CIA/e-voting-system
Alexis Bruneteau 0dd0f100f5 fix: Prevent frontend TypeError from undefined array access
Fix undefined variable crashes when accessing property 'length' on undefined:
- "can't access property 'length', e is undefined"

CHANGES:
1. Election detail page ([id]/page.tsx):
   - Ensure candidates array exists when fetching election data
   - Default to empty array if API returns undefined candidates

2. Active elections list page (active/page.tsx):
   - Validate API response is an array before processing
   - Ensure each election has candidates array with fallback

3. Blockchain visualizer (blockchain-visualizer.tsx):
   - Add optional chaining check before accessing data.blocks
   - Prevent crashes when data prop is undefined

All changes follow defensive programming practices:
- No more direct property access without null checks
- Array fallbacks ensure predictable behavior
- Optional chaining used consistently

This fixes the error that occurred when navigating to election pages.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-11 19:18:42 +01:00
..

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 PQC
  • POST /api/auth/login - Authentification JWT
  • GET /api/elections/active - Élection active
  • POST /api/votes/submit - Vote signé avec signatures hybrides
  • GET /api/elections/{id}/results - Résultats

Voir http://localhost:8000/docs pour API interactive.


Production-ready post-quantum e-voting system 🔐 MIT