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これだけはおさえておきたい コントラクトウォレット一問一答
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m0t0k1ch1
April 15, 2022
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これだけはおさえておきたい コントラクトウォレット一問一答
m0t0k1ch1
April 15, 2022
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Transcript
ίϯτϥΫτΥϨοτ ҰҰ m0t0k1ch1.eth 2022.04.15 EtherTurbo meetup ͜Ε͚͓͓͖͍ͩ͑ͯͨ͞
ࣗݾհ ॴଐɾ৬ 4*7*3"*ODࣥߦһ݉ΤϯδχΞ औΓΜͰ͍Δ͜ͱ VO8BMMFUͱ͍͏ίϯτϥΫτΥϨοτͷઃܭɾ։ൃ ͖ͳ/'5 )BTINBTLTɺ$ZCFS#SPLFST झຯ γʔγϟɺετϦʔτμϯεɺ%5.ɺ-P3 m0t0k1ch1.eth
ίϯτϥΫτΥϨοτͱʁ 2
" ٛʹ ίΞػೳ͕εϚʔτίϯτϥΫτͰ ࣮͞ΕͨΥϨοτ ڱٛʹ ্هͷεϚʔτίϯτϥΫτ෦
ίϯτϥΫτΥϨοτͷΠϝʔδ Ethereum ڱٛ ٛ
ίϯτϥΫτΥϨοτͬͯ ۩ମతʹԿΛͯ͠Δͷʁ 2
" ϝλτϥϯβΫγϣϯ ʢNFUBUYʣ
NFUBUYͷΠϝʔδ Ethereum wallet contract relayer EOA other contract tx tx
tx
NFUBUYͷ࣮ྫ ref. https://github.com/argentlabs/argent-contracts/blob/develop/contracts/modules/RelayerManager.sol Ethereum wallet contract relayer EOA other contract
tx tx tx
NFUBUYͷ࣮ྫ ref. https://github.com/argentlabs/argent-contracts/blob/develop/contracts/modules/RelayerManager.sol Ethereum wallet contract relayer EOA other contract
tx tx tx
ίϯτϥΫτΥϨοτͷڧΈʁ 2
" ηΩϡϦςΟͱϢʔβϏϦςΟΛ ཱ྆Ͱ͖Δ͜ͱ ۩ମతʹ ίϯτϥΫτ͔ͩΒ࣮ͦ͜ݱՄೳͳ ηΩϡϦςΟػߏͱखྉ͍ػߏ
&0"ΥϨοτͷऑΈ w &0"ʹରԠ͢Δൿີ伴Λฆࣦͨ͠Βɺͦ͜Ͱࢼ߹ऴྃ w ࣗྗͰUYखྉͷ҉߸ࢿ࢈Λௐୡ͢Δඞཁ͕͋Δ w ʜ
දతͳͷɺ7JUBMJLCFUUFSͱݴ͏ͯΔιʔγϟϧϦΧόϦʔ ref. https://vitalik.ca/general/2021/01/11/recovery.html ίϯτϥΫτͳΒͰͷηΩϡϦςΟػߏ ൿີ伴ͷฆࣦʹ ରԠՄೳ ʢ౪ͱzಆ͑Δzʣ
ίϯτϥΫτͳΒͰͷखྉ͍ػߏ Ethereum wallet contract relayer EOA other contract tx tx
tx SFMBZFS&0"͕શͯݞΘΓ
ίϯτϥΫτͳΒͰͷखྉ͍ػߏ Ethereum wallet contract relayer EOA other contract tx tx
tx ERC20 contract SFMBZFS&0"͕͍ͨ͠ޙ XBMMFUDPOUSBDU͔Βҙͷ&3$Λऩ tx transfer (<relayerEOA>, …)
ίϯτϥΫτΥϨοτͬͯ ීٴ͢Δͷʁ 2
" ࡢఏҊ͞Εͨ&*1ͷ͓͔͛Ͱ ීٴ͕ݱ࣮ຯΛଳͼ࢝Ί͖ͯ·ͨ͠
""ͷྺ࢙ 2017.02.10 EIP86 Abstraction of transaction origin and signature
ref. https://eips.ethereum.org/EIPS/eip-86 2020.09.04 EIP2938 Account Abstraction ref. https://eips.ethereum.org/EIPS/eip-2938 2021.09.29 EIP4337 Account Abstraction via Entry Point Contract speci fi cation ref. https://eips.ethereum.org/EIPS/eip-4337 1st author
͕ࣗࡢͷ&UIFSFVN"EWFOU$BMFOEBSͰॻ͍ͨهࣄΛ͝ཡ͍ͩ͘͞ ref. https://zenn.dev/sivira/articles/d041f1ac44ca1e ͬͱৄ͘͠Γ͍ͨํ
3PMMVQͷલͰ͋Δ1MBTNBͷఏҊ ref. https://plasma.io/plasma.pdf ͪͳΈʹ
ίϯτϥΫτΥϨοτͷ େ͖ͳ՝Λͭڍ͛ΔͳΒʁ 2
" ίϯτϥΫτͷσϓϩΠίετ
σϓϩΠίετྫ ʹσϓϩΠ͞Εͨ ࣗͷ"SHFOUʢQSPYZDPOUSBDUʣͷ߹ɺ ॾʑͷॳظԽॲཧʹཁͨ͠HBTࠐΈͰ HBT HBTQSJDFΛ(XFJͱ͢Δͱɺ&5) ref. https://etherscan.io/tx/ 0xd2ce8785f312723b9869ac2e59f44fd1bc40757c195fb273c4dc6abf49b75ee7
+1:ࢉͨ͠σϓϩΠίετൺֱ Ծʹ HBTͷ߹ɺ HBTQSJDFΛ(XFJͱ͢Δͱɺ&5)㲈 +1: HBTQSJDFΛ(XFJͱ͢Δͱɺ."5*$㲈+1: HBTQSJDFΛ(XFJͱ͢Δͱɺ&5)㲈+1: πϥ͍ ͍҆ο ·͋ڐ༰ൣғ
͓·͚
ฐࣾͷऔΓΈ ϚεΞμϓγϣϯΛҙࣝ /'5͢ΒΒͳ͍ҰൠϢʔβʔͰѻ͑Δ ϊϯΧετσΟΞϧ8FCΥϨοτ ৽͍ٕ͠ज़Λ׆༻ -ରԠʢ࠷ۙ"SCJUSVNʹରԠ͠·ͨ͠ʣ /'5ͷͨΊͷίϯτϥΫτΥϨοτͰ lԼࠀ্zΛ͕Μͬͯ·͢ʂ
$POUBDU ίϯτϥΫτΥϨοτʹڵຯ͕͋ΔΤϯδχΞ͞Μͪ͜Β https://meety.net/matches/FHQNZgHvWgSh VO8BMMFUͷ׆༻ʹڵຯ͕͋Δاۀ༷ͪ͜Β https://www.about.unwallet.world