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Protecting mobile agents from external replay attacks

Garrigues, Carles; Migas, Nikos; Buchanan, William; Robles, Sergi; Borrell, Joan


Carles Garrigues

Nikos Migas

Sergi Robles

Joan Borrell


This paper presents a protocol for the protection of mobile agents against external replay attacks. This kind of attacks are performed by malicious platforms when dispatching an agent multiple times to a remote host, thus making it reexecute part of its itinerary. Current proposals aiming to address this problem are based on storing agent identifiers, or trip markers, inside agent platforms, so that future reexecutions can be detected and prevented. The problem of these solutions is that they do not allow the agent to perform legal migrations to the same platform several times. The aim of this paper is to address these issues by presenting a novel solution based on authorisation entities, which allow the agent to be reexecuted on the same platform a number of times determined at runtime. The proposed protocol is secure under the assumption that authorisation entities are trusted.

Journal Article Type Article
Publication Date 2009-02
Deposit Date Dec 22, 2010
Journal Journal of Systems and Software
Print ISSN 0164-1212
Electronic ISSN 1873-1228
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 82
Issue 2
Pages 197-206
ISBN 0164-1212
Keywords Mobile agents; security; malicious hosts; replay attacks; trip marker; protected itinerary;
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