A security protocol for mobile agents based upon the cooperation of sedentary agents

Authors:
Abdelhamid Ouardani;Samuel Pierre;Hanifa Boucheneb
Affiliations:
Mobile Computing and Networking Research Laboratory (LARIM), Department of Computer Engineering, ícole Polytechnique de Montréal, P.O. Box 6079, Station Centre-ville, Montréal, Qu&# ...;Mobile Computing and Networking Research Laboratory (LARIM), Department of Computer Engineering, ícole Polytechnique de Montréal, P.O. Box 6079, Station Centre-ville, Montréal, Qu&# ...;Mobile Computing and Networking Research Laboratory (LARIM), Department of Computer Engineering, ícole Polytechnique de Montréal, P.O. Box 6079, Station Centre-ville, Montréal, Qu&# ...
Venue:
Journal of Network and Computer Applications
Year:
2007

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Abstract

Despite its many benefits, mobile agent technology results in significant security threats from agents and hosts. This paper presents a protocol which protects mobile agents from malicious hosts. This protocol combines four concepts: the cooperation between a mobile agent and a sedentary agent; the reference execution (reliable platforms which shelter our cooperating sedentary agents); the cryptography and the digital signature to ensure safe inter-agent communication and time-limited execution (timeout). A dynamic approach which makes use of a timer to make it possible to detect a mobile agent's code re-execution was used. The attack on agent permanent modification was also dealt with. Moreover, the protocol is sufficiently robust so that it is durable and fault tolerant.