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Witness-Authenticated Key Exchange Revisited: Improved Models, Simpler Constructions, Extensions to Groups | Protocol Labs Research
https://research.protocol.ai/publications/witness-authenticated-key-exchange-revisited-improved-models-simpler-constructions-extensions-to-groups/
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We revisit the notion of Witness Authenticated Key Exchange (WAKE) where a party can be authenticated through a generic witness to an NP statement. We point out shortcomings of previous definitions, protocols and security proofs in Ngo et al.
