HTLC入門

HTLCೖ໳ 2018/8/26 ΦϑνΣʔϯΞΧσϛʔϋοΫσʔβ খᔹ प Shu Kobuchi

ࣗݾ঺հ খᔹपɹ4IV,PCVDIJɹ!TIV@LPCTIVLPCVDIJ  χοΫωʔϜɿ͜Ϳγϡʔ  ୅໨ϒϩοΫஉɹIUUQTXXXZPVUVCFDPNXBUDI WBU$*2B8*6: ϛεϏοτίΠϯ  ౻ຊਅҥࢯͷΠϯλϏϡʔهࣄ  IUUQTHPPHMKNRL !2 ◾03"/(&#&". 
ɹɹখᔹ͕.BJOOFUͰཱ͍ͯͯΔ  ɹɹɹDMJHIUOJOHϊʔυ ◾גࣜձࣾΩϡʔϒγεςϜ  ɹɹܦӦઓུຊ෦ٕज़ઓུࣨ  ɹɹɹ*5εϖγϟϦετ

ίϛϡχςΟ঺հ ҉߸௨՟ಡॻձษڧձɹIUUQTDSZQUPDVSSFODZDPOOQBTTDPN  04$౦ژʹʮ೔ຊ҉߸௨՟Ϣʔβձʯͱͯ͠ग़ల  ॳ৺ऀʙதڃऀ޲͚ͷʮϏοτίΠϯͱ͔ษڧձʯʢ݄̍ճʣ  தڃऀʙ্ڃऀ޲͚ͷʮ҉߸௨՟ྠಡձʯʢ݄̍ճʣ  DSBTIBDBEFNZ *5ܥಈը഑৴ ʹͯϏοτίΠϯͱ͔ษڧձͷΞʔΧΠϒ഑৴த  ɹIUUQTDSBTIBDBEFNZMFDUVSFSDSZQUPDVSSFODZ  ϩάϛʔ5FDIʢςοΫʣ
ษڧձॻ͖ى͜͠ ͱͷఏܞ΋DSBTIBDBEFNZΛհͯ͠։ ࢝༧ఆ  IUUQTMPHNJKQUFDI  ೔ຊ҉߸௨՟Ϣʔβձ ౦ژࢧ෦ 04$౦ژ΁ͷग़ల  ࣍ճ͸݄೔ ౔ ೔ ೔ !3

)5-$ೖ໳

)BTIFE5JNF-PDL$POUSBDU தؒऀΛܦ༝͢ΔϚϧνϗοϓૹۚΛ࣮ݱ νϟωϧͷ։ઃ૬ख͕૿͑ΔͱɺPGϚϧνγάѼʹ͢ΔσϙδοτͰ ϩοΫ͞ΕΔ#JUDPJO͕૿͑Δ νϟωϧະ։ઃͷ૬खͱ΋νϟωϧ։ઃࡁΈͷୈࡾऀΛܦ༝ܾͯ͠ࡁ !5 σϙδοτͷ #JUDPJO͕ଟ͍
σϙδοτͷ #JUDPJOΛ཈͑ΒΕΔ

தؒऀΛ৴༻ͤͣͱ΋ૹۚͰ͖Δ࢓૊Έ͕ඞཁ "MJDF͸$BSPMͱ௚઀νϟωϧΛష͍ͬͯͳ͍͕ɺ#PCΛ௨ͯ͠ૹ͕ۚͰ͖ͦ͏ "MJDF͕#PCʹ$BSPM΁#5$ૹۚ͢ΔΑ͏ʹݴͬͯ΋ɺ#PC͕౪ΉՄೳੑ ͸൱ఆͰ͖ͳ͍ #PC͕৴༻Ͱ͖ͳͯ͘΋ૹۚͰ͖Δ࢓૊Έ͕ඞཁ !6 "MJDF #PC $BSPM

