A design of lightweight ECC based cryptographic algorithm coupled with linear congruential method for resource constraint area in IoT

Internet of Things (IoT) is a thriving technology that interlinks gadgets to the internet by moulding a massive global network of unique objects which possess the capability to gather, process and exchange information to accomplish a specific task. The information is processed intelligently to produce new services; meanwhile, the threat of compromising the device is increasing in parallel. Security plays a vital and challenging factor in the cyber physical system. Implementation of a complex cryptographic algorithm is hard due to its resource constraint nature such as limited storage, computational ability, power constraint, etc. In our proposed prototype, we designed lightweight Elliptic curve cryptography (ECC) based algorithm coupled with a linear congruential method to strengthen the security. To validate the efficiency of our scheme, various experimentations are made and the results are compared in terms of communication and computation overhead. Our proposed method outperforms in the resource constraint environment which provides a highly secure key exchange mechanism and magnificent choice for ECC based key exchange using time-sharing point multiplication.