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ILPv4
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どら
April 13, 2018
Technology
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ILPv4
Interledger Protocol の次期バージョンである ILPv4 について、これまでとの違いやメリットについて解説しました。
どら
April 13, 2018
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Transcript
*OUFSMFEHFS1SPUPDPMͷࠓ *-1W֓؍ *OUFSMFEHFS6TFST+BQBO.FFUVQ ݄ ͲΒ5BJHB/BLBZBNB
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ࣗݾհ! w χοΫωʔϜͲΒɹEPSB!EPSBHUKQ w ιϑτΣΞΤϯδχΞ w খ͞ͳϕϯνϟʔˠौ୩ͷ*5ܥاۀ w ҰݴͰݴ͏ͱԿͰ͞Μɻاըɺઃܭɺ࣮ɺςετɺϦϦʔεɺӡ༻
w αʔόʔαΠυɺΫϥΠΞϯταΠυͳͲͷܦݧ͋Γ w ۀܥεϚϗήʔϜͷαʔόʔαΠυʢ+BWB1FSM.Z42-ʣ w εϚϗήʔϜͷΫϥΠΞϯταΠυʢ6OJUZ$ʣ w *-1ڈ͔Βڵຯ͕͋ͬͯௐͨΓ͍ͯ͠Δ w 8$ͷ*OUFSMFEHFS$PNNVOJUZ(SPVQʹࢀՃ w ࠓճ͋͘·Ͱݸਓͱ͓ͯ͠͠·͢ w ಛఆͷاۀίϛϡχςΟͱؔ͋Γ·ͤΜ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ աڈ࡞ ੈքΑɺ͜Ε͕ຊͷ6OJUZߨ࠲ͩ ੈքͰҰ൪͔Γ͍͢*OUFSMFEHFS1SPUPDPM ຊ࣭తͳࣄΛੈքҰ͔Γ͘͢આ໌͢Δࣄʹڧ͍Ϟνϕʔγϣϯ͕͋Δ ԿނͳΒੈքʹຊʹ͔Γʹ͍͘υΩϡϝϯτ͕ҲΕ͍ͯΔ͔Β ෭ۀ0,ͳͷͰԿ͔͋Ε͓͕͚Լ͍͞ʢসʣˡ ˞զͳ͕Βܼ࡞͕ͩͬͨձࣾͷϒϩά͕ফ໓ͯ͠ωοτ্͔Βফ͑ͯ͠·ͬͨ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ Ͳ͏࣮ͤ͢ΔͳΒWͰ࣮͍ͨ͠ͷͰɺઌͣͪ͜ΒΛษڧ͠Α͏ ͱ͍͏ࣄͰɺษڧͨ͠ࣄΛ͓͠·͢ ຊͰ͢Ͷʜ *-1Λ࣮ͯ͠Έ͓ͨΛ͔͕ͨͬͨ͠ɺ *-1W͕ग़ͯདྷͨͷͰҰ୴͓͚͋ͣʂ લॻ͖
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ͜ΕΒΛɺϒϨʔΫμϯ͓ͯ͠͠·͢ ࠓ͓͢ΔࣄԼهͰ͢ *-1ͱҰମԿͳͷ͔ʁ *-1WͱҰମԿͳͷ͔ʁ ʹ͜Ε·ͰͱԿ͕ҧ͏ͷ͔ʁ લॻ͖
