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blockchain workshop - blockchain and oabcs - solutions
2.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. |Copyright © 2018, Oracle and/or its affiliates. All rights reserved. Blockchain and the Oracle Autonomous Blockchain Cloud Service October 2018 Juarez Barbosa Junior Principal Developer Advocate @juarezjunior
3.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.
4.
Copyright © 2017,
Oracle and/or its affiliates. All rights reserved. 4 oclchain - Buzzwords You Might Hear • Distributed Ledger • Smart Contract • Nodes • Immutable • Non-repudiation • Ethereum • Corda • Hyperledger • Decentralized • Consensus
5.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. |Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Terms to Know (1/4) • Ledger – File or linked set of files which contains initial information (a contract, a business request, number of Bitcoins) AS WELL AS all changes to that information (text modifications, approvals of a business workflow, transfer of ownership,). Thus you can trace start and arrive at current state of the world by looking at all changes to that starting state. The Ledger is physically stored in multiple locations. The Ledger consists of a set of virtual linked Blocks all recorded within the Ledger file • Transaction – Any change to the current state of the world as documented in the Blockchain (a wording change in a document, an approval in a business workflow, transfer of a Bitcoin to a different owner)
6.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. |Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Terms to Know (2/4) • Block – Several transactions are grouped into a block. Once enough transactions have been grouped, the block is „locked“ and encrypted, and is linked to previous blocks. Terribly complicated, but the key purpose is to make sure that ANY change to the chain of Blocks and their content is immediatly recognized. You can read, but not modify, the blocks. You an add a new transaction if you want to change anything • Client – The software or app used to create a new transaction in a blockchain. For Bitcoin, your digital wallet
7.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. |Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Terms to Know (3/4) • Peer – The server or IT system on which a complete Ledger is stored. All Peers have the same Ledger file. All Peers will follow complicated procedures to ensure the completeness and accuracy of the Blockchain, and will update the Ledger whenever a new Transaction needs to be recorded. A Blockchain becomes safer the more Peers are used. • Consensus – When a new Transaction is created, the Peers will review that Transaction. If they agree (using complicated software processes) that the Transaction is valid, Consensus has been reached and the Transaction will be recorded in the Blockchain
8.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. |Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Terms to Know (4/4) • Smart Contracts – If the Blockchain technology being used support this, a powerful new tool. You can encode a specific set of conditions which will be tested. Conditions from outside the Blockchain will be monitored and provided by so-called Oracles. Once the Conditions are satisfied, the Blockchain will automatically transact and document a specific business outcome. Smart contracts eliminate the middleman, such as a legal firm, as payment will happen based on certain milestones being met. By its very nature, the smart contract is easily enforceable electronically, creating a powerful escrow by taking it out of the control of a single party. Since no human controls the contract or data, more trustworthy.
9.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. 9 The Promise of Blockchain "The technology most likely to change the next decade of business is not the social web, big data, the cloud, robotics, or even artificial intelligence. It’s the blockchain...“ —Harvard Business Review "The Impact of Blockchain Goes Beyond Financial Services," May 2016
10.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. 10 The Promise of Blockchain "We are in the process of developing a new operating system for the planet.” — Jeremy Wilson Vice Chairman of Corporate Banking Barclay’s Bank Blockchain for Finance conference, October 2017
11.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. 11Copyright © 2018, Oracle and/or its affiliates. All rights reserved. 11 • System for maintaining distributed ledgers in a peer-to-peer network • Allows multiple parties that may not fully trust one another to do business securely • Reduces need for third-party intermediaries • Near real-time and unalterable records replicated among all participants What is Blockchain
12.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | Blockchain is an alternate computing model that uses distributed and decentralized computing networks to enable business processes that potentially offer greater levels of security and lower costs than traditional methods. Oracle introduced a unique PaaS offering that will allow companies to develop new services to open new revenue streams – while allowing extenstion of existing IT architecture through expansion into the Cloud and to Partner businesses.
