Network Database Security Issues and Defense

摘要

Database security is the mechanisms that secure the database against deliberate or accidental threats, unauthorized users, hackers and ip snoopers. In this paper we proposed two mixed techniques to secure the database ie one is authentication followed by cryptography of database. In existing system the algorithm is less secure, less complex and much superior to implement in any system. The encryption algorithm is built on genetic algorithm, it is used to encrypt the database and validate the user's login id and password, it must verify the user and allow the user to access the database. The decryption also has a login and password based on decryption algorithm and genetic algorithm. The database used is SQL Server 2003. This paper researches and analyzes the issues of security and defense