ウォレットを作る上でのTipsと DEX実装の話
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GuiltyMorishita
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©2018 Ginco, Inc. ΥϨοτΛ࡞Δ্Ͱͷ5JQTͱ %&9࣮ͷ H i - C o n 2 0 1 8 M A S A T A K A M O R I S H I T A 2 0 1 8 / 1 1 / 1 0 / S A T
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A B O U T M Y S E L F ©2018 Ginco, Inc. ࣗݾհ Masataka Morishita @guiltymorishita ৽ଔͰגࣜձࣾΞΧπΩʹೖࣾ͠ Πϯϑϥ։ൃʹैࣄ ݱࡏ(JODPͷ$50ΛΊ ༷ʑͳϒϩοΫνΣʔϯͷݚڀ։ൃΛߦ͏ ࠷ۙϒϩοΫνΣʔϯपΓͷϥΠϒϥϦΛ(PͰॻ͘ͷ͕ࣄ
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©2018 Ginco, Inc. Crypto Wallet ©2018 Ginco, Inc.
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©2018 Ginco, Inc. ·ͱΊͯͻͱͭʹ Bitcoin Bitcoin Cash Litecoin XRP Ethereum Classic Ethereum
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©2018 Ginco, Inc. ϢʔβʔϑϨϯυϦʔͳσβΠϯ
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©2018 Ginco, Inc. ΫϥΠΞϯτܕΥϨοτͷجຊΛ࣮ʹ ߴਫ४ͷηΩϡϦςΟͱ҆શੑ ֤σόΠεͷ தʹͷΈอ ̍ͭͷόοΫΞοϓΩʔͰ ෳͷ௨՟Λཧ ௨৴ͷ҉߸Խͱ ಠࣗͷೝূํࣜ ൿີ伴ͷཧํࣜ ΥϨοτͷߏ ௨৴ํࣜ
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©2018 Ginco, Inc. ಠࣗͷݎ࿚ͳΠϯϑϥ Node શͯͷϒϩοΫνΣʔϯ ϊʔυΛࣗΒཱͯΔ Block Explorer ϒϩοΫΤΫεϓϩʔϥΛ ࣗୡͰ࡞Δ Scalability ߴ͍εέʔϥϏϦςΟΛ ֬อ
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©2018 Ginco, Inc. (JODPͷઆ໌Ҏ্
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©2018 Ginco, Inc. ΥϨοτΛ ࡞Γ͍ͨਓ͚
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©2018 Ginco, Inc. ΞδΣϯμ A G E N D A 5 5 5 5 ΥϨοτͱʁ ॳ৺ऀ͚ ΥϨοτ։ൃͰେͳ͜ͱ ΥϨοτ։ൃͰؾ͍ͮͨ͜ͱ %&9ͷ࣮
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©2018 Ginco, Inc. ΥϨοτͱʁ P A R T 1
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©2018 Ginco, Inc. ΥϨοτͷछྨ
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©2018 Ginco, Inc. ϞόΠϧ ΥϨοτͷछྨ W A L L E T T Y P E औҾॴ Web
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©2018 Ginco, Inc. ϞόΠϧ ΥϨοτͷछྨ W A L L E T T Y P E औҾॴ Web
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©2018 Ginco, Inc. Ͳ͏͍͏͚ํ͔
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©2018 Ginco, Inc. ൿີ伴ͷอଘॴ
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©2018 Ginco, Inc. ൿີ伴ͷอଘॴ K E Y S T O R A G E L O C A T I O N 5 औҾॴɿαʔόʹ伴Λอଘ ϞόΠϧɿΫϥΠΞϯτʹ伴Λอଘ 58FCɿ伴Λอଘ͠ͳ͍ ϝϞϦ্ͰΩϟογϡ
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©2018 Ginco, Inc. ผͷ͚ํ
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©2018 Ginco, Inc. Ϣʔβ͕伴Λཧ ΥϨοτͷछྨ W A L L E T T Y P E ӡӦऀ͕伴Λཧ αʔόܕ ΫϥΠΞϯτܕ
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©2018 Ginco, Inc. ΥϨοτͷछྨ αʔόʔܕΥϨοτ 5 ΫϥΠΞϯτܕΥϨοτ ൿີ伴ΛͰཧ 5 αʔόʔܕΥϨοτ ൿີ伴ΛαʔϏεఏڙऀͷαʔόʔ্Ͱཧ W A L L E T T Y P E
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©2018 Ginco, Inc. ͦΕͧΕͷಛ
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©2018 Ginco, Inc. αʔόܕ S E R V E R T Y P E 5 5 5 5 ΦϑνΣʔϯͱΦϯνΣʔϯͷߦ͖དྷָ͕ ͔ͳΓॊೈʹαʔϏεΛ࡞ΕΔ Ϣʔβ伴ͷཧ͕͍Βͳ͍ͷͰ҆৺ ཧऀ伴ͷཧ͕େม
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©2018 Ginco, Inc. ΫϥΠΞϯτܕ C L I E N T T Y P E 5 5 5 5 Ϣʔβ͕શͯͷݖݶΛ࣋ͯΔ ϒϩοΫνΣʔϯͷྑ͞Λ׆͔ͤΔ ϒϩοΫνΣʔϯͷ༷ʹറΒΕΔ ϢʔβͷϦςϥγʔ͕ࢼ͞ΕΔ
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©2018 Ginco, Inc. ͲͬͪΛબྑ͍͔
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©2018 Ginco, Inc. ࣮ݱ͍ͨ͜͠ͱʹΑΔ
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©2018 Ginco, Inc. ૬ஊ͠ʹདྷ͍ͯͩ͘͞
