{"id":74249,"date":"2020-03-15T20:42:16","date_gmt":"2020-03-15T17:42:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/issledovanie-dlya-bezopasnosti-shestiznachnye-pin-kody-ne-luchshe-chem-chetyrehznachnye"},"modified":"2020-03-15T20:42:16","modified_gmt":"2020-03-15T17:42:16","slug":"issledovanie-dlya-bezopasnosti-shestiznachnye-pin-kody-ne-luchshe-chem-chetyrehznachnye","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/issledovanie-dlya-bezopasnosti-shestiznachnye-pin-kody-ne-luchshe-chem-chetyrehznachnye","title":{"rendered":"Studiu: pentru securitate, PIN-urile de \u0219ase cifre nu sunt mai bune dec\u00e2t cele de patru cifre","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

O echip\u0103 de cercet\u0103tori germano-americani, cu ajutorul voluntarilor a verificat<\/a><\/noindex> \u0219i a comparat securitatea codurilor PIN de \u0219ase \u0219i patru cifre pentru blocarea smartphone-urilor. \u00cen caz de pierdere sau furt al smartphone-ului, este mai bine s\u0103 fi\u021bi sigur c\u0103 informa\u021biile sunt protejate \u00eempotriva accesului neautorizat. Este adev\u0103rat asta?<\/p>\n

\"Studiu:<\/p>\n

Philipp Markert de la Institutul de Securitate IT Horst G\u00f6rtz al Universit\u0103\u021bii Ruhr din Bochum \u0219i Maximilian Golla de la Institutul pentru Securitate \u0219i Confiden\u021bialitate Max Planck au descoperit c\u0103, \u00een practic\u0103, psihologia primeaz\u0103 asupra matematicii. Din punct de vedere matematic, fiabilitatea codurilor PIN de \u0219ase cifre este semnificativ mai mare dec\u00e2t cea a codurilor de patru cifre. Cu toate acestea, utilizatorii prefer\u0103 combina\u021bii specifice de cifre, astfel \u00eenc\u00e2t unele coduri PIN sunt folosite mai frecvent, ceea ce aproape \u0219terge diferen\u021ba de complexitate \u00eentre codurile de \u0219ase \u0219i patru cifre.<\/p>\n

\u00cen studiu, participan\u021bii la experimente au folosit dispozitive Apple sau Android \u0219i au setat coduri PIN de patru sau \u0219ase cifre. Pe dispozitivele Apple, din versiunea iOS 9, a ap\u0103rut o list\u0103 neagr\u0103 cu combina\u021bii de cifre interzise pentru coduri PIN, ale c\u0103ror selec\u021bii sunt interzise automat. Cercet\u0103torii au avut la dispozi\u021bie ambele liste negre (pentru coduri de 6 \u0219i 4 cifre) \u0219i au rulat teste de combina\u021bii pe computer. Lista neagr\u0103 ob\u021binut\u0103 de la Apple pentru codurile PIN de 4 cifre con\u021binea 274 de numere, iar pentru cele de 6 cifre - 2910.<\/p>\n

Pentru dispozitivele Apple, utilizatorului i se ofer\u0103 10 \u00eencerc\u0103ri pentru a introduce codul PIN. Potrivit cercet\u0103torilor, \u00een acest caz, lista neagr\u0103 este practic inutil\u0103. Dup\u0103 10 \u00eencerc\u0103ri, a fost greu s\u0103 ghice\u0219ti num\u0103rul corect, chiar dac\u0103 acesta este foarte simplu (de tipul 123456). Pentru dispozitivele Android, \u00een 11 ore se pot efectua 100 de introduceri ale codului PIN, iar \u00een acest caz, lista neagr\u0103 este deja un mijloc mai sigur de a \u00eempiedica utilizatorul s\u0103 introduc\u0103 o combina\u021bie simpl\u0103 \u0219i de a evita hack-ul smartphone-ului prin testarea numerelor.<\/p>\n

<\/center><\/p>\n

\u00cen experiment, 1220 de participan\u021bi \u0219i-au ales singuri codurile PIN, iar experimentatorii au \u00eencercat s\u0103 le ghiceasc\u0103 \u00een 10, 30 sau 100 de \u00eencerc\u0103ri. Generarea combina\u021biilor a fost realizat\u0103 \u00een dou\u0103 moduri. Dac\u0103 era activat\u0103 lista neagr\u0103, smartphone-urile erau atacate f\u0103r\u0103 a folosi numerele din list\u0103. F\u0103r\u0103 activarea listei negre, generarea codului \u00eencepea cutestarea numerelor din lista neagr\u0103 (deoarece erau cele mai frecvent utilizate). \u00cen timpul experimentului s-a constatat c\u0103 un PIN de 4 cifre ales cu inteligen\u021b\u0103, cu restric\u021bii la num\u0103rul de \u00eencerc\u0103ri, este destul de sigur \u0219i chiar pu\u021bin mai fiabil dec\u00e2t unul de 6 cifre.<\/p>\n

Cele mai frecvente combina\u021bii de PIN de 4 cifre s-au dovedit a fi 1234, 0000, 1111, 5555 \u0219i 2580 (aceasta este o coloan\u0103 vertical\u0103 pe tastatura numeric\u0103). O analiz\u0103 mai aprofundat\u0103 a ar\u0103tat c\u0103 lista neagr\u0103 ideal\u0103 pentru PIN-uri de 4 cifre ar trebui s\u0103 con\u021bin\u0103 aproximativ 1000 de \u00eenregistr\u0103ri \u0219i s\u0103 fie u\u0219or diferit\u0103 de cea ob\u021binut\u0103 pentru dispozitivele Apple.<\/p>\n

\"Studiu:<\/p>\n

\u00cen cele din urm\u0103, cercet\u0103torii au descoperit c\u0103 codurile PIN de 4 \u0219i 6 cifre sunt mai pu\u021bin sigure dec\u00e2t parolele, dar mai fiabile dec\u00e2t blocarea grafic\u0103 a smartphone-urilor (pe baz\u0103 de modele). Complet raportul cercet\u0103rii<\/a><\/noindex> va fi prezentat la San Francisco \u00een mai 2020, la conferin\u021ba IEEE Symposium on Security and Privacy.<\/p>\n

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Sursa: 3dnews.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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