{"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":"OpenTitani avatud l\u00e4htekoodiga kiip asendab Intel ja ARM patenteeritud usaldusjuured","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"OpenTitani avatud l\u00e4htekoodiga kiip asendab Intel ja ARM patenteeritud usaldusjuured\" src=\"\/wp-content\/uploads\/2019\/11\/f772b9f7e7f57a5c6a700ac0ca6110b8.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nMittekasumit taotlemata organisatsioon <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\/\">esituse<\/a><\/noindex> projekt <noindex><a rel=\"nofollow\" href=\"https:\/\/opentitan.org\">OpenTitan<\/a><\/noindex>, mida nimetatakse \u201eesimese avatud l\u00e4htekoodiga projektiks, mille eesm\u00e4rk on luua avatud, kvaliteetne usaldusjuurte (RoT) arhitektuur riistvaral\u201d.<\/p>\n<p>OpenTitan RISC-V arhitektuuril on spetsiaalselt serverites, andmekeskustes ja igasugustes seadmetes, kus on vajalik k\u00e4ivitusautentsuse tagamine, p\u00fcsivara kaitsmine muudatuste eest ning juuretagant\u00f5ukamise t\u00f5en\u00e4osuse v\u00e4listamine: emaplaadid, v\u00f5rgukaartide, ruuterid, IoT-seadmed, mobiilseadmed jne.<\/p>\n<p>Muidugi, selliseid mooduleid leidub t\u00e4nap\u00e4eva protsessorites. N\u00e4iteks Intel Boot Guard on riistvaramoodul, mis on Intel protsessorite usaldusjuur. See verifitseerib usaldusv\u00e4\u00e4rsuse ahelat UEFI BIOS-i autentsuse enne operatsioonis\u00fcsteemi k\u00e4ivitamist. Kuid k\u00fcsimus on, kui palju saame usaldada patenteeritud usaldusjuuri, arvestades, et meil pole garantiid, et disainis pole vigu, ja selle kontrollimiseks pole v\u00f5imalust? Vaata artiklit <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dsec\/blog\/326556\/\">\u201e\u0160r\u00f6dingeri usaldusv\u00e4\u00e4rne k\u00e4ivitus. Intel Boot Guard\u201d<\/a><\/noindex> kirjeldus selle kohta, kuidas \"aastaid kloonitud viga mitmete tootjate toodetes v\u00f5imaldab potentsiaalsel kurjategijal kasutada seda tehnoloogiat s\u00fcsteemis kustutamatute (isegi programmeerija poolt) peidetud rootkitide loomiseks.\"<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nVarustuse kompromiteerimise oht tarneahelas on \u00fcllatavalt reaalne: tundub, et iga elektroonikahuviline <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/news\/t\/471398\/\">v\u00f5ib kinnitada nuhiku serveri emaplaati<\/a><\/noindex>, kasutades seadmeid maksma mitte rohkem kui 200 dollarit. M\u00f5ned eksperdid kahtlustavad, et \"organisatsioonid, mille eelarve on sadades miljonites dollarites, v\u00f5ivad sellega tegeleda juba aastaid.\" Kuigi t\u00f5endeid ei ole, on see teoreetiliselt v\u00f5imalik.<\/p>\n<blockquote><p>\"Kui te ei saa riistvaralisele laadijale usaldada, 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 vahet, mida operatsioonis\u00fcsteem teeb \u2014 kui te olete operatsioonis\u00fcsteemi laadimise ajaks juba kompromiteeritud, siis \u00fclej\u00e4\u00e4nud on tehnika k\u00fcsimus. Teiega on juba k\u00f5ik.\"<\/p><\/blockquote>\n<p>\nSeda probleemi peaks lahendama esimene oma liigist avatud riistvaraplatform OpenTitan (<noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/lowRISC\/opentitan\">GitHubi hoidla<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.opentitan.org\">dokumentatsioon<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.opentitan.org\/hw\/\">riistvaraspetsifikatsioonid<\/a><\/noindex>). Proprietaarsetest lahendustest eemaldumine v\u00f5imaldab muuta \u00abkoma ja ebamugava RoT t\u00f6\u00f6stuse\u00bb, arvab Google.<\/p>\n<p>Google ise alustas Titan'i v\u00e4ljat\u00f6\u00f6tamist, avastades Intel Management Engine (ME) kiipidesse integreeritud operatsioonis\u00fcsteemi Minix. See keeruline operatsioonis\u00fcsteem laiendas ootamatult ja kontrollimatult r\u00fcnnakupinda. Google <noindex><a rel=\"nofollow\" href=\"https:\/\/www.tomshardware.com\/news\/google-removing-minix-management-engine-intel,35876.html\">p\u00fc\u00fcdles Intel Management Engine (ME) k\u00f5rvaldamise poole<\/a><\/noindex>, kuid eba\u00f5nnestunult.