NIST-approved post-quantum cryptography standards and transition strategy for TLS, VPN, and storage layers.
The Quantum Threat Is No Longer Theoretical
Following NIST's 2024 publication of ML-KEM (Kyber), ML-DSA (Dilithium), and SLH-DSA (SPHINCS+) standards, the "harvest now, decrypt later" attack model has entered the enterprise security agenda. Data you encrypt today could be decrypted by quantum computers within 5 to 10 years.
Which Data Is at Risk?
- Long-lived contracts and intellectual property documents
- Health records and genetic information
- Financial records and bank communications
- Government and defense correspondence
Transition Steps
- Cryptography Inventory: Map all RSA, ECDSA, and DH algorithms in use
- Hybrid Approach: Run classical and post-quantum algorithms in parallel (TLS 1.3 hybrid key exchange)
- Crypto-Agility: Architecture design where algorithms can be easily swapped
- Certificate Renewal: Migrate PKI to certificate authorities supporting ML-DSA
Implementation Challenges
Performance: Kyber keys are 10x larger than RSA-2048; bandwidth planning is required.
Compatibility: Legacy hardware (HSMs, IoT devices) may not support ML-KEM.
Standard Maturity: TLS 1.3 hybrid mode is not yet stable across all browsers.
CloudRUX's Readiness
Our VPN gateways support hybrid key exchange, and ML-KEM integration for server-side encryption in our S3-compatible object storage is in testing. We aim to have all managed services post-quantum ready by early 2027.
Conclusion
Post-quantum migration is a 2 to 3-year process. It is critical for SMBs to at least complete an inventory and adopt crypto-agility architecture in 2026.