Keycloak PKCE Authentication Library

Overview

A C++ library implementing OAuth2 PKCE (Proof Key for Code Exchange) authentication flow for secure client-side authentication with Keycloak servers.

Key Features

• Full OAuth2 PKCE flow implementation
• TLS/SSL support with certificate management
• Cookie-based session handling
• State management for CSRF protection
• Proxy support for development environments
• Thread-safe operations
• Comprehensive error handling

Language Support

• Core implementation in modern C++ (C++23)
• C API wrapper for language interoperability (C99)
• Language bindings available for:
  • Python (via ctypes)
  • Lua (via LuaJIT FFI)

Index

1. Integration Guides

• C API Usage
• Python Integration
• Lua Integration
• Web Server Integration Examples

4. Technical Documentation

• Architecture Overview
• Security Considerations
• API Reference
• Configuration Reference
• Error Handling

5. Development

• Building from Source
• Running Tests
• Contributing Guidelines
• Code Style Guide