{"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\/nl\/blog\/news\/reliz-openssh-9-9-s-podderzhkoj-algoritma-postkvantovogo-shifrovaniya-ml-kem","title":{"rendered":"Release OpenSSH 9.9 met ondersteuning voor het post-kwantumversleutelingsalgoritme ML-KEM","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>De release van OpenSSH 9.9 is gepubliceerd, een open implementatie van een client en server voor het werken met de protocollen SSH 2.0 en SFTP. Belangrijkste veranderingen:  <\/p>\n<ul>\n<li class=\"l\"> In ssh and sshd, support has been added for the hybrid key exchange algorithm \u2018mlkem768x25519-sha256\u2019, resistant to attacks by quantum computers, which is a combination of X25519 ECDH and the ML-KEM algorithm (CRYSTALS-Kyber), recently standardized by the National Institute of Standards and Technology (NIST). ML-KEM uses cryptographic methods based on solving lattice theory problems, with solution times that are unaffected by ordinary and quantum computers.\n<li class=\"l\"> The configuration file sshd_config has been updated to include the keyword \u2018RefuseConnection\u2019; when set, sshd will terminate connections after the first authentication attempt. A class \u2018refuseconnection\u2019 has been added to the PerSourcePenalties directive, which is applied when a connection is terminated after \u2018RefuseConnection\u2019 is triggered.\n<li class=\"l\"> In de ssh-client is de ondersteuning voor gegevenscompressie v\u00f3\u00f3r de authenticatie gestopt, wat de aanvalsvectoren op SSH-servers aanzienlijk vergroot en risico's met zich meebrengt voor het gebruik van indirecte methoden voor het analyseren van informatie die tijdens de authenticatie wordt verzonden. In <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/nl\/server\/dts-newyork\/\"   title=\"de server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2785\">de server<\/a> sshd was compressie v\u00f3\u00f3r de authenticatie al eerder uitgeschakeld.\n<li class=\"l\"> In ssh and sshd, similar to shell rules for handling strings enclosed in quotes, supporting nested framing and escapes with the symbol \u2018\\\u2019, have been utilized when parsing arguments in the \u2018Match\u2019 directive.\n<li class=\"l\"> In the ssh_config configuration file, support for environment variables and \u2018%\u2019- substitutions has been ensured in the \u2018Include\u2019 directive, similar to those in the \u2018Match Exec\u2019 directive.\n<li class=\"l\"> In sshd_config, the option \u2018invalid-user\u2019 has been added to the Match directive, which triggers when there is an attempt to log in with an invalid username.\n<li class=\"l\"> In ssh and sshd, a faster implementation of the \u2018Streamlined NTRUPrime\u2019 algorithm has been engaged. For the hybrid key exchange algorithm Streamlined NTRUPrime\/X25519, the option to use the name \u2018sntrup761x25519-sha512\u2019 has been added, in addition to the SSH-specific name \u2018sntrup761x25519-sha512@openssh.com.\u2019\n<li class=\"l\"> In ssh, sshd en ssh-agent is er een bescherming tegen het vastlopen van priv\u00e9sleutels in core-dumpbestanden toegevoegd, werkend in OpenBSD, Linux en FreeBSD.\n<li class=\"l\"> De verwerking van sleutels is overgezet naar het gebruik van de API EVP_PKEY, die wordt aangeboden door de bibliotheek libcrypto.\n<li class=\"l\"> In sshd is een willekeurige wijziging van de verbindingstimeout (LoginGraceTime) binnen 4 seconden toegevoegd om het bepalen van het verstrijken van de timeout te bemoeilijken.\n<li class=\"l\"> Problemen met de build met de Musl-bibliotheek zijn opgelost.  <\/ul>\n<p>Bron: <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 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e 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