{"id":110431,"date":"2023-10-04T15:10:15","date_gmt":"2023-10-04T13:10:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-firefox-i-cloudflare-vklyuchena-podderzhka-ech-dlya-skrytiya-domena-v-https-trafike"},"modified":"2023-10-04T15:10:15","modified_gmt":"2023-10-04T13:10:16","slug":"v-firefox-i-cloudflare-vklyuchena-podderzhka-ech-dlya-skrytiya-domena-v-https-trafike","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-firefox-i-cloudflare-vklyuchena-podderzhka-ech-dlya-skrytiya-domena-v-https-trafike","title":{"rendered":"Firefoxis ja Cloudflares on aktiveeritud ECH toe toetamine, et varjata domeeni HTTPS-liikluses.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Mozilla on teatatud, et Firefoxi stabiilses versioonis on sisse l\u00fclitatud ECH (Encrypted Client Hello) toe toomine, mis on j\u00e4tk ESNI (Encrypted Server Name Indication) tehnoloogia arendusele ja mille eesm\u00e4rk on kr\u00fcpteerida teavet TLS-i seansside parameetrite kohta, nagu taotletud domeeninimi. ECH-i toimimiseks vajalik kood lisati esmakordselt Firefoxi versioonis 85, kuid see oli vaikimisi keelatud. Chrome alustas ECH toe j\u00e4rkj\u00e4rguliselt sissel\u00fclitamist alates versioonist 115.        <\/p>\n<p>Kuna lisaks \u00fchendusele <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-prohoster\/\"   title=\"serveriga\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3021\">serveriga<\/a> toimub teabe lekke taotletud domeenide kohta DNS-i kaudu, on t\u00e4ielik kaitse ECH-i k\u00f5rval vajalik kasutada ka DNS over HTTPS v\u00f5i DNS over TLS tehnoloogiat, et kr\u00fcpteerida DNS-i liiklust. Firefox ei kasuta ECH-i ilma, et DNS over HTTPS oleks seadetes lubatud. ECH-i toe kontrollimiseks brauseris on v\u00f5imalik kasutada seda lehte.    <\/p>\n<p>\u00dcheks ECH-i toe vaikimisi aktiveerimise faktoriks Firefoxis oli Cloudflare'i otsus aktiveerida ECH toe oma sisuhalduse v\u00f5rgus paar p\u00e4eva tagasi. Praktikas, kuna ECH-i rakendamisel on taotletud hostide andmed anal\u00fc\u00fcsi eest peidetud, on n\u00fc\u00fcd neile, kes tahavad filtreerida ja blokeerida soovimatuid veebisaite, mis kasutavad Cloudflare'i CDN-i, vaja blokkeerida kogu Cloudflare'i v\u00f5rk, blokeerida k\u00f5ik ECH-i taotlused v\u00f5i korraldada HTTPS-i p\u00fc\u00fcdmine vale juurt\u00f5endite abil kasutaja s\u00fcsteemis.       <\/p>\n<p>Esialgu kasutati mitme HTTPS-i veebisaidi korraldamiseks \u00fchel IP-aadressil TLS-i laiendust SNI, mille raames m\u00e4\u00e4rati taotletud hosti nimi ClientHello s\u00f5numis, mis saadeti enne kr\u00fcpteeritud sidekanali loomist. See omadus v\u00f5imaldas varajases \u00fchenduse t\u00f6\u00f6tlemise etapis jaotada p\u00e4ringud virtuaalsete hostide vahel, kuid samas v\u00f5imaldas interneti teenuse pakkujal valikuliselt filtreerida HTTPS-i liiklust ja anal\u00fc\u00fcsida, milliseid veebisaite kasutaja avab, mis ei v\u00f5imaldanud saavutada t\u00e4ielikku konfidentsiaalsust HTTPS-i rakendamisel.    <\/p>\n<p>Selle probleemi lahendamiseks ja taotletud veebisaidi kohta teabe lekke v\u00e4listamiseks, pakuti hiljem v\u00e4lja ESNI laiendus, mis rakendab hostinime andmete kr\u00fcpteerimist. ESNI rakendamise k\u00e4igus ilmnes, et ettepanek ei katnud k\u00f5iki v\u00f5imalikke hosti andmete lekke allikaid ja selle kasutamine polnud piisav HTTPS-i seansside t\u00e4ieliku konfidentsiaalsuse tagamiseks. Eelk\u00f5ige, seansi taastamisel, mille raames varem suleti, m\u00e4rgiti domeeninimi avatud kujul TLS-i laienduse PSK (Pre-Shared Key) parameetrites. Lisaks, ESNI rakendamise katsed n\u00e4itasid \u00fchilduvuse ja skaleeritavuse probleeme, mis takistasid ESNI laialdast kasutuselev\u00f5ttu.    <\/p>\n<p>\u0421 \u0443\u0447\u0451\u0442\u043e\u043c \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043a\u043e\u0432 ESNI \u0431\u044b\u043b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d \u043d\u043e\u0432\u044b\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0430\u043b\u044c\u043d\u044b\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c ECH, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0438\u0439 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u043b\u044e\u0431\u044b\u0445 TLS-\u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0439. \u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438 \u0433\u043b\u0430\u0432\u043d\u043e\u0435 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 ECH \u043e\u0442  ESNI \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u0432\u043c\u0435\u0441\u0442\u043e \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u043f\u043e\u043b\u0435\u0439 \u0448\u0438\u0444\u0440\u0443\u0435\u0442\u0441\u044f \u0441\u0440\u0430\u0437\u0443 \u0432\u0441\u0451 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435 ClientHello. ECH  \u043f\u043e\u0434\u0440\u0430\u0437\u0443\u043c\u0435\u0432\u0430\u0435\u0442 \u0440\u0430\u0437\u0434\u0435\u043b\u0435\u043d\u0438\u0435 ClientHello \u043d\u0430 \u0434\u0432\u0430 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f &#8212; \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435 ClientHelloInner (SNI Inner) \u0438 \u043d\u0435\u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0431\u0430\u0437\u043e\u0432\u043e\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435 ClientHelloOuter (SNI Outer). \u0412 \u043d\u0435\u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c SNI Outer \u043f\u0435\u0440\u0435\u0434\u0430\u044e\u0442\u0441\u044f \u043d\u0435 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0449\u0438\u0435 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0434\u0430\u043d\u043d\u044b\u0435, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a \u0432\u0435\u0440\u0441\u0438\u044f TLS \u0438 \u0441\u043f\u0438\u0441\u043e\u043a \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u0448\u0438\u0444\u0440\u043e\u0432, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043e\u0431\u0449\u0435\u0435 \u0438\u043c\u044f \u0434\u043e\u043c\u0435\u043d\u0430, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043d\u0435 \u043f\u0435\u0440\u0435\u0441\u0435\u043a\u0430\u0435\u0442\u0441\u044f \u0441 \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u0438\u043c\u0435\u043d\u0435\u043c \u0437\u0430\u043f\u0440\u043e\u0448\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u043c\u0435\u043d\u0430. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 Cloudflare \u0432 \u043d\u0435\u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c SNI Outer \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043e\u0431\u0449\u0438\u0439 \u0445\u043e\u0441\u0442 &#171;cloudflare-ech.com&#187;, \u0430 \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u0438\u043c\u044f \u0437\u0430\u043f\u0440\u043e\u0448\u0435\u043d\u043d\u043e\u0433\u043e \u0445\u043e\u0441\u0442\u0430 \u043f\u0435\u0440\u0435\u0434\u0430\u0451\u0442\u0441\u044f \u0432 \u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c SNI Inner \u0438 \u043d\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e \u0434\u043b\u044f \u0430\u043d\u0430\u043b\u0438\u0437\u0430.      <center><img decoding=\"async\" alt=\"Firefoxis ja Cloudflares on aktiveeritud ECH toe toetamine, et varjata domeeni HTTPS-liikluses. \" src=\"\/wp-content\/uploads\/2023\/10\/225939d0c0a33fb32a262a3e104079dc.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>ECH \u0442\u0430\u043a\u0436\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0438\u043d\u0443\u044e \u0441\u0445\u0435\u043c\u0443 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0430 \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f &#8212; \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u043a\u043b\u044e\u0447\u0435 \u043f\u0435\u0440\u0435\u0434\u0430\u0451\u0442\u0441\u044f  \u0432 DNS \u0437\u0430\u043f\u0438\u0441\u0438 HTTPSSVC, \u0430 \u043d\u0435 \u0432 \u0437\u0430\u043f\u0438\u0441\u0438 \u0441 \u0442\u0438\u043f\u043e\u043c TXT. \u0414\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0438 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0430 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u043a\u0432\u043e\u0437\u043d\u043e\u0435 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435  \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435  \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 HPKE (Hybrid Public Key Encryption). ECH \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u0443\u044e \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u0443\u044e \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0443 \u043a\u043b\u044e\u0447\u0430 \u0441 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u0447\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0442\u044c\u0441\u044f \u0432  \u0441\u043b\u0443\u0447\u0430\u0435 \u0440\u043e\u0442\u0430\u0446\u0438\u0438 \u043a\u043b\u044e\u0447\u0435\u0439 \u043d\u0430 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-newyork\/\"   title=\"serveril\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2675\">serveril<\/a> ja probleemide lahendamiseks, kui DNS-i vahem\u00e4lu kaudu saadud v\u00f5tmed on ajakohastatud.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59869\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Mozilla \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0438 \u0434\u043b\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 Firefox \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 ECH (Encrypted Client Hello), \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u044e\u0449\u0435\u0433\u043e \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 ESNI (Encrypted Server Name Indication) \u0438 \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u0445 TLS-\u0441\u0435\u0430\u043d\u0441\u043e\u0432, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a \u0437\u0430\u043f\u0440\u043e\u0448\u0435\u043d\u043d\u043e\u0435 \u0434\u043e\u043c\u0435\u043d\u043d\u043e\u0435 \u0438\u043c\u044f. \u0418\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u043a\u043e\u0434 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 ECH \u0431\u044b\u043b \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d \u0432 \u0432\u044b\u043f\u0443\u0441\u043a Firefox 85, \u043d\u043e \u0431\u044b\u043b \u043e\u0442\u043a\u043b\u044e\u0447\u0451\u043d \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e. \u0412 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