安全共享的密文数据库研究与设计

Research and design of database encryption system with high security and sharing

为解决数据库中敏感数据的安全性,提出了一种数据库加密系统设计方案。该方案借鉴数字证书技术,在确保数据机密性的同时又为用户提供了安全高效的数据共享机制。综合运用对称加密算法和公钥算法,既保证敏感信息的存储安全又为密钥提供安全高效的管理。从增强数据库安全性出发,对数据库加密的原理、算法和密钥管理等关键技术进行了分析研究。通过分析,该方案可有效地解决多个授权用户的共享访问并具有较高的安全性。

To deal with security of sensitive data in database, encryption scheme is designed. In virtue of digital certificate technique, the encryption scheme with the purpose of ensured data privacy as well as enhanced data sharing. This scheme used of symmetry encryption and public key encryption which provided secured storage for sensitive data and effective key management. The personal understanding of principle, arithmetic and key management on the security of database is introduced, in view of improving security level of Database. Finally, analyses showed that the scheme could effectively solve information of shared by many users and preferable security.