International Journal of Science and Technology (IJST)

A Study of Cryptographic Scheme for Safe Data Transfer in Wireless Sensor Network Involving Logic Gate

The objective of this paper is to establish a lightweight logic gate–based cryptographic technique for secure data transfer in small to medium Wireless Sensor Networks, ensuring data confidentiality and efficient key management with minimal resource consumption. Wireless Sensor Networks (WSNs) are made up of small sensor nodes that collect data from their surroundings and send it to a central base station. As these networks grow, they become more exposed to security threats. So, it's important to use strong and efficient security methods. To keep communication secure and smooth in WSNs, cryptographic techniques are used. These techniques help protect the data and manage the keys used for encryption. However, choosing the right cryptography method is challenging because sensor nodes have limited power, processing speed, and memory. In large networks, symmetric cryptography (where the same key is used for both encryption and decryption) may not work well. That’s why asymmetric cryptography (using different keys) is often preferred. In this study, we suggest a new method based on electronic logic gates for symmetric encryption. This technique works well for small to medium-sized WSNs, offering secure communication without putting too much load on the sensor nodes.