has been reduced in our former work to the problem of solving deducibility constraints similar to those employed for cryptographic protocol analysis. We extend in this paper the mediator synthesis procedure by a construction for expressing that some data is not accessible to the mediator. Then we give a decision procedure for verifying that a mediator satisfying this non-disclosure policy can be effectively synthesized. This procedure has been implemented in CL-AtSe, our protocol analysis tool. The procedure extends constraint solving for cryptographic protocol analysis in a significative way as it is able to handle negative deducibility constraints without restriction. In particular it applies to all subterm convergent theories and therefore covers several interesting theories in formal security analysis including encryption, hashing, signature and pairing.</div>
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<tree><country name="France"><noRegion><name sortKey="Avanesov, Tigran" sort="Avanesov, Tigran" uniqKey="Avanesov T" first="Tigran" last="Avanesov">Tigran Avanesov</name>
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<name sortKey="Rusinowitch, Michael" sort="Rusinowitch, Michael" uniqKey="Rusinowitch M" first="Michaël" last="Rusinowitch">Michaël Rusinowitch</name>
<name sortKey="Turuani, Mathieu" sort="Turuani, Mathieu" uniqKey="Turuani M" first="Mathieu" last="Turuani">Mathieu Turuani</name>
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Intruder deducibility constraints with negation. Decidability and application to secured service compositions.

Intruder deducibility constraints with negation. Decidability and application to secured service compositions.

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