Cloud technology provides data storage services to users to store large amount of data and also provides services that perform data processing. While data comes from different servers on cloud and the processing of the data is again done on different server, users must be assured about the integrity of the query results. Various applications need to perform the join operation on the data fetched from different data storage servers and send the join result to the client. The integrity methods described provide a way for the user to verify whether query results obtained after retrieving data are correct that no valid data is missing. Integrity check ensures that the data is complete and authentic. Encryption provides data protection for the query results.
Keywords
Integrity, cloud, data storage, security, query result, join operation.
