An Enhanced Approach for Security in Database Using Encryption Technology

Abstract

In traditional database security research, the database is usually assumed to be reliable. Under this assumption, the goal is to achieve security against external attacks, for instance from hackers and possibly also against users trying to obtain information beyond their privileges, for instance by some type of statistical inference. Therefore the database cannot necessarily be assumed to be fully trusted. Data in a database is very important. We must assure their security completely. It points out that it is difficult to ensure the security of the system by using a single encryption technology. This paper introduces the basic technologies of symmetrical encryption, asymmetrical encryption and then the hybrid encryption thoughts of combining the both are promoted. By using this method, the security of databases is enhanced.

Keywords: Database security, symmetric encryption, asymmetric encryption, hybrid encryption.