Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
HyperLedger Today
Search
Seiji Takahashi
October 03, 2017
Technology
0
5.7k
HyperLedger Today
blockchain.tokyo#1の発表資料 by @__timakin__
Seiji Takahashi
October 03, 2017
Tweet
Share
More Decks by Seiji Takahashi
See All by Seiji Takahashi
Go Backends for frontends with GraphQL and gRPC
timakin
6
4k
Design Pattern for Image and Text Composition in Go
timakin
5
6.7k
Golang API Testing the HARD way
timakin
13
6.7k
Head First Golang Image Package
timakin
2
10k
React Native Beyond Prototype
timakin
2
1.6k
Performance Optimization on Google AppEngine
timakin
5
6.3k
testcache.pdf
timakin
1
150
How Go cache
timakin
1
90
How Go cache tests
timakin
1
3.1k
Other Decks in Technology
See All in Technology
Amplify Gen2から知るAWS CDK Toolkit Libraryの使い方/How to use the AWS CDK Toolkit Library as known from Amplify Gen2
fossamagna
0
170
american aa airlines®️ USA Contact Numbers: Complete 2025 Support Guide
aaguide
0
480
Rethinking Incident Response: Context-Aware AI in Practice
rrreeeyyy
1
240
DatabricksにOLTPデータベース『Lakebase』がやってきた!
inoutk
0
150
60以上のプロダクトを持つ組織における開発者体験向上への取り組み - チームAPIとBackstageで構築する組織の可視化基盤 - / sre next 2025 Efforts to Improve Developer Experience in an Organization with Over 60 Products
vtryo
2
640
全部AI、全員Cursor、ドキュメント駆動開発 〜DevinやGeminiも添えて〜
rinchsan
2
760
SEQUENCE object comparison - db tech showcase 2025 LT2
nori_shinoda
0
270
オフィスビルを監視しよう:フィジカル×デジタルにまたがるSLI/SLO設計と運用の難しさ / Monitoring Office Buildings: The Challenge of Physical-Digital SLI/SLO Design & Operation
bitkey
1
300
IPA&AWSダブル全冠が明かす、人生を変えた勉強法のすべて
iwamot
PRO
2
220
Enhancing SaaS Product Reliability and Release Velocity through Optimized Testing Approach
ropqa
1
250
20250708オープンエンドな探索と知識発見
sakana_ai
PRO
4
660
第64回コンピュータビジョン勉強会「The PanAf-FGBG Dataset: Understanding the Impact of Backgrounds in Wildlife Behaviour Recognition」
x_ttyszk
0
140
Featured
See All Featured
Gamification - CAS2011
davidbonilla
81
5.4k
Typedesign – Prime Four
hannesfritz
42
2.7k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
281
13k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
32
2.4k
Rebuilding a faster, lazier Slack
samanthasiow
83
9.1k
Navigating Team Friction
lara
187
15k
Code Review Best Practice
trishagee
69
19k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Scaling GitHub
holman
460
140k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
740
4 Signs Your Business is Dying
shpigford
184
22k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
357
30k
Transcript
HYPER LEDGER TODAY @__timakin__ / blockchain.tokyo#1
ࣗݾհ • Seiji Takahashi • Github: timakin / Twitter: @__timakin__
• Gunosy Inc. Business Development Team • Go / Swift • Just a little bit contributed to Go.
https://www.slideshare.net/seijitakahashi92/concept-of- blockchain-decentralized-application
ΞδΣϯμ • HyperLedgerͱʁ • HyperLedgerͷϓϩδΣΫτҰཡ • HyperLedgerͷ։ൃʹؔͯ͠
