| 子密钥生成算法的改进 |
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| 引用本文： | 杨立卓,叶哲江.子密钥生成算法的改进[J].贵州大学学报(自然科学版),2011,28(4):82-84,89. |
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| 作者姓名： | 杨立卓 叶哲江 |
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| 作者单位： | 昆明理工大学,信息工程与自动化学院,云南昆明650500 |
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| 摘 要： | 本文主要研究字段一级的数据库加密的密钥问题。在简要介绍生成子密钥的字段加密技术后,分析和对比已有的数种子密钥生成算法,提出按位对应插入的子密钥生成算法。这种算法在安全性上比文中所提到的A5算法有所改进,并同时兼顾数据加密所要求的效率和安全性。
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| 关 键 词： | 数据库 字段加密技术 子密钥生成算法 |
Modified sub-key generating algorithm |
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| YANG Li-zhuo,YE Zhe-jiang.Modified sub-key generating algorithm[J].Journal of Guizhou University(Natural Science),2011,28(4):82-84,89. |
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| Authors: | YANG Li-zhuo YE Zhe-jiang |
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| Institution: | YANG Li-zhuo,YE Zhe-jiang (College of Information Engineering and Automation,Kunming University of Science And Technology,Kunming 650500,China) |
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| Abstract: | In this paper we study the problem of database encryption keys at the field level.First we introduce the field-based data encryption with sub-key generating(FBDE) technology,then we analyze and compare several currently available sub-key generation algorithms.After that,we present an insertion according to each bit of the corresponding sub-key generation algorithm.This approach is safer than the A5 algorithm in the article,and taking into account the efficiency and security of the required data encryption. |
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| Keywords: | database field-based encryption technology Sub-key generating algorithm |
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