Ƙungiyar binciken sa kai ta Jamus-Amurka kuma idan aka kwatanta tsaro na lambobi shida da lambobi huɗu na PIN don kulle wayoyi. Idan wayarka ta ɓace ko aka sace, yana da kyau a kalla a tabbata cewa za a kare bayanan daga hacking. Shin haka ne?
Philipp Markert daga Cibiyar Horst Goertz don Tsaron IT a Jami'ar Ruhr Bochum da Maximilian Golla daga Cibiyar Tsaro da Kerewa ta Max Planck sun gano cewa a zahiri ilimin halin dan Adam ya mamaye ilimin lissafi. Daga mahangar lissafi, amincin lambobin PIN mai lamba shida ya fi na lamba huɗu girma sosai. Amma masu amfani sun fi son wasu haɗe-haɗe na lambobi, don haka ana amfani da wasu lambobin PIN sau da yawa kuma wannan kusan yana kawar da bambanci tsakanin lambobi shida- da huɗu.
A cikin binciken, mahalarta sun yi amfani da na'urorin Apple ko Android kuma sun saita lambobin PIN huɗu ko shida. A kan na'urorin Apple da suka fara da iOS 9, jerin baƙar fata na haɗe-haɗe na dijital don lambobin PIN sun bayyana, zaɓin wanda aka haramta ta atomatik. Masu binciken suna da jerin baƙaƙen duka biyu a hannu (don lambobin lambobi 6- da 4) kuma sun gudanar da binciken haɗe-haɗe akan kwamfutar. Baƙaƙen lambobin PIN masu lamba 4 da aka karɓa daga Apple sun ƙunshi lambobi 274, da kuma masu lamba 6 - 2910.
Don na'urorin Apple, ana ba mai amfani ƙoƙari 10 don shigar da PIN. A cewar masu bincike, a cikin wannan yanayin baƙar fata ba ta da ma'ana. Bayan yunƙurin 10, ya zama mai wahala a iya tantance adadin daidai, koda kuwa mai sauqi ne (kamar 123456). Don na'urorin Android, ana iya shigar da lambar PIN 11 a cikin sa'o'i 100, kuma a wannan yanayin, baƙar fata ta riga ta zama hanyar da ta fi dacewa don kiyaye mai amfani daga shigar da sauƙi mai sauƙi da kuma hana wayoyin hannu daga yin kutse ta hanyar lambobi masu ƙarfi.
A cikin gwajin, mahalarta 1220 sun zaɓi lambobin PIN da kansu, kuma masu gwaji sun yi ƙoƙarin tantance su a cikin ƙoƙarin 10, 30 ko 100. An gudanar da zaɓin haɗuwa ta hanyoyi biyu. Idan an kunna baƙaƙen lissafin, an kai hari kan wayoyin hannu ba tare da amfani da lambobi daga lissafin ba. Ba tare da an kunna lissafin baƙaƙe ba, zaɓin lamba ya fara tare da bincika lambobi daga jerin baƙaƙe (kamar yadda aka fi yawan amfani da su). Yayin gwajin, ya bayyana cewa lambar PIN mai lamba 4 da aka zaɓa cikin hikima, yayin da take iyakance adadin yunƙurin shigarwa, yana da aminci sosai kuma har ma ya fi aminci fiye da lambar PIN mai lamba 6.
Lambobin PIN mafi yawan lambobi 4 sune 1234, 0000, 1111, 5555 da 2580 (wannan shine ginshiƙin tsaye akan faifan maɓalli). Wani bincike mai zurfi ya nuna cewa kyakkyawan lissafin baƙar fata na PIN mai lamba huɗu yakamata ya ƙunshi kusan shigarwar 1000 kuma ya ɗan bambanta da wanda aka samo don na'urorin Apple.
A ƙarshe, masu binciken sun gano cewa lambobin PIN mai lamba 4 da 6 ba su da tsaro fiye da kalmomin shiga, amma sun fi tsaro fiye da makullai na tushen wayar. Cikakkun za a gabatar da shi a San Francisco a watan Mayu 2020 a taron IEEE kan Tsaro da Sirri.
source: 3dnews.ru