New Cryptanalysis of the Fiat-Shamir Protocol
ID: 2171fd54-5b4c-5b3e-91ef-b23cdf3268c8
STIX ID: report--2171fd54-5b4c-5b3e-91ef-b23cdf3268c8
Feed Name: Schneier on Security
A blog post discusses a new academic paper that presents theoretical attacks on the Fiat–Shamir transformation, extending known weaknesses to less contrived scenarios while stressing there is no clear real-world cryptanalytic impact. The author emphasizes that the results preclude general proofs of security for Fiat–Shamir and underscore ongoing uncertainty about its exact security guarantees.
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