摘要
为提高加密数据库的应用性能,可以运用同态加密技术使得不用解密而直接操作密文数据。而多级安全机制能够为数据库管理系统提供更高层级的信息安全保护。本文提出了一种新的基于数论的数据库加密方案,该方案具有合理可行的密钥配置,加解密运算过程简单,并且具备多级安全机制,能够支持对密文的关系操作和动态扩展。
To acquire higher performance, a technology about privacy homomorphism which can be used.By using this technology, it is possible to manipulate encrypted information without decrypting them.DBMS with multilevel secure mechanism would have higher information protection level.A new encryption scheme on database provided in this paper has following features ： feasible key configuration, simple encryption （ decryption ） process, multilevel secure mechanism, supporting relation operation on encrypted information and dynamic expanding.
出处
《网络安全技术与应用》
2014年第10期124-125,127,共3页
Network Security Technology & Application
关键词
数据库加密
同态加密
多级安全机制
DBMS encryption
homomorphic encryption
multilevel secure mechanism
