\u00cen cea mai recent\u0103 actualizare a platformei mobile securizate GrapheneOS 2024053100 a fost introdus\u0103 func\u021bia de blocare de urgen\u021b\u0103 a datelor de pe dispozitiv. Utilizatorul are posibilitatea de a seta o parole suplimentar\u0103 \u0219i un cod PIN, introducerea c\u0103rora va duce la \u0219tergerea tuturor cheilor din magazinele hardware, inclusiv cheile folosite pentru criptarea datelor de pe stocare, precum \u0219i la \u0219tergerea eSIM \u0219i repornirea dispozitivului. Astfel, \u00een cazul \u00een care utilizatorul este supus presiunii sau constr\u00e2ngerii de a debloca ecranul sau \u00een cazul unei amenin\u021b\u0103ri c\u0103 smartphone-ul va ajunge \u00een m\u00e2ini gre\u0219ite, proprietarul dispozitivului poate introduce codul PIN distrug\u0103tor \u0219i bloca datele f\u0103r\u0103 posibilitatea de a-\u0219i recupera accesul. <\/p>\n
Proiectul GrapheneOS dezvolt\u0103 o ramur\u0103 a codului surs\u0103 Android (AOSP, Android Open Source Project), extins\u0103 \u0219i modificat\u0103 pentru a spori securitatea \u0219i confiden\u021bialitatea. Majoritatea dispozitivelor Google Pixel actuale (Pixel 4\/5\/6\/7\/8, Pixel Fold, Pixel Tablet) sunt oficial sus\u021binute. Proiectul este distribuit sub licen\u021ba MIT. Acesta include multe tehnologii experimentale legate de spori izolarea aplica\u021biilor, gestionarea detaliat\u0103 a accesului, blocarea manifest\u0103rii vulnerabilit\u0103\u021bilor tipice \u0219i complicarea func\u021bion\u0103rii exploit-urilor. <\/p>\n
De exemplu, platforma folose\u0219te o implementare proprie a malloc \u0219i o variant\u0103 modificat\u0103 a libc cu protec\u021bie \u00eempotriva corup\u021biei de memorie, precum \u0219i o separare mai strict\u0103 a spa\u021biului de adresare al proceselor. \u00cen loc de JIT, \u00een Android Runtime se folose\u0219te doar compilarea anticipat\u0103 (AOT, ahead-of-time). \u00cen kernelul Linux sunt incluse multe mecanisme suplimentare de protec\u021bie, de exemplu, \u00een slub sunt ad\u0103ugate etichete de canar pentru blocarea dep\u0103\u0219irii buffer-ului. Pentru a spori izolarea aplica\u021biilor sunt utilizate SELinux \u0219i seccomp-bpf. <\/p>\n
Exist\u0103 posibilitatea de a acorda acces selectiv aplica\u021biilor la opera\u021biuni de re\u021bea, senzori, carnetul de adrese \u0219i dispozitive periferice (USB, camer\u0103). Implicit, este interzis\u0103 ob\u021binerea informa\u021biilor despre IMEI, adresa MAC, num\u0103rul de serie al cartelei SIM \u0219i alte identificatoare hardware. Citirea din clipboard este permis\u0103 doar aplica\u021biilor \u00een care \u00een prezent este activ focalizarea de intrare. Sunt incluse m\u0103suri suplimentare pentru izolarea proceselor legate de Wi-Fi \u0219i Bluetooth \u0219i prevenirea scurgerilor ca urmare a activit\u0103\u021bii wireless. Multe dintre mecanismele de \u00eent\u0103rire a securit\u0103\u021bii dezvoltate \u00een cadrul proiectului au fost transferate \u00een baza de cod principal a Android. <\/p>\n
\u00cen GrapheneOS, se aplic\u0103 verificarea criptografic\u0103 a componentelor \u00eenc\u0103rcate \u0219i extins\u0103 criptarea datelor<\/a> la nivelul sistemelor de fi\u0219iere ext4 \u0219i f2fs (datele sunt criptate folosind AES-256-XTS, iar numele fi\u0219ierelor \u2014 AES-256-CTS cu utilizarea HKDF-SHA512 pentru generarea unei chei separate pentru fiecare fi\u0219ier), \u0219i nu pe un dispozitiv bloc. Datele din part\u021biile de sistem \u0219i \u00een fiecare profil de utilizator sunt criptate cu chei diferite. Se utilizeaz\u0103 capabilit\u0103\u021bile hardware disponibile pentru accelerarea