White Papers

Multi-User Broadcast Authentication in Wireless Sensor Networks

Category: Software and Web Development, Networking and Communications

Overview Broadcast authentication is a critical security service in Wireless Sensor Networks (WSNs), as it allows the mobile users of WSNs to broadcast messages to multiple sensor nodes in a secure way. Although symmetric-key-based solutions such as ÂµTESLA and multilevel ÂµTESLA have been proposed, they all suffer from severe energy-depletion attacks resulting from the nature of delayed message authentication. This paper presents several efficient public-key-based schemes to achieve immediate broadcast authentication and thus avoid the security flaw inherent in the ÂµTESLA-like schemes. Their schemes are built upon the unique integration of several cryptographic techniques, including the Bloom filter, the partial message recovery signature scheme and the Merkle hash tree.

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Publisher: Worcester Polytechnic Institute
File Format: PDF
Date Published: Apr 23, 2009
Format: White Papers
Topics: Wireless, Monitoring Systems, Mobile - Wireless Communications

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