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Title:Security analysis and improvements to the psychopass method
Authors:Brumen, Boštjan (Author)
Heričko, Marjan (Author)
Rozman, Ivan (Author)
Hölbl, Marko (Author)
Files:.pdf Journal_of_Medical_Internet_Research_2013_Brumen_et_al._Security_Analysis_and_Improvements_to_the_PsychoPass_Method.pdf (542,01 KB)
MD5: 53EE0C3A1E855B54D93F9550A252CD11
URL http://www.jmir.org/2013/8/e161/
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Background: In a recent paper, Pietro Cipresso et al proposed the PsychoPass method, a simple way to create strong passwords that are easy to remember. However, the method has some security issues that need to be addressed. Objective: To perform a security analysis on the PsychoPass method and outline the limitations of and possible improvements to the method. Methods: We used the brute force analysis and dictionary attack analysis of the PsychoPass method to outline its weaknesses. Results: The first issue with the Psychopass method is that it requires the password reproduction on the same keyboard layout as was used to generate the password. The second issue is a security weakness: although the produced password is 24 characters long, the password is still weak. We elaborate on the weakness and propose a solution that produces strong passwords. The proposed version first requires the use of the SHIFT and ALT-GR keys in combination with other keys, and second, the keys need to be 1-2 distances apart. Conclusions: The proposed improved PsychoPass method yields passwords that can be broken only in hundreds of years based on current computing powers. The proposed PsychoPass method requires 10 keys, as opposed to 20 keys in the original method, for comparable password strength.
Keywords:passwords, cryptanalysis, data security
Year of publishing:2013
Number of pages:str. 1-7
Numbering:št. 8, Letn. 15
ISSN on article:1438-8871
COBISS_ID:17522198 New window
DOI:10.2196/jmir.2366 New window
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Record is a part of a journal

Title:Journal of Medical Internet Research
Shortened title:JMIR, J. Med. Internet Res.
Publisher:JMIR Publications
COBISS.SI-ID:2406629 New window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:02.08.2017

Secondary language

Keywords:varnost podatkov, gesla, kriptografija


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