An Efficient Triple-Layered and Double Secured Cryptography Technique in Wireless Sensor Networks

When implemented in a complex environment, wireless network security is the main factor, and it is the sensor networks’ primary concern. Cryptology is a vital component in wireless sensor networks to accomplish this. Many existing cryptographic techniques had not shown good and better results till now. An efficient, strong, triple phased, double secured, and integrated cryptographic approach has been introduced in this study that utilizes both secret-key and public-key methods. Rijndael Encryption Approach (REA), Horst Feistel’s Encryption Approach (HFEA), and enhanced Rivest-Shamir-Adleman (e- RSA) are employed in the propounded technique in various stages of the algorithm since secret-key based system offers a significant level of protection and enable key management through publickey based techniques. REA was used in stage 1 of the algorithm; REA+HFEA was used in stage 2, and REA+HFEA+e-RSA was used in the last stage, and all three stages were performed in parallel. Parameters like execution time and decryption time were taken into account for measuring the performance levels of the propounded approach. The propounded algorithm is differentiated from existing techniques using a single evaluation parameter i.e computation time. It is found that propounded approach gave a good performance in terms of computation time with an Average Encryption Time (AET) and Average Decryption Time (ADT) of 1.12 and 1.26 on text sizes of 6, 25, 35, 61, and 184MegaBytes (MB) respectively. The proposed hybrid model is 1.36 times faster than ECC+RSA+MD-5,3.25 times faster than AES+ECC, 2.7 times faster than AES+RSA, and 3.24 times faster than AES+ECC+RSA+MD5.