Problem: Votes were being submitted to one validator but not shared with
other validators, preventing them from being included in blocks.
Root cause: When a validator received a transaction via eth_sendTransaction,
it added it to its pending_transactions pool but did NOT broadcast it to
peer validators. Only blocks were being broadcast.
This meant:
- validator-1 receives vote → adds to pending_transactions
- validator-2 (responsible for next block) never receives the vote
- validator-2 can't include vote in block because it doesn't know about it
- Result: votes sit in pending queue forever
Solution:
- Add broadcast_transaction() method following same pattern as broadcast_block()
- Broadcast transaction to all known peers via /p2p/new_transaction endpoint
- Call broadcast on receipt of each transaction
- Peer validators receive and add to their pending_transactions pool
- All validators now have same pending transactions
- Any validator can create blocks with all pending transactions
The /p2p/new_transaction endpoint already existed, so validators can now
receive and process transactions from peers.
This fixes the issue where votes were submitted successfully but never
appeared on the blockchain.
🤖 Generated with 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