Securely Transfer Information with RSA and Digital Signature by using the concept of Fog Computing and Blockchain

In the modern era of technology, cloud computing has been on the rise in the office management system. However, due to some concerning issues regarding provided security by the cloud, it has been losing its publicity. With the introduction of fog computing with its advantageous feature of decentralization, this system has replaced traditional cloud systems in various organizations. In this paper, we propose a smart office system which is based on fog computing. Blockchain is implemented to ensure overall system security and user authentication has been conducted by creating wallets in the blockchain system. The overall transaction process has been carried out with the popular bitcoin method. Information sharing has been implemented with the help of RSA algorithm and digital signature scheme.