Design And Implementation Of Database Encryption System

This paper mainly studies the encryption method of the database secure policy, how to combine the cryptography with the relational database to protect sensible data. Prove the feasibility of the field encryption. Along with the method above and multi-data-key idea, design a combination of symmetrical and asymmetrical algorithms to enable authorized users share access to the confidential information, and protect the data key encrypted by user private key.We put forward a password-based encryption method to store users'private key on the system securely and easily. Combine the two points above to form an integrated Encryption Scheme, which can be verified to be secure, feasible and easy-to-use by comparing it with other encryption schemes. Then design a model to implement the feasibility and validity of the integrated encryption scheme and security dictionary.At last, discuss some problems of database security in our future research.