13.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | • Many business processes are based on trustworthy list of transactions • Or on trustworthy view of the world • A good process needs to trust the data: – Trust that all transaction data available to all members of process – Trust that all transactions are legitimate – Trust that records cannot be tampered with – Trust that all transactions are recorded in the correct sequence • Blockchain / Distributed Ledger technology enables efficient processes where data needs to be available in several locations and you need to be able to trust that data at all locations
14.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | How is Blockchain Different from a Secure Database/Cluster • Data Shared openly across trust boundaries – No reconciliation process required • Data Replication is a shared responsibility (many nodes) – No Single point of failure • Multiple writers – built in redundancy and fault tolerance – Faster updates, in near real-time. Less waiting. More reliable • History stored by all nodes, as well as current state – Agreement across network by default • State is secured as a function of history – Extremely difficult to tamper
15.
Copyright © 2017,
Oracle and/or its affiliates. All rights reserved. | Blockchain is decentralized in nature Traditional Database When the central organization fails, the whole network can be become inaccessible Blockchain All data is connected and controlled by a centralized organization. • Limited access by one or more person to same set of data • Bottlenecks can occur with high traffic • Highly dependent of network connectivity Data is directly shared across boundaries of trust, without requiring a centralized intermediary or complex data transfer and reconciliation processes • Datastore can be directly shared by multiple organizations • Every node in a blockchain independently verifies and processes every transaction Replicated data controlled by multiple organizations • No single point of failure • No single point of control (no single SYSDBA) or potential for compromise
16.
Copyright © 2017,
Oracle and/or its affiliates. All rights reserved. Why is Blockchain Important? It Cryptographically Addresses the Problem of Shared Trust How can entities that don’t trust each other transact? Current approaches: – Trusted intermediary, e.g.: Visa/MC, SWIFT, DTCC, EuroClear Issues: cost, latency, single-point-of-failure Blockchain can remove the need for intermediary and replace it with cryptographically secure protocols – Separate records stored by all the different entities Issues: reconciliation costly and error prone, does not scale, delayed settlement Blockchain’s distributed ledger is a single source of truth – no reconciliation needed
17.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. 17 Four Key Properties of Blockchains • Shared & Transparent Data Access • Immutable/Tamper-evident Ledger • Validated/Non-Repudiable Transactions • Confidential Records and Transactions Copyright © 2018, Oracle and/or its affiliates. All rights reserved. 17
18.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | Eliminating intermediaries means reduced transaction costs and near real-time transaction execution Increased confidence in the information and reduced fraud opportunities Increased adutiability and trust Automated business processes in a trusted way. Represent any asset digitally Eliminates manual efforts and delays due to reconciliation needs since data consistency is a key attribute of the distributed ledger Blockchain Technology Disruptive Characteristics / Benefits Decentralized, peer-to-peer network No central, controlling authority Distributed Ledger All participants maintain a copy of the ledger Immutable transaction history Impossible to make changes to existing transactions in a blockchain without detection Transparent Transactions on a blockchain are visible to the authorized participants Smart Contracts Business logic deployed on a blockchain and shared and validated by participants
19.
Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | Two Key Types of Blockchain PermissionedPublic (“Permissionless”) • Anyone can join the network and have a copy of the ledger • This involves computer resource intensive processes to protect the Blockchain incl. mining • Additional mechanisms to protect network from overload if smart contracts used • Typically B-2-C, C-2-C (eg. Bitcoin, Ethereum) • Closed ecosystem: members are invitation-only • Less intrinsic protection needed, thus greater scalability (protection through firewalls, identity management, defined smart contracts) • Typically B-2-B (eg. Hyperledger/Oracle)
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Oracle and/or its affiliates. All rights reserved. | Permissioned/Consortium Permissioned/Private Public Access to Network Members invited to enroll One entity controls all nodes Open Access, Permissionless Validators Pre-authorized validators in R/W or R/O mode Pre-authorized validators in R/W or R/O mode Anonymous fully decentralized validation Blockchain Technologies Hyperledger, Corda Hyperledger, Corda Bitcoin, Ethereum Consensus Transactions throughput 100’s -1000’s/sec 100’s -1000’s/sec 7-15/sec Types of Blockchains Validator Node Read Only Node
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Oracle and/or its affiliates. All rights reserved. 22Copyright © 2018, Oracle and/or its affiliates. All rights reserved. 22 • It is not the same as Bitcoin • It is not just a database • It is not always anonymous • It won’t solve all your problems! What Blockchain is not
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Oracle and/or its affiliates. All rights reserved. 23 What You Can Use Blockchain For? Enable distributed, autonomous marketplaces Securely maintain and share decentralized private records Reduce friction in business transactions and reconciliations Track the provenance of products and materials Single source of Truth Trusted transactions Near-real time data sharing Immutable ledger store
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Oracle and/or its affiliates. All rights reserved. | Where Can You Apply Blockchain? • Blockchain is not a solution to all problems! • A few relevant questions to help determine blockchain applicability – Is my business process pre-dominantly cross-departmental/cross-organizational? – Are there cross-system discrepancies that slow down the business? – Is there less than full trust among transacting parties? – Does it involve intermediaries, possibly charging expensive fees, adding risk or delay? – Does it require periodic offline (batch) reconciliations? – Is there a need to improve traceability or audit trail? – Do we need real time visibility of the current state of multi-party transaction? – Can I improve a multi-party business process by automating certain steps in it?
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Oracle and/or its affiliates. All rights reserved. | Why Is Blockchain Hard to Implement? ENTERPRISE INTEGRATION CHALLENGES • Closed ERPs, complex integrations PRODUCTION READINESS CHALLENGES • Resilience, security, recoverability, global reach CONTINUOUS PLATFORM EVOLUTION • Rapid technology changes • Lack of backward compatibility OPERATIONAL CHALLENGES • Member on-boarding complexity • Supportability, lifecycle management • Limited scalability
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Oracle and/or its affiliates. All rights reserved. | Wider Blockchain Adoption Requires a Platform • Many use cases are emerging – Flexibility and agility to explore without standing up new infrastructure for each case • Ease of provisioning and usage-based consumption – Rapid provisioning: be productive in minutes – Pre-integrated technologies, pre-assembled infrastructure services • Common enterprise-grade requirement can be proven once and re-used – Resilience and HA – Scalability – Supportability, Management, etc. – Security: identity, key management, data at rest encryption • Common operations environment and best practices – Integrated monitoring and troubleshooting capabilities – Easy to read dashboards • Common integrations with Open Banking APIs, ERP, SaaS, etc.
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Oracle and/or its affiliates. All rights reserved. 27 APIs & SDKs to integrate with any applications Pre-assembled, Automatic provisioning Admin console for management, Business UI Build in IdM, Granular access controls An Enterprise Blockchain Cloud Can Help Address These Challenges Production Ready Easy to Integrate Easily Control Access Easy to Monitor and Manage Support < Participants, Support < TRX Performance & Scalability
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Hyperledger Fabric
