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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 5    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 5,May 2012
ME-SMOCK: A Memory Efficient Public Key Scheme For WSN
Full Text(PDF, )  PP.I043-I046  
J. Divya, Margret Johnson
— Cryptography, Key Management, Key Predistribution, Resilience, WSN
Wireless Sensor Networks (WSNs) are constructed by a set of small devices, called the sensor nodes, with sensing and wireless communication capabilities. They are widely used in many applications such as military, ecological, and health-related areas. WSNs have certain constraints like low computation capability, limited energy resources, small memory and poor resilience to physical capture. Also, they are mostly deployed in adverse or even in hostile environment. These constraints and issues make security in WSNs a challenge. So, efficient key distribution and management schemes are must. In this paper, a novel key management scheme based on deployment knowledge has been proposed which adds memory efficiency to the existing public key based integrity scheme. Using this scheme memory efficiency can be improved by minimizing the total number of keys to be stored in each sensor node without altering the security.
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