Secure group signature scheme shared among different groups

Abstract

New group signature schemes that are secure,effective and shared among different groups are an important direction in re-searching.The group signature scheme based on discrete logarithm problem can be used to share public parameter of the system among different organizations.Further,the main idea of the zero-knowledge proof is used to guarantee the security and efficiency of the scheme.Such sharing represents a high support for a uniform and secure system construction,and is favor to the management and application of the group signature system.