An Adaptive Secret Key-directed Cryptographic Scheme for Secure Transmission in Wireless Sensor Networks
This addresses security issues in resource-constrained wireless sensor networks, such as military applications, but appears incremental as it builds on existing encryption techniques.
The paper tackles the problem of secure transmission in wireless sensor networks by proposing an adaptive cryptographic scheme that encrypts sensitive data using bitwise operations and secret keys, with experimental results validating its effectiveness in terms of security.
Wireless Sensor Networks (WSNs) are memory and bandwidth limited networks whose main goals are to maximize the network lifetime and minimize the energy consumption and transmission cost. To achieve these goals, dif ferent techniques of compression and clustering have been used. However, security is an open and major issue in WSNs for which different approaches are used, both in centralized and distributed WSNs' environments. This paper presents an adaptive cryptographic scheme for secure transmission of various sensitive parameters, sensed by wireless sensors to the fusion center for further processing in WSNs such as military networks. The proposed method encrypts the sensitive captured data of sensor nodes using various encryption procedures (bitxor operation, bits shuffling, and secret key based encryption) and then sends it to the fusion center. At the fusion center, the received encrypted data is decrypted for taking further necessary actions. The experimental results with complexity analysis, validate the effectiveness and feasibility of the proposed method in terms of security in WSNs.