METHOD FOR MULTIPURPOSE UNDENIABLE DIGITAL SIGNATURE SCHEME

摘要

PURPOSE: A method for multipurpose undeniable digital signature scheme is provided to enable users to shift undeniable signature scheme into ordinary signature so as to be able to use for multipurpose. CONSTITUTION: A method for multipurpose undeniable digital signature scheme includes the following steps. Forming a signer's secret key, public key, and a signature subjective message. Generating undeniable signature scheme. Transmitting signature subjective message and hash parameter to an inspector. Inspecting the undeniable signature scheme according to the signature subjective message to determine the authentication of the signature. Converting the undeniable signature scheme into an ordinary signal. Confirming whether it is the error of the signer or the undeniable signature scheme when the undeniable signature scheme authentication has failed.