Mobile technologies are advancing towards data related services which demands security as priority in providing the services. Wireless Public Key infrastructure has been evolved by Open Mobile Alliance (OMA) to adapt to the resource constrained environment. Digital Certificates are the core in such data related services. Certificate revocation is an integral part in providing security to the services. Certificate revocation has been classified by the way of distributing status information into push and pull techniques. This paper proposes a certificate revocation model for the mobile scenarios based on the push technique. The proposed model is illustrated through a case study.