Added

🔒 Security Enhancements

• Centralized Configuration Management: New config.rs module for secure configuration handling
  • Environment variable abstraction layer with validation
  • Multiple secret key providers (environment, file, external services)
  • Centralized configuration access patterns
• Enhanced CI/CD Security: Automated security scanning in GitHub Actions
  • Daily cargo audit vulnerability scanning
  • Clippy security lints integration
  • Secret leak detection in build pipeline

📋 API Documentation

• SwaggerUI Integration: Interactive API documentation for HTTP endpoints
  • Auto-generated OpenAPI specifications
  • Interactive API testing interface
  • Complete endpoint documentation with examples

Security Fixes

🛡️ Critical Vulnerability Resolutions

• RUSTSEC-2022-0093: Fixed ed25519-dalek Double Public Key Signing Oracle Attack
  • Updated from v1.0.1 → v2.2.0
• RUSTSEC-2024-0344: Resolved curve25519-dalek timing variability vulnerability
  • Updated from v3.2.0 → v4.1.3 (transitive dependency)
• RUSTSEC-2025-0009: Fixed ring AES panic vulnerability
  • Updated from v0.16 → v0.17.12
• Timing Attack Prevention: Implemented constant-time token comparison
  • Replaced vulnerable string comparison in authentication middleware
  • Added subtle crate for constant-time operations
  • Enhanced authentication logging and error handling

Improved

Configuration Management

• Environment Variable Security: Eliminated direct env::var usage throughout codebase
• Secret Handling: Secure configuration management with validation
• Error Handling: Enhanced configuration error reporting and validation

Authentication & Security

• Middleware Security: Updated authentication middleware to use configuration management
• Request Logging: Enhanced security logging for authentication failures
• Token Validation: Improved bearer token validation with timing attack prevention

Dependencies

Security Updates

• Updated: ed25519-dalek from v1.0.1 to v2.2.0 (critical security fix)
• Updated: reqwest from v0.11 to v0.12 (security and performance)
• Updated: ring from v0.16 to v0.17.12 (AES panic fix)
• Added: subtle v2.5 for constant-time cryptographic operations

Documentation & Tooling

• Added: utoipa and utoipa-swagger-ui for API documentation generation
• Enhanced: CI/CD security workflow with automated vulnerability scanning