{"id":52523,"date":"2019-11-10T00:00:00","date_gmt":"2019-11-09T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/opensorsnyj-chip-opentitan-zamenit-proprietarnye-korni-doveriya-intel-i-arm"},"modified":"2020-02-18T14:00:16","modified_gmt":"2020-02-18T11:00:16","slug":"opensorsnyj-chip-opentitan-zamenit-proprietarnye-korni-doveriya-intel-i-arm","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/opensorsnyj-chip-opentitan-zamenit-proprietarnye-korni-doveriya-intel-i-arm","title":{"rendered":"Avatud l\u00e4htekoodiga kiip OpenTitan asendab Intel ja ARM omandi \u00f5igusi","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Avatud l\u00e4htekoodiga kiip OpenTitan asendab Intel ja ARM omandi \u00f5igusi\" src=\"\/wp-content\/uploads\/2019\/11\/f772b9f7e7f57a5c6a700ac0ca6110b8.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nMitteamet <noindex><a rel=\"nofollow\" href=\"https:\/\/www.lowrisc.org\/\">lowRISC<\/a><\/noindex> Google'i ja teiste sponsorite osalusel 5. novembril 2019. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.lowrisc.org\/blog\/2019\/11\/announcing-opentitan-the-first-transparent-silicon-root-of-trust\/\">esitles<\/a><\/noindex> projekt <noindex><a rel=\"nofollow\" href=\"https:\/\/opentitan.org\">OpenTitan<\/a><\/noindex>, mis nimetatakse \"esimese avatud l\u00e4htekoodiga projektiks kvaliteetse usaldusv\u00f5rgustiku (RoT) avatud arhitektuuri loomiseks riistvaratasemel.\"<\/p>\n<p>OpenTitan RISC-V arhitektuuril on spetsiaalne kiip, mis paigaldatakse serveritesse andmekeskustes ja muudesse seadmetesse, kus on vajalik laadimise autentimine, p\u00fcsivara kaitsmine muudatuste eest ja juurkomplektide t\u00f5en\u00e4osuse v\u00e4listamine: need on emaplaadid, v\u00f5rgukaardid, ruuterid, IoT seadmed, mobiilgadgetid jne.<\/p>\n<p>Muidugi, sarnaseid mooduleid leidub t\u00e4nap\u00e4eva protsessorites. N\u00e4iteks on Intel Boot Guard riistvaramoodul, mis toimib usaldusv\u00f5rgustiku aluseks Intel'i protsessorites. See kontrollib usaldusv\u00e4\u00e4rsuse ahelat UEFI BIOSi autentsuse kinnitamiseks enne operatsioonis\u00fcsteemi laadimist. Kuid k\u00fcsimus on, kui palju me v\u00f5ime usaldada patendeeritud usaldusv\u00f5rgustikke, arvestades, et meil ei ole garantiid disaini vigade puudumise kohta ning seda ei saa kontrollida? Vaata artiklit <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dsec\/blog\/326556\/\">\u201e\u0160r\u00f6dingeri usaldusv\u00e4\u00e4rne laadimine. Intel Boot Guard\u201c<\/a><\/noindex> kirjeldab, kuidas \u201emitme tootja tootmisvea kloonimine aastate jooksul v\u00f5imaldab potentsiaalsel kurjategijal kasutada seda tehnoloogiat s\u00fcsteemis kustutamatute (isegi programmeerija poolt) peidetud juurkomplektide loomiseks.\u201c<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nSeadmete kompromiteerimise oht tarnija ahelas on \u00fcllatavalt reaalne: n\u00e4ib, et iga elektroonikahuviline <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/news\/t\/471398\/\">v\u00f5ib juurida serveerimise emaplaati,<\/a><\/noindex>kasutades varustust, mille hind ei \u00fcleta 200 dollarit. M\u00f5ned eksperdid kahtlevad, et \u201eorganisatsioonid, mille eelarve on sadu miljoneid dollareid, on sellega tegelenud juba aastaid\u201c. Kuigi t\u00f5endeid pole, on teoreetiliselt see v\u00f5imalik.<\/p>\n<blockquote><p>\u201eKui te ei saa usaldada riistvara laadijat, on m\u00e4ng l\u00e4bi, \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.technologyreview.com\/s\/614675\/googles-new-chip-protects-the-cloud-where-its-most-vulnerable\/\">\u00fctleb<\/a><\/noindex> Gavin Ferris, lowRISCi n\u00f5ukogu liige. \u2014 Pole t\u00e4htis, mida operatsioonis\u00fcsteem teeb \u2014 kui te olete operatsioonis\u00fcsteemi laadimise ajaks kompromiteeritud, siis on muu vaid tehnika. Teiega on juba l\u00f5petatud.