ハイパーレッジャーとその他の分散台帳技術 / Hyperledger and Other Distributed Ledger Technologies

Transcript

1. Chief Science Officer / ks91@blockchainhub.co.jp — — 2021-03-31 – p.1/47

2. https://speakerdeck.com/ks91 — — 2021-03-31 – p.2/47

3. ( ) SFC ( ) CSO (Chief Science Officer) 1993

   ( ) 2006 ( ) SFC 20 P2P (Peer-to-Peer) ( 2019 9 ) 2011 2018 2019 2019 2020 2020 → ( ) — — 2021-03-31 – p.3/47

4. Linux Foundation Hyperledger R3CEV Corda Facebook/Novi The Diem Blockchain Web3

   Foundatoin Polkadot ( ) — — 2021-03-31 – p.4/47

5. : Kenji Saito, Akimitsu Shiseki, Mitsuyasu Takada, Hiroki Yamamoto, Masaaki

   Saitoh, Hiroaki Ohkawa, Hirofumi Andou, Naotake Miyamoto, Kazuaki Yamakawa, Kiyoshi Kurakawa, Tomohiro Yabushita, Yuji Yamada, Go Masuda, Kazuyuki Masuda, “Requirement Analyses and Evaluations of Blockchain Platforms per Possible Use Cases” https://arxiv.org/abs/2103.03209 ( ) — — 2021-03-31 – p.5/47

6. (Linux Foundation) Fabric (IBM), Sawtooth (Intel), Iroha ( ), Indy

   (Sovrin), Besu (ConsenSys) Corda (R3) The Diem Blockchain (Facebook/Novi) Polkadot (Web3) BBc-1 ( ) DLT — — 2021-03-31 – p.6/47

7. (BP : Blockchain Property ) BP-1 : BP-2 : BP-3

   : ( ) ( ) BP-2 permissionless ( ) permissioned ( ) BP-2’ : — — 2021-03-31 – p.7/47

8. ( ) BP-1 ( ), BP-2 ( ) BBc-1 f

   : → BP-3 ( ) ( ) ( ) ← BP-2 ← BP-3 (?) ( ) ← BP-3 + ← BP-{1,2} — — 2021-03-31 – p.8/47

9. [Lamport 1984][Schneider 1990] (1) (2) (3) (4) ( ) ←

   ↑ permissioned — — 2021-03-31 – p.9/47

10. (n ≥ 3f + 1 ) SMRP (State Machine Replication

    Problem) SMRP-1 ( ) SMRP-2 : = — — 2021-03-31 – p.10/47

11. /DLT ਖ਼౰ੑͷอূ ྫ
    
    6590
    ߏ଄ͱσδλϧॺ໊ ଘࡏੑͷূ໌ ྫ
    
    ࡞ۀূ໌෇͖ϋογϡνΣʔϯ །Ұੑͷ߹ҙ ྫ
    
    φΧϞτɾίϯηϯαε ϧʔϧͷهड़ ྫ
    
    #5$
    ͷҠస ɾ

    
    τϥϯβΫγϣϯͷ಺༰͕վ͟ΜͰ͖ͣɺ ɾ
    ͦͷΞηοτʹؔ͢ΔաڈͷτϥϯβΫγϣϯྻʹরΒͯ͠ໃ६͕ͳ͘ɺ ɾ
    ͔ͭɺਖ਼౰ͳϢʔβʹΑΓ౤ೖ͞Ε͍ͯΔ͜ͱΛอূ͢Δ ɾաڈʹ͋ͬͨτϥϯβΫγϣϯͷূڌΛຣফͰ͖ͣɺ ɾ
    ͔ͭɺաڈʹͳ͔ͬͨτϥϯβΫγϣϯͷূڌΛ፻଄Ͱ͖ͳ͍ ɾໃ६͢Δ;ͨͭͷτϥϯβΫγϣϯ͕౤ೖ͞Εͨ৔߹ɺ ɹ ͍ͣΕ
    ؔ༩͢Δશһ͕ಉ͡ยํΛબΜͰྺ࢙ͷதʹҐஔ͚ͮΔ ɾΞϓϦέʔγϣϯϩδοΫ
    Կ͕ਖ਼͍͠τϥϯβΫγϣϯ͔ΛܾΊΔ BP-1, BP-3, BP-2 ( ) — — 2021-03-31 – p.11/47

12. (Linux Foundation) https://www.hyperledger.org Apache License, Version 2.0 — — 2021-03-31

    – p.12/47

13. / : Proposal → Incubation → Active → Deprecated →

    End of Life — — 2021-03-31 – p.13/47

14. ( https://www.hyperledger.org/about/members ) — — 2021-03-31 – p.14/47

15. Fabric (IBM) IBM Digital Asset Holdings http://hyperledger-fabric.readthedocs.io/en/latest/ State : Active

    — — 2021-03-31 – p.15/47

16. ( ) ( ) — — 2021-03-31 – p.16/47

17. Fabric – (Docker) (chaincode) BFT , , RocksDB CA PKI

    v1.0 ( v2.0) DB CA BFT : Byzantine Fault Tolerance ( ) CA : Certificate Authority ( ) PKI : Public Key Infrastructure ( ) — — 2021-03-31 – p.17/47

