{"id":102843,"date":"2022-01-02T21:37:00","date_gmt":"2022-01-02T19:37:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d0%b4%d0%bb%d1%8f-%d1%8f%d0%b4%d1%80%d0%b0-linux-%d0%bf%d1%80%d0%b5%d0%b4%d0%bb%d0%be%d0%b6%d0%b5%d0%bd%d0%b0-%d1%80%d0%b5%d0%b0%d0%bb%d0%b8%d0%b7%d0%b0%d1%86%d0%b8%d1%8f-dev-random-%d0%b8%d0%b7"},"modified":"2022-01-02T21:37:00","modified_gmt":"2022-01-02T19:37:00","slug":"%d0%b4%d0%bb%d1%8f-%d1%8f%d0%b4%d1%80%d0%b0-linux-%d0%bf%d1%80%d0%b5%d0%b4%d0%bb%d0%be%d0%b6%d0%b5%d0%bd%d0%b0-%d1%80%d0%b5%d0%b0%d0%bb%d0%b8%d0%b7%d0%b0%d1%86%d0%b8%d1%8f-dev-random-%d0%b8%d0%b7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/%d0%b4%d0%bb%d1%8f-%d1%8f%d0%b4%d1%80%d0%b0-linux-%d0%bf%d1%80%d0%b5%d0%b4%d0%bb%d0%be%d0%b6%d0%b5%d0%bd%d0%b0-%d1%80%d0%b5%d0%b0%d0%bb%d0%b8%d0%b7%d0%b0%d1%86%d0%b8%d1%8f-dev-random-%d0%b8%d0%b7","title":{"rendered":"F\u00f6r Linux-k\u00e4rnan f\u00f6resl\u00e5s en implementation av \/dev\/random, utan koppling till SHA-1.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Jason Donenfeld, skaparen av VPN WireGuard, har f\u00f6reslagit en uppdaterad implementation av RDRAND, en pseudorandom generator som anv\u00e4nds f\u00f6r enheter \/dev\/random och \/dev\/urandom i Linux-k\u00e4rnan. I slutet av november inkluderades Jason bland maintainers av random-drivrutinen och har nu publicerat sina f\u00f6rsta resultat av sitt arbete med att omarbeta den. <\/p>\n

\u041d\u043e\u0432\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u0430 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043e\u043c \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0445\u0435\u0448-\u0444\u0443\u043d\u043a\u0446\u0438\u0438 BLAKE2s \u0432\u043c\u0435\u0441\u0442\u043e SHA1 \u0434\u043b\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0441\u043c\u0435\u0448\u0438\u0432\u0430\u043d\u0438\u044f \u044d\u043d\u0442\u0440\u043e\u043f\u0438\u0438. \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u043f\u0441\u0435\u0432\u0434\u043e\u0441\u043b\u0443\u0447\u0430\u0439\u043d\u044b\u0445 \u0447\u0438\u0441\u0435\u043b, \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0438\u0437\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044e \u043e\u0442 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043d\u043e\u0433\u043e \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 SHA1 \u0438 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044e \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438 \u0432\u0435\u043a\u0442\u043e\u0440\u0430 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 RNG. \u0422\u0430\u043a \u043a\u0430\u043a \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c BLAKE2s \u043e\u043f\u0435\u0440\u0435\u0436\u0430\u0435\u0442 SHA1 \u043f\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u0442\u043e \u0435\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u043b\u043e\u0436\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043e\u0442\u0440\u0430\u0437\u0438\u043b\u043e\u0441\u044c \u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u043f\u0441\u0435\u0432\u0434\u043e\u0441\u043b\u0443\u0447\u0430\u0439\u043d\u044b\u0445 \u0447\u0438\u0441\u0435\u043b (\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0441 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u043c Intel i7-11850H \u043f\u043e\u043a\u0430\u0437\u0430\u043b\u043e \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0435 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043d\u0430 131%). \u0415\u0449\u0451 \u043e\u0434\u043d\u0438\u043c \u043f\u043b\u044e\u0441\u043e\u043c \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0430 \u0441\u043c\u0435\u0448\u0438\u0432\u0430\u043d\u0438\u044f \u044d\u043d\u0442\u0440\u043e\u043f\u0438\u0438 \u043d\u0430 BLAKE2 \u0441\u0442\u0430\u043b\u0430 \u0443\u043d\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u043e\u0432 — BLAKE2 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0432 \u0448\u0438\u0444\u0440\u0435 ChaCha, \u0443\u0436\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u0438\u0437\u0432\u043b\u0435\u0447\u0435\u043d\u0438\u044f \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u044b\u0445 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0435\u0439. <\/p>\n

