{"id":106131,"date":"2022-12-16T15:36:53","date_gmt":"2022-12-16T13:36:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/nist-vyvodit-algoritm-heshirovaniya-sha-1-iz-svoih-speczifikaczij"},"modified":"2022-12-16T15:36:53","modified_gmt":"2022-12-16T13:36:53","slug":"nist-vyvodit-algoritm-heshirovaniya-sha-1-iz-svoih-speczifikaczij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/nist-vyvodit-algoritm-heshirovaniya-sha-1-iz-svoih-speczifikaczij","title":{"rendered":"A NIST elt\u00e1vol\u00edtja a SHA-1 has\u00edt\u00f3 algoritmust a specifik\u00e1ci\u00f3ib\u00f3l.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Az Egyes\u00fclt \u00c1llamok Orsz\u00e1gos Szabv\u00e1ny\u00fcgyi \u00e9s Technol\u00f3giai Int\u00e9zete (NIST) elavultnak nyilv\u00e1n\u00edtotta a hashel\u00e9si algoritmust, amely nem felel meg a biztons\u00e1gi k\u00f6vetelm\u00e9nyeknek, \u00e9s a haszn\u00e1lat\u00e1t nem javasolj\u00e1k. A SHA-1 alkalmaz\u00e1s\u00e1t 2030. december 31-ig teljesen megsz\u00fcntetik, \u00e9s \u00e1tt\u00e9rnek a biztons\u00e1gosabb SHA-2 \u00e9s SHA-3 algoritmusokra. <\/p>\n

2030. december 31-ig a NIST minden aktu\u00e1lis specifik\u00e1ci\u00f3j\u00e1ban \u00e9s protokollj\u00e1ban le\u00e1ll\u00edtja a SHA-1 alkalmaz\u00e1s\u00e1t. A SHA-1 specifik\u00e1ci\u00f3 \u00e9rv\u00e9nyess\u00e9g\u00e9nek megsz\u00fcntet\u00e9s\u00e9t egy \u00faj sz\u00f6vets\u00e9gi szabv\u00e1ny, a FIPS 180-5 fogja t\u00fckr\u00f6zni. Tov\u00e1bb\u00e1 v\u00e1ltoz\u00e1sok t\u00f6rt\u00e9nnek a kapcsol\u00f3d\u00f3 specifik\u00e1ci\u00f3kban, p\u00e9ld\u00e1ul az SP 800-131A-ban, ahonnan elt\u00e1vol\u00edtj\u00e1k a SHA-1 eml\u00edt\u00e9s\u00e9t. Azok a kriptogr\u00e1fiai modulok, amelyek t\u00e1mogatj\u00e1k a SHA-1-et, nem tudnak sikeresen \u00e1tesni a NIST k\u00f6vetelm\u00e9nyellen\u0151rz\u00e9s\u00e9n, \u00e9s a sz\u00f6vets\u00e9gi hat\u00f3s\u00e1gok sz\u00e1m\u00e1ra t\u00f6rt\u00e9n\u0151 sz\u00e1ll\u00edt\u00e1suk lehetetlenn\u00e9 v\u00e1lik (a tan\u00fas\u00edtv\u00e1ny \u00f6t \u00e9vre vonatkozik, ezt k\u00f6vet\u0151en \u00fajabb ellen\u0151rz\u00e9s sz\u00fcks\u00e9ges). <\/p>\n

A SHA-1 1995-ben lett kifejlesztve, \u00e9s mint inform\u00e1ci\u00f3feldolgoz\u00e1si sz\u00f6vets\u00e9gi szabv\u00e1ny (FIPS 180-1) ker\u00fclt elfogad\u00e1sra, lehet\u0151v\u00e9 t\u00e9ve e algoritmus haszn\u00e1lat\u00e1t az Egyes\u00fclt \u00c1llamok korm\u00e1nyzati int\u00e9zm\u00e9nyeiben. 2005-ben elm\u00e9leti lehet\u0151s\u00e9get bizony\u00edtottak a SHA-1 elleni t\u00e1mad\u00e1sra. 2017-ben pedig demonstr\u00e1lt\u00e1k az els\u0151 gyakorlati \u00fctk\u00f6z\u00e9si t\u00e1mad\u00e1st megadott prefixszel a SHA-1 ellen, amely lehet\u0151v\u00e9 tette, hogy k\u00e9t k\u00fcl\u00f6nb\u00f6z\u0151 adathalmazhoz olyan kieg\u00e9sz\u00edt\u00e9seket tal\u00e1ljanak, amelyek csatol\u00e1s\u00e1val \u00fctk\u00f6z\u00e9s j\u00f6het l\u00e9tre, \u00e9s az azonos eredm\u00e9nyhash keletkezzen (p\u00e9ld\u00e1ul, k\u00e9t megl\u00e9v\u0151 dokumentum eset\u00e9ben kisz\u00e1m\u00edthat\u00f3k k\u00e9t kieg\u00e9sz\u00edt\u00e9s, \u00e9s ha az egyik els\u0151 dokumentumhoz, a m\u00e1sik pedig a m\u00e1sodikhoz csatlakozik \u2014 a SHA-1 eredm\u00e9nyhashok ezen f\u00e1jlok eset\u00e9n azonosak lesznek). <\/p>\n

