| 对用于数据库保密的随机干扰法的初步研究 |
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| 引用本文： | 游荣彦.对用于数据库保密的随机干扰法的初步研究[J].华南师范大学学报(自然科学版),1994,0(2):1-30. |
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| 作者姓名： | 游荣彦 |
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| 作者单位： | 华南师范大学计算机科学系 |
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| 摘 要： | 假定研究的数据库含有至少一个数值型字段，字段中的每一数值不允许用户确切掌握，但用户可以查询保密字段上若干个纪录值的和值．本文推荐了一种较能安全防范推断攻击的杏询方法，提出了实施随机干扰应遵从的３条原则，并且讨论了生成符合此３原则的随机干扰的设计方法．
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| 关 键 词： | 数据库 保密 推断攻击 随机干扰 广义逆 |
A STUDY ON RANDOM PERTURBATION METHOD USED FOR DATABASE SECURITY |
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| You Rongyan.A STUDY ON RANDOM PERTURBATION METHOD USED FOR DATABASE SECURITY[J].Journal of South China Normal University(Natural Science Edition),1994,0(2):1-30. |
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| Authors: | You Rongyan |
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| Abstract: | Suppose the studied database has at least one numerical field,in which no value is allowed to beexactly known by users,but users are permitted to query the sum of some recorded values in thesecure field.This paper suggests a querying way which can defend the secret data from inferenceattack with more safety.The paper predents three principles in implementing random perturbationand discusses a method of creating the random perturbation conforming to these principles. |
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| Keywords: | database security inference attack random perturbation generalized inverse unbiased |
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