ৄ͘͠͸%SZKBࢯͷࢿྉΛ 5IBEEFVT%SZKB -JHIUOJOH/FUXPSL8IJUFQBQFSஶऀͷҰਓʣ  IUUQTCDKQBSDIJWFTFBTPONBUFSJBMT @-JHIUOJOH@/FUXPSLQEG !7

)5-$ͷ؆қతͳྫ ᶃ4FDSFU3Λ࡞੒͠ɺ4FDSFU)BTI3Λ"MJDFʹ࿈ܞ ᶄ)5-$59"Ͱɺ"MJDF͔Β#PC΁ͷࢧ෷͍Λอূ ᶅ)5-$59#ͱᶆ)5-$59$Ͱ#PC͔Β$BSPM΁ͷૹۚ ᶄ)5-$59"ͱᶇ)5-$59#Ͱ"MJDF͔Β#PC΁ͷૹۚ !8 "MJDF #PC $BSPM 4FDSFU3
ᶃ)BTI3 ᶄ)5-$59" 4FDSFU3ͱ#PC`T1SJW,FZͰೖखՄ ·ͨ͸ɺ̎िؒܦաޙ"MJDF`T1SJW,FZ ͰೖखՄ ᶅ)5-$59# 4FDSFU3ͱ$BSPM`T1SJW,FZͰೖखՄ ·ͨ͸ɺ̎िؒܦաޙ#PC`T1SJW,FZ ͰೖखՄ ᶆ)5-$59$ 4FDSFU3ͱ$BSPM`T1SJW,FZͰೖख ᶇ)5-$59# 4FDSFU3ͱ#PC`T1SJW,FZͰೖख 4FDSFU3

தؒऀ͔Βݟͯ࢝఺ɾऴ఺ͷ৴པ͕ͳͯ͘΋࢖͑ΔΑ͏ʹ #JUDPJOͱ4FDSFU3ͷަ׵͚ͩͰ͸ෆे෼ !9 ҆౔ໜږࢯϒϩάʮ%FWFMPQNFOUXJUIQMFBTVSFʯΑΓ IUUQTUFDINFEJBUIJOLIBUFOBCMPHDPNFOUSZ

)5-$͸#*1ͰൃҊ #JUDPJO*NQSPWFNFOU1SPSPTBMʢϏοτίΠϯվળఏҊʣ  #*1Ͱ)5-$͕ൃҊ͞Εͨ  IUUQTHJUIVCDPNCJUDPJOCJQTCMPCNBTUFSCJQNFEJBXJLJ !10

)5-$͸ΤεΫϩʔత -JHIUOJOH/FUXPSL͚ͩͰͳ͘ɺΦϯνΣʔϯʗΦϑνΣʔϯ໰ΘͣΤεΫϩʔ औҾʹԠ༻Ͱ͖Δ෯޿͘࢖͑Δߟ͑ํ &UIFSFVN4NBSU$POUSBDUͰ΋)5-$Λ࢖͑ͦ͏ #5$⁶&5)ͷΑ͏ͳҟछνΣʔϯؒऔҾͰ͋Δ"UPNJD4XBQʢΞτϛοΫ εϫοϓʣʹ΋)5-$͕࢖ΘΕ͍ͯΔ  IUUQT[PPNCMDDPNBUPNJDTXBQ -JHIUOJOH/FUXPSLͷνϟωϧؒʢ"MJDF⁶#PCͷνϟωϧͱ#PC⁶$BSPMͷ νϟωϧʣऔҾ΋"UPNJD4XBQͰ͋Δ  IUUQTUFDINFEJBUIJOLIBUFOBCMPHDPNFOUSZ
!11

-JHIUOJOH/FUXPSLΛֶͿ্ͰಡΜͰ͓͖͍ͨॻ੶ ࢁ࡚ॏҰ࿠ɾ҆౔ໜږɾాதढ़ଠ࿠ஶ ʰϒϩοΫνΣʔϯɾϓϩά ϥϛϯάԾ૝௨՟ೖ໳ʱߨஊࣾ !12

ࢀߟࢿྉɹ-JHIUOJOH/FUXPSL࣮༻ࣄྫ

-JHIUOJOH/FUXPSLΛ5FTUOFUͰମݧ 4UBS#MPDLT IUUQTTUBSCMPDLTBDJORDP ◾ձܭ͸23ίʔυಡΈऔΓ  ɹɹεϚϗ౳ͰಡΈऔܾͬͯࡁ  ɹɹΦϯνΣʔϯͱ͸ผن֨ͷૹۚํ๏

