Research on Security of Multi-User Setting Signature Schemes
Zhao Junjie · Computer Technology and Development · 2009
Digital signature has been a primary means of identity authentication in era of network information.To make the technology of digital signature be more widely applied,researched the security of the digital signature schemes in the multi-user setting.It was well known that a secure signature scheme must be computationally infeasible even existential forgery against adaptive chosen-message attacks.Argued that it is not adequate for the multi-user setting.For that extended this security notion to the multi-user setting and showed that signature schemes proven secure in the single-user setting can,under reasonable constraints,also be proven secure in the multi-user setting.