2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/32339This paper presents a directed signature scheme with the property that the signature can be verified only with the help of signer or signature receiver. We also propose its applications to share verification of signatures and to threshold cryptosystems.9 Pages, No figures. Presented in the National Conference on Information Security, New Delhi- India, Jan-2003Cryptography and SecurityK.6.M.,K.6.5,G.1.0,E.3,D.4.6text