560 research outputs found
Factors Impacting Key Management Effectiveness in Secured Wireless Networks
The use of a Public Key Infrastructure (PKI) offers a cryptographic solution that can overcome many, but not all, of the MANET security problems. One of the most critical aspects of a PKI system is how well it implements Key Management. Key Management deals with key generation, key storage, key distribution, key updating, key revocation, and certificate service in accordance with security policies over the lifecycle of the cryptography. The approach supported by traditional PKI works well in fixed wired networks, but it may not appropriate for MANET due to the lack of fixed infrastructure to support the PKI. This research seeks to identify best practices in securing networks which may be applied to new network architectures
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A two‐step authentication framework for Mobile ad hoc networks
The lack of fixed infrastructure in ad hoc networks causes nodes to rely more heavily on peer nodes for communication. Nevertheless, establishing trust in such a distributed environment is very difficult, since it is not straightforward for a node to determine if its peer nodes can be trusted. An additional concern in such an environment is with whether a peer node is merely relaying a message or if it is the originator of the message. In this paper, we propose an authentication approach for protecting nodes in mobile ad hoc networks. The security requirements for protecting data link and network layers are identified and the design criteria for creating secure ad hoc networks using several authentication protocols are analyzed. Protocols based on zero knowledge and challenge response techniques are presented and their performance is evaluated through analysis and simulation
Data Confidentiality in Mobile Ad hoc Networks
Mobile ad hoc networks (MANETs) are self-configuring infrastructure-less
networks comprised of mobile nodes that communicate over wireless links without
any central control on a peer-to-peer basis. These individual nodes act as
routers to forward both their own data and also their neighbours' data by
sending and receiving packets to and from other nodes in the network. The
relatively easy configuration and the quick deployment make ad hoc networks
suitable the emergency situations (such as human or natural disasters) and for
military units in enemy territory. Securing data dissemination between these
nodes in such networks, however, is a very challenging task. Exposing such
information to anyone else other than the intended nodes could cause a privacy
and confidentiality breach, particularly in military scenarios. In this paper
we present a novel framework to enhance the privacy and data confidentiality in
mobile ad hoc networks by attaching the originator policies to the messages as
they are sent between nodes. We evaluate our framework using the Network
Simulator (NS-2) to check whether the privacy and confidentiality of the
originator are met. For this we implemented the Policy Enforcement Points
(PEPs), as NS-2 agents that manage and enforce the policies attached to packets
at every node in the MANET.Comment: 12 page
Towards establishing trust in manet:An integrated approach for auto-configuration,Authentication and certification
In this paper, we discuss open issues regarding certification, auto-configuration and authentication of routing messages for mobile ad-hoc networks (MANET). We describe and discuss existing models for these operations and highlight their specific problems. Considering routing protocols usage, we propose new solutions based on protocol modifications and distributed certifications that can be integrated to establish
trust relationships for MANET operation and utilizatio
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