8PP$PNNFSDFͷԾ૝௨՟ܾࡁ #JUDPJO΍&UIFSFVNΛ͸͡Ίͱ͢Δ༷ʑͳԾ૝௨՟ܾࡁʹରԠ ◾#JUDPJOͱ"MUDPJO ѥछ   ɹɹ#JUDPJO  #JUDPJO$BTI  -JUFDPJO  %BTI  ͳͲ
IUUQTKBXPSEQSFTTPSHQMVHJOTHPVSM XPPDPNNFSDFCJUDPJOBMUDPJOQBZNFOUHBUFXBZ BEEPO ◾&UIFSFVN  ɹɹ&UIFSFVN  &3$UPLFOT &UIFSFVN্Ͱൃߦ͞Ε  ɹɹɹͨ&3$ͱ͍͏ن֨ͷτʔΫϯ IUUQTXXXXQCMPHDPNDSZQUPDVSSFODJFT XPSEQSFTTBOEXPPDPNNFSDFXFCTJUFT

Ծ૝௨՟ܾࡁͰ΋࠷৽Λߦ͘8PP$PNNFSDF #JUDPJOͷઌਐٕज़-JHIUOJOH/FUXPSLͷܾࡁʹ΋ରԠ ◾8PP$PNNFSDF(BUFXBZ-JHIUOJOH  ɹɹੈքతͳ#JUDPJOελʔτΞοϓ  #MPDLTUSFBN͕ࣾ8PPDPNNFSDFͱซ༻  ɹɹɹ͢Δ(BUFXBZΛΦʔϓϯιʔεͰఏڙ IUUQTHJUIVCDPN&MFNFOUT1SPKFDUXPPDPNNFSDFHBUFXBZMJHIUOJOH

-JHIUOJOH/FUXPSLͷ࣮ళฮܾࡁ ೥݄೔ ౔ ೔ຊͰॳΊͯͷ-JHIUOJOH/FUXPSL࣮ళฮܾࡁ͕ߦΘΕ ͨ !17 ϕϧΪʔϏʔϧμΠχϯάαϯλϧψʔ  ҉߸௨՟ܾࡁͷ੟஍  *$0 *OJUJBM$PJO0⒎FSJOH
Ͱ໊ݹ԰  ɹ͔Β౦ژ੺ࡔʹҠస ࣗ਎͸໨ܸऀͱͳΓɺ5XJUUFSͰ͸େ͖ͳ ൓ڹ  ೔ຊͰ-JHIUOJOH/FUXPSL͕େ͖ͳ  ɹҰาΛ౿Έग़ͨ͠ IUUQTUXJUUFSDPNTIV@LPCTUBUVT

ࢀߟࢿྉɹDMJHIUOJOHΛ"84Ͱߏங

"84Ͱ-JHIUOJOH/FUXPSLϊʔυΛߏங &$Λར༻ ◾ΠϯελϯελΠϓ  ɹɹUTNBMM  UNJDSPͩͱ  ɹɹɹϏϧυ࣌ʹ  ɹɹɹϝϞϦෆ଍  ◾ετϨʔδαΠζ  ɹɹϑϧϊʔυͳΒ 
ɹɹ5FTUOFUͳΒ(#  ɹɹ.BJOFUͳΒ(# ◾".*  ɹɹ6CVOUV  ϒϩοΫνΣʔϯ  ɹɹɹͰΑ͘ར༻͞ΕΔ

#JUDPJO$PSFͱDMJHIUOJOHΠϯετʔϧ #JUDPJOϊʔυ͸$ ͷϦϑΝϨϯε࣮૷ͷ#JUDPJO$PSF CJUDPJOE ΍+BWB࣮૷ ͷCJUDPJOKɺHP࣮૷ͷCUDEͳͲ͕͋Γɺ-JHIUOJOH/FUXPSLϊʔυ΋$ݴޠ࣮૷ ͷDMJHIUOJOH MJHIUOJOHE ɺHPݴޠ࣮૷ͷMOEͳͲ͕͋Δɻ  ࠓճ͸ɺ#JUDPJO$PSF
CJUDPJOE DMJHIUOJOH MJHIUOJOHE Λ঺հ #JUDPJODPSFͷΠϯετʔϧ VCVOUV IUUQTRJJUBDPNUPLVPJUFNTFGEGDGDFC -JHIUOJOH/FUXPSLϊʔυΛ্ཱͪ͛Δํ๏ DMJHIUOJOHฤ IUUQTRJJUBDPNNVUBJUFNTCFDBGFDE

