Implementing a ZK-focused authenticated-encryption scheme
ID: ec8e6785-67dc-5585-b497-4d7878f4ead8
STIX ID: report--ec8e6785-67dc-5585-b497-4d7878f4ead8
Feed Name: Kudelski Security
This article presents a detailed implementation of the Ciminion authenticated-encryption scheme (EUROCRYPT 2021) as circom2 circuits for zkSNARK applications: it covers the Toffoli-based rolling function, pC/pE permutations and iterated rounds, key schedule, Farfalle-like structure, unit tests using circom_tester/mocha, and a constraints comparison showing Ciminion scales better than Feistel-MiMC for larger plaintext sets.
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