Designated Confirmer Signatures

Abstract. We construct the first O(1)-size designated confirmer signatures (DCS) with security in the state-of-the-art model of Camenisch and Michels, Eurocrypt 2000, without random oracles. In particular, we achieve the security notion called the "invisibility of signature" therein.

• Type: Conference
• Year: 1994
• Where: EUROCRYPT
• Authors: David Chaum
• Keywords: Confirmer Signatures, Cryptology, EUROCRYPT 1994, Random Oracles, State-of-the-art Model