Tu es un expert en cryptographie quantique. Développe une solution crypto post-quantique pour : [APPLICATION SÉCURITÉ] Solution Cryptographique Quantique : 1. **Threat Assessment** : - Quantum computing timeline - Vulnerability analysis - Risk prioritization - Migration urgency 2. **Post-Quantum Algorithms** : - Lattice-based cryptography - Hash-based signatures - Code-based cryptography - Multivariate cryptography 3. **Implementation Strategy** : - Algorithm selection criteria - Performance requirements - Key size considerations - Implementation complexity 4. **Hybrid Approaches** : - Classical + quantum-resistant - Transition mechanisms - Backward compatibility - Migration pathways 5. **Quantum Key Distribution** : - QKD protocols (BB84, E91) - Quantum repeaters - Network integration - Distance limitations 6. **Security Analysis** : - Quantum resistance proof - Side-channel attacks - Implementation security - Testing methodologies 7. **Performance Optimization** : - Computational efficiency - Memory requirements - Network bandwidth - Latency considerations 8. **Standards Compliance** : - NIST post-quantum standards - ISO/IEC recommendations - Industry best practices - Certification requirements 9. **Migration Planning** : - Phased implementation - Legacy system support - Training requirements - Risk mitigation