2019-ben a \u00fctk\u00f6z\u00e9sek meghat\u00e1roz\u00e1s\u00e1nak m\u00f3dszere jelent\u0151sen fejl\u0151d\u00f6tt, \u00e9s a t\u00e1mad\u00e1s v\u00e9grehajt\u00e1s\u00e1nak k\u00f6lts\u00e9gei n\u00e9h\u00e1ny t\u00edzezer doll\u00e1rra cs\u00f6kkentek. 2020-ban bemutatt\u00e1k a m\u0171k\u00f6d\u0151 t\u00e1mad\u00e1st a hamis PGP \u00e9s GnuPG digit\u00e1lis al\u00e1\u00edr\u00e1sok l\u00e9trehoz\u00e1s\u00e1ra. 2011 \u00f3ta a SHA-1 nem aj\u00e1nlott digit\u00e1lis al\u00e1\u00edr\u00e1sokhoz, 2017-ben pedig minden f\u0151bb webb\u00f6ng\u00e9sz\u0151 le\u00e1ll\u00edtotta a SHA-1 hash algoritmus haszn\u00e1lat\u00e1val hiteles\u00edtett tan\u00fas\u00edtv\u00e1nyok t\u00e1mogat\u00e1s\u00e1t. Ennek ellen\u00e9re a SHA-1 tov\u00e1bbra is haszn\u00e1latban van a vez\u00e9rl\u0151\u00f6sszegekhez, \u00e9s a NIST adatb\u00e1zis\u00e1ban t\u00f6bb mint 2200 tan\u00fas\u00edtott kriptogr\u00e1fiai modul \u00e9s k\u00f6nyvt\u00e1r tal\u00e1lhat\u00f3, amelyek t\u00e1mogatj\u00e1k a SHA-1-et.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0438\u043d\u0441\u0442\u0438\u0442\u0443\u0442 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 \u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 \u0421\u0428\u0410 (NIST) \u043f\u0440\u0438\u0437\u043d\u0430\u043b \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0445\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0438\u043c, \u043d\u0435 \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0438\u043c \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u043a \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u043d\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043a \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044e. \u041e\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f SHA-1 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0438\u0437\u0431\u0430\u0432\u0438\u0442\u044c\u0441\u044f \u0434\u043e 31 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 2030 \u0433\u043e\u0434\u0430 \u0438 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0435\u0440\u0435\u0439\u0442\u0438 \u043d\u0430 \u0431\u043e\u043b\u0435\u0435 \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u044b\u0435 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u044b SHA-2 \u0438 SHA-3. \u0414\u043e 31 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 2030 \u0433\u043e\u0434\u0430 \u0432\u043e \u0432\u0441\u0435\u0445 \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u0445 \u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u0445 NIST \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\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-106131","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\udd47A NIST elt\u00e1vol\u00edtja a SHA-1 hash algoritmust a specifik\u00e1ci\u00f3ib\u00f3l | ProHoster","description":"Az Egyes\u00fclt \u00c1llamok Orsz\u00e1gos Standardok \u00e9s Technol\u00f3giai Int\u00e9zete (NIST) elavult hash algoritmusnak nyilv\u00e1n\u00edtotta, amely nem felel meg a biztons\u00e1gi k\u00f6vetelm\u00e9nyeknek, \u00e9s nem aj\u00e1nlott haszn\u00e1latra.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/nist-vyvodit-algoritm-heshirovaniya-sha-1-iz-svoih-speczifikaczij","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","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\udd47NIST \u0432\u044b\u0432\u043e\u0434\u0438\u0442 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0445\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f SHA-1 \u0438\u0437 \u0441\u0432\u043e\u0438\u0445 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0439 | ProHoster","og:description":"\u041d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0438\u043d\u0441\u0442\u0438\u0442\u0443\u0442 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 \u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 \u0421\u0428\u0410 (NIST) \u043f\u0440\u0438\u0437\u043d\u0430\u043b \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0445\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0438\u043c, \u043d\u0435 \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0438\u043c \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u043a \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u043d\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043a 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