Light weight Cryptographic solutions for Fog Based Blockchain

Cryptography is the art of converting readable data into indecipherable format using keys and vice versa. Strength of the algorithm is mainly measured by the complexity and CPU cycles required for cryptanalysis in the algorithm. But in an energy constrained environment like IoT, CPU intense complex algorithms will degrade the efficiency. Light-weight or cut down versions of symmetric and asymmetric cryptographies are found best suited for constrained environments. So accordingly, we in this paper have surveyed a lot of Hardware and software based Light-weight cryptographic algorithms in a quest to find the best suited cryptographic algorithm for signing and hashing blockchain in a constrained environment.