A secure( t,n )shared signature scheme
Shi Rong · Journal of the China Railway Society · 2000
Based on discrete logarithms problem,this paper proposes a secure ( t,n ) shared signature scheme. The scheme integrates signature scheme and the ( t,n ) threshold scheme,and preserves the merits inherent in them.In the scheme,the signer may generate a ciphertext of signsture for a message by using the own personal key,and transmit the ciphertext to a specified group of verifiers which adoptes ( t,n ) threshold scheme.Any t out of n verifiers in the group can share the authoring for message recovery.Compared with Harn's ( t,n ) scheme and its further modification,the proposed scheme requires smaller communication cost,and achieves more secrecy of data transmission.