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technologyreview.com·3h ago
Security
Cloudflare Blog·26d ago·5 min read
Why we cannot wait for better post-quantum signature algorithms
TL;DR
Current cryptographic algorithms like RSA and ECC are vulnerable to future quantum attacks, necessitating a shift to post-quantum solutions. Cloudflare is migrating to ML-KEM encryption and ML-DSA signatures, which are already in use to secure data.
✦ Why It Matters
Start implementing ML-DSA signatures in your authentication systems to prepare for quantum threats today.
Key Takeaways
- Begin transitioning to ML-KEM encryption for quantum resistance.
- Plan to implement ML-DSA signatures for secure authentication.
- Monitor NIST's advancements in post-quantum signature algorithms.
- Prepare for a full transition to post-quantum security by 2029.
Full Summary
RSA and ECC, widely used cryptographic algorithms, are vulnerable to future quantum computers. Although these quantum systems are not yet available, their development is accelerating, prompting a shift to post-quantum cryptography.
Cloudflare is already implementing ML-KEM encryption, which is resistant to quantum attacks, and plans to adopt ML-DSA signatures for authentication by 2029. While ML-DSA is currently the best option, it has limitations, such as larger signature sizes compared to traditional methods.
NIST is advancing several new post-quantum signature algorithms, but they won't be ready in time for the transition. The urgency to adopt existing solutions like ML-DSA is critical to safeguard against potential quantum threats.