<\/p>\n<h1>Mis on usaldusroot?<\/h1>\n<p>\nIga etapp s\u00fcsteemi k\u00e4ivitamise protsessis kontrollib j\u00e4rgmise etapi autentimist, moodustades sellega <i>usaldusketi<\/i>.<\/p>\n<p>Usaldusv\u00e4\u00e4rsuse juur (Root of Trust, RoT) on riistvaraline autentimisprotsess, mis garanteerib, et esimese t\u00e4idetava k\u00e4su allikas usaldusketis on muutmatu. RoT on rutiinide kaitse aluseks. See on oluline etapp alglaadimisprotsessis, mis osaleb s\u00fcsteemi k\u00e4ivitamises \u2014 alates BIOS-ist kuni operatsioonis\u00fcsteemi ja rakendusteni. See peab kontrollima iga j\u00e4rgmise alglaadimise etapi autentimist. Selleks kasutatakse igas etapis digitaalallkirjastatud v\u00f5tmete komplekti. \u00dcks populaarsemaid riistvaralise v\u00f5tme kaitse standardeid on TPM (Trusted Platform Module, usaldusv\u00e4\u00e4rne platvormi moodul).<\/p>\n<p><img decoding=\"async\" alt=\"OpenTitani avatud l\u00e4htekoodiga kiip asendab Intel ja ARM patenteeritud usaldusjuured\" src=\"\/wp-content\/uploads\/2019\/11\/f7d282d85ae0d7bdc0cbd7e702da4df3.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Usaldusv\u00e4\u00e4rsuse juure loomine. \u00dclaltoodud on viieetapiline alglaadimine, mis moodustab usaldusketi ja algab alglaadijaga, mis asub muutmatul m\u00e4lul. Igas etapis kasutatakse avalikku v\u00f5tit, millega autentitakse j\u00e4rgmine laaditav komponent. Illustratsioon 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 erinevate meetoditega:<\/p>\n<ul>\n<li>pildi ja juure v\u00f5tme laadimine p\u00fcsivara v\u00f5i muutmatu m\u00e4lu kaudu;\n<\/li>\n<li>juure v\u00f5tme hoidmine \u00fchekordsetes programmeeritavates m\u00e4ludes f\u00fcsbitide abil;\n<\/li>\n<li>koodi laadimine kaitstud m\u00e4lupiirkonnast kaitstud salvestusse.<\/li>\n<\/ul>\n<p>\nErinevates protsessorites on usaldusv\u00e4\u00e4rsuse juur rakendatud erinevalt. Intel ja ARM<br \/>\ntoetavad j\u00e4rgmisi tehnoloogiaid:<\/p>\n<ul>\n<li><b>ARM TrustZone<\/b>. ARM m\u00fc\u00fcb kiibitootjatele patendi alusel valmistatud siinkrooni, mis pakub usaldusv\u00e4\u00e4rsuse juurt ja teisi turvamehhanisme. Nii eraldatakse mikroprotsessor ebaturvalisest tuumast; see k\u00e4itab Trusted OS-i \u2014 kaitstud operatsioonis\u00fcsteemi, millel on selgelt m\u00e4\u00e4ratletud suhtlemisliides ebaturvaliste komponentidega. Kaitstud ressursid asuvad usaldusv\u00e4\u00e4rses tuumas ja need peaksid olema v\u00f5imalikult kerged. \u00dcleminek erinevat t\u00fc\u00fcpi komponentide vahel toimub riistvaralise konteksti vahetuse kaudu, mis elimineerib vajaduse turvalise tarkvara j\u00e4rele j\u00e4lgimiseks. \n<\/li>\n<li><b>Intel Boot Guard<\/b> \u2014 see on riistvaraline mehhanism kr\u00fcptograafiliste meetodite v\u00f5i m\u00f5\u00f5tmise protsessi abil k\u00e4ivitusploki autentimise kontrollimiseks. K\u00e4ivitusploki kontrollimiseks peab tootja genereerima 2048-bitise v\u00f5tme, mis koosneb kahest osast: avalikust ja privaatsetest v\u00f5tmetest. Avalik v\u00f5ti prinditakse plaadile \u201edetoneerimise\u201d kaudu tootmisetapis. Need bitid on \u00fchekordsed ja ei ole muudetavad. Privaatne v\u00f5tmeosa genereerib digitaalse allkirja k\u00e4ivitusprotsessi autentimise j\u00e4rgneval etapil.<\/li>\n<\/ul>\n<p>\nOpenTitani platvorm avab v\u00f5tmeosad sellisest riistvara-tarkvaras\u00fcsteemist, nagu on n\u00e4idatud alloleval diagrammil.<\/p>\n<p><img decoding=\"async\" alt=\"OpenTitani avatud l\u00e4htekoodiga kiip asendab Intel ja ARM patenteeritud usaldusjuured\" 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 meeskond asub Cambridge'is (\u00dchendkuningriigis) ning p\u00f5hisponsoriks on Google. Asutajapartnerite hulka kuuluvad Z\u00fcrichis asuv \u0160veitsi F\u00f6deraalse Tehnika\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 teadaande<\/a><\/noindex> projekti Google Open Source'i ettev\u00f5tte ettev\u00f5tte blogis. Ettev\u00f5te teatas, et OpenTitan p\u00fc\u00fcdleb \u00abkvaliteetsete RoT disaini- ja integreerimissoovituste pakkumise suunas serverites, andmekeskustes, servaseadmetes ja mujal\u00bb.