{"id":101817,"date":"2021-10-27T16:23:35","date_gmt":"2021-10-27T14:23:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-intel-razvivaet-protokol-httpa-dopolnyayushhij-https"},"modified":"2021-10-27T16:23:35","modified_gmt":"2021-10-27T14:23:37","slug":"kompaniya-intel-razvivaet-protokol-httpa-dopolnyayushhij-https","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/kompaniya-intel-razvivaet-protokol-httpa-dopolnyayushhij-https","title":{"rendered":"Tvrtka Intel razvija HTTPA protokol koji dopunjuje HTTPS.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>In\u017eenjeri iz tvrtke Intel predlo\u017eili su novi protokol HTTPA (HTTPS Attestable) koji pro\u0161iruje HTTPS dodatnim sigurnosnim jamstvima za izvr\u0161ene izra\u010dune. HTTPA omogu\u0107ava jamstvo integriteta obrade korisni\u010dkog zahtjeva na poslu\u017eitelju i osigurava da je web usluga pouzdana i da kod koji radi u TEE okru\u017eenju (Trusted Execution Environment) na poslu\u017eitelju nije promijenjen uslijed hakiranja ili diverzije od strane administratora.         <\/p>\n<p>HTTPS \u0161titi prijenose podataka tijekom prijenosa kroz mre\u017eu, ali ne mo\u017ee isklju\u010diti kr\u0161enja integriteta uslijed napada na poslu\u017eitelj. Izolirani enklavi, stvoreni pomo\u0107u tehnologija kao \u0161to su Intel SGX (Software Guard Extension), ARM TrustZone i AMD PSP (Platform Security Processor), omogu\u0107uju za\u0161titu va\u017enih izra\u010duna i smanjenje rizika od curenja ili promjene povjerljivih informacija na krajnjem \u010dvoru.     <\/p>\n<p>HTTPA, kako bi osigurao vjerodostojnost prenesenih informacija, omogu\u0107uje kori\u0161tenje sredstava za atestaciju koja pru\u017ea Intel SGX, potvr\u0111uju\u0107i autenti\u010dnost enklave u kojoj su izvr\u0161eni izra\u010duni. U su\u0161tini, HTTPA pro\u0161iruje HTTPS mogu\u0107no\u0161\u0107u daljinske atestacije enklave i omogu\u0107ava provjeru da se ona izvr\u0161ava u izvornom Intel SGX okru\u017eenju te da se web servisu mo\u017ee vjerovati. Protokol se prvotno razvija kao univerzalan i osim za Intel SGX mo\u017ee se implementirati i za druge TEE sustave.       <center><img decoding=\"async\" alt=\"Tvrtka Intel razvija HTTPA protokol koji dopunjuje HTTPS.\" src=\"\/wp-content\/uploads\/2021\/10\/c53a2701095cfb8166a4b25d4f97c772.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>Osim uobi\u010dajenog HTTPS postupka uspostavljanja za\u0161ti\u0107ene veze, HTTPA dodatno zahtijeva dogovor o povjerljivom sesijskom klju\u010du. Protokol uvodi novu HTTP metodu \u201eATTEST\u201c, koja omogu\u0107uje obradu tri vrste zahtjeva i odgovora:   <\/p>\n<ul>\n<li class=\"l\"> \u201epreflight\u201c za provjeru podr\u017eava li udaljena strana attestation enklava;\n<li class=\"l\"> \u201eattest\u201c za dogovor o parametrima attestation (odabir kriptografskog algoritma, razmjenu jedinstvenih za sesiju nasumi\u010dnih nizova, generiranje identifikatora sesije i prijenos javnog klju\u010da enklave klijentu);\n<li class=\"l\"> \u201etrusted session\u201c \u2014 formiranje sesijskog klju\u010da za povjerljivu razmjenu informacija. Sesijski klju\u010d se formira na temelju ranije dogovorene tajne sekvence (pre-session secret), koju je klijent stvorio koriste\u0107i primljeni od <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/server\/dts-los-angeles\/\"   title=\"poslu\u017eitelja\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3761\">poslu\u017eitelja<\/a> javnog klju\u010da TEE, i slu\u010dajnih nizova generiranih svake strane.  <\/ul>\n<p>    <center><img decoding=\"async\" alt=\"Tvrtka Intel razvija HTTPA protokol koji dopunjuje HTTPS.\" src=\"\/wp-content\/uploads\/2021\/10\/ea155f297e7858015a5589e5989afe38.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>HTTPA podrazumijeva da je klijent pouzdan, a server ne, tj. klijent mo\u017ee koristiti ovaj protokol za verifikaciju prora\u010duna u TEE okru\u017eenju. Me\u0111utim, HTTPA ne jam\u010di da su ostali prora\u010duni izvedeni izvan TEE-a, nisu kompromitirani, \u0161to zahtijeva primjenu posebnog pristupa razvoju web usluga. Tako je HTTPA uglavnom usmjeren na kori\u0161tenje sa specijaliziranim servisima koji imaju visoke zahtjeve za integritetom informacija, kao \u0161to su financijski i zdravstveni sustavi. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/server\/\"   title=\"web-poslu\u017eitelja\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"761\">web-poslu\u017eitelja<\/a> Za situacije kada prora\u010duni u TEE trebaju biti potvr\u0111eni i za server i za klijenta, predvi\u0111ena je varijanta protokola mHTTPA (Mutual HTTPA), koja provodi dvostranu verifikaciju. Ova varijanta je slo\u017eenija zbog potrebe za dvostrukim formiranjem sesijskih klju\u010deva za server i klijenta.    <\/p>\n<p>Objavljen je crabz 0.7, alat za vi\u0161edretveno komprimiranje i dekomprimiranje, napisan u Rust-u.<br \/>\n<br \/>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56050\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Intel \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b HTTPA (HTTPS Attestable), \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u044e\u0449\u0438\u0439 HTTPS \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c\u0438 \u0433\u0430\u0440\u0430\u043d\u0442\u0438\u044f\u043c\u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0434\u0451\u043d\u043d\u044b\u0445 \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0439. HTTPA \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0433\u0430\u0440\u0430\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u0438 \u0443\u0431\u0435\u0434\u0438\u0442\u044c\u0441\u044f \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e web-\u0441\u0435\u0440\u0432\u0438\u0441 \u0437\u0430\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u0435\u0442 \u0434\u043e\u0432\u0435\u0440\u0438\u044f \u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0439 \u0432 TEE-\u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u0438 (Trusted Execution Environment) \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u043a\u043e\u0434 \u043d\u0435 \u0431\u044b\u043b \u0438\u0437\u043c\u0435\u043d\u0451\u043d \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0432\u0437\u043b\u043e\u043c\u0430 \u0438\u043b\u0438 \u0434\u0438\u0432\u0435\u0440\u0441\u0438\u0438 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430. HTTPS \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u0442 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":101818,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Intel \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b HTTPA (HTTPS Attestable), \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u044e\u0449\u0438\u0439 HTTPS 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