opera\u021biunilor de criptare. Pe ecranul de blocare apare un buton pentru \u00eencheierea sesiunii, dup\u0103 ap\u0103sarea c\u0103ruia cheile pentru decriptare sunt resetate \u0219i stocarea este trecut\u0103 \u00eentr-o stare neactivat\u0103. Exist\u0103 o setare pentru interzicerea instal\u0103rii de aplica\u021bii suplimentare \u00een profilurile selectate ale utilizatorilor. Pentru a proteja \u00eempotriva \u00eencerc\u0103rilor de parol\u0103, este activat un sistem de \u00eent\u00e2rziere, care depinde de num\u0103rul de \u00eencerc\u0103ri e\u0219uate (de la 30 de secunde la 1 zi). <\/p>\n GrapheneOS nu include \u00een mod principial aplica\u021bii \u0219i servicii Google, precum \u0219i implement\u0103ri alternative ale serviciilor Google, cum ar fi microG. Totu\u0219i, exist\u0103 posibilitatea instal\u0103rii serviciilor Google Play \u00eentr-un mediu izolat, f\u0103r\u0103 privilegii speciale. De asemenea, proiectul dezvolt\u0103 c\u00e2teva aplica\u021bii proprii, axate pe protec\u021bia informa\u021biilor \u0219i confiden\u021bialitate. Printre acestea se num\u0103r\u0103 browserul Vanadium bazat pe Chromium, o variant\u0103 modificat\u0103 a motorului WebView, un vizualizator PDF securizat, un firewall, aplica\u021bia Auditor pentru verificarea dispozitivelor \u0219i detectarea intruziunilor, o aplica\u021bie pentru func\u021bionarea camerei, orientat\u0103 spre asigurarea confiden\u021bialit\u0103\u021bii, \u0219i sistemul de creare a copiilor de siguran\u021b\u0103 criptate Seedvault. \u0412 \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e\u043c \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0438 \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0439 \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b GrapheneOS 2024053100 \u043f\u043e\u044f\u0432\u0438\u043b\u0430\u0441\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u044f \u044d\u043a\u0441\u0442\u0440\u0435\u043d\u043d\u043e\u0439 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0435. \u041f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0434\u0430\u043d\u0438\u044f \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0430\u0440\u043e\u043b\u044f \u0438 PIN-\u043a\u043e\u0434\u0430, \u0432\u0432\u043e\u0434 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u0440\u0438\u0432\u0435\u0434\u0451\u0442 \u043a \u043e\u0447\u0438\u0441\u0442\u043a\u0435 \u0432\u0441\u0435\u0445 \u043a\u043b\u044e\u0447\u0435\u0439 \u0432 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0445 \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430\u0445, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u043a\u043b\u044e\u0447\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0435 \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043a \u043e\u0447\u0438\u0441\u0442\u043a\u0435 eSIM \u0438 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0435. \u0422\u0430\u043a\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c, \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043e\u043a\u0430\u0437\u0430\u043d\u0438\u044f \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043d\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-116317","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Pe platforma Android GrapheneOS a ap\u0103rut posibilitatea de a crea un cod PIN destructiv | ProHoster","description":"\u00cen ultima actualizare a platformei mobile securizate GrapheneOS 2024053100 a fost introdus\u0103 func\u021bia de blocare de urgen\u021b\u0103 a datelor pe 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Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"