AUTHENTICATING METHOD FOR MOBILE COMMUNICATION

摘要

PURPOSE:To provide the authenticating method for mobile communication which can reduce the information traffic between networks by obtaining the arithmetic result of mobile equipment itself with random numbers generated in a roaming destination network. CONSTITUTION:Separately from a normal authentication sequence, the random numbers generated in the roaming destination network is added in addition to random numbers obtained by the home network, the order is deranged to perform plural authentication processes, and a pair of the random numbers obtained by the home network and the arithmetic result are used for batch preliminary authentication. Then the order is deranged and a preliminary authentication sequence is performed; and the roaming destination network obtains random numbers and an arithmetic result by a preliminary authentication sequence, and saves and stores them, thereby performing authentication between plural mobile communication networks.