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4JHOFE)551&YDIBOHFT 49( ͱ͸ͳʹ͔ 49(ͷ࢓૊Έ͔Β".1࿈ܞͷಋೖ·Ͱ େ௡ൟथ 49(4UVEZ ೥݄̑̎̔೔

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಺༰ 49(ͷ͘͠Έ 49(".1γεςϜࣄྫ BNQQBDLBHFSʹ͍ͭͯ 49(ಋೖৼΓฦΓ

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49(ͷ͘͠Έ

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໰୊ɿԿ͕ҧ͏ʁ 4JHOFE)551&YDIBOHFT 4JHOFE&YDIBOHF 49(

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ղ౴ 4JHOFE)551&YDIBOHFT࢓༷ͷਖ਼໊ࣜশ 4JHOFE&YDIBOHF࿩͍ͯ͠Δ࣌ΈΜͳ࢖͍ͬͯΔݴ༿ 49(ɿ֦ுࢠ΋͘͠͸ུশදه

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໰୊Ͳ͕ͬͪ49( " #

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ղ౴ " # 49( ".1

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໰୊Ͳ͕ͬͪ49( " #

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ղ౴ " # 49( )5514

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)5514ͱ49(ͷҧ͍ )5514 49( %JTUSJCVUPS 1VCMJTIFS ௨৴ΛकΔ ίϯςϯπΛकΔ ηΩϡΞνϟωϧ FYBNQMFDPN FYBNQMFDPN QVCMJTIFSͷPSJHJOͰදࣔ ॺ໊ ॺ໊

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)5514ͱ49(ͷҧ͍ )5514 49( ػີੑ 㾎 /" ׬શੑ 㾎 㾎 ೝূ 㾎 㾎 ൱ೝ๷ࢭ /" 㾎 0SJHJO ઀ଓઌ 1VCMJTIFS อޢ͍ͯ͠Δ࣌ؒ ௨৴͍ͯ͠Δؒ ਺ඦϛϦඵఔ౓ ॺ໊ͷ༗ޮظؒ ࠷େ̓೔ؒ )551ͷ੍ݶ /" ΩϟογϡՄೳͳίϯςϯπݶఆ (&5ݶఆɺېࢭϔομ༗

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49(ͷ΍ΓऔΓํ๏छ 4BNF0SJHJO DSPTTPSJHJO 4FSWFS1VTI BQQMJDBUJPO TJHOFEFYDIBOHF ϑΥʔϚοτ 1VTI 1SPNJTF DSPTTPSJHJO 4FSWFS1VTI "DDFQUBQQMJDBUJPOTJHOFEFYDIBOHFWC 4JHOBUVSF 4JHOFE)FBEFST 49(ϑΝΠϧ &/"#-&@$3044@ 03*(*/@164) &/"#-&@$3044@ 03*(*/@164) ࠓ೔ͷ࿩

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୅දతͳ49(ͷϢʔεέʔε ΦϑϥΠϯ ΦϯϥΠϯ ୅දྫ49(".1 49($FSU 1VCMJTIFS %JTUSJCVUPS )551ϦΫΤετ )551Ϩεϙϯε )551ϦΫΤετ )551Ϩεϙϯε ύοΫͯ͠ॺ໊ ॺ໊ݕূͯ͠࠶ੜ 49(ϑΝΠϧ

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49(".1γʔέϯεਤ ݕࡧαʔϏε ".1$BDIF 0SJHJO 6" 4FBSDI 4&31 1SFGFUDI 49( (&5 $FSU$IBJO0$41 49( $FSU$IBJO0$41 -PDBM$BDIF 7FSJGZ OBWJHBUJPO -PDBM$BDIF ".1࠷దԽ 5SBOTGPNFS 0SJHJOʹΞΫηε͠ͳ͍ ͜ͱͰ1SJWBDZΛอޢ "DDFQUBQQMJDBUJPOTJHOFEFYDIBOHFWC ".1$BDIF5SBOTGPSNHPPHMFW 7BSZ".1$BDIF5SBOTGPSN #PUΫϩʔϧ (&5 #PUΫϩʔϧ DFSUVSMॻ͖׵͑ JOEFYԽ %JTUSJCVUPS 1VCMJTIFS

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ݕࡧ݁Ռ 4&31 ͔Β 49(Λ1SFGFUDI

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49(7FSJGZͷঢ়گ EFWUPPM্ωοτϫʔΫύωϧͷ1SFWJFXͰ֬ೝͰ͖·͢

