Blockchain GIG#7 Quorum、Fabric、Cordaの気になる個性

by gakumura

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Quorum Private Transaction • Private Transaction • Public State Private State • Private Transaction Private State Copyright © 2020 Oracle and/or its affiliates 11 App 1 Tx1; Private for A, B Node A Node B Node C Public Private Tx2; Public 2 2 1 2 Public Private 1 2 Public Private 2 1 2

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Hyperledger Fabric Channel • Fabric Channel • Channel Organization • Channel Channel • Channel Copyright © 2020 Oracle and/or its affiliates 12 OrgA Peer OrgB Peer OrgC Peer CH1 L1 L2 L1 L1 L2 L3 L3 CH2 CH3 Org A Org B Org C

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Hyperledger Fabric Private Data • Channel Private Data • Private Data • Organization …Private Data Collection • Private Data Purge Copyright © 2020 Oracle and/or its affiliates 13 OrgA Peer OrgB Peer OrgC Peer Channel 1 L1 PD1 L1 L1 Private Data Collection 1 PD1

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State “Asset” : { “id”:”1234567”, “color”:”red”, “size”:12, “price”:200, “owner”:”Bob” } 3 • State • Bob 50 2 Alice • State • State DB Copyright © 2020 Oracle and/or its affiliates 18 “Asset” : { “id”:”1234567”, “color”:”red”, “size”:12, “price”:200, “owner”:”Bob” } “Asset” : { “id”:”1234567”, “color”:”red”, “size”:12, “price”:200, “owner”:”Bob” }

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• Quorum • Key Value • Fabric • State KVS LevelDB CouchDB • CouchDB JSON Value JSON JSON • Phantom Read • Oracle Blockchain Platform BerkeleyDB Phantom Read JSON SQL • Corda RDB • State Vault RDB State Copyright © 2020 Oracle and/or its affiliates 19

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Copyright © 2020 Oracle and/or its affiliates 27 Quorum Hyperledger Fabric Corda Yes Yes Yes Yes Yes Yes LGPL v3.0 Apache 2.0 Apache 2.0 J.P. Morgan Chase Hyperledger R3 Go Go Java Solidity Go JavaScript Java Java Kotlin https://github.com/jpmorg anchase/quorum/wiki https://hyperledger- fabric.readthedocs.io/ https://docs.corda.net/