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
4.1k
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
1.7k
Performance Optimization on Google AppEngine
timakin
5
6.4k
testcache.pdf
timakin
1
160
How Go cache
timakin
1
97
How Go cache tests
timakin
1
3.2k
Other Decks in Technology
See All in Technology
Geospatialの世界最前線を探る [2025年版]
dayjournal
3
450
Sidekiq その前に:Webアプリケーションにおける非同期ジョブ設計原則
morihirok
17
6.7k
PythonとLLMで挑む、 4コマ漫画の構造化データ化
esuji5
1
120
履歴 on Rails: Bitemporal Data Modelで実現する履歴管理/history-on-rails-with-bitemporal-data-model
hypermkt
0
1.9k
成長自己責任時代のあるきかた/How to navigate the era of personal responsibility for growth
kwappa
3
150
#普通の文系サラリーマンチャレンジ 自分でアプリ開発と電子工作を続けたら人生が変わった
tatsuya1970
0
880
RailsのPostgreSQL 18対応
yahonda
0
1.3k
OpenAI gpt-oss ファインチューニング入門
kmotohas
2
760
stupid jj tricks
indirect
0
7.7k
“2件同時配達”の開発舞台裏 〜出前館PMが挑んだダブルピック実現に向けた体験設計〜
demaecan
0
170
いま注目しているデータエンジニアリングの論点
ikkimiyazaki
0
550
GA technologiesでのAI-Readyの取り組み@DataOps Night
yuto16
0
250
Featured
See All Featured
The Illustrated Children's Guide to Kubernetes
chrisshort
48
51k
How to train your dragon (web standard)
notwaldorf
96
6.2k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
36
2.5k
How GitHub (no longer) Works
holman
315
140k
Thoughts on Productivity
jonyablonski
70
4.8k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
8
950
GraphQLの誤解/rethinking-graphql
sonatard
72
11k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
Scaling GitHub
holman
463
140k
Building an army of robots
kneath
306
46k
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