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ͋͘·Ͱʮݱ࣌Ͱͦ͏͍͏ࣄʹͳ͍ͬͯ·͢ʯ ͱ͍͏ࣄͰ͢ͷͰɺ͝ҙԼ͍͞ ͳ͓ɺҙͰ͕͢ʜ *-1Wݱࡏ༷ࡦఆதͰ͢ ͜͜Ͱ͝հ͢Δͷ։ൃ్தͷͷͰ ࠓޙมߋʹͳΔՄೳੑ͕͋Γ·͢ લॻ͖
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ *-1ͱҰମԿͳͷ͔ʁ ҰԠ͓͞Β͍
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ாͱɺ؆୯ʹݴ͑ޱ࠲͕͋Γߴ͕͋Δ༷ͳγεςϜͰɺϏοτίΠϯۜߦͷγεςϜͳͲ Ձͱɺ͜͜Ͱாʹه͞ΕͨߴΛࢦ͢ ϓϩτίϧͱσʔλͷΓऔΓͷৄࡉΛऔΓܾΊ༷ͨ *-1௨৴ͷ༷Ͱ͋ͬͯϓϩμΫτࣗମΛࢦ͢༁Ͱͳ͍ *-1 *OUFSMFEHFS1SPUPDPM ͱɺҰݴͰݴ͏ͱ ҟͳΔாؒͰ ՁΛҠಈ͢ΔͨΊͷϓϩτίϧ
*-1ͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ *-1ͱҰମԿͳͷ͔ʁ ੈͷதʹ௨՟͕͍ͬͺ͍ʜɻ ཧମ੍ʢࢄɾதԝʣ৭ʑɻ ͭ·Γா͕৭ʑ͋Δɻ ૬खʹεϜʔεʹ͢ͷ݁ߏେมɻ =
₹ ⒊ ԿͰͦΜͳͷ͕ඞཁͳͷʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ தԝཧ͞Εͨαʔόʔͷா͕͍͍ਓ͍Εɺࢄཧ͞Εͨா͕͍͍ਓ͍Δ ԁ͕͍͍ਓ͕͍Ευϧ͕͍͍ਓ͍Δ͠ɺ๏ఆ௨՟Ͱͳ͍௨՟͕͍͍ਓ͍Δ ৭ʑͳਓ͕͍ΔͷͰɺ୯ҰͷΈͰશͯΛ·͔ͳ͏ͷͪΐͬͱແཧ͋ΔͰɺͱ͍͏ࣄ جຊతͳࢥͱͯ͠ɺ શੈքͷਓ͕୯ҰͷாΛ͏ͷ ແཧͰʜʂͱ͍͏લఏʹཱ͍ͬͯΔ *-1ͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ͦͷલఏͰɺͳΜͱ͔ՁΛ؆୯ʹ ૬खʹಧ͚ΒΕͳ͍͔ͳʁ *-1ͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ Ձͷཧओମ୯Ґ͕ҟͳΔ߹ʹ҆શʹࣗͷՁΛಧ͚͍ͨ ͜ͷσʔλͷΓऔΓΛհͯ͘͠ΕΔͷ͕*-1 ྫ͑ɺ͜Μͳέʔε͕ߟ͑ΒΕΔ *-1ͱҰମԿͳͷ͔ʁ #5$ ԁ ϏοτίΠϯͷࢄཧ͞Εͨlாz
ۜߦͷதԝཧ͞Εͨlாz #͞ΜʹສԁૹΓ͍ͨΜ͚ͩͲɺ ϏοτίΠϯ͔࣋ͬͯ͠ͳ͍Α ԁ͕͍͍ͳ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ "͞Μ͕ίωΫλʹࢧ͏ɺίωΫλ#͞Μʹࢧ͏ ࣮ࡍ"͞Μ໘ͳࣄΛߟ͑ͳͯ͘#͞ΜʹՁΛಧ͚ΒΕΔ ۩ମతʹʜ ྆ํʹޱ࠲ͷ͋ΔʮίωΫλʯ͕खॿ͚ *-1ͱҰମԿͳͷ͔ʁ Ledger 1
