PKC-Based DoS Attacks-Resistant Scheme in Wireless Sensor Networks

Abstract

PKC-Based DoS Attacks-Resistant Scheme in Wireless Sensor Networks

PKC-Based DoS Attacks-Resistant Scheme in Wireless Sensor Networks Public key cryptography (PKC) operations are heavy to resource-constrained sensor nodes. Therefore, by forcing it to perform a large number of false PKC operations, attackers can cripple a sensor node. In this letter, we propose a fully distributed and effective scheme that drops extra PKC request messages randomly beyond its ability to process. Our scheme is not only resistant to denial-of-service attacks based on PKC, but also energy-efficient.

Wireless sensor networks (WSN), sometimes called Wireless Sensor-Actuator Networks (WSAN), are spatially distributed autonomous sensors to monitor physical or environmental conditions and co-operatively move through the network to the main location. 

The Elliptic Curve Cryptography is one of the most used public key cryptography techniques. With the key size, ECC is more efficient. It is less vulnerable to attacks of security threat.

A Modified effective implementation of enhanced ECC with features like Elliptic Curve Digital Signature Algorithm (ECDSA) is to add more secure and effective data transfer along with key text information cipher. Modified ElGamal Scheme over elliptic curves is the enhanced scheme used in this ECC.