HyperLedgerͱʁ
HyperLedgerͱʁ • ۚ༥Λத৺ͱͨ͠൚ۀछͰͷϒϩοΫνΣʔϯ ٕज़ͷߴԽΛਐΊΔڞಉϓϩδΣΫτ • Supported by The Linux Foundation
• ίϯιʔγΞϜܕͷϒϩοΫνΣʔϯ • IBMɺIntelɺJ.P.MorganɺMUFGɺNECɺΞΫ ηϯνϡΞɺ࢜௨ɺཱetc…େاۀ͕ϝϯ όʔͱͳ͍ͬͯΔ
HyperLedgerͱʁ ref: http://gaiax-blockchain.com/hyperledger-project
HyperLedgerͷߏཁૉ ref: https://docs.google.com/document/d/1Z4M_qwILLRehPbVRUsJ3OF8Iir-gqS-ZYe7W-LE9gnE/pub
HyperLedger Projects Fabric PBFTʹΑΔߴͳ߹ҙܗ খϊʔυͰՄೳͳӡ༻ ϝϯόʔγοϓ੍ʹΑΔԾ௨՟ͷෆࡏ ։ൃසߴ͘ɺ࣮ূ࣮ݧࡁΈ*ɻGoɻ * http://www.jpx.co.jp/corporate/research-study/working-paper/tvdivq0000008q5y-att/ JPX_working_paper_No15.pdf
HyperLedger Fabric Network ref: https://www.ibm.com/developerworks/jp/cloud/library/j_cl-blockchain-basics-bluemix/
PBFT (Practical Byzantine Fault Tolelance) ref: https://www.ibm.com/developerworks/jp/cloud/library/j_cl-blockchain-basics-bluemix/
ChainCode • εϚʔτίϯτϥΫτɻGo͔JavaͰΠϯλʔ ϑΣʔεΛ࣮͢ΕϒϩοΫνΣʔϯ্Ͱ࣮ߦ ՄೳͳϓϩάϥϜɻ
ChainCode
World State • ChainCode͔ΒR/WͰ͖ΔKVSɻJSONจࣈྻΛ ֨ೲͰ͖Δɻ • ϑΝΠϧΛอଘ͍ͨ͠߹όΠφϦจࣈྻʹ มͯ͠ɺChainCode্͔Βࢀর͢Δ͜ͱʹͳ Δɻ
shim.ChaincodeStubInterface • chaincodeͰWorldStateɺLedgerɺೝূใͳ ͲʹΞΫηε͢ΔAPI • Init, Invokeͷ྆ํͰୈҰҾʹͬͯ͘Δɻ • Get/Put/Delete StateͰWorld
StateʹΞΫηε • shim.Success, shim.ErrorͰres payload writer͕ ϥοϓ͞Ε͍ͯΔɻʢΤϥʔίʔυ200, 400, 500ͷΈʣ
HyperLedger Projects Iroha ຊͷιϥϛπגࣜձࣾ։ൃओಋͷϒϩοΫνΣʔϯɻ Ҭ௨՟ɺֶ௨՟ͳͲʹ࣮༻͞ΕͯΔɻ ϞόΠϧSDKɺσδλϧΞηοτൃߦʹॏΛஔ͍ͯ ͍Δɻ Fabricͱ߹ҙܗΞϧΰϦζϜ͕एׯҧ͏ɻ C++ɻ
Sumeragi ref: https://github.com/hyperledger/iroha/blob/master/docs/iroha_whitepaper.md As 2f+1 signatures are needed to confirm
a transaction, under the normal case only 2f+1 peers are involved in transaction validation; the remaining peers only join the validation when faults are exhibited in peers.
HyperLedger Projects Indy ϒϩοΫνΣʔϯ্ͰσδλϧIDΛཧ͢Δɻ BitcoinEthereumͱҟͳΓɺIDཧͷͨΊͷಠࣗ ͷாΛ࣋ͭɻ IDͷόϦσʔγϣϯɺHyperLedgerՃໍલʹ σδλϧIDͰ͋ΔSovrin IDΛ͍ͯͨ͠ɺ Sovrin
FoundationͷόϦσʔλʔϊʔυ (Permissioned)্ͰߦΘΕΔɻ
Indy Access Control IDͷࢀরࣗମPublicʹͰ͖Δ͕ɺόϦσʔγϣϯೝՄΛड͚ͨ όϦσʔλʔϊʔυ͚͕ͩͰ͖Δɻ
RBFT (Redundunt Byzantine Fault Tolelance) ref: https://pakupaku.me/plaublin/rbft/5000a297.pdf
HyperLedgerͷ։ൃʹ͍ͭͯ Development ϏοΫϦυοΩϦMakefileͰdockerͷίϯςφϏϧυ͕Ӆṭ ͞ΕͯΔɻ kubernetesʹҠߦ͠Α͏ͱ͍͏ٞIssueʹ্͕ͬͯΔ Fablic, Iroha, Sawtooth, IndyͲΕίϛοτࣗମ׆ൃʹߦ ΘΕ͍ͯΔɻ
HyperLedgerͷ։ൃʹؔͯ͠ ίϛϡχςΟ https://chat.hyperledger.org͔ϝʔϦϯάϦετͰ֤ϓϩ δΣΫτͷ࣭ɾਐḿ֬ೝ͕ߦΘΕ͍ͯΔɻ JIRAͰνέοτͬͯλεΫཧ͞Ε͓ͯΓɺਐḿঢ়گ͕ެ ։͞Ε͍ͯΔɻ https://jira.hyperledger.org/secure/Dashboard.jspa? selectPageId=10104 https://wiki.hyperledger.org/
HyperLedgerͷ։ൃʹؔͯ͠ https://wiki.hyperledger.org/
HyperLedgerͷ։ൃʹ͍ͭͯ Composer Development framework/tools for building Blockchain business networks
HyperLedgerͷ։ൃʹ͍ͭͯ Composer Web UIͰϒϩοΫνΣʔϯ(Fabric)্ʹͤΔΞϓϦ͕࡞ΕΔɻ ҎԼ4ͭͷߏཁૉͰΓཱͭɻ Model: τϥϯβΫγϣϯͰѻ͏ΤϯςΟςΟ Access Control: Read/Writeݖݶͷઃఆ
Script: νΣʔϯ্Ͱ࣮ߦ͞ΕΔεΫϦϓτɻJSɻ Query: εΫϦϓτ෦ͰݺΔ Modelఆٛʹج͍ͮͯREST APIΛߏஙͨ͠ΓϢχοτςετՄೳ
·ͱΊ • ίϯιʔγΞϜܕϒϩοΫνΣʔϯ࣮ͷ HyperLedger֤छϓϩδΣΫτ͕׆ൃʹ ։ൃ͞Εͯ·͢ɻ • ύϑΥʔϚϯε࣮ূ࣮ݧ͕͞Ε͓ͯΓɺ ۚ༥ʹ͓͍࣮ͯ༻ੑΛײ͡Δɻ • Fabric
+ Composerͷ։ൃڥ͕͙͢৮ΕΔͷ ͰɺؾʹͳΔਓࢼͯ͠Έ͍ͯͩ͘͞ɻ