{"id":183960,"date":"2026-10-22T17:40:31","date_gmt":"2026-10-22T15:40:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/problemnye-kornevye-sertifikaty-emudhra-byli-sgenerirovany-v-hsm-i-proshli-nezavisimyj-audit"},"modified":"2026-10-22T17:40:36","modified_gmt":"2026-10-22T15:40:36","slug":"problematic-emudhra-root-certificates-were-generated-in-an-hsm-and-independently-audited","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/problematic-emudhra-root-certificates-were-generated-in-an-hsm-and-independently-audited","title":{"rendered":"Problematick\u00e9 ko\u0159enov\u00e9 certifik\u00e1ty eMudhra byly generov\u00e1ny v HSM a pro\u0161ly nez\u00e1visl\u00fdm auditem","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost eMudhra zve\u0159ejnila prohl\u00e1\u0161en\u00ed t\u00fdkaj\u00edc\u00ed se incidentu, p\u0159i kter\u00e9m m\u011blo osm ko\u0159enov\u00fdch certifik\u00e1t\u016f certifika\u010dn\u00ed autority snadno uh\u00e1dnuteln\u00e9 soukrom\u00e9 kl\u00ed\u010de, kter\u00e9 m\u011bly pouze 1 byte entropie nam\u00edsto 48. eMudhra tvrd\u00ed, \u017ee certifik\u00e1ty byly generov\u00e1ny v dubnu 2025 na ve\u0159ejn\u00e9 ceremonii s pou\u017eit\u00edm hardwarov\u00fdch modul\u016f HSM (Hardware Security Module), kter\u00e9 splnily po\u017eadavky na certifikaci dle FIPS 140-2 Level 3. <\/p>\n

B\u011bhem procesu generov\u00e1n\u00ed kl\u00ed\u010d\u016f do\u0161lo k chyb\u011b, kter\u00e1 zp\u016fsobila, \u017ee na f\u00e1zi balen\u00ed\/rozbalov\u00e1n\u00ed v HSM (wrap\/unwrap, \u0161ifrov\u00e1n\u00ed a de\u0161ifrov\u00e1n\u00ed kl\u00ed\u010dem-wrapperem) byl vytvo\u0159en druh\u00fd soubor slab\u00fdch kl\u00ed\u010d\u016f s nulov\u00fdmi nejsignifikantn\u011bj\u0161\u00edmi byty, kter\u00fd byl pou\u017eit v certifik\u00e1tech, vedle hlavn\u00edho souboru kryptografick\u00fdch kl\u00ed\u010d\u016f. Chyba nebyla rozpozn\u00e1na, proto\u017ee soukrom\u00e9 kl\u00ed\u010de jsou vytv\u00e1\u0159eny a uchov\u00e1v\u00e1ny pouze v HSM a nedost\u00e1vaj\u00ed se ven v otev\u0159en\u00e9 podob\u011b. P\u0159\u00ed\u010dina vznikl\u00e9 chyby zat\u00edm nen\u00ed jasn\u00e1 a spole\u010dnost prov\u00e1d\u00ed s t\u00edm souvisej\u00edc\u00ed vy\u0161et\u0159ov\u00e1n\u00ed. Tvrd\u00ed se, \u017ee problematick\u00e9 ko\u0159enov\u00e9 certifik\u00e1ty, kter\u00e9 byly vytvo\u0159eny pomoc\u00ed slab\u00fdch kl\u00ed\u010d\u016f, pro\u0161ly nez\u00e1visl\u00fdm auditem a po dobu dvou let z\u016fstaly na seznamu d\u016fv\u011bryhodn\u00fdch ve v\u0161ech \u00falo\u017ei\u0161t\u00edch ko\u0159enov\u00fdch certifik\u00e1t\u016f.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f eMudhra \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0437\u0430\u044f\u0432\u043b\u0435\u043d\u0438\u0435, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u0435 \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u043e\u043c, \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0443 \u0432\u043e\u0441\u044c\u043c\u0438 \u043a\u043e\u0440\u043d\u0435\u0432\u044b\u0445 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u0443\u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u044f\u044e\u0449\u0435\u0433\u043e \u0446\u0435\u043d\u0442\u0440\u0430 \u043e\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u043b\u0435\u0433\u043a\u043e \u043f\u043e\u0434\u0431\u0438\u0440\u0430\u0435\u043c\u044b\u0435 \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0435 \u043a\u043b\u044e\u0447\u0438, \u0438\u043c\u0435\u044e\u0449\u0438\u0435 \u0432\u0441\u0435\u0433\u043e 1 \u0431\u0430\u0439\u0442 \u044d\u043d\u0442\u0440\u043e\u043f\u0438\u0438 \u0432\u043c\u0435\u0441\u0442\u043e 48. eMudhra \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0430\u0435\u0442, \u0447\u0442\u043e \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b \u0431\u044b\u043b\u0438 \u0441\u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u0432 \u0430\u043f\u0440\u0435\u043b\u0435 2025 \u0433\u043e\u0434\u0430 \u043d\u0430 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u043e\u0439 \u0446\u0435\u0440\u0435\u043c\u043e\u043d\u0438\u0438 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0445 \u043c\u043e\u0434\u0443\u043b\u0435\u0439 HSM (Hardware Security Module), \u0438\u043c\u0435\u044e\u0449\u0438\u0445 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u044f \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c FIPS 140-2 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183960","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\n","aioseo_head_json":{"title":"\ud83e\udd47Problematic\u00e9 ko\u0159enov\u00e9 certifik\u00e1ty eMudhra byly generov\u00e1ny v HSM a pro\u0161ly nez\u00e1visl\u00fdm auditem | ProHoster","description":"Spole\u010dnost eMudhra zve\u0159ejnila prohl\u00e1\u0161en\u00ed t\u00fdkaj\u00edc\u00ed se incidentu, p\u0159i kter\u00e9m m\u011blo osm ko\u0159enov\u00fdch certifik\u00e1t\u016f certifika\u010dn\u00ed autority snadno uh\u00e1dnuteln\u00e9 soukrom\u00e9 kl\u00ed\u010de, kter\u00e9 m\u011bly pouze 1 byte entropie.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/problematic-emudhra-root-certificates-were-generated-in-an-hsm-and-independently-audited","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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\u041f\u0440\u043e\u0431\u043b\u0435\u043c\u043d\u044b\u0435 \u043a\u043e\u0440\u043d\u0435\u0432\u044b\u0435 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b eMudhra \u0431\u044b\u043b\u0438 \u0441\u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u0432 HSM \u0438 \u043f\u0440\u043e\u0448\u043b\u0438 \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u044b\u0439 \u0430\u0443\u0434\u0438\u0442 | ProHoster","og:description":"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f eMudhra \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0437\u0430\u044f\u0432\u043b\u0435\u043d\u0438\u0435, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u0435 \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u043e\u043c, \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0443 \u0432\u043e\u0441\u044c\u043c\u0438 \u043a\u043e\u0440\u043d\u0435\u0432\u044b\u0445 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u0443\u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u044f\u044e\u0449\u0435\u0433\u043e \u0446\u0435\u043d\u0442\u0440\u0430 \u043e\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u043b\u0435\u0433\u043a\u043e \u043f\u043e\u0434\u0431\u0438\u0440\u0430\u0435\u043c\u044b\u0435 \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0435 \u043a\u043b\u044e\u0447\u0438, \u0438\u043c\u0435\u044e\u0449\u0438\u0435 \u0432\u0441\u0435\u0433\u043e 1 \u0431\u0430\u0439\u0442 \u044d\u043d\u0442\u0440\u043e\u043f\u0438\u0438.","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/problematic-emudhra-root-certificates-were-generated-in-an-hsm-and-independently-audited","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-10-22T15:40:31+00:00","article:modified_time":"2026-10-22T15:40:36+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/183960","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=183960"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/183960\/revisions"}],"predecessor-version":[{"id":183961,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/183960\/revisions\/183961"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=183960"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=183960"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=183960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}