Cover -- Title Page -- Copyright and Credits -- About Packt -- Contributors -- Table of Contents -- Preface -- Chapter 1: Introduction to Blockchain Technology -- The genealogy analogy -- Bitcoin -- Why Bitcoin -- A peer-to-peer network -- Cryptography and hash functions -- The distributed ledger, b...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	Wu, Xun (VerfasserIn)
Format:	Buch
Sprache:	English
Veröffentlicht:	Birmingham ; Mumbai Packt December 2018
Schlagworte:	Elektronischer Zahlungsverkehr Blockchain Einführung
Zusammenfassung:	Cover -- Title Page -- Copyright and Credits -- About Packt -- Contributors -- Table of Contents -- Preface -- Chapter 1: Introduction to Blockchain Technology -- The genealogy analogy -- Bitcoin -- Why Bitcoin -- A peer-to-peer network -- Cryptography and hash functions -- The distributed ledger, blocks, transactions, addresses, and UTXO -- The consensus mechanism -- Forking -- Mining and difficulty level -- Hacking - the 51% problem -- Private keys and Bitcoin wallets -- Bitcoin scripting -- Altcoins -- Ethereum -- Enterprise blockchain - Hyperledger -- The evolution of blockchain -- Summary -- Chapter 2: Ethereum Fundamentals -- An overview of Ethereum -- Ethereum basic concepts -- Ether -- ERC20 tokens -- Smart contracts -- Ethereum virtual machines -- Ethereum gas -- Account -- Oracle -- Other concepts -- Performance -- Throughput -- Proof-of-Stake (PoS) -- Casper -- Plasma -- Sharding -- Summary -- Chapter 3: Overview of Solidity Programming -- What is solidity? -- Tools for solidity development environment -- Browser-based IDE -- Remix -- EthFiddle -- Command-line development management tools -- Truffle -- Introduction to smart contracts -- Layout of a solidity source file -- Pragma -- Comments -- Import -- Paths -- Relative paths -- Structure of a contract -- State variables -- Data type -- Enum type -- Struct type -- Mapping -- Functions -- Input parameters -- Access modifiers -- Output parameters -- Modifiers -- Events -- Constructor -- Constant state variables, unit, and functions -- Ether units -- Time units -- Inheritance, abstract, and interface -- Common smart contract patterns -- Access restriction -- State machine -- Smart contract security -- Keep contract simple and modular -- Use the checks-effects-interactions pattern -- DoS with block gas limit -- Handle errors in external calls -- Case study - crowdfunding campaign Summary -- Chapter 4: Building an Ethereum Blockchain Application -- Decentralized application overview -- web3.js quick overview -- Provider -- DApp development tools -- Truffle -- Ganache -- Setting up an Ethereum development environment -- Installing Truffle -- Installing Ganache -- Creating a Truffle project -- Launching the Ganache environment -- Deploying a smart contract -- Writing a campaign decentralized application -- Selecting a web3 provider -- Loading account information -- Loading project information -- Handling the fund function -- checkGoalReached -- Summary -- Chapter 5: Exploring an Enterprise Blockchain Application Using Hyperledger Fabric -- Key concepts in Hyperledger Fabric -- Ledger -- Chaincode -- Channel -- Core component model -- Peers -- Membership service provider (MSP) -- Certificate authority (CA) -- Ordering service -- Hyperledger Fabric basic transaction flow -- Issuance claim -- Setting up a Hyperledger Fabric environment -- Installation prerequisites -- Installing Hyperledger Fabric -- Writing chaincode -- Development tools -- LiteIDE -- JetBrains Gogland -- Visual Studio Code -- Chaincode key concept and APIs -- Defining an issuance claim -- Initializing the chaincode -- Invoking the chaincode -- AddCompany -- ReportLost -- RequestedInfo -- SubmitClaim, ConfirmClaimSubmission, ApproveClaim -- Query -- getHistory -- Configuring Hyperledger Fabric -- Generating the certificate -- Generating an orderer genesis block -- Generating a channel configuration transaction -- Overview of Hyperledger Fabric Docker composer configuration files -- Fabric project directory structure -- Docker-compose-base.yaml -- Peer-base.yaml -- Starting the Hyperledger Fabric network -- Creating a channel -- Joining channels -- Updating the anchor -- Installing chaincode -- Instantiating the chaincode -- Invoking add broker Invoking add insurer -- Invoking ReportLost -- Invoking RequestedInfo -- Invoking SubmitClaim -- Invoking ConfirmClaimSubmission -- Invoking ApproveClaim -- Querying claim history -- End-to-end test execution -- Summary -- Chapter 6: Implementing Business Networks Using Hyperledger Composer -- Hyperledger Composer - a quick overview -- Yeoman generator -- Composer REST server -- LoopBack connector -- JavaScript SDK -- Composer playground -- Composer-cli -- Setting up a Hyperledger Composer environment -- Installation prerequisites -- Installing the development environment -- Analyzing business scenarios -- Business network archive -- Network model file (.cto) -- Script file (.js) -- Access control list (ACL) file (.acl) -- Query file (.qry) -- Designing business models -- Implementing the business transaction function -- Testing in the playground -- Deploying a business network -- Integrating with REST server -- Generating the Hyperledger Composer REST API -- Summary -- Chapter 7: Blockchain Use Cases -- Blockchain use case examples -- Payment and settlement services -- Import and export finance -- Immutable ledger -- Regulatory compliance and auditing -- Identity theft detection -- Funds back-office operation -- Collateral management -- Healthcare systems -- Real estate trading and rental markets -- IP market -- Elections -- HR and recruiting -- Public records -- Reduce contract disputes -- Sharing economy -- Integration with IoT -- Facilitate commercial and social relationships -- How to choose a proper use case -- DApp use case - healthcare data sharing -- The business problem -- A blockchain solution -- Summary -- Other Books You May Enjoy -- Index
Beschreibung:	v, 209 Seiten Illustrationen
ISBN:	9781789807974