\u201c<\/p><\/blockquote>\n<p>\nSelle probleemi peaks lahendama esmakordne avatud riistvaraplatvorm OpenTitan (<noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/lowRISC\/opentitan\">GitHubi repositoorium<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.opentitan.org\">dokumentatsioon<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.opentitan.org\/hw\/\">riistvara spetsifikatsioonid<\/a><\/noindex>). Kilpimise lahendusest loobumine muudab \u201ek\u00e4\u00e4nulise ja ebat\u00e4iusliku RoT t\u00f6\u00f6stuse\u201c, usub Google.<\/p>\n<p>Googlei ettev\u00f5te alustas Titan arendamist, avastades, et Intel Management Engine (ME) kiipidesse on integreeritud Minix operatsioonis\u00fcsteem. See keeruline ops\u00fcsteem laienes ettearvamatul ja kontrollimatul viisil r\u00fcnnakupinda. Google <noindex><a rel=\"nofollow\" href=\"https:\/\/www.tomshardware.com\/news\/google-removing-minix-management-engine-intel,35876.html\">\u00fcritas vabaneda Intel Management Engine'ist (ME)<\/a><\/noindex>, kuid eba\u00f5nnestunult.<\/p>\n<h1>Mis on usaldusjuure?<\/h1>\n<p>\nIga s\u00fcsteemi k\u00e4ivitamise etapp kontrollib j\u00e4rgmise etapi autentimist, luues seel\u00e4bi <i>usaldusketi<\/i>.<\/p>\n<p>Usaldusjuur (Root of Trust, RoT) on riistvara autentimise mehhanism, mis tagab, et esimesena t\u00e4idetava juhise allikas usaldusketis on muutumatu. RoT on v\u00f5tmeelement juurdep\u00e4\u00e4su kaitse rutiinide vastu. See on oluline k\u00e4ivitamisprotsessi etapp, mis osaleb s\u00fcsteemi edasises k\u00e4ivitamises \u2013 BIOS-ist kuni operatsioonis\u00fcsteemi ja rakendusteni. See peab kinnitama iga j\u00e4rgmist k\u00e4ivitamisetappi. Selleks kasutatakse igas etapis digitaalsete allkirjadega v\u00f5tmestikku. \u00dcks populaarsemaid riistvarakaitse v\u00f5tme standardeid on TPM (Trusted Platform Module, usaldusv\u00e4\u00e4rne platvormimoodul).<\/p>\n<p><img decoding=\"async\" alt=\"Avatud l\u00e4htekoodiga kiip OpenTitan asendab Intel ja ARM omandi \u00f5igusi\" src=\"\/wp-content\/uploads\/2019\/11\/f7d282d85ae0d7bdc0cbd7e702da4df3.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Usaldusjuure kehtestamine. \u00dclaltoodud n\u00e4itab viie-etapilist laadimist, mis loob usaldusketi ja algab muutumatust m\u00e4lust, asuvast k\u00e4ivitajast. Igas etapis kasutatakse avalikku v\u00f5tit, millega kinnitatakse j\u00e4rgmise laaditava komponendi autentimine. Illustreeriv joonis Perry Lee raamatust <noindex><a rel=\"nofollow\" href=\"https:\/\/dmkpress.com\/catalog\/computer\/os\/978-5-97060-672-8\/\">\u201eAsjade Interneti arhitektuur\u201c<\/a><\/noindex><\/i><\/p>\n<p>RoT-i saab k\u00e4ivitada erinevates viisides:<\/p>\n<ul>\n<li>pildi ja usaldusv\u00f5tme laadimine p\u00fcsivara v\u00f5i muutumatust m\u00e4lust;\n<\/li>\n<li>usaldusv\u00f5tme hoidmine \u00fchekordselt programmeeritavas m\u00e4lus fuse-bitide abil;\n<\/li>\n<li>koodi laadimine kaitstud m\u00e4lupiirkonnast kaitstud salvestusse.<\/li>\n<\/ul>\n<p>\nErinevates protsessorites on usaldusjuur rakendatud erinevalt. Intel ja ARM<br \/>\ntoetavad j\u00e4rgmisi tehnoloogiaid:<\/p>\n<ul>\n<li><b>ARM TrustZone<\/b>. ARM m\u00fc\u00fcb chipitootjatele patenteeritud siiplaadi, mis pakub usaldusjuurt ja muid turvamehhanisme. Seega eraldatakse mikroprotsessor ebat\u00e4iuslikust tuumast; see k\u00e4itab Trusted OS-i \u2014 kaitstud operatsioonis\u00fcsteemi, millel on selgelt m\u00e4\u00e4ratletud suhtlemisliides ebat\u00e4iuslike komponentidega. Kaitstud ressursid asuvad usaldusv\u00e4\u00e4rses tuumas ja peavad olema v\u00f5imalikult kergkaalulised. \u00dcleminek erinevat t\u00fc\u00fcpi komponentide vahel toimub riistvara konteksti vahetuse kaudu, mis elimineerib vajaduse turvalise tarkvara j\u00e4rele j\u00e4lgimiseks. \n<\/li>\n<li><b>Intel Boot Guard<\/b> on riistvaraline mehhanism, mis kontrollib alglaadimismooduli autentimisprotsessi kr\u00fcptograafiliste meetodite v\u00f5i m\u00f5\u00f5tmise protsessi abil. Alglaadimismooduli kontrollimiseks peab tootja genereerima 2048-bitise v\u00f5tme, mis koosneb kahest osast: avalikust ja eraisikust. Avalik v\u00f5ti tr\u00fckitakse plaadile \u2018detoneerimise\u2019 kaudu fusible bitide etapis tootmisprotsessis. Need bitid on \u00fchekordsed ja neid ei saa muuta. Erakordne osa v\u00f5tme genereerib digitaalse allkirja edasise autentimise etapi jaoks.