REPLICATION OF DATA ENCRYPTED USING SYMMETRIC KEYS

摘要

In one aspect there is provided a backup server that may store data in one or more databases ¨each database being associated with a user and having a user ID associated with the database. Each database may have one or more partitions ¨ each partition being associated with an entity. Each data element is stored in the database associated with the user from which the data element is received, and is stored in a partition associated with entities that are authorized to access the data element. Furthermore, the backup server may determine which entities are authorized to access the data, using a policy database, and store the data element in a partition associated with each authorized entity. Third-party entities may request data from the backup server by sending a data request.