Practical Broadcast Authentication in Sensor Networks

Broadcast authentication is a critical security service in sensor networks; it allows a sender to broadcast messages to multiple nodes in an authenticated way. µTESLA and multi-level µTESLA have been proposed to provide such services for sensor networks. However, none of these techniques are scalable in terms of the number of senders. Though multi-level µTESLA schemes can scale up to large sensor networks (in terms of receivers), they either use substantial bandwidth and storage at sensor nodes, or require significant resources at senders to deal with DOS attacks. This paper presents efficient techniques to support a potentially large number of broadcast senders using µTESLA instances as building blocks. The proposed techniques are immune to the DOS attacks. This paper also provides two approaches, a revocation tree based scheme and a proactive distribution based scheme, to revoke the broadcast authentication capability from compromised senders. The proposed techniques are imple...

• Type: Conference
• Year: 2005
• Where: MOBIQUITOUS
• Authors: Donggang Liu, Peng Ning, Sencun Zhu, Sushil Jajodia
• Keywords: Broadcast Authentication, MOBIQUITOUS 2005, Multi-level µTESLA, Sensor Networks