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49(ͷঢ়گ w $ISPNF.ΑΓEFGBVMUͰFOBCMF όʔδϣϯC w J04൛͸ඇରԠɻݱঢ়ϞόΠϧ؀ڥͰ49(͕࢖͑Δͷ͸ "OESPJE$ISPNFͷΈ w .BD04൛*&&EHF $ISPNJVNϕʔε Ͱ΋49(ಈ࡞֬ೝࡁ w (PPHMF4FBSDIͰ݄த०ΑΓ49(".1Λਖ਼ࣜରԠ w $MPVEqBSF΋49(ػೳఏڙ։࢝ (6*ϕʔε w ඪ४Խʜ·ͩΘ͔Γ·ͤΜɻ%*41"5$)&4$"1& 8PSLTIPQ

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8FC1BDLBHJOH࢓༷֓ཁ ESBGUZBTTLJOIUUQPSJHJO TJHOFESFTQPOTF ESBGUJFUGIUUQCJT IFBEFSTUSVDUVSF ESBGUUIPNTPO IUUQNJD ESBGUZBTTLJOXQBDL CVOEMFEFYDIBOHFT -PBEJOH4JHOFE &YDIBOHFT 8)"58( 'FUDI #VOEMF 49( 'FUDIʹର͢Δ ϞϯΩʔύον )551ϘσΟͷ )BTI%JHFTU ΑΓѻ͍΍͍͢)551 ϔομͷهड़ॻࣜ 8FC1BDLBHJOH࢓༷ 3'$ $#03 #JOBSZ+40/ͷ γϦΞϥΠζ C೥݄࣌఺ IUUQTHJUIVCDPN8*$(XFCQBDLBHF

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.FSLMF*OUFHSJUZ$POUFOU&ODPEJOH )BTI "cc1SPPG#ccY " # $ " # $ )5513FTQPOTF#PEZ ST SFDPSETJ[F ST " 1SPPG# # 1SPPG$ $ .*$& %JHFTUNJTIB'037ʜ )BTI #cc1SPPG$ccY )BTI $ccY 1SPPG$ 1SPPG# )551Ϩεϙϯεϔομ ϔομ৘ใͰ#PEZͷ ׬શੑΛνΣοΫ 49(࢓༷Ͱ͸SFDPSETJ[F͸,#ҎԼʹ੍ݶ

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49(ϑΝΠϧͷத਎ C sxg1-b3 ϚδοΫ fallbackURL 49(ݕূ͕ࣦഊͨ͠৔߹ʹΞ Ϋηε͢Δ63- signature ॺ໊σʔλ signedHeaders )551Ϩεϙϯεϔομ $#03ܗࣜ payload body )551ϨεϙϯεͷϘσΟ .*$&ܗࣜ sig ॺ໊஋ integrity )551ϨεϙϯεϘσΟͷϋογϡΞϧΰϦ ζϜ validity-url ৽͍͠ॺ໊σʔλΛऔಘ63- ݱࡏະ࣮૷ cert-url ূ໌ॻσʔλͷ63- ॺ໊ର৅֎ cert-sh256 ূ໌ॻσʔλͷϋογϡ஋ ed25519key ॺ໊ݕূ͢Δެ։ݤ ݱࡏະ࣮૷ date ॺ໊ͨ࣌ؒ͠ expire ॺ໊ͷ༗ޮظݶ ࠷େ೔ؒ sxg1-b3 (8) fallbackUrl length (2) fallbackURL sigLength (3) headerLength (3) signature signedHeaders payload body

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49(Ͱॺ໊͍ͯ͠Δσʔλ Y Y YY )551&YDIBOHF Y DFSUTIB WBMJEJUZVSMMFO WBMJEJUZVSM EBUF FYQJSFT SFRVFTU6SMMFO SFRVFTU6SM SFTQPOTF)FBEFSTMFO SFTQPOTF)FBEFST C͔ΒSFRVFTUϔομ͸আ֎ w 49(ূ໌ॻͷൿີ伴Λ࢖ͬͯFDETBXJUI4)" TFDQS Ͱॺ໊ w 49(ূ໌ॻͷެ։伴Λ࢖ͬͯॺ໊Λ7FSJGZ w ॺ໊ͷ7FSJGZ͕੒ޭͯ͠ϨεϙϯεϘσΟͷ.*$&νΣοΫ͕Ͱ͖ͨΒ49(͕WBMJE

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49(ͷத਎ $#03 .*$& ॺ໊

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49(ͷத਎

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$FSU$IBJO$#03ͷத਎ $#03ܗࣜ ݱࡏͷ࣌ࠁ Ͱ༗ޮʁ 49(֦ு༗ $5 ϩά༗ʁ ೔Ҏ಺ɺݱࡏ༗ޮʁʁ SPPU$"·Ͱ ॺ໊ݕূ 6'%$4DSPMM 6%⛓$IBJOT

