%0 Journal Article %T Secure and Energy Efficient Key Management Protocol for Ad hoc Sensor Network %J Engineering and Technology Journal %I University of Technology-Iraq %Z 1681-6900 %A R. Zaghar, Dhafer %A Abdulbaki Juma, Bassim %A M. Nafel, Yaarob %D 2009 %\ 08/01/2009 %V 27 %N 11 %P 2189-2204 %! Secure and Energy Efficient Key Management Protocol for Ad hoc Sensor Network %K Recent advances in wireless communications and electronics have helped to develop sensor nodes which are low %K cost %K low %K power %K multifunctional %K small in size and communicate in short distances %K These tiny sensor nodes %K which consist of sensing %K data processing %K and communicating components %K leverage the idea of sensor networks %K Ad hoc sensor network is a multihop network made of hundreds of sensor nodes %K This Paper presents a proposed secure and energy efficient decentralized key management protocol %K The proposed protocol combines three schemes %K key establishment %K key update and new node addition scheme %K The energy consumption of the proposed key management is analyzed and compared with those of the formal protocols %K The analysis shows an advantage in term of energy consumption over the previous work %R 10.30684/etj.27.11.3 %X Recent advances in wireless communications and electronics have helped to develop sensor nodes which are low-cost, low-power, multifunctional, small in size and communicate in short distances. These tiny sensor nodes, which consist of sensing, data processing, and communicating components, leverage the idea of sensor networks. Ad hoc sensor network is a multihop network made of hundreds of sensor nodes. This Paper presents a proposed secure and energy efficient decentralized key management protocol. The proposed protocol combines three schemes; key establishment, key update and new node addition scheme. The energy consumption of the proposed key management is analyzed and compared with those of the formal protocols. The analysis shows an advantage in term of energy consumption over the previous work. %U https://etj.uotechnology.edu.iq/article_38230_65d2f047d57b1ff2c2f3c1133ddad5f2.pdf