։͚Δϙʔτ ηΩϡϦςΟάϧʔϓΠϯό΢ϯυ  Ͱઃఆ  ◾.BJOOFUͷ৔߹  ɹɹ  ◾5FTUOFUͷ৔߹  ɹɹ  ◾MJHIUOJOH
.BJOOFU 5FTUOFUڞ௨   ɹɹ

"84Ͱཱͯͨϊʔυ΁ͷνϟωϧͷషΓํ ௨ৗɺ*1WύϒϦοΫ*1Λ༻͍Δ͕ɺ"84౳Ϋϥ΢υͰ͸  *1WύϒϦοΫ*1Ͱ͸షΕͳ͍ͷͰɺύϒϦοΫ%/4Λར༻ $ lightning-cli connect 03878c29e98b292d75184e04f8732df71b829e1f027abd881f68ba87f94890f8e2 54.64.156.15:9735 { "code"
: -1, "message" : "Connection establishment: Connection timed out" } vagrant@vagrant:~/lightning$ lightning-cli connect 03878c29e98b292d75184e04f8732df71b829e1f027abd881f68ba87f94890f8e2 ec2-54-64-156-15.ap-nor theast-1.compute.amazonaws.com:9735 { "id": “03878c29e98b292d75184e04f8732df71b829e1f027abd881f68ba87f94890f8e2" } vagrant@vagrant:~/lightning$ lightning-cli fundchannel 03878c29e98b292d75184e04f8732df71b829e1f027abd881f68ba87f94890f8e2 1000000 { “tx": "02000000000101f8fb8fe048fe4dd0d9c2f854777685b4bf8bc68ba18a7e2b6c092a4a26fee2110100000000f fffffff0240420f0000000000220020117ee3b27964d2fec71ec73fa6c3ac4f14f5a23b6d7dd17b0a925c9d421 62c9859bb650300000000160014be090d0aceb6702c948220f84c9cc1a026ce60a302473044022004d5dc06814 fab006d8658c9d4a76669fbab4c3257e6e377e8b44a2502628262022075564b6dd354a3bac745403b0e16fd7b3 ab8f8e303a17acf75165ea92c8a0026012102f530fbd401090d92b1863cf6db3657c323dc482f12a88ff4a5814 7ac0111acf900000000", "txid": "cfd32c38756a5165cba58c01daf2503de7e220c671f41483949ca8be2bb93e8b", "channel_id": “8b3eb92bbea89c948314f471c620e2e73d50f2da018ca5cb65516a75382cd3cf" }

-JHIUOJOH/FUXPSL&YQMPSFS -JHIUOJOH/FUXPSLνϟωϧΛՄࢹԽͨ͠αΠτ 5FTUOFU   IUUQTFYQMPSFSBDJORDP

-JHIUOJOH/FUXPSL&YQMPSFS -JHIUOJOH/FUXPSLνϟωϧΛՄࢹԽͨ͠αΠτ .BJOOFU   IUUQTMONBJOOFUHBCFOXJO ◾03"/(&#&".  ɹɹখᔹ͕.BJOOFUͰཱ͍ͯͯΔϊʔυ ◾5FTUOFUΛ௒͑Δن໛  ɹɹϊʔυ਺ɺνϟωϧ਺ͱ΋ʹ.BJOOFUͷํ͕ଟ਺

#JUDPJOΛࢧ͑Δ"84 #JUDPJOϊʔυΛՔಇͤ͞Δͷʹ"84͸͔ͳΓ࢖ΘΕ͍ͯΔ  ੈքͷϊʔυ&YQMPSFS  IUUQTCJUOPEFTFBSODPNOPEFT R+BQBO

HTLC入門

HTLC入門

Shu Kobuchi

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HTLCೖ໳ 2018/8/26 ΦϑνΣʔϯΞΧσϛʔϋοΫσʔβ খᔹ प Shu Kobuchi

ࣗݾ঺հ খᔹपɹ4IV,PCVDIJɹ!TIV@LPCTIVLPCVDIJ  χοΫωʔϜɿ͜Ϳγϡʔ  ୅໨ϒϩοΫஉɹIUUQTXXXZPVUVCFDPNXBUDI WBU$2B86: ϛεϏοτίΠϯ  ౻ຊਅҥࢯͷΠϯλϏϡʔهࣄ  IUUQTHPPHMKNRL !2 ◾03"/(&#&".