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Oracle and/or its affiliates. All rights reserved. | Why Hyperledger Fabric? • Hyperledger Fabric – open-source platform for distributed ledger solutions that is intended as a foundation for developing blockchain solutions – Provides a permissioned blockchain model with membership services – No cryptocurrency required! – Offers a modular architecture allowing components, such as consensus and membership services, to be plug-and-play – Programmable – leverages containers to host smart contracts for automating business processes – Focuses on a scalable implementation with confidentiality/privacy provisions – Enables pluggable data store, consensus protocols, and multiple providers of membership services • Open-governed community for enterprise blockchain hosted by The Linux Foundation – Governance model broadly accepted within industry Permissioned, Enterprise, Autonomous, B2B
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Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | What is Hyperledger Fabric? • Fabric – open-source platform for distributed ledger solutions that is intended as a foundation for developing blockchain solutions – Provides a permissioned blockchain model with membership services – Designed with modular architecture allowing components, such as consensus and membership services, to be plug-and-play – Programmable – leverages containers to host smart contracts for automating business processes – Focuses on a scalable implementation by separating smart contract execution from block creation – Provides private channels for conducting confidential/private transactions with invited members – Enables pluggable data store, consensus protocols, and multiple providers of membership services – No cryptocurrency required! Permissioned, Enterprise, Autonomous, B2B
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Oracle and/or its affiliates. All rights reserved. | Why Oracle Picked Hyperledger Fabric as Starting Point? • Open-governed community for enterprise blockchain hosted by The Linux Foundation – Governance model broadly accepted within industry – Oracle as a member has a voice in decisions and participates in technical committees • Fabric project – open-source platform for distributed ledger solutions that is intended as a foundation for developing blockchain solutions – Other projects as part of Hyperledger Foundation ecosystem (Indy, Iroha, Sawtooth) Linux Foundation
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Oracle and/or its affiliates. All rights reserved. | Compatibility with others, larger expert community Oracle can bring key modules to enterprise grade, higher transaction rates possible, smart contracts Intelligent protection of competitive data in same blockchain Much easier design, administration of processes Much more efficient, higher transaction rates possible Why Hyperledger Fabric? Open Source Permissioned Modular Channels No Cryptocurrency
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Oracle and/or its affiliates. All rights reserved. | Extending Hyperledger with Oracle’s Enterprise Genes Performance at scale Parallel execution Elastic scale-out Resource pooling Rich queries with SQL Chaincode in serverless functions Security & Confidentiality Permissioned blockchain Integrated identity mgmt. Certificate revocation mgmt. Data at-rest encryption Declarative access controls Enterprise Integration REST APIs Java & Node.js SDKs SaaS Integration Toolkits Oracle Integration Cloud Connector Visual components for low-code development Operational resilience High availability Autonomous recovery Continuous backup Supportability & Operations Dynamic configuration Monitoring dashboards Zero-downtime managed patching 26
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Introducing Oracle Autonomous Blockchain
Cloud Service
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Oracle and/or its affiliates. All rights reserved. | Oracle Blockchain Cloud Service • Enterprise grade PaaS offering, managed by Oracle to simplify operations • Based on open source Hyperledger Fabric technology with Oracle enhancements and cloud infrastructure services • Build blockchain networks at Global scale, and develop or extend apps with REST API and SDKs • Highly secured and protected transactions and data meant only for permissioned members • Extend enterprise boundaries through tight integration with Oracle ERP and SaaS, PaaS, & apps in cloud & on-premise Securely extend business processes and accelerate B2B transactions Distributed Ledger Smart Contracts Privacy Consensus
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Oracle and/or its affiliates. All rights reserved. | Basic Blockchain Schematic (simplified) Ordering Endorsing Consensus A P I A P I Transaction Ledger State of the World Blocks, Encryption Ordering Endorsing Consensus Transaction Ledger State of the World Blocks, Encryption Blockchain Network Peer Peer
