{"id":119889,"date":"2024-09-20T21:43:01","date_gmt":"2024-09-20T19:43:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openssh-9-9-s-podderzhkoj-algoritma-postkvantovogo-shifrovaniya-ml-kem"},"modified":"2024-09-20T21:43:01","modified_gmt":"2024-09-20T19:43:01","slug":"reliz-openssh-9-9-s-podderzhkoj-algoritma-postkvantovogo-shifrovaniya-ml-kem","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/reliz-openssh-9-9-s-podderzhkoj-algoritma-postkvantovogo-shifrovaniya-ml-kem","title":{"rendered":"OpenSSH 9.9 kiad\u00e1s posztkvantum titkos\u00edt\u00f3 ML-KEM algoritmus t\u00e1mogat\u00e1s\u00e1val.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Megjelent az OpenSSH 9.9, az SSH 2.0 \u00e9s SFTP protokollokhoz k\u00e9sz\u00fclt kliens \u00e9s szerver ny\u00edlt forr\u00e1sk\u00f3d\u00fa megval\u00f3s\u00edt\u00e1sa. F\u0151bb v\u00e1ltoz\u00e1sok:  <\/p>\n<ul>\n<li class=\"l\"> Az ssh \u00e9s sshd t\u00e1mogatja a hibrid kulcscsere algoritmust \u201emlkem768x25519-sha256\u201d, amely ellen\u00e1ll a kvantumsz\u00e1m\u00edt\u00f3g\u00e9pek \u00e1ltal v\u00e9gzett pr\u00f3b\u00e1lkoz\u00e1soknak, \u00e9s az X25519 ECDH \u00e9s a ML-KEM (CRYSTALS-Kyber) algoritmus kombin\u00e1ci\u00f3jak\u00e9nt lett nemr\u00e9giben a Szabv\u00e1nyok \u00e9s Technol\u00f3gi\u00e1k Nemzeti Int\u00e9zete (NIST) \u00e1ltal szabv\u00e1nyos\u00edtva. A ML-KEM a r\u00e1cskezel\u00e9s elm\u00e9let\u00e9n alapul\u00f3 kriptogr\u00e1fiai m\u00f3dszereket alkalmaz, amelyek megold\u00e1si ideje nem k\u00fcl\u00f6nb\u00f6zik a hagyom\u00e1nyos \u00e9s kvantumsz\u00e1m\u00edt\u00f3g\u00e9pek eset\u00e9ben.\n<li class=\"l\"> A sshd_config konfigur\u00e1ci\u00f3s f\u00e1jlba hozz\u00e1ad\u00f3dott a \u201eRefuseConnection\u201d kulcssz\u00f3, amelynek be\u00e1ll\u00edt\u00e1s\u00e1val az sshd a hiteles\u00edt\u00e9s els\u0151 k\u00eds\u00e9rlete ut\u00e1n lez\u00e1rja a kapcsolatokat. A PerSourcePenalties ir\u00e1nyelvhez hozz\u00e1adva lett a \u201erefuseconnection\u201d oszt\u00e1ly, amely akkor alkalmazand\u00f3, amikor a \u201eRefuseConnection\u201d aktiv\u00e1l\u00f3dik.\n<li class=\"l\"> Az ssh kliensben megsz\u0171nt a hiteles\u00edt\u00e9s el\u0151tti adat t\u00f6m\u00f6r\u00edt\u00e9s t\u00e1mogat\u00e1sa, ami jelent\u0151sen megn\u00f6veli az SSH-szerverek t\u00e1mad\u00e1si fel\u00fclet\u00e9t, \u00e9s kock\u00e1zatot jelent a hiteles\u00edt\u00e9s alatt elk\u00fcld\u00f6tt inform\u00e1ci\u00f3k k\u00f6zvetett elemz\u00e9s\u00e9re. A <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-newyork\/\"   title=\"szerveren\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2785\">szerveren<\/a> sshd-ben a hiteles\u00edt\u00e9s el\u0151tti t\u00f6m\u00f6r\u00edt\u00e9st kor\u00e1bban m\u00e1r letiltott\u00e1k.\n<li class=\"l\"> Az ssh \u00e9s sshd a \u201eMatch\u201d ir\u00e1nyelv argumentumainak elemz\u00e9se sor\u00e1n olyan, shell-hez hasonl\u00f3 karakterl\u00e1nc kezel\u00e9s szab\u00e1lyait alkalmazza, amelyek id\u00e9z\u0151jelekbe z\u00e1rt stringek eset\u00e9n t\u00e1mogatj\u00e1k a be\u00e1gyazott \u00f6lel\u00e9seket \u00e9s a \u201eackslash\u201d haszn\u00e1lat\u00e1val t\u00f6rt\u00e9n\u0151 escaping-et.\n<li class=\"l\"> A ssh_config konfigur\u00e1ci\u00f3s f\u00e1jlban az \u201eInclude\u201d ir\u00e1nyelv t\u00e1mogatja a k\u00f6rnyezeti v\u00e1ltoz\u00f3k \u00e9s a \u201e%\u201d-szubstit\u00faci\u00f3k haszn\u00e1lat\u00e1t, hasonl\u00f3an a \u201eMatch Exec\u201d ir\u00e1nyelvhez.