{"id":36033,"date":"2019-10-31T22:09:16","date_gmt":"2019-10-31T19:09:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-gnupg-2-2-17-s-izmeneniyami-dlya-protivostoyaniya-atake-na-servery-klyuchej\/"},"modified":"2019-10-31T22:09:16","modified_gmt":"2019-10-31T19:09:16","slug":"vypusk-gnupg-2-2-17-s-izmeneniyami-dlya-protivostoyaniya-atake-na-servery-klyuchej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-gnupg-2-2-17-s-izmeneniyami-dlya-protivostoyaniya-atake-na-servery-klyuchej","title":{"rendered":"Uvoln\u011bn\u00ed GnuPG 2.2.17 s \u00fapravami pro odolnost v\u016f\u010di \u00fatok\u016fm na servery kl\u00ed\u010d\u016f.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/lists.gnupg.org\/pipermail\/gnupg-announce\/2019q3\/000439.html\">Byl zve\u0159ejn\u011bn<\/a><\/noindex>  verze n\u00e1stroje  <noindex><a rel=\"nofollow\" href=\"https:\/\/gnupg.org\/\">GnuPG 2.2.17<\/a><\/noindex> (GNU Privacy Guard), kompatibiln\u00ed se standardy OpenPGP (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc4880\">RFC-4880<\/a><\/noindex>) a S\/MIME, a poskytuj\u00edc\u00ed n\u00e1stroje pro \u0161ifrov\u00e1n\u00ed dat, pr\u00e1ci s elektronick\u00fdmi podpisy, spr\u00e1vu kl\u00ed\u010d\u016f a p\u0159\u00edstup k ve\u0159ejn\u00fdm \u00falo\u017ei\u0161t\u00edm kl\u00ed\u010d\u016f. P\u0159ipom\u00edn\u00e1me, \u017ee v\u011btev GnuPG 2.2 je pozicionov\u00e1na jako rozv\u00edjej\u00edc\u00ed se vyd\u00e1n\u00ed, do n\u011bj\u017e se st\u00e1le p\u0159id\u00e1vaj\u00ed nov\u00e9 mo\u017enosti, zat\u00edmco ve v\u011btvi 2.1 jsou povolena pouze opravn\u00e1 vylep\u0161en\u00ed.<\/p>\n<p>V nov\u00e9m vyd\u00e1n\u00ed jsou navr\u017eena opat\u0159en\u00ed na ochranu proti <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51006\">\u00fatoku na servery kl\u00ed\u010d\u016f<\/a><\/noindex>, kter\u00fd zp\u016fsobuje zamrznut\u00ed GnuPG a nemo\u017enost dal\u0161\u00edho fungov\u00e1n\u00ed a\u017e do odstran\u011bn\u00ed problematick\u00e9ho certifik\u00e1tu z m\u00edstn\u00edho \u00falo\u017ei\u0161t\u011b nebo p\u0159epracov\u00e1n\u00ed \u00falo\u017ei\u0161t\u011b certifik\u00e1t\u016f na z\u00e1klad\u011b ov\u011b\u0159en\u00fdch ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f. P\u0159idan\u00e1 ochrana spo\u010d\u00edv\u00e1 v \u00fapln\u00e9m ignorov\u00e1n\u00ed ve v\u00fdchoz\u00edm nastaven\u00ed v\u0161ech ciz\u00edch digit\u00e1ln\u00edch podpis\u016f certifik\u00e1t\u016f, z\u00edskan\u00fdch ze server\u016f pro ukl\u00e1d\u00e1n\u00ed kl\u00ed\u010d\u016f. P\u0159ipom\u00edn\u00e1me, \u017ee ka\u017ed\u00fd u\u017eivatel m\u016f\u017ee na server pro ukl\u00e1d\u00e1n\u00ed kl\u00ed\u010d\u016f p\u0159idat sv\u016fj digit\u00e1ln\u00ed podpis pro libovoln\u00e9 certifik\u00e1ty, co\u017e zlo\u010dinci vyu\u017e\u00edvaj\u00ed k vytvo\u0159en\u00ed pro certifik\u00e1t ob\u011bti obrovsk\u00e9ho mno\u017estv\u00ed takov\u00fdch podpis\u016f (v\u00edce ne\u017e sto tis\u00edc), jejich\u017e zpracov\u00e1n\u00ed naru\u0161uje norm\u00e1ln\u00ed fungov\u00e1n\u00ed GnuPG.