European Journal of Computer Science and Information Technology (EJCSIT)

EA Journals


An Energy-Efficient ECC Scheme for Wireless Sensor Networks (Published)

The field of wireless sensor networks (WSNs) combines sensing, computation, and communication into a single tiny device called a sensor. Sensors are equipped with RF radio, processor, memory and hardware. They are also battery powered and therefore have severe energy, bandwidths and memory constraints, and low computational capability. Communication over WSNs is still known to be attack-prone because the constraints of sensors hinder the development of secure modern cryptographic solutions. The Elliptic Curve Cryptography (ECC) technique and the Rivest Shamir Adleman (RSA) algorithm are the two most popular public key cryptographic schemes deployed over wireless networks. The effectiveness of the ECC technique over RSA has been demonstrated in this research. While ECC with very large key sizes is thought to be computationally expensive, it is possible to use smaller primes, or smaller finite fields, with elliptic curves and achieve a level of security comparable to that for much larger integer mod n. Measurements have been made to prove that ECC algorithms can be executed within the memory limits of sensor nodes. An enhanced ECC scheme with collision resistant hash functions is proposed in this research.

Keywords: ECC, RSA, Security, Wireless Sensor Networks, communication, sensors

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