Account A Ledger 2 Account B Connector BTC/ԁ Bitcoin Ϩδϟʔ<#5$> ۜߦϨδϟʔ<ԁ> Account C1 Account C1 1BTC ૬ 0.9BTC ૬ A ͞ΜˠίωΫλ ίωΫλˠ#͞Μ ͜͜Ͱखྉ͕ͱͳ͍ͬͯ·͕͢ɺ ͋͘·ͰྫͰ͋Γͬͱখ͘͞ͳΔఆͰ͢
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ίωΫλ૬ޓʹଓ͞Ε͓ͯΓɺΣϒͷ༷ʹͳ͍ͬͯΔ ଓ͞Ε͍ͯͳ͍ਓʹՁΛಧ͚Δࣄ͕Ͱ͖Δ ͞Βʹʜ ඞཁʹԠͯ͡ෳͷίωΫλͰ࿈ଓతʹߦ͍ ՁΛϗοϓ͍ͤͯ͘͞ *-1ͱҰମԿͳͷ͔ʁ Ledger
1 Account A Ledger 3 Account B Ledger 2 Account C2 Connector 1 BTC/XRP Connector 2 XRP/A-Bank A͞Μ g.crypto.btc.abc B ͞Μ g.jp.banks.a-bank.efg Bitcoin Ϩδϟʔ<#5$> ۜߦ̖Ϩδϟʔ<=> 931Ϩδϟʔ<931> Connector 3 Connector 4 Account C1 Account C1 Account C2
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ *-1ͱҰମԿͳͷ͔ʁ ாʹΑΒͣՁΛΠϯλʔωοτ্Ͱ ૬खʹಧ͚Δࣄ͕Ͱ͖Δɻ ͜ΕΛՁͷΠϯλʔωοτɺ *OUFSOFUPG7BMVFͱݺΜͰ͍Δɻ VALUE VALUE
VALUE ࠃࡍతͳਤΛग़͢ͱۙʹײ͡ΒΕͳ͍͔͠Εͳ͍͕ɺࠃͰ͋ͬͯ૬ख ͷ͍ͬͯΔா͕ҧ͏ͱ͍͏͜ͱΑ͋͘Δ͠ɺΠϯλʔωοτ্Ͱࠃ֎ͷ αʔϏεΛڗड͢Δͱ͍͏ࣄී௨ʹ͋Δɻ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ *-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ·ͣ۩ମతʹͲ͏ࢥ͕มΘͬͨͷ͔͓͠͠ɺ ࣍ʹͦͷϝϦοτʹ͍͓ͭͯ͠͠·͢ *-1ͷಈ͖Λͬ͘͟Γཧղͨ͠ͱ͜ΖͰɺͰ*-1WͱҰݴͰݴ͏ͱʜ *-1ΛΑΓચ࿅͠ɺվળͨ͠ͷ ࢥ͕େ͖͘มΘ͍ͬͯΔ *-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ҰͰࡁ·͢ʜʁۉ࣭ʜʁετϦʔϛϯάͱʜʁ ࢥ͕େ͖͘มΘ͍ͬͯΔͬͯݴ͏͚ͲɺԿ͕มΘͬͨͷʁ େ͖ͳࢧ͍ΛҰͰࡁ·͢ͷͰͳ͘ɺ ࡉΕͷۉ࣭ͳࢧ͍ʹͯ͠ετϦʔϛϯά͢Δ ˞ࡉΕͷࢧ͍ʹ$IVOLFE1BZNFOUTͱݺΕ͍ͯΔ *-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ &TDSPXΛར༻͠ɺ1SFQBSFˠ&YFDVUFͷ ϑΣʔζίϛοτҰճͰશମͷՁΛૹ৴ ͜Ε·Ͱͷ*-1Ͱɺ͜͏͍͏ϑϩʔͰͨ͠ *-1WͱҰମԿͳͷ͔ʁ Connector (1) Prepare