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49(ېࢭ)551ϔομ $POOFDUJPO ,FFQ"MJWF 1SPYZ$POOFDUJPO 5SBJMFS 5SBOTGFS&ODPEJOH 6QHSBEF "VUIFOUJDBUJPO$POUSPM "VUIFOUJDBUJPO*OGP $MFBS4JUF%BUB 0QUJPOBM888"VUIFOUJDBUF 1SPYZ"VUIFOUJDBUF 1SPYZ"VUIFOUJDBUF*OGP 1VCMJD,FZ1JOT 4FD8FC4PDLFU"DDFQU 4FU$PPLJF 4FU$PPLJF 4FU1SPpMF 4USJDU5SBOTQPSU4FDVSJUZ 888"VUIFOUJDBUF )PQCZ)PQϨεϙϯεϔομ 4UBUFGVMϨεϙϯεϔομ 49(Խ͢Δ".1αʔό͔ΒͷϨεϙϯεʹ্هϔομ͕ೖ͍ͬͯͳ͍͔஫ҙ͢Δ BNQQLHͰ͸&SSPS0O4UBUFGVM)FBEFSTͷઃఆͰ੍ޚͰ͖·͢ɻ

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BNQQBDLBHFS ʹ͍ͭͯ HJUIVCDPNBNQQSPKFDUBNQQBDLBHFS SFMFBTFCSBODI1SPEVDUJPO༻ϒϥϯν NBTUFSCSBODI։ൃϒϥϯν

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BNQQBDLBHFSఏڙίϚϯυ w DNEBNQQLHBNQQLHຊମ w DNEBNQQLH@EM@TYH49(ͱূ໌ॻΛμ΢ϯϩʔυ w DNEBNQQLH@UFTU@DBDIF49(Λఏڙ͢Δ؆қΩϟογϡαʔό w DNEHBUFXBZ@TFSWFSH31$Ͱ49(Λੜ੒͢Δήʔτ΢ΣΠαʔό w DNEUSBOTGPSN".1࠷దԽΛߦ͏ίϚϯυ

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BNQQLHUPNM NBTUFS 1PSU -JTUFOϙʔτ EFGBVMU -PDBM0OMZ MPDBMIPTUͰ-JTUFO͢Δ͜ͱΛڧ੍ EFGBVMUGBMTF $FSU'JMF 49(ূ໌ॻͷϑΝΠϧ αʔόূ໌ॻ தؒূ໌ॻ 1&.ܗࣜ ,FZ'JMF 49(ূ໌ॻͷൿີ伴ϑΝΠϧ 1&.ܗࣜ 0$41$BDIF 0$41σʔλͷΩϟογϡϑΝΠϧͷύε 'PSXBSEFE3FRVFTU)FBEFS GFUDI͢Δࡍʹసૹ͢ΔϦΫΤετϔομ <<63-4FU>> <63-4FU4JHO> ॺ໊༻ͷઃఆ ඞਢ %PNBJO ॺ໊͢ΔυϝΠϯ 1BUI3& ॺ໊ΛڐՄ͢Δ1BUI EFGBVMU 1BUI&YDMVEF3& ॺ໊ΛڐՄ͠ͳ͍1BUI 2VFSZ3& ॺ໊ΛڐՄ͢Δ2VFSZύϥϝʔλ EFGBVMU &SSPS0O4UBUFGVM)FBEFS TUBUFGVMϔομ͕͋ͬͨΒQSPYZͤ͞Δ͔࡟আ͢Δ͔ .BY-FOHUI 63-ͷ࠷େ௕ EFGBVMU <63-4FU'FUDI> ".1ίϯςϯπΛ'FUDI͢Δઃఆ Φϓγϣϯ 4DIFNF GFUDIΛڐՄ͢ΔTDIFNB EFGBVMUIUUQT 4BNF1BUI ॺ໊ͱಉ͡QBUIͰGFUDI͢Δ͜ͱΛڧ੍ͤ͞Δ %PNBJO3& GFUDIΛڐՄ͢ΔυϝΠϯͷύλʔϯ %PNBJO GFUDI͢ΔυϝΠϯ 1BUI3& GFUDIΛڐՄ͢Δ1"5) EFGBVMU 2VFSZ3& GFUDIΛڐՄ͢Δ2VFSZύϥϝʔλ EFGBVMU

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BNQQLH DPOpH DPOpHϑΝΠϧͷࢦఆ EFWFMPQFNFOU w $BO4JHO)551&YDIBOHF֦ு͕ͳ͍ূ໌ॻͷར༻ΛڐՄ͢Δ w MPDBMIPTUѼͷ63-͚ͩڐՄ w ".1$BDIF5SBOTGPSN"DDFQUϔομ͸ඞཁͳ͍ JOWBMJEDFSU $BO4JHO)551&YDIBOHF֦ு͕ͳ͍ূ໌ॻͷར༻ΛڐՄ͢Δ ϩά͸ඪ४ग़ྗͷΈ ίϚϯυϥΠϯϑϥά

