High-Performance Blockchain Network

Overview

This project is a high-performance blockchain network developed using Golang. The network supports multiple nodes, uses a secure Proof-of-Work (PoW) consensus mechanism, ECC for key generation, and SHA-256 for block hashing.

Features

• Supports multiple nodes for enhanced scalability and performance.
• Secure PoW consensus mechanism for block validation.
• Utilizes ECC for secure key generation and SHA-256 for block hashing.
• Users can create wallets, securely generate public/private key pairs and participate in mining activities.
• The network can facilitate Y transactions per second, optimized for real-time usability.
• Seamless interaction with the blockchain network through an integrated blockchain explorer for real-time visualization of the blockchain ledger.
• GRPC and Protobuf for efficient internal service communication and secure gateway for external communication.

Architecture

Core Components

1. Blockchain Service

   • Handles core blockchain operations
   • Implements Proof-of-Work (PoW) consensus
   • Manages block creation and validation
   • Handles peer-to-peer network synchronization
   • Ports:
     • gRPC Server: 7000 (default)
     • Gateway/HTTP Server: 7070 (default)

2. Wallet Service

   • Manages wallet operations
   • Handles key pair generation using ECC
   • Manages transaction creation and signing
   • Ports:
     • gRPC Server: 5000 (default)
     • Gateway/HTTP Server: 5050 (default)

Technical Features

• Consensus: Proof-of-Work (PoW) mechanism
• Cryptography:
  • ECC for key generation
  • SHA-256 for block hashing
• Network Protocol:
  • gRPC for internal service communication
  • REST API gateway for external access
• Data Storage: Persistent blockchain storage
• User Interface: Web-based blockchain explorer and transaction viewer

API Endpoints

Blockchain Service

• Gateway Server (default: 7070)
  • /explorer - Blockchain explorer UI
  • /transactions - Transaction viewer UI
  • /hello-world - Health check endpoint
  • / - REST API endpoint

Wallet Service

• Gateway Server (default: 5050)
  • /index - Wallet management UI
  • /hello-world - Health check endpoint
  • / - REST API endpoint

Running the Project

NOTE

• bch-grpc port must be between 7000 and 7003
• wal-grpc port must be between 5000 and 5003
• bch-gateway port must be between 5050 and 5053
• the terms "neighbors" and "peers" are used interchangeably in the context of the project.

To run the project, follow these steps:

1. First, clone the repository:

git clone github.com/zde37/Zero-Chain

2. Navigate to the project directory:

cd Zero-Chain

3. install the dependencies:

go mod tidy

4. Spin up the first node with default settings:

go run main.go

5. Spin up other nodes:

go run main.go --bch-grpc=<USE_PORT_OF_CHOICE> --wal-grpc=<USE_PORT_OF_CHOICE> --wal-gateway=<USE_PORT_OF_CHOICE>

Available command-line flags:

• --bch-grpc: Blockchain gRPC server port (default: 7000)
• --bch-gateway: Blockchain HTTP/Gateway server port (default: 7070)
• --bch-host: Blockchain server host (default: 127.0.0.1)
• --wal-grpc: Wallet gRPC server port (default: 5000)
• --wal-gateway: Wallet HTTP/Gateway server port (default: 5050)

Once running, you can access:

• Blockchain Explorer UI: http://localhost:7070/explorer
• Transactions UI: http://localhost:7070/transactions
• Wallet UI: http://localhost:5050/index
• Health check endpoints: http://localhost:7070/hello-world and http://- localhost:5050/hello-world

The system will automatically:

• Start the blockchain service
• Begin syncing with neighbor nodes
• Resolve any blockchain conflicts
• Start the mining process
• Make all services available via both gRPC and REST APIs