earticle

영어

Wireless Network Systems are usually deployed in hostile environments where they en- countered a wide variety of malicious attacks. A wireless sensor network (WSN) is a wire- less network composed of a large number of sensor nodes. In WSNs the scarcest resource is energy which includes low power, less storage space, low computation ability and short communication range. For this reason, algorithmic research in WSN mostly focuses on the study and design of energy aware algorithms for data computation. This problem becomes harder in the case of security, as most of the security algorithms are quite heavy. Although symmetric cryptography may be one of the approaches to solve the problem due to their small computation requirement. In order to further reduce the computational cost of any protocol for WSN, Elliptic curve cryptography (ECC) has been attractive to the researcher due to its smaller key size and its high strength of security. Scalar multiplication is most important cryptographic operation in elliptical curve cryptography. This paper proposes the e±cient scalar multiplication algorithms for WSNs which are resistant of side channel at- tack.