Symmetric link key management for secure neighbor discovery in a decentralized wireless sensor network
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Authors
Chew, Kelvin T.
Subjects
wireless sensor network
6LOWPAN
key management
neighbor discovery
symmetric cryptography
identity-based cryptography
Diffie-Hellman key exchange
cyber
6LOWPAN
key management
neighbor discovery
symmetric cryptography
identity-based cryptography
Diffie-Hellman key exchange
cyber
Advisors
Thulasiraman, Preetha
Date of Issue
2017-09
Date
Sep-17
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
Wireless sensor networks provide a low-signature communications system that can be used for a wide variety of military applications. These networks are vulnerable to intrusion, however, and must balance security with performance and longevity. The neighbor discovery process is vital for nodes to maintain network connectivity but introduces security vulnerabilities; therefore, a lightweight security protocol is necessary to prevent unauthorized nodes from accessing network data and resources. In this thesis, we focus on the management of encryption keys in a resource-limited, peer-to-peer, decentralized network. Existing protocols for securing the neighbor discovery process use public key encryption, which is too computationally expensive for low-powered, resource-constrained IEEE 802.15.4-enabled devices. We therefore develop a key management scheme that modifies the Neighbor Discovery Protocol (NDP) and Secure Neighbor Discovery (SEND) protocol and implements the Diffie-Hellman key exchange algorithm for symmetric key management. We simulate our scheme in MATLAB to demonstrate its effectiveness in securing the neighbor discovery protocol while providing energy efficiency, key security, and error resistance.
Type
Thesis
Description
Series/Report No
Department
Electrical Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.