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Why we cannot wait for better post-quantum signature algorithms

Blog post from Cloudflare

Post Details
Company
Date Published
Author
Bas Westerbaan and Christopher Patton
Word Count
6,890
Company Posts That Month
13
Language
English
Hacker News Points
-
Post removed?
No
Summary

RSA and ECC, long-standing cryptographic algorithms, are at risk from future quantum computers, prompting a shift towards post-quantum cryptography with ML-KEM encryption and ML-DSA signatures, standardized by NIST in 2024. The transition to quantum-resistant cryptography is underway, with Cloudflare already using ML-KEM and aiming for complete post-quantum security by 2029. Despite challenges such as ML-DSA's larger size and performance limitations, efforts continue to develop better algorithms, including promising candidates like FN-DSA and SQIsign, though none are expected to be widely available before 2033. The urgency of the transition is driven by the potential for quantum computers to break current encryption, and the need for diverse cryptographic solutions is emphasized to ensure robust security across various applications. The ongoing NIST competition aids in evolving post-quantum cryptography beyond basic cryptographic primitives, making way for innovations like efficient post-quantum anonymous credentials.

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