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©2018 Ginco, Inc. ΥϨοτͷجຊػೳ
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©2018 Ginco, Inc. ΥϨοτͷجຊػೳ B A S I C F U N C T I O N S 5 ߴͷදࣔ ૹۚ 5 ड͚औΓ
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©2018 Ginco, Inc. ΥϨοτ։ൃͰ େͳ͜ͱ P A R T 2
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©2018 Ginco, Inc. Ͳ͏͍͏ػೳΛ࣮͢Δ͔
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©2018 Ginco, Inc. ΥϨοτͷ༻్
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©2018 Ginco, Inc. 5 5 5 Ծ௨՟ཧ %BQQTϒϥβ ։ൃऀ͚ ΥϨοτͷ༻్ P U R P O S E O F W A L L E T 5 ൚༻ .JTU
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©2018 Ginco, Inc. ༻్ผͷػೳ
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©2018 Ginco, Inc. Ծ௨՟ཧʹඞཁͳػೳ N E C E S S A R Y F U N C T I O N S 5 ΞΧϯτ 伴 ͷཧ 5 ཤྺͷදࣔ
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©2018 Ginco, Inc. %BQQTϒϥβʹඞཁͳػೳ N E C E S S A R Y F U N C T I O N S 5 ίϯτϥΫτͷ࣮ߦ 5 Ξηοτͷදࣔ
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©2018 Ginco, Inc. %BQQTϒϥβʹඞཁͳػೳ N E C E S S A R Y F U N C T I O N S 5 τϥϯβΫγϣϯͷৄࡉදࣔ 5 ωοτϫʔΫΓସ͑
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©2018 Ginco, Inc. తʹ߹ΘͤͨػೳΛ ࣮͕ඞཁ
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©2018 Ginco, Inc. ΤϯυϢʔβ͚ Ͱ͖Δ͜ͱ͕গͳ͍΄͏͕ 6*ɾ69తʹྑ͍
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©2018 Ginco, Inc. ։ൃऀ͚ Ͱ͖Δ͜ͱ͕ଟ͍ํ͕ ·ΕΔ
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©2018 Ginco, Inc. %BQQT͚
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©2018 Ginco, Inc. Ͳ͜·ͰରԠͨ͠Βྑ͍͔ Θ͔Βͳ͍
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©2018 Ginco, Inc. %BQQTϢʔβͷ෯ͷ͞ D A P P S U S E R 5 ੲ͔Β*$0ࢀՃͯ͠·͢ 5 ࠷ۙ#JUDPJOങ͍·ͨ͠
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©2018 Ginco, Inc. શһ͕ೲಘ͢Δ ΥϨοτΛ࡞Δͷ͍͠
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©2018 Ginco, Inc. ͳͷͰ
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©2018 Ginco, Inc. ΥϨοτ։ൃऀ ࢥΛڧ࣋ͪ͘·͠ΐ͏
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©2018 Ginco, Inc. ࣗͷࢥͷൣғͰ ϢʔβͷرΛ࠷େԽ
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©2018 Ginco, Inc. ΥϨοτ։ൃͰ ؾ͍ͮͨͱ͜Ζ P A R T 3
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©2018 Ginco, Inc. &UIFSFVNͷଓ
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©2018 Ginco, Inc. &UIFSFVNͷଓ C O N N E C T I O N T O E T H E R E U M 5 5 5 ࣗͷϊʔυ ϓϩόΠμαʔϏε ύϒϦοΫ"1* HFUI
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©2018 Ginco, Inc. ࣗͷϊʔυ O W N N O D E S 5 1SPT ͖ͳΑ͏ʹઃఆͰ͖Δ ϦΫΤετ੍ݶ͕ͳ͍ 5 $POT ಉظ͕ඞཁ ϥϯχϯάίετ͕ߴ͍
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©2018 Ginco, Inc. ϓϩόΠμαʔϏε P R O V I D E R S E R V I C E S 5 1SPT खܰʹ͑Δ ίετ͕͍ 5 $POT ࡉ͔͍ઃఆͰ͖ͳ͍ ṖͷΤϥʔ͕͋Δ
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©2018 Ginco, Inc. ύϒϦοΫ"1* P U B L I C A P I 5 1SPT +40/31$͡Όͳ͍ (FUIʹແ͍"1*͋Δ 5 $POT ϦΫΤετ੍ݶ͕͖͍ͭ جຊతͳ"1*͔͠ͳ͍
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©2018 Ginco, Inc. ࡞Γ͍ͨΥϨοτʹ ߹Θͤͯબ
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©2018 Ginco, Inc. (BT-JNJUʹ͍ͭͯ
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©2018 Ginco, Inc. (BT-JNJUʹ͍ͭͯ A B O U T G A S L I M I T 5 ΤϯδχΞͰ࠷ॳཧղ͕͍͠ 5 ΤϯυϢʔβશ͘Βͳͯ͘ྑ͍
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©2018 Ginco, Inc. ͱΓ͋͑ͣదʹ େ͖͍ΛೖΕΔͱྑ͛͞