with condition (2) Execute with fulfillment Ledger 1 [Sender] [Escrow] [Connector] Ledger 2 [Connector] [Escrow] [Receiver] GVMpMMNFOU҉߸Խ͞Εͨࢧ͍༰ʢ؆ུԽ͍ͯ͠Δʣ DPOEJUJPOTIB GVMpMMNFOU 4FOEFS༧Ί3FDFJWFSͱͷؒͰऔΓܾΊͨDPOEJUJPOΛࢦఆͯ͠&TDSPXʹ༬͚Δɻ &TDSPXGVMpMMNFOU͕ͳ͍ͱࢿ࢈ͷҠಈ͕ى͜Βͳ͍ɻ ཁGVMpMMNFOUʮडऔਓ͕ड͚औΔͱ͍͏ҙࢥΛࣔͨ͠ʯͱ͍͏ূɻ GVMpMMNFOUΛୈࡾऀ͕ਪଌ͢Δͷࠔɺ$POOFDUPSӕΛ͍ͯ4FOEFS͔Β౪ΉࣄͰ͖ͳ͍ɻ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ϑΣʔζίϛοτͰ͋Δ͕ɺ&TDSPXΘͣɺࡉΕʹߦ͏ جຊతʹ1BZNFOU$IBOOFMΛ͏ఆͳͷͰ܁Γฦͯ͠తʹͳ͍ *-1WͰɺ͜͏͍͏ϑϩʔʹͳΓ·͢ *-1WͱҰମԿͳͷ͔ʁ (1) - (2)
ΛɺগֹͰɺඞཁͳճ͚ͩ܁Γฦ͢ 4FOEFS$POOFDUPSͱͷؒʹ1BZNFOU$IBOOFMΛ։͍͓ͯ͘ɻ 4FOEFS༧Ί3FDFJWFSͱͷؒͰऔΓܾΊͨ$POEJUJPOΛࢦఆͯ͠$POOFDUPSʹૹ͍ۚͨ͠ࢫΛ͑Δɻ $POOFDUPSૹ͍ۚͨ͠ՁΛ"ͷͨΊͷ#BOEXJEUI͔ΒҾ͍͓ͯ͘ɻ #BOEXJEUIͱ૬खʹڐͨ͠Ұఆͷ৴༻Ͱɺ͜ΕҎ্Ұʹૹ৴ͤ͞ͳ͍ɻ 3FDFJWFS'VMpMMNFOUΛൃߦ͠ɺ$POOFDUPS-FEHFSͷ1BZNFOU$IBOOFMΛΞοϓσʔτ͢Δɻ 4FOEFS'VMpMMNFOU͕֬ೝͰ͖ͨΒ-FEHFSͷ1BZNFOU$IBOOFMΛΞοϓσʔτ͢Δɻ 1BZNFOU$IBOOFMͷΞοϓσʔτ͕֬ೝͰ͖ͨΒ$POOFDUPS#BOEXJEUIΛݩʹ͢ɻ 1BZNFOU$IBOOFM͕దʹΞοϓσʔτ͞Εͳ͔ͬͨ߹ɺ$POOFDUPSҎ߱ͷૹۚΛڋ൱͢Δɻ Connector [Bandwidth for A] [Bandwidth for B] (1) Prepare with condition (2) Execute with fulfillment Ledger 1 [Sender] [Payment Channel] [Connector] Ledger 2 [Connector] [Payment Channel] [Receiver] A B
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ͜ͷ༷ͳܗʹ͢ΔࣄͰ৭ʑͳϝϦοτ͕͋Γɺચ࿅͞Εͯ͘Δ ʮۉ࣭ʯ͜ΜͳΠϝʔδ *-1WͱҰମԿͳͷ͔ʁ *-1Wˠۉ࣭Ͱͳ͍ *-1Wˠۉ࣭ͳ$IVOLͷू·Γ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ϒϨʔΫμϯͯ͠͝આ໌͠·͢ ઃܭࢥ͔͚ͬͨͲɺԿ͕ʮચ࿅ʯ͞Εͨͷʁ ۩ମతʹɺ ̍ʣωοτϫʔΫશମͷ҆ఆੑ্͕ ̎ʣωοτϫʔΫશମͷྲྀಈੑ্͕ ̏ʣࢧ͍ͷϦεΫ͕࠷খԽ͞ΕΔ ̐ʣ࣮ࣗମ͕γϯϓϧʹͳΔ ͱ͍ͬͨϝϦοτ͕͋Δ