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5SBOTGPSNFS w ͜Ε·Ͱ".1$BDIFͰ(PPHMF͕".1࠷దԽॲཧΛߦͬͯ ͖ͨ ".1ͷSVOUJNFWBMVFͷೖΕࠐΈ΍JOMJOFԽFUD w 49(Ͱ͸ॺ໊ͨ͠ޙͰ͸࠷దԽ͕ෆՄೳɻ49(Խͷલʹ΍ Δඞཁ͕͋Δɻ w 5SBOTGPSNFSͷࢦఆΛ".1$BDIF5SBOTGPSNFSϔομͰ ωΰγΤʔγϣϯ͢Δɻόʔδϣϯ͸िؒͰ্͕Δ༧ఆ w ".1$BDIF5SBOTGPSNHPPHMFW w ".1$BDIF5SBOTGPSNBOZ #PU IUUQTHJUIVCDPNBNQQSPKFDUBNQIUNMCMPCNBTUFSTQFDBNQDBDIFUSBOTGPSNNE 7BSZ".1$BDIF5SBOTGPSN ".1$BDIF5SBOTGPSNHPPHMFW IUUQTHJUIVCDPNBNQQSPKFDUBNQIUNMCMPCNBTUFSTQFDBNQDBDIFNPEJpDBUJPOTNE

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$""ಋೖͷࡍͷ஫ҙࣄ߲ w $/".&෇͚͍ͯΔϨίʔυʹ͸ଞϨίʔυ෇͚Εͳ͍ w $/".&ઌͷ$""Λݟʹߦ͕͘$/".&ͷ਌υϝΠϯΛḷΒͳ͍ 3'$&SSBUB w $/".&ઌͷ$""͕ͳ͚Ε͹਌υϝΠϯͷ$""Λࢀর͠ʹߦ͘ɻ FYBNQMFDPN$""JTTVFEJHJDFSUDPNDBOTJHOIUUQFYDIBOHFTZFT

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)5514ͱ49(ͷηΩϡϦςΟͷҧ͍ ൿີ伴͕࿙Ӯͨ͠৔߹ ΦϑϥΠϯ؀ڥ POQBUI %/4Λม͑Εͳ͔ͬͨ Β.*5.͔͠ͳ͍ ωοτϫʔΫ؀ڥ ͍Βͳ͍ ෆਖ਼49( )5514 49( վ͟Μ ౪ௌ ͳΓ͢·͠ վ͟Μ ͳΓ͢·͠ P⒎QBUI $""Ͱূ໌ॻͷෆਖ਼ൃߦɾޡൃߦΛ๷͗ ୹ظؒ ೔ ͷ49(ূ໌ॻͰةຆԽ࣌ͷϦεΫΛ௿ݮ ࿙Ӯ

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49(".1 γεςϜࣄྫ

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".149(γεςϜ֓ཁ ݕࡧαʔϏε ".1Ωϟογϡ 49( ݕࡧ 1SFGFUDI 0$4αʔό ".1$%/ ".1αʔό BNQQLH 49(3PVUFS )55141SPYZ

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49(ಋೖৼΓฦΓ

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49(".1γεςϜಋೖɺৼΓฦΓ طଘΠϯϑϥ΁ͷӨڹΛ࠷খݶʹͯ͠ɺಋೖ͕Մೳͩͬ ͨɻ Ϣʔβ΁ͷ௚઀ϦΫΤετͷӨڹΛ͋·Γؾʹͤͣʹ͢ Μͩ ओཁϦΫΤετ͕#PUͷΫϩʔϦϯάͰ͋ͬͨͨΊ ࣄલʹ4UBHJOH؀ڥͰͷςετ͕ݶఆతͩͬͨɻ#PUΫ ϩʔϧ΍".1ΩϟογϡԽͷࢼݧ͸ϦϦʔεޙʹ͔͠Ͱ ͖ͳ͍ɻ

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49(".1γεςϜಋೖʹؔ ͢Δ஫ҙࣄ߲ w ΩϟογϡՄೳͳίϯςϯπ͔ʁ 49(ېࢭϔομ w ݸਓ৘ใ΍ηΩϡϦςΟ৘ใ͕ೖ͍ͬͯͳ͍͔ʁ w 4BNF0SJHJOʹͳͬͨΒΤϥʔʹͳΒͳ͍͔ʁ FH".1 JGSBNF w 4PGU OPUGPVOEΛͰฦ͢ ͱ͔͍ͯ͠ͳ͍͔ʁ

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