<\/p>\n<p>Usaldusjuur on usaldusv\u00e4\u00e4rse arvutusmooduli madalaima taseme usaldusketi esimene l\u00fcli, mida s\u00fcsteem alati t\u00e4ielikult usaldab.<\/p>\n<p>RoT on kriitilise t\u00e4htsusega rakendustes, sealhulgas avalike v\u00f5tmete infrastruktuurides (PKI). See on keeruliste s\u00fcsteemide, nagu IoT rakendus v\u00f5i andmekeskus, turvas\u00fcsteemi alus. Seet\u00f5ttu on arusaadav, miks Google seda projekti toetab. Praegu on neil 19 andmekeskust viiel mandril. Andmekeskused, ladustamine ja kriitilised rakendused moodustavad ulatusliku r\u00fcnnakupinna ja selle infrastruktuuri kaitsmiseks on Google oma Titan kiibi usaldusjuure algselt v\u00e4lja t\u00f6\u00f6tanud.<\/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 andmekeskustele esitlemine toimus 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. \"Meie arvutid teevad iga tarkvara paketi osas kr\u00fcptograafilise kontrolli ja otsustavad seej\u00e4rel, kas anda sellele ligip\u00e4\u00e4s v\u00f5rgu ressurssidele. Titan integreerib selle protsessi ja pakub lisakaitse kihte,\" r\u00e4\u00e4kisid Google'i esindajad esitluses.<\/p>\n<p><img decoding=\"async\" alt=\"OpenTitani avatud l\u00e4htekoodiga kiip asendab Intel ja ARM patenteeritud usaldusjuured\" src=\"\/wp-content\/uploads\/2019\/11\/fc7be7d9f07204c5024648659bb5c98e.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Google'i serveri Titan kiip<\/i><\/p>\n<p>Titan arhitektuur oli Google'i omand, kuid n\u00fc\u00fcd muutub see avatud l\u00e4htekoodiga projekti raames avalikuks. <\/p>\n<p>Projekti esimene etapp \u2014 RoT loogilise disaini loomine kiibi tasemel, sealhulgas avatud l\u00e4htekoodiga mikroprotsessor <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/lowRISC\/ibex\/\">lowRISC ibex<\/a><\/noindex>, kr\u00fcptograafilised protsessorid, riistvara juhuslike arvude generaator, v\u00f5tmete ja m\u00e4lu hierarhiad energia s\u00f5ltumatuks ja s\u00f5ltumatuks salvestamiseks, kaitsemehhanismid, sisend-v\u00e4ljund seadmed ja turvalised laadimisprotsessid.<\/p>\n<p>Google \u00fctleb, et OpenTitan p\u00f5hineb kolmel p\u00f5hialusel: <\/p>\n<ul>\n<li>iga\u00fchel on v\u00f5imalus platvormi kontrollida ja oma panus anda; <\/li>\n<li>suurem paindlikkus t\u00e4nu loogiliselt turvalise disaini avamisele, mis ei ole piiratud omaniku keeldudega.\n<\/li>\n<li>kvaliteet, mida tagavad mitte ainult disain ise, vaid ka viidatud t\u00f6\u00f6tlus ja dokumentatsioon.<\/li>\n<\/ul>\n<p>\n\u201eT\u00e4nap\u00e4eva usaldusv\u00e4\u00e4rsus mikrokiibides on v\u00e4ga omanikup\u00f5hine. Nad deklareerivad turvalisust, kuid tegelikult peate selle usaldama ja ei saa seda ise kontrollida,\u201c r\u00e4\u00e4gib Google Titan projekti juhtiv turbeekspert Dominic Rizzo. \u201eK\u00e4\u00e4rida on esmakordselt v\u00f5imalus, et tagada turvalisus ilma arendajate omavahelise usaldusliku disaini pimeuseta. Seega on alus mitte lihtsalt tugev, vaid seda saab ka kontrollida.\" <\/p>\n<p>Rizzo lisas, et OpenTitanit v\u00f5ib pidada \"radikaalselt l\u00e4bipaistvaks disainiks, v\u00f5rreldes praeguse olukorraga\".<\/p>\n<p>Arendajate s\u00f5nul ei tohiks OpenTitanit kindlasti k\u00e4sitleda valmis tootena, kuna arendust\u00f6\u00f6d pole veel l\u00f5pule viidud. Nad avasid spetsifikatsioonid ja disaini spetsiaalselt arenduse k\u00e4igus, 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 n\u00f5uta.<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 5.0.0.1 - 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) 5.0.0.1\" \/>\n\t\t<meta 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