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Title

QUANTITATIVE ANALYSIS OF THE DEPERSONALIZATION PROCEDURE. METHOD OF COMPOSITION OR SEMANTICS MODIFICATION

Authors

E.Yu. Mishchenko

South Ural State University, Chelyabinsk, Russian Federation. E-mail: ANSokolov@inbox.ru

Section

MATHEMATICAL METHODS IN INFORMATION SECURITY

Issue

19

Page

30-38

index UDC

004.056.5

index LBC

Abstract

Depersonalization is the way of personal data processing for the purpose of transforming data to protected status, in order to prevent disturber use it to damage the person. The result of depersonalization is depending on content of the personal data and the depersonalizationmethod also. Standard acts define some methods of depersonalization, but all of them are describing by qualitative criterions. This article makes the quantitative analysis of one of the depersonalization methods – the method of composition or semantics modification (MOD Method). Proposed variant of technical realization of MOD Method solves the problem of the identification
attribute set, which is necessary and sufficient for the modification, define the requirements for modification rules, and also describes the methods to realize them. On practical example the performance evaluation of MOD Method is made by using some criterions, including the technical criterions (identification impossibility on the one side and reconstruction possibility by means of modification rules on the other side), and commercial criterions (economic return). On the base of identification probability and depersonalization degree some recommendations of efficiency enhancement are proposed.

Keywords

personal data, depersonalization, method of composition or semantics modification.

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