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Research on View Publishing Method for Resisting Multi-Connection Attack

Author: QiRuiLi
Tutor: LiuGuoHua
School: Yanshan University
Course: Applied Computer Technology
Keywords: More sensitive attributes l- diversity Multiple connections Quest Conditional probability Quasi- identifier View Post Information Disclosure
CLC: TP309
Type: Master's thesis
Year: 2010
Downloads: 16
Quote: 0
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Abstract


With the rapid development of information technology , data exchange and exchange of the growing number of times . View post as an effective means of information exchange for data exchange and data sharing provides a convenient, but the view of the publishing process sensitive information leakage problems have become increasingly prominent, database security has become a new topic . This paper views the publishing process at home and abroad about the safety issues Research conducted a comprehensive analysis , focusing on the release of security judging view were studied . First introduced as a general method of classification of sensitive information and classified according to the number of several types of connections , a detailed explanation of multi conspiracy, reasoning and other information about several common attacks, and each attack has been illustrated in this based on the analysis of the safety of the existing view determination method , including the conditional probability method , k- anonymity method and query answering method for further study laid the theoretical and practical foundation. Secondly, based on the above findings and existing solutions , we propose a strategy based on the maximum Ye Zizi tree priority multi- sensitive attributes protection methods , the multi- sensitive attributes protection issues into more sensitive attribute l- diversity issues . This method effectively guarantee the safety of publishing views , and considering the loss of information , to ensure privacy is not compromised while improving data accuracy. Again, the study to be released are not included in standard view contains only quasi- identifier or part of the identifier attribute , the view released security issues. For publishing view contains identifying attributes the situation , according to the principle of maximum entropy estimate the probability of view exists , absolute security and relatively safe from the point of view put forward a view on conditional probability security decision algorithm ; For publishing view does not contain identity attributes , putting forward view based on quasi- identifiers security decision algorithm . When there is information disclosure , the above two cases are given information leakage measurement methods and information leakage cancellation algorithm. Finally, an example of the multi- view sensitive property protection algorithms and security determination method and experimentally validate the algorithm to prove the feasibility and effectiveness of the algorithm .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality
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