Cryptography | Digital signature schemes

Undeniable signature

An undeniable signature is a digital signature scheme which allows the signer to be selective to whom they allow to verify signatures. The scheme adds explicit signature repudiation, preventing a signer later refusing to verify a signature by omission; a situation that would devalue the signature in the eyes of the verifier. It was invented by David Chaum and Hans van Antwerpen in 1989. (Wikipedia).

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Related pages

Prime number | Digital signature | Designated verifier signature | Primitive element (finite field) | Non-repudiation