Query Processing Performance on Encrypted Databases by Using the REA Algorithm
Encryption in database systems is an important topic for research, as secure and efficient algorithms are needed that provide the ability to query over encrypted database and allow optimized encryption and decryption of data. Clearly, there is a compromise between the degree of security provided by encryption and the efficient querying of the database, because the operations of encryption and decryption greatly degrade query performance. In this paper, the authors propose a new encryption algorithm, which they call Reverse Encryption Algorithm (REA). Their new Reverse Encryption Algorithm (REA) is simple and is fast enough for most applications. REA encryption algorithm provides maximum security and limits the added time cost for encryption and decryption to as to not degrade the performance of a database system.