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中文 | English

License Manager

A C++-based license management system that provides functions for license generation, validation, and device fingerprint identification.

Features

  • Uses asymmetric encryption for license signing and verification
  • Generates unique device fingerprint identifiers
  • Supports reading and writing license files
  • Provides singleton pattern for key loading management

Core Modules

  • Crypto: Provides RSA-based signing and verification capabilities
  • DeviceFingerprint: Collects hardware information to generate device fingerprints
  • LicenseManager: Core class managing the license lifecycle

Usage Example

// Initialize the license manager
auto manager = LicenseManager::Instance("privateKeyPath", "publicKeyPath");

// Generate a license
LicenseInfo info;
info.deviceFingerprint = DeviceFingerprint().generateFingerprint();
info.validStart = 1693440000;
info.validEnd = 1725036800;
std::string licenseCode = manager->generateLicenseCode(info);

// Verify a license
LicenseInfo verifiedInfo;
std::string fingerprint = DeviceFingerprint().generateFingerprint();
bool isValid = manager->verifyLicense(licenseCode, verifiedInfo, fingerprint);

Build Requirements

  • C++17 compatible compiler
  • OpenSSL development library
  • CMake 3.14+

Installation Guide

  1. Install dependencies: sudo apt-get install libssl-dev cmake
  2. Create build directory: mkdir build && cd build
  3. Configure project: cmake ..
  4. Build project: make

License

This project uses the MIT License. See the LICENSE file for the complete license agreement.