Published Paper Details:

For disaster recovery, data backup is critical. Cloud-based solutions already provide a secure infrastructure. However, data privacy cannot be guaranteed when it is stored in a single cloud. Multi-cloud technologies are another option. Although employing several clouds to save smaller chunks of data can improve data privacy, it also requires the edge device to maintain many accounts and manage connection with multiple clouds. Because of these flaws, this technology is rarely used. Using state-of-the-art Multi-Cloud and encryption techniques, we present DropStore as an easy-to-use, highly secure, and reliable backup system. Using a locally hosted device, DropStore creates an abstraction layer for the end-user to hide all system intricacies."The Droplet," which is completely controlled by the user. As a result, the user does not have to rely on any untrustworthy third parties. Fog Computing was used to do this. The combination of Multi-Cloud and Fog Computing principles gives DropStore its distinctiveness. The system is open-source and accessible via the internet. The suggested solution improves data protection in terms of reliability, security, and privacy preservation while keeping a simple and straightforward interface with edge devices, according to performance results.