{"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\/cs\/blog\/news\/v-fedora-35-namechen-perehod-na-yescrypt-dlya-heshirovaniya-parolej","title":{"rendered":"Ve Fedo\u0159e 35 je napl\u00e1nov\u00e1n p\u0159echod na yescrypt pro hashov\u00e1n\u00ed hesel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pro Fedora 35 je pl\u00e1nov\u00e1n p\u0159echod na pou\u017eit\u00ed sch\u00e9matu hashov\u00e1n\u00ed hesel yescrypt. Zm\u011bna zat\u00edm nebyla projedn\u00e1na v\u00fdborem FESCo (Fedora Engineering Steering Committee), kter\u00fd je odpov\u011bdn\u00fd za technickou \u010d\u00e1st v\u00fdvoje distribuce Fedora. V p\u0159\u00edpad\u011b schv\u00e1len\u00ed zm\u011bny budou v Fedora 35 hesla pro nov\u00e9 u\u017eivatele v \/etc\/shadow v\u00fdchoz\u00edm zp\u016fsobem hashov\u00e1na pomoc\u00ed yescrypt. Podpora star\u00fdch hash\u016f vytvo\u0159en\u00fdch na z\u00e1klad\u011b d\u0159\u00edve pou\u017e\u00edvan\u00e9ho algoritmu sha512crypt z\u016fstane zachov\u00e1na a bude dostupn\u00e1 jako volba. Mezi distribucemi, kter\u00e9 ji\u017e p\u0159e\u0161ly na yescrypt, lze zm\u00ednit ALT Linux, Debian Testing a Kali Linux. <\/p>\n

Yescrypt roz\u0161i\u0159uje mo\u017enosti klasick\u00e9ho scrypt podporou pou\u017e\u00edv\u00e1n\u00ed sch\u00e9mat s vysokou spot\u0159ebou opera\u010dn\u00ed pam\u011bti a sni\u017euje \u00fa\u010dinnost \u00fatok\u016f vyu\u017e\u00edvaj\u00edc\u00edch GPU, FPGA a specializovan\u00e9 \u010dipy. Bezpe\u010dnost Yescrypt je zaji\u0161t\u011bna d\u00edky pou\u017eit\u00ed ji\u017e prov\u011b\u0159en\u00fdch kryptografick\u00fdch primitiv\u016f SHA-256, HMAC a PBKDF2. <\/p>\n

Mezi nedostatky pou\u017e\u00edvan\u00e9ho v Fedo\u0159e algoritmu sha512crypt se uv\u00e1d\u00ed efektivita pouze p\u0159i velikosti salt p\u0159esahuj\u00edc\u00ed 90 bit\u016f (doporu\u010duje se alespo\u0148 128 bit\u016f); zranitelnost v\u016f\u010di DoS \u00fatok\u016fm prost\u0159ednictv\u00edm vytv\u00e1\u0159en\u00ed parazitn\u00edho zat\u00ed\u017een\u00ed CPU p\u0159i hashov\u00e1n\u00ed dlouh\u00fdch hesel; zranitelnost \u00fatokem na ur\u010den\u00ed velikosti hesla na z\u00e1klad\u011b pasivn\u00ed anal\u00fdzy \u010dasu zpracov\u00e1n\u00ed hash; provoz bez pou\u017eit\u00ed kryptografick\u00e9 funkce pro generov\u00e1n\u00ed kl\u00ed\u010de (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\udd47Pro Fedora 35 je pl\u00e1nov\u00e1n p\u0159echod na yescrypt pro hashov\u00e1n\u00ed hesel | ProHoster","description":"Pro Fedora 35 je pl\u00e1nov\u00e1n p\u0159echod na pou\u017eit\u00ed sch\u00e9matu hashov\u00e1n\u00ed hesel 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