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Oracle and/or its affiliates. All rights reserved. | Oracle BCS Network Schematic (simplified) Ordering Endorsing Consensus A P I A P I Transaction Ledger State of the World Blocks, Encryption IdentityContracts Ordering Endorsing Consensus Transaction Ledger State of the World Blocks, Encryption IdentityContracts Console, Dashboard Console, Dashboard Blockchain Network
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Oracle and/or its affiliates. All rights reserved. | Oracle OABCS Architecture Industrialized Blockchain Cloud Platform for Enterprise Infrastructure Services OPC & OCM running Managed Docker Container service, IDCS (security/identity service), EHCS (Kafka service) Core Services Blockchain Cloud Service (BCS) core: Peers, Smart Contracts, REST Proxy, Membership Services, Ordering Service Integration Services BCS REST APIs for Operations and Ledger Queries/Transactions Data Services OPC Storage Cloud – Object Store Administration and Operations Support (Ops) OPC Operations and BCS Administration Console with REST APIs Oracle Blockchain Cloud Service (BCS) 38 Pre-assembled Managed service Production-ready Public or private cloud
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Oracle and/or its affiliates. All rights reserved. | Oracle OABCS Integration Ecosystem Infrastructure Services OPC & OCM running Managed Docker Container service, IDCS (security/identity service), EHCS (Kafka service) Core Services Blockchain Cloud Service (BCS) core: Peers, Smart Contracts, REST-Proxy Membership Services, Ordering Service, . Integration Services BCS REST APIs for Operations and Ledger Queries/Transactions Data Services OPC Storage Cloud – Object Store Administration and Operations Support (Ops) OPC Operations and BCS Administration Console with REST APIs Oracle Blockchain Cloud Service (BCS) ACCS PROCESS INTEGRATION APP BUILDER DEVELOPER SOA MOBILE PaaS JCS IaaS COMPUTE CONTAINER ON-PREM Integration options via REST API and Client SDKs for Java and Node.js (Javascript) ERP CX HCMSCM EPM IoTSaaS 39
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Oracle and/or its affiliates. All rights reserved. | Components of a Oracle Blockchain Cloud Service Validating Nodes / Peers Ordering Service Smart Contract/ Chaincode Ledger (World State) Applications REST Proxy Membership Service Admin Console REST proxy Users and ApplicationsUsers and ApplicationsApplications (SDK based) Users and ApplicationsUsers and ApplicationsApplications (REST API) Managed PaaS
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Oracle and/or its affiliates. All rights reserved. | • BCS Console: Web UI & REST API for administration, operations and monitoring the blockchain network • Admin tasks: – Bring up/down blockchain network and manage nodes (peers, orderers, CA) – Configure network channels and policies – Deploy/instantiate smart-contracts – Add peers, orderers, member organizations – Create channels, edit policies • Monitoring & troubleshooting: – View network topology – Monitor status of peers, orderers and other network components – Monitor operations metrics – View ledgers blocks – View log files for troubleshooting BCS Administration/Operations
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Oracle and/or its affiliates. All rights reserved. | Ledger X • Collaborative network of organizations using a common blockchain – Oracle cloud or heterogeneous nodes • Create a new network or add to an existing network • Ensure privacy by creating channels with distinct policies and data access spanning multiple orgs BCS Interactions – Creating Business Network BCS A BCS B BCS C Org A Org B Org C P P P P P P P P P P P Consortium: X (A+B+C); Channel: CH1 Consortium: Y (A+C+D); Channel: CH2 P PLedger Y O O O O O O HLF D Org D P P P Oracle Public Cloud On Premises
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Oracle and/or its affiliates. All rights reserved. | Integration Accelerators for OBCS SaaS SAAS APPLICATION INTEGRATION TOOLKITS • Sample templates & design patterns • Sample smart contracts & integration components ORACLE INTEGRATION CLOUD • Adapters for Oracle & 3rd party applications in cloud and on-prem • Turn application events into REST calls to run blockchain transactions App App SaaS PaaS ON-RAMPS WITH EMBEDDED APIS OPEN BANKING API PLATFORM REST API-DRIVEN INTEGRATION • Invoke txn’s in sync & async mode • Get txn status • Query ledger data SaaS PaaS JAVA AND NODE.JS CLIENT SDKS • Invoke txn’s async • Get txn status • Query ledger data • Subscribe to events • Add channels/peers • Enroll new members PaaS On-premises SaaS PaaS Public or private cloud Legend
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Copyright © 2018,
