Why the Transition to Post-Quantum Encryption Algorithms is Urgent
New algorithms replacing RSA and ECC in the face of quantum computer threats.
1Quantum Threat and RSA's Vulnerability
Classical encryption algorithms like RSA and ECC can be broken by sufficiently advanced quantum computers. These computers don't exist yet but could arrive sooner than expected, posing a serious threat to data security.
2The Importance of ML-KEM and ML-DSA
ML-KEM encryption and ML-DSA signature algorithms are designed to resist quantum attacks. Standardized by NIST in 2024, companies like Cloudflare have already started adopting these algorithms.
3Cloudflare's Post-Quantum Transition Plan
Cloudflare aims to be fully post-quantum secure by 2029. Currently, much of its traffic is encrypted with ML-KEM, but signature algorithms also need updating.
4Advantages and Disadvantages of ML-DSA
ML-DSA is secure against quantum attacks but produces larger data sizes compared to RSA and ECC. Some optimizations possible with RSA cannot be done with ML-DSA.
5New Signature Algorithms and NIST's Role
NIST has advanced nine new post-quantum signature algorithms to the third round. Better algorithms like FN-DSA are expected to be standardized soon, crucial for quantum security.
6FN-DSA and Other Candidates
FN-DSA (formerly Falcon), selected from a previous competition, is expected to be standardized soon. Other candidates include specialized algorithms like HAWK and SQIsign.
7Specialized and General-Purpose Algorithms
Post-quantum algorithms are divided into specialized and general-purpose. General-purpose ones like ML-DSA offer balanced performance, while specialized ones like SQIsign excel in specific areas.
8The Superiority of Ed25519
Ed25519, though vulnerable to quantum attacks, still offers the best performance. It stands out with small sizes and fast signing times.
9Disadvantages of SLH-DSA and LMS
Algorithms like SLH-DSA and LMS have limited use due to large signature sizes and slow signing times. Their security is also questioned.
10The Potential of HAWK and MQOM
Algorithms like HAWK and MQOM attract attention with fast signing and verification times. However, their reliability is not yet fully proven.
11Challenges of Post-Quantum Transition
Transitioning to post-quantum algorithms involves both technical and operational challenges. Updating existing systems and adopting new algorithms will take time.
12Critical Steps for the Future
Post-quantum encryption is vital for the future of digital security. Starting with current solutions like ML-DSA will ensure security until better algorithms are developed.
Original article: Cloudflare Blog — Post-Kuantum Şifreleme Algoritmalarına Geçiş Neden Acil?