)5-$ೖ໳

)BTIFE5JNF-PDL$POUSBDU தؒऀΛܦ༝͢ΔϚϧνϗοϓૹۚΛ࣮ݱ νϟωϧͷ։ઃ૬ख͕૿͑ΔͱɺPGϚϧνγάѼʹ͢ΔσϙδοτͰ ϩοΫ͞ΕΔ#JUDPJO͕૿͑Δ νϟωϧະ։ઃͷ૬खͱ΋νϟωϧ։ઃࡁΈͷୈࡾऀΛܦ༝ܾͯ͠ࡁ !5 σϙδοτͷ #JUDPJO͕ଟ͍

தؒऀΛ৴༻ͤͣͱ΋ૹۚͰ͖Δ࢓૊Έ͕ඞཁ "MJDF͸$BSPMͱ௚઀νϟωϧΛష͍ͬͯͳ͍͕ɺ#PCΛ௨ͯ͠ૹ͕ۚͰ͖ͦ͏ "MJDF͕#PCʹ$BSPM΁#5$ૹۚ͢ΔΑ͏ʹݴͬͯ΋ɺ#PC͕౪ΉՄೳੑ ͸൱ఆͰ͖ͳ͍ #PC͕৴༻Ͱ͖ͳͯ͘΋ૹۚͰ͖Δ࢓૊Έ͕ඞཁ !6 "MJDF #PC $BSPM

ৄ͘͠͸%SZKBࢯͷࢿྉΛ 5IBEEFVT%SZKB -JHIUOJOH/FUXPSL8IJUFQBQFSஶऀͷҰਓʣ  IUUQTCDKQBSDIJWFTFBTPONBUFSJBMT @-JHIUOJOH@/FUXPSLQEG !7

)5-$ͷ؆қతͳྫ ᶃ4FDSFU3Λ࡞੒͠ɺ4FDSFU)BTI3Λ"MJDFʹ࿈ܞ ᶄ)5-$59"Ͱɺ"MJDF͔Β#PC΁ͷࢧ෷͍Λอূ ᶅ)5-$59#ͱᶆ)5-$59$Ͱ#PC͔Β$BSPM΁ͷૹۚ ᶄ)5-$59"ͱᶇ)5-$59#Ͱ"MJDF͔Β#PC΁ͷૹۚ !8 "MJDF #PC $BSPM 4FDSFU3

தؒऀ͔Βݟͯ࢝఺ɾऴ఺ͷ৴པ͕ͳͯ͘΋࢖͑ΔΑ͏ʹ #JUDPJOͱ4FDSFU3ͷަ׵͚ͩͰ͸ෆे෼ !9 ҆౔ໜږࢯϒϩάʮ%FWFMPQNFOUXJUIQMFBTVSFʯΑΓ IUUQTUFDINFEJBUIJOLIBUFOBCMPHDPNFOUSZ

)5-$͸#1ͰൃҊ #JUDPJONQSPWFNFOU1SPSPTBMʢϏοτίΠϯվળఏҊʣ  #*1Ͱ)5-$͕ൃҊ͞Εͨ  IUUQTHJUIVCDPNCJUDPJOCJQTCMPCNBTUFSCJQNFEJBXJLJ !10

-JHIUOJOH/FUXPSLΛֶͿ্ͰಡΜͰ͓͖͍ͨॻ੶ ࢁ࡚ॏҰ࿠ɾ҆౔ໜږɾాதढ़ଠ࿠ஶ ʰϒϩοΫνΣʔϯɾϓϩά ϥϛϯάԾ૝௨՟ೖ໳ʱߨஊࣾ !12

ࢀߟࢿྉɹ-JHIUOJOH/FUXPSL࣮༻ࣄྫ

-JHIUOJOH/FUXPSLΛ5FTUOFUͰମݧ 4UBS#MPDLT IUUQTTUBSCMPDLTBDJORDP ◾ձܭ͸23ίʔυಡΈऔΓ  ɹɹεϚϗ౳ͰಡΈऔܾͬͯࡁ  ɹɹΦϯνΣʔϯͱ͸ผن֨ͷૹۚํ๏

