{"id":184233,"date":"2026-11-12T11:41:15","date_gmt":"2026-11-12T09:41:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/udostoveryayushhij-czentr-emudhra-otozval-eshhyo-8-promezhutochnyh-kornevyh-sertifikatov"},"modified":"2026-11-12T11:41:21","modified_gmt":"2026-11-12T09:41:21","slug":"emudhra-certificate-authority-revokes-8-more-intermediate-root-certificates","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/emudhra-certificate-authority-revokes-8-more-intermediate-root-certificates","title":{"rendered":"Potrdilni center eMudhra je umaknil \u0161e 8 vmesnih korenskih potrdil","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Podjetje eMudhra je razkrilo dodatne podrobnosti o incidentu, v katerem je osem korenskih potrdil overitelja razkrilo enostavno pridobljive zasebne klju\u010de, ki so imeli le 1 bajt entropije namesto 48. Poleg prvotno ugotovljenih problemati\u010dnih vmesnih korenskih potrdil se poro\u010da o nadzoru \u0161e 8 potrdil, vendar ne zaradi te\u017eav z entropijo. Analiza je pokazala, da je vir te\u017eav z entropijo skripta v Pythonu, ki se je uporabljal za prenos zasebnih klju\u010dev med strojno zaklenjenimi shranjevanji klju\u010dev (HSM) razli\u010dnih proizvajalcev. Prenos klju\u010dev je bil posledica zamud pri dobavi naprednih modelov HSM, ki izpolnjujejo nove zahteve za overitelje. <\/p>\n

Zaradi napake je bil velikost zasebnih klju\u010dev ECDSA skraj\u0161ana na 1 bajt. Poleg tega je skript med prenosom klju\u010dev med HSM izvajal obdelavo zasebnih klju\u010dev v neza\u0161\u010ditenem pomnilniku ra\u010dunalnika, na katerem je bil zagnan, medtem ko naj bi se operacije z zasebnimi klju\u010di izvajale le znotraj HSM. Dnevniki HSM so potrdili, da so strojna shranjevanja delovala pravilno, te\u017eava pa je bila povzro\u010dena z uporabo doma\u010dega skripta. <\/p>\n

Poleg klju\u010dev ECDSA se je skript uporabljal tudi za prenos 8 klju\u010dev RSA-4096, pri katerih ni bilo te\u017eav z entropijo, toda obdelava klju\u010dev v obi\u010dajnem pomnilniku kr\u0161i varnostne zahteve, ki jih postavljajo overiteljem, zato so tudi RSA potrdila zdaj razveljavljena.
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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razkrilo enostavno pridobljive zasebne klju\u010de, ki so imeli le 1 bajt.","canonical_url":"https:\/\/prohoster.info\/sl\/blog\/news\/emudhra-certificate-authority-revokes-8-more-intermediate-root-certificates","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sl_SI","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\u0423\u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u044f\u044e\u0449\u0438\u0439 \u0446\u0435\u043d\u0442\u0440 eMudhra \u043e\u0442\u043e\u0437\u0432\u0430\u043b \u0435\u0449\u0451 8 \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u0445 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