Tatsuaki Okamoto. Designated Confirmer Signatures and Public-Key Encryption are Equivalent. In Yvo Desmedt, editor, Advances in Cryptology - CRYPTO 94, 14th Annual International Cryptology Conference, Santa Barbara, California, USA, August 21-25, 1994, Proceedings. Volume 839 of Lecture Notes in Computer Science, pages 61-74, Springer, 1994. [doi]
Abstract is missing.