Oracle and/or its affiliates. All rights reserved. | Addressed Barriers to Enterprise Adoption Performance at scale Parallel execution Elastic scale-out Faster data updates Security & Confidentiality Permissioned blockchain Integrated identity mgmt. Data protection at-rest Enterprise Integration REST APIs Java & Node.js SDKs SaaS Integration Operational resilience High availability Autonomous recovery Continuous backup Supportability & Operations Dynamic configuration Monitoring dashboards Managed patching
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Oracle and/or its affiliates. All rights reserved. | Key Oracle Focus Areas in Blockchain Enterprise-Ready • Highly secure, built-in privacy • Scalable business networks • Highly resilient, built-in backups and recoverability Ease of Integration • REST API for API-driven integration • SDKs for Java, Node.js • Plug-n-play integration from Oracle SaaS, PaaS, and on premises apps Quick Time-to-Value • Pre-assembled, managed PaaS • Dynamic configurability and member on-boarding • Start developing applications within minutes Extending Enterprise Boundary • Securely extend ERP/SCM/GL business processes in Oracle SaaS, on premises and non-Oracle systems to streamline data exchange and conduct trusted transactions with other organizations • Enables trusted transactions between Corporates and Banks in Oracle’s Digital Innovation Platform for Open Banking
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Oracle and/or its affiliates. All rights reserved. | Security and Confidentiality • Permissioned Blockchain – Enrolled membership based on network Founder’s authorization – Members exchange X509 certificates • Access Control via Oracle Cloudgate and Identity Management CS – Transport security via TLS – Admin access and REST API authentication via IdM CS defense-in-depth – Blockchain network messages authenticated via digital signatures – In-transit and at-rest encryption protects transaction messages and stored “world state” & ledger blocks • Confidentiality Domains within the Blockchain Network – Blockchain subnetted into channels to enable private transactions and maintain segregated ledgers – Channels established by a group of member organizations with restricted access governed by policies for joining with approval by other members – All transactions sent to a channel can only be endorsed and committed by authorized peer nodes belonging to the specified channel – The channel’s ledger is only accessible by the nodes of the organizations authorized to join – Member organizations’ nodes join a channel with read-only or read/write permissions
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Oracle and/or its affiliates. All rights reserved. | Managed Service Enables and Accelerated Path to Business Value Tasks Managed By Provisioning & Configuration Provisioning Blockchain Cloud Service (BCS) instance CUSTOMER ▪ Provision EventHub Service (Kafka) EMBEDDED ▪ Provision ACCS Service (Managed Containers) EMBEDDED ▪ Provision Cloud Storage EMBEDDED ▪ Create and start all required VMs and Containers EMBEDDED Configure organization CUSTOMER Add/remove peers CUSTOMER Define channels and related policies CUSTOMER Enroll clients (applications) CUSTOMER Development & Integration Develop smart contracts CUSTOMER Install and Instantiate smart contracts CUSTOMER Invoke smart contracts CUSTOMER Develop and deploy applications that invoke smart contracts CUSTOMER Ongoing Support, Operations, and Maintenance Start/Stop/Restart BCS Instance CUSTOMER Patching/Upgrading a BCS Instance ORACLE Monitoring a BCS instance ORACLE & CUSTOMER Continuous backup of configuration and ledger blocks EMBEDDED Troubleshooting BCS instance problem ORACLE Autonomous recovery of configuration or ledger blocks EMBEDDED Troubleshooting smart contract problem CUSTOMER Troubleshooting integrating application problem CUSTOMER
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Oracle and/or its affiliates. All rights reserved. | A sample use case for Channels Procurement between different parties • Automaker integrating BCS with its ERP system, setting up a ‚network‘ on Oracle BCS • Adding 4 dealerships to this ‚network‘ as participants – Each has its own ERP software that need to be integrated Youtube link
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Oracle and/or its affiliates. All rights reserved. 49 Oracle Blockchain Cloud Service The most comprehensive distributed ledger cloud platform to securely extend your business processes and conduct online transactions in trusted networks with your suppliers, banks, and other trade counterparties For more info: • oracle.com/blockchain • cloud.oracle.com/blockchain
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Oracle and/or its affiliates. All rights reserved. | Confidential – Oracle Internal
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Oracle and/or its affiliates. All rights reserved. |