Larry C. Puhl

A security design for a general purpose, self-organizing, multihop ad hoc wireless network

We present a security design for a general purpose, self-organizing, multihop ad hoc wireless network, based on the IEEE 802.15.4 low-rate wireless personal area network standard. The design employs elliptic-curve cryptography and the AES block cipher to supply message integrity and encryption services, key-establishment protocols, and a large set of extended security services, while at the same time meeting the low implementation cost, low power, and high flexibility requirements of ad hoc wireless networks.

Sensing and Systems Aspects of Fault Tolerant Electronics Applied to Vehicle Systems

New approaches to the design of automotive electronic systems can be used to achieve reliability and cost objectives for future vehicles. Present systems can benefit by applying fault tolerant design concepts. This paper is in two sections. The first section discusses the application of fault tolerant concepts to ECU design. The second portion covers the important role played by sensors in fault tolerant system designs.