<\/p>\n<p>Ignorov\u00e1n\u00ed t\u0159et\u00edch stran digit\u00e1ln\u00edch podpis\u016f je \u0159\u00edzeno mo\u017enost\u00ed &#171;self-sigs-only&#187;, kter\u00e1 umo\u017e\u0148uje nahr\u00e1vat pouze vlastn\u00ed podpisy jejich tv\u016frc\u016f. Pro obnoven\u00ed star\u00e9ho chov\u00e1n\u00ed m\u016f\u017eete do gpg.conf p\u0159idat nastaven\u00ed &#171;keyserver-options no-self-sigs-only,no-import-clean&#187;. Pokud b\u011bhem pr\u00e1ce dojde k importu po\u010dtu blok\u016f, kter\u00fd zp\u016fsob\u00ed p\u0159ete\u010den\u00ed lok\u00e1ln\u00edho \u00falo\u017ei\u0161t\u011b (pubring.kbx), GnuPG nam\u00edsto vyps\u00e1n\u00ed chyby automaticky p\u0159epne do re\u017eimu ignorov\u00e1n\u00ed digit\u00e1ln\u00edch podpis\u016f (&#171;self-sigs-only,import-clean&#187;). <\/p>\n<p>Pro aktualizaci kl\u00ed\u010d\u016f s pomoc\u00ed mechanismu <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.gnupg.org\/WKD\">Web Key Directory<\/a><\/noindex> (WKD) byla p\u0159id\u00e1na mo\u017enost &#171;&#8212;locate-external-key&#187;, kterou lze pou\u017e\u00edt k op\u011btovn\u00e9mu vytvo\u0159en\u00ed \u00falo\u017ei\u0161t\u011b certifik\u00e1t\u016f na z\u00e1klad\u011b ov\u011b\u0159en\u00fdch ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f. P\u0159i prov\u00e1d\u011bn\u00ed operace &#171;&#8212;auto-key-retrieve&#187; je mechanismus WKD nyn\u00ed up\u0159ednost\u0148ovan\u00fd p\u0159ed servery kl\u00ed\u010d\u016f. Podstata fungov\u00e1n\u00ed WKD spo\u010d\u00edv\u00e1 v um\u00edst\u011bn\u00ed ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f na web s vazbou na dom\u00e9nu uvedenou v e-mailov\u00e9 adrese. Nap\u0159\u00edklad pro adresu &#171;test@example.com&#187; lze kl\u00ed\u010d na\u010d\u00edst p\u0159es odkaz &#171;https:\/\/example.com\/.well-known\/openpgpkey\/hu\/183d7d5ab73cfceece9a5594e6039d5a&#187;.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51067\">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 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f GnuPG 2.2.17 (GNU Privacy Guard), \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0433\u043e \u0441\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430\u043c\u0438 OpenPGP (RFC-4880) \u0438 S\/MIME, \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445, \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u043c\u0438 \u043f\u043e\u0434\u043f\u0438\u0441\u044f\u043c\u0438, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0430\u043c\u0438 \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u043c \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430\u043c \u043a\u043b\u044e\u0447\u0435\u0439. \u041d\u0430\u043f\u043e\u043c\u043d\u0438\u043c, \u0447\u0442\u043e \u0432\u0435\u0442\u043a\u0430 GnuPG 2.2 \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0432\u044b\u043f\u0443\u0441\u043a, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u044e\u0442 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c\u0441\u044f \u043d\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438, \u0432 \u0432\u0435\u0442\u043a\u0435 2.1 \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f. [&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-36033","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 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f GnuPG.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-gnupg-2-2-17-s-izmeneniyami-dlya-protivostoyaniya-atake-na-servery-klyuchej\" \/>\n\t\t<meta 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