Wireless Certificate Management Protocol Supporting Mobile Phones

PKI (Public Key Infrastructure) in wired internet is not suitable for the mobile phone because of the limitation of performance such as less memory and less powerful CPU. Therefore, we need to develop a wireless PKI that provides the similar security level as the wired PKI to support a mobile phone. Especially, certificate management is the start point of PKI. In this paper, we propose a lightweight and secure Wireless Certificate Management Protocol(CMP) that is executable to the mobile phone that has a constrained communication environment and limitation of performance, and show the implementation results of the scheme on the mobile phone. We minimize data sizes processed in mobile phone, and optimize protocols for the certificate management. This results in the reduced module sizes to be able to execute in mobile phone and shows as the same level as the wired CMP.