Post Quantum Cryptography

Researchers Devise Signature-Forgery Attack That Weakens RSA Without Factoring Keys

A team including UC San Diego professor Nadia Heninger published research describing a new classical-computing attack that forges RSA signatures without factoring the underlying keys. The method reportedly cracked deprecated 1024-bit RSA keys in a few months using an academic CPU cluster, far less effort than factoring would require, and it also degrades the theoretical security of 2048- and 4096-bit keys.

it.slashdot.org · 2026-09-25

Cryptographer D.J. Bernstein argues against replacing ECC with standalone post-quantum encryption

Bernstein's cr.yp.to blog post argues that switching protocols entirely to post-quantum (PQ) cryptography, rather than combining it with existing ECC, creates unnecessary security risk. He contends that PQ implementations will inevitably contain exploitable bugs, and keeping ECC alongside PQ limits the damage those flaws can cause, at minimal extra cost.

blog.cr.yp.to · 2026-09-01