{"id":100468,"date":"2021-06-08T10:22:35","date_gmt":"2021-06-08T08:22:35","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-fedora-35-namechen-perehod-na-yescrypt-dlya-heshirovaniya-parolej"},"modified":"2021-06-08T10:22:35","modified_gmt":"2021-06-08T08:22:35","slug":"v-fedora-35-namechen-perehod-na-yescrypt-dlya-heshirovaniya-parolej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/v-fedora-35-namechen-perehod-na-yescrypt-dlya-heshirovaniya-parolej","title":{"rendered":"Vo Fedora 35 je pl\u00e1novan\u00fd prechod na yescrypt pre hashing hesiel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Prechod na pou\u017e\u00edvanie sch\u00e9my hashovania hesiel yescrypt je pl\u00e1novan\u00fd vo Fedore 35. Zmena zatia\u013e nebola pos\u00faden\u00e1 v\u00fdborom FESCo (Fedora Engineering Steering Committee), ktor\u00fd zodpoved\u00e1 za technick\u00fa \u010das\u0165 v\u00fdvoja distrib\u00facie Fedora. V pr\u00edpade schv\u00e1lenia zmeny sa od Fedory 35 bud\u00fa hesl\u00e1 pre nov\u00fdch pou\u017e\u00edvate\u013eov v \/etc\/shadow predvolene hashova\u0165 pomocou yescrypt. Podpora star\u00fdch hashov, vytvoren\u00fdch na z\u00e1klade predt\u00fdm pou\u017e\u00edvan\u00e9ho algoritmu sha512crypt, zostane zachovan\u00e1 a bude dostupn\u00e1 ako vo\u013eba. Medzi distrib\u00faciami, ktor\u00e9 u\u017e pre\u0161li na yescrypt, patr\u00ed ALT Linux, Debian Testing a Kali Linux. <\/p>\n

Yescrypt roz\u0161iruje mo\u017enosti klasick\u00e9ho scrypt podporou sch\u00e9m s vy\u0161\u0161ou spotrebou opera\u010dnej pam\u00e4te a zni\u017euje efekt\u00edvnos\u0165 \u00fatokov vyu\u017e\u00edvaj\u00facich GPU, FPGA a \u0161pecializovan\u00e9 \u010dipy. Bezpe\u010dnos\u0165 yescrypt je zabezpe\u010den\u00e1 pou\u017eit\u00edm u\u017e osved\u010den\u00fdch kryptografick\u00fdch primit\u00edvov SHA-256, HMAC a PBKDF2. <\/p>\n

Medzi nev\u00fdhody pou\u017eit\u00e9ho algoritmu sha512crypt vo Fedore patr\u00ed efekt\u00edvnos\u0165 iba pri ve\u013ekosti salt presahuj\u00facej 90 bitov (odpor\u00fa\u010da sa minim\u00e1lne 128 bitov); zranite\u013enos\u0165 vo\u010di DoS \u00fatokom vytv\u00e1ran\u00edm parazitnej z\u00e1\u0165a\u017ee na CPU pri hashovan\u00ed dlh\u00fdch hesiel; zranite\u013enos\u0165 vo\u010di \u00fatokom na z\u00e1klade pas\u00edvnej anal\u00fdzy doby spracovania hash; a pr\u00e1ca bez pou\u017eitia kryptografickej funkcie deriv\u00e1cie k\u013e\u00fa\u010da (KDF, key derivation function).
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043b\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0432 Fedora 35 \u043d\u0430\u043c\u0435\u0447\u0435\u043d \u043f\u0435\u0440\u0435\u0445\u043e\u0434 \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0445\u0435\u043c\u044b \u0445\u0435\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0430\u0440\u043e\u043b\u0435\u0439 yescrypt. \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u043f\u043e\u043a\u0430 \u043d\u0435 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u043e \u043a\u043e\u043c\u0438\u0442\u0435\u0442\u043e\u043c FESCo (Fedora Engineering Steering Committee), \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0438\u043c \u0437\u0430 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u0447\u0430\u0441\u0442\u044c \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Fedora. \u0412 \u0441\u043b\u0443\u0447\u0430\u0435 \u043e\u0434\u043e\u0431\u0440\u0435\u043d\u0438\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 Fedora 35 \u043f\u0430\u0440\u043e\u043b\u0438 \u0434\u043b\u044f \u043d\u043e\u0432\u044b\u0445 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0432 \/etc\/shadow \u0431\u0443\u0434\u0443\u0442 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0445\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u0442\u0441\u044f \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 yescrypt. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0441\u0442\u0430\u0440\u044b\u0445 \u0445\u044d\u0448\u0435\u0439, \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0445 […]<\/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-100468","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\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\udd47Vo Fedore 35 je pl\u00e1novan\u00fd prechod na yescrypt pre hashovanie hesiel | ProHoster","description":"Prechod na pou\u017e\u00edvanie sch\u00e9my hashovania hesiel yescrypt je pl\u00e1novan\u00fd vo Fedore 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