A Simple Authentication and Key Distribution Protocol in Wireless Mobile Networks

Plenty of applications and services for personal communications in wireless mobile networks (WMN) are brought up recently, such as mobile commerce applications and teleconference applications. So the end-to-end security requirements are necessary. Nevertheless WMN don´t offer end- to-end confidentiality and integrity mechanism for personal communications. The linchpin of end-to-end security is the authentication of users. Considering the limited wireless bands and the limited computing ability of mobile devices, we present a simple authentication and key distribution protocol (SAKDP) for end-to-end secure communications. Based on symmetric cryptography and one-way function techniques, SAKDP is satisfied with secure requirements of wireless end-to-end secure communication, also enables dynamic secure communications. The proposed scheme also has identity anonymity and encryption key renewal mechanism, its computation cost and transmission cost are smaller.