8PP$PNNFSDFͷԾ૝௨՟ܾࡁ #JUDPJO΍&UIFSFVNΛ͸͡Ίͱ͢Δ༷ʑͳԾ૝௨՟ܾࡁʹରԠ ◾#JUDPJOͱ"MUDPJO ѥछ   ɹɹ#JUDPJO  #JUDPJO$BTI  -JUFDPJO  %BTI  ͳͲ

-JHIUOJOH/FUXPSLͷ࣮ళฮܾࡁ ೥݄೔ ౔ ೔ຊͰॳΊͯͷ-JHIUOJOH/FUXPSL࣮ళฮܾࡁ͕ߦΘΕ ͨ !17 ϕϧΪʔϏʔϧμΠχϯάαϯλϧψʔ  ҉߸௨՟ܾࡁͷ੟஍  $0 OJUJBM$PJO0⒎FSJOH

ࢀߟࢿྉɹDMJHIUOJOHΛ"84Ͱߏங

"84Ͱ-JHIUOJOH/FUXPSLϊʔυΛߏங &$Λར༻ ◾ΠϯελϯελΠϓ  ɹɹUTNBMM  UNJDSPͩͱ  ɹɹɹϏϧυ࣌ʹ  ɹɹɹϝϞϦෆ଍  ◾ετϨʔδαΠζ  ɹɹϑϧϊʔυͳΒ

#JUDPJO$PSFͱDMJHIUOJOHΠϯετʔϧ #JUDPJOϊʔυ͸$ ͷϦϑΝϨϯε࣮૷ͷ#JUDPJO$PSF CJUDPJOE ΍+BWB࣮૷ ͷCJUDPJOKɺHP࣮૷ͷCUDEͳͲ͕͋Γɺ-JHIUOJOH/FUXPSLϊʔυ΋$ݴޠ࣮૷ ͷDMJHIUOJOH MJHIUOJOHE ɺHPݴޠ࣮૷ͷMOEͳͲ͕͋Δɻ  ࠓճ͸ɺ#JUDPJO$PSF

։͚Δϙʔτ ηΩϡϦςΟάϧʔϓΠϯό΢ϯυ  Ͱઃఆ  ◾.BJOOFUͷ৔߹  ɹɹ  ◾5FTUOFUͷ৔߹  ɹɹ  ◾MJHIUOJOH

"84Ͱཱͯͨϊʔυ΁ͷνϟωϧͷషΓํ ௨ৗɺ1WύϒϦοΫ1Λ༻͍Δ͕ɺ"84౳Ϋϥ΢υͰ͸  1WύϒϦοΫ1Ͱ͸షΕͳ͍ͷͰɺύϒϦοΫ%/4Λར༻ $ lightning-cli connect 03878c29e98b292d75184e04f8732df71b829e1f027abd881f68ba87f94890f8e2 54.64.156.15:9735 { "code"

-JHIUOJOH/FUXPSL&YQMPSFS -JHIUOJOH/FUXPSLνϟωϧΛՄࢹԽͨ͠αΠτ 5FTUOFU   IUUQTFYQMPSFSBDJORDP

-JHIUOJOH/FUXPSL&YQMPSFS -JHIUOJOH/FUXPSLνϟωϧΛՄࢹԽͨ͠αΠτ .BJOOFU   IUUQTMONBJOOFUHBCFOXJO ◾03"/(&#&".  ɹɹখᔹ͕.BJOOFUͰཱ͍ͯͯΔϊʔυ ◾5FTUOFUΛ௒͑Δن໛  ɹɹϊʔυ਺ɺνϟωϧ਺ͱ΋ʹ.BJOOFUͷํ͕ଟ਺

#JUDPJOΛࢧ͑Δ"84 #JUDPJOϊʔυΛՔಇͤ͞Δͷʹ"84͸͔ͳΓ࢖ΘΕ͍ͯΔ  ੈքͷϊʔυ&YQMPSFS  IUUQTCJUOPEFTFBSODPNOPEFT R+BQBO

#JUDPJOΛࢧ͑Δ"84 #JUDPJOϊʔυΛՔಇͤ͞Δͷʹ"84͸͔ͳΓ࢖ΘΕ͍ͯΔ  ੈքͷϊʔυ&YQMPSFS  IUUQTCJUOPEFTFBSODPNOPEFT R+BQBO