<\/li>\n<\/ul>\n<p>\nOpenTitani platvorm avab v\u00f5tmeosad sellisest riistvara-tarkvara s\u00fcsteemist nagu alloleval joonisel on n\u00e4ha.<\/p>\n<p><img decoding=\"async\" alt=\"Avatud l\u00e4htekoodiga kiip OpenTitan asendab Intel ja ARM omandi \u00f5igusi\" src=\"\/wp-content\/uploads\/2019\/11\/ff75fd23edf8654b1308a4f5b06b79b1.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h1>OpenTitani platvorm<\/h1>\n<p>\nOpenTitani platvormi arendust juhib mittetulundus\u00fching lowRISC. Inseneride kogukond asub Cambridge'is (Suurbritannia) ja peamine sponsore on Google. Asutajad h\u00f5lmavad \u0160veitsi F\u00f6deraalse Tehnolooge Mingi\u00fclikooli, G+D Mobile Security, Nuvoton Technology ja Western Digital.<\/p>\n<p>Google <noindex><a rel=\"nofollow\" href=\"https:\/\/opensource.googleblog.com\/2019\/11\/opentitan-open-sourcing-transparent.html\">avalikustas kuulutuse<\/a><\/noindex> projekti Google Open Source'i ettev\u00f5tte blogis. Ettev\u00f5te teatas, et OpenTitan p\u00fc\u00fcab \u2018anda kvaliteetseid disainisoovitusi ja RoT-i integreerimist serverites, andmekeskustes, salvestusseadmetes, \u00e4\u00e4relineadustes ja mujal.\u2019<\/p>\n<p>Usaldusjuur on esimene l\u00fcli usaldusketis k\u00f5ige madalamal tasemel usaldusv\u00e4\u00e4rses arvutis\u00fcsteemis, mida s\u00fcsteem alati t\u00e4ielikult usaldab.<\/p>\n<p>RoT on kriitilise t\u00e4htsusega rakendustele, sealhulgas avalike v\u00f5tmete infrastruktuurile (PKI). See on turvas\u00fcsteemi alus, mille peal p\u00f5hineb keeruline s\u00fcsteem nagu IoT-rakendus v\u00f5i andmekeskus. Seet\u00f5ttu on m\u00f5istetav, miks Google seda projekti toetab. Praegu on tal 19 andmekeskit viiel kontinendil. Andmekeskused, salvestusv\u00f5imalused ja kriitilise t\u00e4htsusega rakendused koosnevad ulatuslikust r\u00fcnnaku pinnast, ning Google t\u00f6\u00f6tas algselt v\u00e4lja oma usaldusjuure Titan mikroskeemi selle infrastruktuuri kaitsmiseks.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/cloud.google.com\/blog\/products\/gcp\/titan-in-depth-security-in-plaintext\">Proprietaarne Titan kiip<\/a><\/noindex> Google'i andmekeskuste jaoks tutvustati esmakordselt <noindex><a rel=\"nofollow\" href=\"https:\/\/www.businessinsider.com\/google-cloud-urs-holzle-2017-3\">m\u00e4rtsis 2017<\/a><\/noindex> Google Cloud Next konverentsil. \u201eMeie arvutid viivad l\u00e4bi kr\u00fcptograafilise kontrolli igale tarkvara paketile ja seej\u00e4rel otsustavad, kas anda sellele juurdep\u00e4\u00e4s v\u00f5rgu ressurssidele. Titan integreerub sellesse protsessi ja pakub lisakaitse kihte,\u201c \u00fctlesid Google'i esindajad sellel esitlusel.<\/p>\n<p><img decoding=\"async\" alt=\"Avatud l\u00e4htekoodiga kiip OpenTitan asendab Intel ja ARM omandi \u00f5igusi\" src=\"\/wp-content\/uploads\/2019\/11\/fc7be7d9f07204c5024648659bb5c98e.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Titan mikroskeem Google'i serveris<\/i><\/p>\n<p>Titan arhitektuur kuulus Google'ile, kuid n\u00fc\u00fcd muutub see avalikuks omandiks avatud koodiga projekti raames. <\/p>\n<p>Projekti esimene etapp on RoT loogilise disaini loomine mikroskeemi tasandil, sealhulgas avatud l\u00e4htekoodiga mikroprosessor <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/lowRISC\/ibex\/\">lowRISC ibex<\/a><\/noindex>, kr\u00fcptograafilised protsessorid, riistvaraline juhuslike numberite generaator, v\u00f5tmehierarhiad ja m\u00e4lu energiat s\u00e4\u00e4stmiseks ja energiat mittes\u00e4\u00e4stvaks salvestamiseks, kaitsemehhanismid, sisend-v\u00e4ljundseadmed ja turvalised k\u00e4ivitamisprotsessid.