Secure Deduplication with User-Defined Access Control in Cloud Storage

Abstract

Abstract: Cloud storage is one of the most important services of cloud computing, offering significant benefits to users by allowing them to outsource their data for storage and sharing with authorized parties. Secure deduplication has been extensively researched in cloud storage, aiming to eliminate redundancy in encrypted data and reduce storage space. Our proposed solution focuses on uploading files to the cloud storage system. When a file is uploaded, it is checked to see if an identical file already exists. If a duplicate is found, the system displays an entry indicating that the file already exists. This secure and efficient data deduplication scheme ensures that users can store their data securely in the cloud, with access limited to authorized parties. By eliminating redundancy, more space is available for uploading different files. To ensure data security, we utilize the MD5 algorithm for hashing purposes and AES for encryption. Our system offers a practical solution for organizations seeking to securely store their data in the cloud, while also preserving user privacy and data ownership