\n<li class=\"l\"> A sshd_config f\u00e1jlban a Match ir\u00e1nyelvhez hozz\u00e1ad\u00f3dott az \u201einvalid-user\u201d opci\u00f3, amely aktiv\u00e1l\u00f3dik, amikor \u00e9rv\u00e9nytelen felhaszn\u00e1l\u00f3n\u00e9vvel pr\u00f3b\u00e1lnak bel\u00e9pni.\n<li class=\"l\"> Az ssh \u00e9s sshd egy gyorsabb megval\u00f3s\u00edt\u00e1st alkalmaz a \u201eStreamlined NTRUPrime\u201d algoritmusb\u00f3l. A hibrid kulcscsere algoritmushoz, a Streamlined NTRUPrime\/X25519 a \u201esntrup761x25519-sha512\u201d n\u00e9v haszn\u00e1lat\u00e1t is lehet\u0151v\u00e9 teszi, a SSH-specifikus \u201esntrup761x25519-sha512@openssh.com\u201d n\u00e9v mellett.\n<li class=\"l\"> Az ssh, sshd \u00e9s ssh-agent a z\u00e1rjegyek core f\u00e1jlokba val\u00f3 \u00edr\u00e1s\u00e1t megakad\u00e1lyoz\u00f3 v\u00e9delmet kapott, amely m\u0171k\u00f6dik OpenBSD, Linux \u00e9s FreeBSD alatt.\n<li class=\"l\"> A kulcsok kezel\u00e9se az EVP_PKEY API haszn\u00e1lat\u00e1ra v\u00e1lt \u00e1t, amelyet a libcrypto k\u00f6nyvt\u00e1r biztos\u00edt.\n<li class=\"l\"> Az sshd-be v\u00e9letlenszer\u0171en 4 m\u00e1sodpercre m\u00f3dos\u00edtott\u00e1k a kapcsolat id\u0151korl\u00e1tj\u00e1t (LoginGraceTime), hogy megnehez\u00edts\u00e9k az id\u0151korl\u00e1t lej\u00e1rat\u00e1nak \u00e9szlel\u00e9s\u00e9t.\n<li class=\"l\"> Megoldva a Musl k\u00f6nyvt\u00e1rral kapcsolatos ford\u00edt\u00e1si probl\u00e9m\u00e1k.  <\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61899\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.9, \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c SSH 2.0 \u0438 SFTP. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0412 ssh \u0438 sshd \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0433\u0438\u0431\u0440\u0438\u0434\u043d\u043e\u0433\u043e \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 \u043e\u0431\u043c\u0435\u043d\u0430 \u043a\u043b\u044e\u0447\u0430\u043c\u0438 &#171;mlkem768x25519-sha256&#187;, \u0441\u0442\u043e\u0439\u043a\u043e\u0433\u043e \u043a \u043f\u043e\u0434\u0431\u043e\u0440\u0443 \u043d\u0430 \u043a\u0432\u0430\u043d\u0442\u043e\u0432\u043e\u043c \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0435 \u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0441\u043e\u0431\u043e\u0439 \u043a\u043e\u043c\u0431\u0438\u043d\u0430\u0446\u0438\u044e \u0438\u0437 X25519 ECDH \u0438 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 ML-KEM (CRYSTALS-Kyber), \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u041d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u043c \u0438\u043d\u0441\u0442\u0438\u0442\u0443\u0442\u043e\u043c \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 \u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 \u0421\u0428\u0410 [&hellip;]<\/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-119889","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.9, \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u0438 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titkos\u00edt\u00e1si algoritmus, az ML-KEM t\u00e1mogat\u00e1s\u00e1val | ProHoster","description":"Megjelent az OpenSSH 9.9, az SSH 2.0 \u00e9s az SFTP protokollokhoz k\u00e9sz\u00fclt kliens \u00e9s szerver ny\u00edlt forr\u00e1sk\u00f3d\u00fa megval\u00f3s\u00edt\u00e1sa.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/reliz-openssh-9-9-s-podderzhkoj-algoritma-postkvantovogo-shifrovaniya-ml-kem","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\udd47\u0420\u0435\u043b\u0438\u0437 OpenSSH 9.9 \u0441 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