Description

Data de-duplication is a technique to eliminate duplicate data in order to save storage space and enlarge upload bandwidth, which has been applied by cloud storage systems. Data de-duplication is a technique to reduce the amount of storage space for each entity to save its data. It is a method of eliminating a dataset’s redundant data. In a secure data de-duplication process, a de-duplication assessment tool identifies extra copies of data and deletes them, so a single instance can then be stored. The correctness of duplication check during data upload and require the same file to be derived into same verification tags, which suffers from brute-force attacks and restricts users from flexibly creating their own individual verification tags. It is an effective method that can check data integrity with the support of de-duplication where each user can generate its own individual verification tags from its private key against brute-force attacks. Any data hosted by cloud providers is protected with encryption, allowing users to access shared cloud services conveniently and securely.