Major improvements applying DRY (Don't Repeat Yourself) and KISS (Keep It Simple, Stupid): BACKEND CHANGES: - Fixed public key storage: Store as base64-encoded bytes in LargeBinary column (not double-encoding) - ElGamal key generation now produces proper "p:g:h" format with colons - Removed all double base64-encoding issues - Simplified API responses to decode bytes to UTF-8 strings for JSON serialization FRONTEND CHANGES: - Refactored ElGamalEncryption.encrypt() to use extracted helper methods (_decodeBase64, _parsePublicKey) - Eliminated nested error handling - now uses clear, composable private methods - Improved error messages with specific format validation - Simplified cryptographic operations by reducing code duplication TESTING: - Verified public key format: "p:g:h" properly encoded as base64 - Full vote submission flow tested and working - Blockchain integration confirmed functional - No encryption errors during vote submission This fixes the original "Invalid public key format" error that was preventing vote submission. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
E-Voting System - Post-Quantum Cryptography
Système de vote électronique sécurisé avec cryptographie post-quantique hybride certifiée NIST FIPS 203/204.
🚀 Démarrer
# Lancer tous les services
docker-compose up -d
# Frontend: http://localhost:3000
# API: http://localhost:8000/docs
# Database: localhost:3306
🔐 Sécurité Post-Quantique
- Signatures: RSA-PSS + ML-DSA-65 (Dilithium) - FIPS 204
- Chiffrement: ML-KEM-768 (Kyber) + ElGamal - FIPS 203
- Hachage: SHA-256 (quantum-resistant)
- Approche hybride: Defense-in-depth
Voir .claude/POSTQUANTUM_CRYPTO.md pour les détails.
📁 Structure
.
├── docker/ # Configuration Docker
├── src/
│ ├── backend/ # API FastAPI
│ ├── crypto/ # Cryptographie classique + PQC
│ └── frontend/ # Interface web
├── tests/ # Tests unitaires
├── docker-compose.yml
└── README.md
🧪 Tests
pytest tests/ -v
🔑 Clés Cryptographiques
- Génération: Clés hybrides RSA + Dilithium + Kyber à l'inscription
- Stockage: Base de données sécurisée
- Signatures: RSA-PSS + Dilithium sur chaque vote
- Chiffrement: ML-KEM-768 (Kyber)
📊 Endpoints API
POST /api/auth/register- Inscription avec génération de clés PQCPOST /api/auth/login- Authentification JWTGET /api/elections/active- Élection activePOST /api/votes/submit- Vote signé avec signatures hybridesGET /api/elections/{id}/results- Résultats
Voir http://localhost:8000/docs pour API interactive.
Production-ready post-quantum e-voting system 🔐 MIT