| 摘要: |
| 本文提出了一种新的密钥管理方法——两级转换表，并以此方案为基础，实现了数据库加密管理工具DBEMT．文中详细介绍了DBEMT的总体设计和主要功能，根据不同方式的安全类划分，分别讨论了字段、记录和属性分类方式下密文数据库的设计．与以往的方案相比，该方案具有安全性好、易于实现、运行效率高的特点，具有较好的实用前景． |
| 关键词: 数据库加密，密钥管理，密钥转换，数据加密，转换表． |
| DOI： |
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| THE DESIGN AND IMPLEMENTATION OF DATABASE ENCRYPTION MANAGEMENT TOOL |
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Dai Yiqi,Su Zhongmin,Chen Wei,Shang Jie
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| Abstract: |
| In this paper a new scheme of key management is provided，two—level key transformation，which is considerably secure and easy to be implemented．Based on this scheme，a DBEMT(database encryption management tool)is achieved．The overall de-signs and functions of DBEMT are presented in detail．according to various ways for secu-rity class division，the designs of cipher databases using field classification,record classifi-cation and attribute classification methods are discussed respectively．Compared with conventional schemes，it has properties of good operability and high running speed．This scheme offers good prospect for utilization． |
| Key words: Database encryption,key management,key transformation,data encryption,transformation table． |
