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ECDSA Node

This project demonstrates a simple digital signature implementation using the Ethereum ECDSA (Elliptic Curve Digital Signature Algorithm) for secure transactions.

New Features

  • 🔒 Secure private key encryption using AES-256
  • ✅ Wallet creation with automatic key encryption
  • 💫 Transaction signing with encrypted keys
  • 🛡️ Robust error handling and validation

Security Features

  • Private keys are never stored in plain text
  • AES-256 encryption for key storage
  • Signature verification for all transactions
  • Proper error handling for security-related operations

Prerequisites

  • Node.js and npm installed
  • Environment variables set up (see below)

Environment Variables

Create a .env file in the server directory:

ENCRYPTION_KEY=your-32-character-encryption-key

Getting Started

  1. Clone the repository
  2. Install dependencies:
cd server
npm install
  1. Set up your environment variables
  2. Run the tests:
npx ts-node src/scripts/tests/wallet.test.ts
npx ts-node src/scripts/tests/wallet-edge-cases.test.ts

Security Considerations

  • Keep your ENCRYPTION_KEY secure and never commit it to version control
  • Private keys are encrypted at rest
  • All transactions require valid signatures