J. Med. Internet Res. - Security analysis and improvements to the PsychoPass method.

Tópicos

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Resumo

CKGROUND: 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.

Resumo Limpo

ckground recent paper pietro cipresso et al propos psychopass method simpl way creat strong password easi rememb howev method secur issu need addressedobject perform secur analysi psychopass method outlin limit possibl improv methodmethod use brute forc analysi dictionari attack analysi psychopass method outlin weaknessesresult first issu psychopass method requir password reproduct keyboard layout use generat password second issu secur weak although produc password charact long password still weak elabor weak propos solut produc strong password propos version first requir use shift altgr key combin key second key need distanc apartconclus propos improv psychopass method yield password can broken hundr year base current comput power propos psychopass method requir key oppos key origin method compar password strength

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