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Case Number 100060 - A Novel Authentication Scheme for Ad hoc and Sensor Wireless Networks

Description:  An ad hoc (or "spontaneous") network is a local area network that exists only for the duration of the communication. Such a wireless network is usually employed in an emergency situation or in an unknown territory so that efficient and quick monitoring ofa nearby environment can be provided. Wireless ad hoc networks transmit packets of information and forward them from one node to another in peer to peer mode, without a base station that normally coordinates activities of mobile hosts. This allows for unrestricted mobility while still operating within a network. The current technology, however, is limited. As wireless ad hoc and sensor networks are more susceptible to attacks, security is critical, requiring authentication and encryption of data. Unfortunately, traditional means of data protection cannot be effectively used due to the power and computational constraints of wireless ad hoc systems. The present invention describes a novel method and apparatus for providing authentication of digital communication in an ad hoc network, protecting transmitted information from eavesdropping, replay and spoofing. This method minimizes power and computational overhead, allowing practical use in wireless ad hoc networks. This invention can be incorporated into existing software and is compatible with all systems.

  1. Authentication scheme provides security not currently available in wireless ad hoc and sensor networks
  2. Utilizes hierarchical architecture to reduce computational overhead and delays inherent in current methods ofauthentication
  3. Minimizes power consumption, allowing for more practical use

Issued US Patent # 7,096,359, Authentication scheme for ad hoc and sensor wireless networks

Venkatraman, L., and Agrawal, D.P. "A Novel Authentication Scheme for Ad hoc Networks". Proceedings of the Wireless Conununications and Networking Conference, February 28, 2000.

For more information please contact Doug Nienaber at 513-558-3098 or

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