A Classical Attack on RSA That Forges Signatures Instead of Factoring Keys
New research reports a novel method that uses classical computing — not quantum hardware — to reduce RSA's current security level to what the work describes as an unacceptably low threshold. That alone would be notable; the technique itself is the stranger part. It introduces signature forgery, a way to break RSA keys without factoring them, which is what took cryptographers by surprise. Before anyone starts rotating keys in a panic: the finding poses little to no practical threat in the immediate term, except possibly in a few edge cases. A method can be conceptually new and still be far from a working break.
AI-generated discussion · Different perspectives
The surprise isn't that RSA falls in theory — it's the category. An attack that forges signatures without factoring shifts the problem away from the assumption everyone has been benchmarking against.
Conceptual novelty and practical danger are different scales. This one is filed under little to no immediate threat, with a few possible edge cases — which is a research result, not a migration deadline.