Study And Application Of Database Encryption Techniques Based On WEB Platform

As the development of computer and communication technology, more and more data are transmitted and stored in the network. The security of database systems will effect the security of the network information systems directly because of it's core position. As mentioned above, we introduced Database Encryption techniques which is important way of enhancing the security of database.Based on the research and analysis of database encryption, this dissertation has concluded the requirements of database encryption system, and introduced the role access control in database encryption model. This dissertation has studied the thoughts of ripe algorithms like IDEA and RSA, constructed the effective Mixed cryptography, designed a multilevel key management scheme. This dissertation researched and explored the problems of developing database encrypted/decrypted engine and solved data storage after encryption,by using the database encryption system as an outside tool of the DBMS. At the end, this dissertation implemented the encryption scheme by JCE extension.Aim to Practical Application, the dissertation combined the Database encryption techniques with Application System based on Web, implemented database encryption of Hospital out-patient system, further more, security testing on the system. Finally, analyses functions and characteristics of this system, Indicated that the system had achieved the anticipation aim, fulfilled the requirement of security.