18. Sawtooth (Intel) https://github.com/hyperledger/sawtooth-core State : Active — — 2021-03-31 –

    p.18/47

19. ( ) (permissioned) (permissionless) Proof of Elapsed Time (PoET) Proof

    of Work ( ) (Intel ) / Transaction Families — — 2021-03-31 – p.19/47

20. Sawtooth – (transaction families) (PoET ) PBFT (Practical BFT) PoET

    ( ) (transaction families) — — 2021-03-31 – p.20/47

21. Iroha ( ) https://github.com/hyperledger/iroha State : Active — — 2021-03-31

    – p.21/47

22. ( ) DLT : C++ — — 2021-03-31 – p.22/47

23. Iroha – Iroha EVM Sumeragi (BFT) → YAC (FT) +

    , EVM : Ethereum Virtual Machine (Ethereum ) FT : Fault Tolerance ( ) ( ) — — 2021-03-31 – p.23/47

24. Indy (Sovrin) https://github.com/hyperledger/indy-node State : Active ID Hyperledger ID —

    — 2021-03-31 – p.24/47

25. Indy – ID RBFT (Redundant BFT) — — 2021-03-31 –

    p.25/47

26. Besu (ConsenSys) https://besu.hyperledger.org/en/stable/ State : Active Ethereum Quorum — —

    2021-03-31 – p.26/47

27. Besu – EVM GHOST → Casper, PoA, etc. + PoW

    → Casper, PoA : Proof of Authority — — 2021-03-31 – p.27/47

28. Corda (R3) https://github.com/corda/corda — — 2021-03-31 – p.28/47

29. R3 R3CEV 77 (2017 2 ) 3 SBI R3Net( )

    Corda — — 2021-03-31 – p.29/47

30. Corda Corda : BP-{1,2,3} : — — 2021-03-31 – p.30/47

31. ( ) + CAP ( Polkadot (?) ) — —

    2021-03-31 – p.31/47

32. Corda – JVM ( ) (Uniqueness Services) UTXO X.509 PKI

    ( ) JVM : Java Virtual Machine (Java ) X.509 : PKI — — 2021-03-31 – p.32/47

33. The Diem Blockchain Libra https://developers.libra.org/docs/the-libra-blockchain-paper — — 2021-03-31 – p.33/47

34. Libra Move (← ) (BFT) (← ) ( ) 5

    ( ) ↑ ( ) — — 2021-03-31 – p.34/47

35. The Diem Blockchain ( ) → Merkle accumulator (1) publish

    (2) ( ) (3) BFT (4) Ethereum Gas ( DoS ) (5) /VM — — 2021-03-31 – p.35/47

36. The Diem Blockchain – Move (VM ) BFT (= )

    ( 1,000 ) ( publish ) + 5 . . . ← BFT f ( ) 1 (f ) Move (domain-specific) — — 2021-03-31 – p.36/47

37. Polkadot (Web3 Foundation) https://polkadot.network/PolkaDotPaper.pdf — — 2021-03-31 – p.37/47

38. Polkadot – , Substrate BFT ( ) ( ) Bitcoin,

    Ethereum DOT — — 2021-03-31 – p.38/47

39. BBc-1 (Beyond Blockchain One) https://github.com/beyond-blockchain https://beyond-blockchain.org — — 2021-03-31 –

    p.39/47

40. Proof of Work Bitcoin ( ) BBc Trust ( )

    https://github.com/beyond-blockchain/bbc1/blob/develop/docs/BBc-trust.pdf ( ) https://github.com/beyond-blockchain/bbc1/blob/develop/docs/BBc-trust_ja.pdf ( ) Design Paper (white paper) https://github.com/beyond-blockchain/bbc1/blob/develop/docs/BBc-1_design_paper.pdf — — 2021-03-31 – p.40/47

41. BBc-1 — — 2021-03-31 – p.41/47

42. BBc-1 – (Python → bbc1-lib-contracts?) PoCX ( ) ( DAG)

    ( ) UTXO/ (Proof of Context) — — 2021-03-31 – p.42/47

43. (D)LT — — 2021-03-31 – p.43/47

44. ( ) (1) (2) (3) (4) ( ) ⇒ —

    — 2021-03-31 – p.44/47

45. ( ) (by ) (since 1984) ( ) ( )

    ( ) . . . ( ) ⇒ state machine replication — — 2021-03-31 – p.45/47

46. ( ) ( ) ( ) ( ) ( )

    ( ) (by ) ( ) → — — 2021-03-31 – p.46/47

47. — — 2021-03-31 – p.47/47