A Secret Sharing-Based Distributed Cloud System for Privacy Protection

Based on the rapid development of cloud, Internet of Things (IoT), and wireless networks, smart cities have been able to develop exponentially faster. The convergence of cloud computing and IoT net-works has accelerated the development of smart environments such as smart cities and smart homes. However, the expansion of smart cities generates a large amount of data which created numerous issues in the cloud, including big data processing, storage, security, and privacy. This paper proposes a multi-cloud system to which data distribution sharing is applied. The proposed system applies a data distribution sharing algorithm that distributes and stores data by applying secret sharing or interplanetary file systems depending on the type of data. Since data is divided and stored in distributed cloud storage, data can be safely protected in case of a cyber-attacks or single point of failure on one cloud storage. In addition, we apply one-time password protocol (OTIP) algorithms to secure data communication. OTIP is a one-time password-based IP address modification algorithm that continuously changes IP addresses for secure data communication. Finally, we prove the necessity of the proposed cloud system through qualitative analysis and simulation.