An Novel Algorithm for Cloud Secure Storage Using Cloud Dispersion and Block Chain System

The rapid development of cloud computing has been greatly aided by the popularity and power of cloud storage. Nonetheless, there are still serioussecurity incidents that, as a consequence of malicious attack and management negligence, cause widespread sensitive data exposures at the cloud storage tier. To preserve the privacy of cloud data, this study created (CSSM). By combining data dispersion with dispersed storage, CSSM was able to provide encrypted, chucked, and scattered storage, preventing data intrusions at the storage layer. In addition, CSSM used a system of management levels and combined user passwords with secret sharing to avoid any unauthorized access to cryptographic materials. The experimental results show the proposed method can successfully store enormous amounts of cloud data without introducing a substantial latency cost, and is also suitable for securing data at the storage layer from leaking. Customers may upload/download a 5G file using CSSM in just 646 secondsand 269 seconds, which is acceptable.