Dessutom har det gjorts f\u00f6rb\u00e4ttringar i den kryptos\u00e4kra pseudorandom-generatorn CRNG, som anv\u00e4nds vid anropet getrandom. F\u00f6rb\u00e4ttringarna inneb\u00e4r en begr\u00e4nsning av anropet till den l\u00e5ngsamma generatorn RDRAND vid extrahering av entropi, vilket \u00f6kar prestandan med 3,7 g\u00e5nger. Jason har visat att anropet till RDRAND endast \u00e4r meningsfullt n\u00e4r CRNG \u00e4nnu inte \u00e4r helt initialiserad, men n\u00e4r CRNG:s initialisering \u00e4r klar p\u00e5verkar dess v\u00e4rde inte kvaliteten p\u00e5 den genererade sekvensen och det g\u00e5r att klara sig utan att \u00e5tkomst till RDRAND i detta fall. <\/p>\n

\u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u044b \u0434\u043b\u044f \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 5.17 \u0438 \u0443\u0436\u0435 \u0440\u0435\u0446\u0435\u043d\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 Ted Ts’o (\u0432\u0442\u043e\u0440\u043e\u0439 \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 random), Greg Kroah-Hartman (\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0437\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 \u044f\u0434\u0440\u0430 Linux) \u0438 Jean-Philippe Aumasson (\u0430\u0432\u0442\u043e\u0440 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u043e\u0432 BLAKE2\/3).
\n
K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u0436\u0435\u0439\u0441\u043e\u043d \u0414\u043e\u043d\u0435\u043d\u0444\u0438\u043b\u0434 (Jason A. Donenfeld), \u0430\u0432\u0442\u043e\u0440 VPN WireGuard, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u043e\u0431\u043d\u043e\u0432\u043b\u0451\u043d\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u043f\u0441\u0435\u0432\u0434\u043e\u0441\u043b\u0443\u0447\u0430\u0439\u043d\u044b\u0445 \u0447\u0438\u0441\u0435\u043b RDRAND, \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u0437\u0430 \u0440\u0430\u0431\u043e\u0442\u0443 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \/dev\/random \u0438 \/dev\/urandom \u0432 \u044f\u0434\u0440\u0435 Linux. \u0412 \u043a\u043e\u043d\u0446\u0435 \u043d\u043e\u044f\u0431\u0440\u044f \u0414\u0436\u0435\u0439\u0441\u043e\u043d \u0431\u044b\u043b \u0432\u043a\u043b\u044e\u0447\u0451\u043d \u0432 \u0447\u0438\u0441\u043b\u043e \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 random \u0438 \u0442\u0435\u043f\u0435\u0440\u044c \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u043f\u0435\u0440\u0432\u044b\u0435 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0441\u0432\u043e\u0435\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u0435\u0433\u043e \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u043e\u0442\u043a\u0435. \u041d\u043e\u0432\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u0430 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043e\u043c \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0445\u0435\u0448-\u0444\u0443\u043d\u043a\u0446\u0438\u0438 BLAKE2s \u0432\u043c\u0435\u0441\u0442\u043e […]<\/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-102843","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\udd47 En implementering av \/dev\/random utan bindning till SHA-1 har f\u00f6reslagits f\u00f6r Linux-k\u00e4rnan | ProHoster","description":"Jason Donenfeld, skaparen av VPN WireGuard, har f\u00f6reslagit en uppdaterad implementation av RDRAND, en pseudorandom generator som anv\u00e4nds f\u00f6r enheter \/dev\/random och \/dev\/urandom i Linux-k\u00e4rnan.","canonical_url":"https:\/\/prohoster.info\/sv\/blog\/news\/%d0%b4%d0%bb%d1%8f-%d1%8f%d0%b4%d1%80%d0%b0-linux-%d0%bf%d1%80%d0%b5%d0%b4%d0%bb%d0%be%d0%b6%d0%b5%d0%bd%d0%b0-%d1%80%d0%b5%d0%b0%d0%bb%d0%b8%d0%b7%d0%b0%d1%86%d0%b8%d1%8f-dev-random-%d0%b8%d0%b7","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sv_SE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0414\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \/dev\/random, \u0438\u0437\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u0430\u044f \u043e\u0442 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0438 \u043a SHA-1 | ProHoster","og:description":"\u0414\u0436\u0435\u0439\u0441\u043e\u043d \u0414\u043e\u043d\u0435\u043d\u0444\u0438\u043b\u0434 (Jason A. 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