<\/p>\n<p>Google \u00fctleb, et OpenTitan p\u00f5hineb kolmel peamisel printsiipele: <\/p>\n<ul>\n<li>iga\u00fchel on v\u00f5imalus platvormi kontrollida ja panustada; <\/li>\n<li>suurem paindlikkus, avades loogiliselt turvalise disaini, mille ei takista tootja omandi\u00f5igused;\n<\/li>\n<li>kvaliteet, mida tagavad mitte ainult disain ise, vaid ka viidatud p\u00fcsivara ja dokumentatsioon.<\/li>\n<\/ul>\n<p>\n\u201eT\u00e4nap\u00e4eva usaldusjuurtega kiibid on v\u00e4ga patenteeritud. Nad v\u00e4idavad, et on ohutud, kuid reaalsuses peate te sellele uskuma ja ei saa neid ise kontrollida,\u201d \u00fctleb Google Titani turbeekspert Dominic Rizzo. \u201eN\u00fc\u00fcd on esmakordselt v\u00f5imalus tagada turvalisus ilma pimeusku patenteeritud usaldusjuurte disainimate.\u201d <\/p>\n<p>Rizzo lisas, et OpenTitanit v\u00f5ib pidada \u201eradikaalselt l\u00e4bipaistvaks disainiks v\u00f5rreldes praeguse olukorraga\u201d.<\/p>\n<p>Arendajate s\u00f5nul ei tohi OpenTitanit mingil juhul pidada valmistoote jaoks, kuna arendust\u00f6\u00f6d pole veel l\u00f5pule viidud. Nad avasid spetsifikatsioonid ja disaini teadlikult arenduse keskpaiku, et k\u00f5ik saaksid seda kontrollida, panustada ja s\u00fcsteemi t\u00e4iustada enne tootmise algust. <\/p>\n<p>OpenTitani kiipide tootmise alustamiseks tuleb esitada taotlus ja l\u00e4bida sertifitseerimine. Tundub, et litsentsitasusid ei ole vaja maksta.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dcmiran\/blog\/474900\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0435\u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0430\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f lowRISC \u043f\u0440\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0438 Google \u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u043f\u043e\u043d\u0441\u043e\u0440\u043e\u0432 5 \u043d\u043e\u044f\u0431\u0440\u044f 2019 \u0433\u043e\u0434\u0430 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u043f\u0440\u043e\u0435\u043a\u0442 OpenTitan, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u0442 \u00ab\u043f\u0435\u0440\u0432\u044b\u043c \u043e\u043f\u0435\u043d\u0441\u043e\u0440\u0441\u043d\u044b\u043c \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c \u043f\u043e \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044e \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439, \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u043c\u0438\u043a\u0440\u043e\u0441\u0445\u0435\u043c \u0441 \u043a\u043e\u0440\u043d\u0435\u043c \u0434\u043e\u0432\u0435\u0440\u0438\u044f (RoT) \u043d\u0430 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u043c \u0443\u0440\u043e\u0432\u043d\u0435\u00bb. OpenTitan \u043d\u0430 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0435 RISC-V\u00a0\u2014 \u043c\u0438\u043a\u0440\u043e\u0441\u0445\u0435\u043c\u0430 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0430\u0445 \u0432 \u0434\u0430\u0442\u0430-\u0446\u0435\u043d\u0442\u0440\u0430\u0445 \u0438 \u0432 \u043b\u044e\u0431\u043e\u043c \u0434\u0440\u0443\u0433\u043e\u043c \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438, \u0433\u0434\u0435 \u043d\u0443\u0436\u043d\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0442\u044c [&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":[688],"tags":[],"class_list":["post-52523","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0435\u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0430\u044f.\" \/>\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\/et\/blog\/administrirovanie\/opensorsnyj-chip-opentitan-zamenit-proprietarnye-korni-doveriya-intel-i-arm\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta 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