Keyword-based Search over Encrypted Cloud Data: A Review

Keyword-based Search over Encrypted Cloud Data: A Review

Cloud computing provides an efficient and scalable computing infrastructure to process and store a large volume of data which motivates data owners to outsource their data to cloud servers. One of the most important issues in data outsourcing is how to protect sensitive data. To guarantee data privacy, data owner encrypts their sensitive data before uploading to the cloud. Thus, enabling keyword-based search over encrypted data is a very challenging task. Recently, searchable encryption schemes have been presented to execute keyword-based search over encrypted data. Searchable encryption allows the cloud server search over encrypted data securely without decryption them. We introduce relevant concepts and review state-of-the-art approaches.

Cloud computing provides an efficient and scalable computing infrastructure to process and store a large volume of data which motivates data owners to outsource their data to cloud servers. One of the most important issues in data outsourcing is how to protect sensitive data. To guarantee data privacy, data owner encrypts their sensitive data before uploading to the cloud. Thus, enabling keyword-based search over encrypted data is a very challenging task. Recently, searchable encryption schemes have been presented to execute keyword-based search over encrypted data. Searchable encryption allows the cloud server search over encrypted data securely without decryption them. We introduce relevant concepts and review state-of-the-art approaches.