A Secure MANET Routing Protocol for Crisis Situations

A Secure MANET Routing Protocol for Crisis Situations

Martin Gilje Jaatun (Department of Software Engineering, Safety & Security, SINTEF Digital, Trondheim, Norway), Åsmund Ahlmann Nyre (HEMIT, Trondheim, Norway) and Inger Anne Tøndel (Department of Computer Science, Norwegian University of Science and Technology (NTNU), Trondheim, Norway & SINTEF Digital, Trondheim, Norway)
DOI: 10.4018/IJSSSP.2018100102
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Emergency and rescue operations are often carried out in areas where the network infrastructure cannot be relied on for message exchange between first responders. Since a fundamental feature of a Mobile Ad Hoc Network is the ability to operate independently of existing infrastructure, it is deemed a well-suited solution to first responders scenarios. In this article, the authors describe a security extension to the OLSR routing protocol specifically designed for first responder scenarios. The proposed protocol provides node authentication and access control using asymmetric encryption and digital certificates, and also offers a secure group communication scheme. A link encryption scheme is devised to allow for efficient encryption of data even in broadcast mode, without the need for a network-wide shared key. By utilising pairwise symmetric keys for link confidentiality, the authors' solution is both efficient and scalable.
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2. Background And State Of The Art

In this section we will present some existing MANET routing protocols (that typically do not offer any security), then present existing attempts to provide secure routing in MANETs. We will also say a few words on intrusion detection in MANETs, and close the section by relating what we have described to MANETs used in crisis situations.

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