*-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ GVMpMMNFOU͕ૹͬͯ͜ΒΕͯGVMpMMͰ͖ͳ͍༷ͳDPOEJUJPOʢVOGVMpMMBCMFDPOEJUJPOʣΛ Θ͟ͱૹΓ͚ͭͯྲྀಈੑΛϩοΫͰ͖ͯ͠·͏ ˞&TDSPX͕λΠϜΞτ͢Δ·Ͱྲྀಈੑ͕ͳ͘ͳͬͯ͠·͏ ωοτϫʔΫશମͷ҆ఆੑ্͕ ͜Ε·ͰͷϑΣʔζίϛοτͰ ҙਤͯ͠ѱ༻͠Α͏ͱࢥ͏ͱ ̍ʣड৴ऀ͕ड͚औΓ࣌ؒΛҙʹͰ͖ͯ͠·͏ ̎ʣωοτϫʔΫͷ%P4ʹܨ͕ͬͯ͠·͏
*-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ఏڙͰ͖Δྲྀಈੑ͕͍ίωΫλେ͖ͳࢧ͍Λ୲͢ΔࣄͰ͖ͣɺد༩Ͱ͖ͳ͔ͬͨ ετϦʔϛϯάͰ͋ΕɺҰ෦Λ୲͢ΔࣄՄೳ ωοτϫʔΫશମͷྲྀಈੑ্͕ ͜Ε·ͰͷϑΣʔζίϛοτͰ େ͖ͳࢧ͍ΛҰʹߦ͓͏ͱ͢ΔͷͰ େ͖ͳֹʹͳΕͳΔ΄Ͳ د༩Ͱ͖ΔίωΫλ͕ݶΒΕͨ
*-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ϦεΫ͕࠷খԽ͞ΕΔͷͰɺηΧϯυϨΠϠʔͷ༻Λڐ༰ ࢧ͍ͷϦεΫ͕࠷খԽ͞ΕΔ େ͖ͳֹΛૹΖ͏ͱ͢ΕͦͷϦεΫେ͖͍ গֹͷύέοτʹ͚ͯૹΔࣄͰϦεΫΛ࠷খԽ *-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ྫ͑ԁΛૹΓɺ݁Ռͱͯ͠ԁಧ͍ͨͱ͢Δɻखྉԁͩͬͨͱ͔Δɻ ࣄલʹΓ͚ͨΕ͜ΕΛVOGVMpMMBCMFDPOEJUJPOͰߦ͏ɻ ૯ྔ͕গͳ͍ͷͰVOGVMpMMBCMFͰʹͳΒͳ͍ɻ ˞*-21*-1WͷखྉΛݟੵΔͨΊͷϓϩτίϧ ࣮ࣗମ͕γϯϓϧʹͳΔ *-21ͱ͍͏ϓϩτίϧ͕ͳ͘ͳΓ ࢧ͍ΛʮϕετΤϑΥʔτʯͰߦ͍ ݁Ռͱͯ͠Ͳ͏ͳΔ͔ΛݟΔͱ͍͏ߟ͑ํ
*-1WͱҰମԿͳͷ͔ʁ
*OUFSMFEHFS1SPUPDPMͷࠓ*-1W֓؍ ΦϯϨδϟʔͷ&TDSPXΛར༻͢ΔͱͲ͏ͯ͠ίϯηϯαεͷ࣌ؒʹҾ͖ͣΒΕΔ ॲཧ͕͍931-FEHFSͰඵ͔͔Δ 1BZNFOU$IBOOFMΛར༻͢ΔࣄͰΑΓߴʹͳΔ ૹ৴ֹετϦʔϛϯάͷ࣌ؒΛߟྀͯ͠Ͳ͏ͳΔ͔͜Ε͔Β࣮ݧͱ͍͏ײ͡ Ճ͑ͯʜ ͓ͦΒ͘શମతʹ͘ͳΔʢଟʣ ཧ༝ɺجຊతʹηΧϯυϨΠϠʔΛఆ͍ͯ͠Δ͔Β ΦϯϨδϟʔͷ&TDSPXར༻ͤͣ 1BZNFOU$IBOOFMΛར༻͢Δ
*-1WͱҰମԿͳͷ͔ʁ
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