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©2018 Ginco, Inc. ͳΜͯ͜ͱ ͍͚ͯ͠·ͤΜ
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©2018 Ginco, Inc. (BT-JNJUʹ͍ͭͯ A B O U T G A S L I M I T 5 Ϣʔβͷࢿ࢈ΛकΔͨΊదͳʹ͢Δ 5 #MPDL(BT-JNJUҎԼʹͳΔΑ͏ʹ͢Δ
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©2018 Ginco, Inc. (BT-JNJUʹ͍ͭͯ A B O U T G A S L I M I T 5 &UIFSͷૹۚΛ͏
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©2018 Ginco, Inc. (BT-JNJUʹ͍ͭͯ A B O U T G A S L I M I T 5 ίϯτϥΫτͷ࣮ߦFTUJNBUF(BT Λ͏ 5 ͋Δఔ͔Δ߹ݻఆͰՄ
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©2018 Ginco, Inc. FTUJNBUF(BT ʹ͍ͭͯ A B O U T E S T I M A T E G A S 5 FTUJNBUF(BT ਖ਼֬ͳͰͳ͍ 5 ίϯτϥΫτʹΑͬͯڊେͳͱͳΔՄೳੑ
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©2018 Ginco, Inc. Ϣʔβ͕ҙਤͤͣ &UIFSΛࣦ͏͔
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©2018 Ginco, Inc. (BT1SJDFʹ͍ͭͯ
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©2018 Ginco, Inc. (BT1SJDFʹ͍ͭͯ A B O U T G A S P R I C E 5 खྉΛܾΊΔͨΊͷ 5 ଟ͚Εଟ͍΄Ͳૣ͘ঝೝ͞ΕΔ
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©2018 Ginco, Inc. ͱΓ͋͑ͣదʹ େ͖͍ΛೖΕΔͱྑ͛͞
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©2018 Ginco, Inc. ͳΜͯ͜ͱ ͍͚ͯ͠·ͤΜ
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©2018 Ginco, Inc. (BT1SJDFʹ͍ͭͯ A B O U T G A S P R I C E 5 ϢʔβʹܾΊͯΒ͏ 5 (BT1SJDF ͷΛ͏
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©2018 Ginco, Inc. &5)(BT4UBUJPO E T H G A S S T A T I O N
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©2018 Ginco, Inc. (BT1SJDFͷ࠷ L O W E S T G A S P R I C E
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©2018 Ginco, Inc. /PODFʹ͍ͭͯ
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©2018 Ginco, Inc. (FU5SBOTBDUJPO$PVOU G E T T R A N S A C T I O N C O U N T 5 ૹ৴ͨ͠ঝೝࡁΈ59ͷΛऔಘͰ͖Δ 5 1FOEJOH59ͷਖ਼֬Ͱͳ͍
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©2018 Ginco, Inc. UFTUOFUͰಈ͍ͯ NBJOOFUͰಈ͔ͳ͍͔
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©2018 Ginco, Inc. ೖྗόϦσʔγϣϯ
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©2018 Ginco, Inc. ೖྗόϦσʔγϣϯ I N P U T V A L I D A T I O N
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©2018 Ginco, Inc. ೖྗόϦσʔγϣϯ I N P U T V A L I D A T I O N 5 खྉº(BT1SJDF 5 ૹۚՄೳֹߴखྉ
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©2018 Ginco, Inc. ೖྗόϦσʔγϣϯ I N P U T V A L I D A T I O N 5 खྉ༻(BTº(BT1SJDF 5 ૹۚՄೳֹߴ
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©2018 Ginco, Inc. શֹೖྗ
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©2018 Ginco, Inc. શֹೖྗ A L L B A L A N C E I N P U T
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©2018 Ginco, Inc. 5 ૹۚՄೳֹΛͦͷ··ೖྗ શֹೖྗ A L L B A L A N C E I N P U T
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©2018 Ginco, Inc. τϥϯβΫγϣϯཤྺ
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©2018 Ginco, Inc. ͳ͍͍͚ͯ͘Ͳ ͋ͬͨΒ͘͢͝ศར
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©2018 Ginco, Inc. ཤྺʹ͍ͭͯ A B O U T H I S T O R Y 5 ૹͬͨ59ΛΩϟογϡ͓ͯ͘͠ 5 &UIFSTDBO͔ΒཤྺΛऔಘ͢Δ
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©2018 Ginco, Inc. ©2018 Ginco, Inc. εϚʔτίϯτϥΫτͰτϥετϨεʹऔҾ͕Ͱ͖Δ ,ZCFS/FUXPSL K Y B E R N E T W O R K 5 &5) 5 &3$ 5 &3$ 5 &3$
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