ハイパーレッジャーとその他の分散レッジャー技術 / Hyperledger and Other Distributed Ledger Technology

ブロックチェーンハブ主催で開催しているブロックチェーン基盤技術講義『ハイパーレッジャーとその他の分散レッジャー技術』のスライドです。2017年7月26日(水) に使用しました。

Transcript

1. CSO / SFC ks91@blockchainhub.co.jp — — 2017-07-26 – p.1/39
2. ( ) SFC ( ) CSO (Chief Science Officer) CEO 1993 M.Eng ( ) 2006 ( ) SFC 16 P2P 2011 → ( ) — — 2017-07-26 – p.2/39
3. Linux Foundation Hyperledger R3CEV Corda IoT IOTA Tangle ( ) — — 2017-07-26 – p.3/39
4. 1. DLT 2. (Linux Foundation) 3. Fabric (IBM), Sawtooth (Intel), Iroha ( ) 4. Corda (R3) Tangle (IOTA) 5. DLT — — 2017-07-26 – p.4/39
5. 1. DLT DLT : Distributed Ledger Technology ( ) — — 2017-07-26 – p.5/39
6. Q. ( ) ( ) ( = / = ) — — 2017-07-26 – p.6/39
7. /DLT End-to-End ( ) ( ) — — 2017-07-26 – p.7/39
8. 2. (Linux Foundation) https://www.hyperledger.org Apache License, Version 2.0 — — 2017-07-26 – p.8/39
9. / : Proposal → Incubation → Active → Deprecated → End of Life — — 2017-07-26 – p.9/39
10. ( https://www.hyperledger.org/about/members ) — — 2017-07-26 – p.10/39
11. ( ) ( ) ( ) IoT / / ( ) — — 2017-07-26 – p.11/39
12. ( = ) ( ) ( ) ↑ — — 2017-07-26 – p.12/39
13. 3. 3-1. Fabric (IBM) 3-2. Sawtooth (Intel) 3-3. Iroha ( ) 3-4. Burrow (Monax) 3-5. Indy — — 2017-07-26 – p.13/39
14. 3-1. Fabric (IBM) IBM Digital Asset Holdings http://hyperledger-fabric.readthedocs.io/en/latest/ State : Active — — 2017-07-26 – p.14/39
15. ( ) ( ) — — 2017-07-26 – p.15/39
16. — — 2017-07-26 – p.16/39
17. (Docker) (chaincode) PBFT (Practical BFT) RocksDB CA PKI v1.0 DB CA BFT : Byzantine Fault Tolerance ( ) CA : Certificate Authority ( ) PKI : Public Key Infrastructure ( ) — — 2017-07-26 – p.17/39
18. ( ) ← CA — — 2017-07-26 – p.18/39
19. 3-2. Sawtooth (Intel) https://github.com/hyperledger/sawtooth-core State : Active — — 2017-07-26 – p.19/39
20. ( ) (permissioned) (permissionless) Proof of Elapsed Time (PoET) Proof of Work ( ) (Intel ) / Transaction Families — — 2017-07-26 – p.20/39
21. (transaction families) (PoET ) PoET ( ) (transaction families) — — 2017-07-26 – p.21/39
22. 3-3. Iroha ( ) https://github.com/hyperledger/iroha State : Active — — 2017-07-26 – p.22/39
23. ( ) DLT : C++ Sumeragi Whitepaper : https://github.com/hyperledger/iroha/blob/master/docs/iroha_whitepaper.md — — 2017-07-26 – p.23/39
24. JVM (chaincode) Sumeragi (BFT) JVM : Java Virtual Machine (Java ) — — 2017-07-26 – p.24/39
25. Merkle Tree ( ) Digest = double SHA-256 value Existence of a TX can be verified if a relevant subtree is provided — — 2017-07-26 – p.25/39
26. 4. Corda (R3) Tangle (IOTA) — — 2017-07-26 – p.26/39
27. 4-1. Corda (R3) R3 https://github.com/corda/corda — — 2017-07-26 – p.27/39
28. R3 R3CEV 77 (2017 2 ) 3 SBI , R3Net( ) Corda — — 2017-07-26 – p.28/39
29. Corda Corda : : — — 2017-07-26 – p.29/39
30. ( ) + CAP ( DLT ) — — 2017-07-26 – p.30/39
31. CAP ( ) Consistency ( ) Availability ( ) Partition tolerance ( ) ⇒ 3 C Eventual consistency ( ) . . . — — 2017-07-26 – p.31/39
32. JVM ( ) (Uniqueness Services) UTXO X.509 PKI ( ) UTXO : Unspent TX (transaction) Output ( ) X.509 : PKI — — 2017-07-26 – p.32/39
33. 4-2. Tangle (IOTA) IoT IOTA https://iota.readme.io — — 2017-07-26 – p.33/39
34. IoT TX TX (DAG) TX Tangle — — 2017-07-26 – p.34/39
35. IoT (IOTA) DAG ( ) DAG — — 2017-07-26 – p.35/39
36. 5. DLT DLT — — 2017-07-26 – p.36/39
37. ( ) (by ) (since 1984) ( ) ( ) ( ) . . . ( ) ⇒ . . . — — 2017-07-26 – p.37/39
38. ( ) ( ) ( ) ( ) ( ) ( ) (by ) ⇒ DLT — — 2017-07-26 – p.38/39
39. — — 2017-07-26 – p.39/39