An new anonymous authentication scheme for cloud computing

Cloud computing is a hot topic of current research, for anonymous authentication is required in many applications scenarios of e-business based on cloud computing, users do not want to expose their identity, users just hope that service providers know they are legitimate users like, for this application, this paper presents a anonymous authentication scheme without certificate, which this scheme avoids the issues how to revocation public key certificate and the escrow problem of key, and then the security of the scheme is analyzed.