Protecting medical data for analyses

Brumen, Boštjan; Welzer, Tatjana; Druzovec, Marjan; Golob, Izidor; Jaakkola, Hannu

doi:10.1109/cbms.2002.1011362

Cited by 5 publications

(10 citation statements)

References 5 publications

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“…In an attempt to explain their method, Brumen et al (2002) present two tables, T 1 and T 2 as illustrated in Figure 5.3. The table T 1 = Patients contains data describing patients.…”

Section: Statistical Datamentioning

confidence: 99%

“…This step also involves the creation of a "new transformed" table for each "old" (Brumen et al, 2002).…”

Section: Stepmentioning

confidence: 99%

“…When representing data in a two-dimensional table, it is common practice to include, in addition to regular cells, marginal cells (Hsu and Kao, 1997 The information that is obtained regarding the suppressed cell is leaked information. Brumen et al (2002) propose a data protection approach which is specifically designed to allow an analysis of statistical medical data, whilst protecting the confidentiality of the data. The approach encrypts tables and their contents.…”

Section: Cell Suppressionmentioning

confidence: 99%

“…The technique is described in the following four steps. (Brumen et al, 2002). A table stating the mapping between table names is created ( Figure 5.4(a)).…”

Section: Statistical Datamentioning

confidence: 99%

“…Brumen et al (2002) believe that the amount of data that is stored by organisations doubles approximately every 15 months. A large proportion of personal data is regarded as being sensitive and confidential and the use and storage of such a data type has a certain degree of risk associated with it.…”

Section: Introductionmentioning

confidence: 99%

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Protecting Personal Data

Cannon¹,

Courtright²,

Harris³

2015

Research World

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“…In an attempt to explain their method, Brumen et al (2002) present two tables, T 1 and T 2 as illustrated in Figure 5.3. The table T 1 = Patients contains data describing patients.…”

Section: Statistical Datamentioning

confidence: 99%

“…This step also involves the creation of a "new transformed" table for each "old" (Brumen et al, 2002).…”

Section: Stepmentioning

confidence: 99%

Section: Cell Suppressionmentioning

confidence: 99%

“…The technique is described in the following four steps. (Brumen et al, 2002). A table stating the mapping between table names is created ( Figure 5.4(a)).…”

Section: Statistical Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Protecting Personal Data

Cannon¹,

Courtright²,

Harris³

2015

Research World

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Protecting Medical Data for Decision-Making Analyses

et al. 2005

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In this paper, we present a procedure for data protection, which can be applied before any model building based analyses are performed. In medical environments, abundant data exist, but because of the lack of knowledge, they are rarely analyzed, although they hide valuable and often life-saving knowledge. To be able to analyze the data, the analyst needs to have a full access to the relevant sources, but this may be in the direct contradiction with the demand that data remain secure, and more importantly in medical area, private. This is especially the case if the data analyst is outsourced and not directly affiliated with the data owner. We address this issue and propose a solution where the model-building process is still possible while data are better protected. We consider the case where the distributions of original data values are preserved while the values themselves change, so that the resulting model is equivalent to the one built with original data.

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Brute force analysis of PsychoPass-generated Passwords

Brumen

Černezel

2014

2014 37th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)

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Background: Recently, Cipresso et al proposed a novel method for generating textual passwords. The PsychoPass password can be created, memorized and recalled by thinking of an action sequence instead of a string of characters.Objective: The objective of this paper is to analyze how and when the PsychoPass passwords are resilient to brute force attacks and how they compare to randomly generated ones.Methods: The PsychoPass method was studied analytically. The number of possible different passwords that can be created using PsychoPass method was calculated for different possible settings.Results: The PsychoPass generates passwords that are resilient to brute force attacks with password lengths comparable to those generated randomly. A PsychoPassgenerated password with 18 characters is as strong as a completely randomly generated password of length 11 characters with mixed upper and lowercase letters, numbers and symbols, but can easily be remembered. Conclusion: The PsychoPass method is an alternative to the existing passwords and is resilient to brute force attack.There is no known dictionary to enable the dictionary attack. The PsychoPass passwords look like random ones, eg. »aEy|dX%7Tu]6hJ«, but a user can easily remember it based on the action sequence instead of remembering its characters.

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Protecting medical data for analyses

Cited by 5 publications

References 5 publications

Protecting Personal Data

Protecting Personal Data

Protecting Medical Data for Decision-Making Analyses

Brute force analysis of PsychoPass-generated Passwords

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