SECURE PROCESSING FOR AUTHENTICATION OF WIRELESS COMMUNICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a technology that improves security and integrity of a wireless communications system by effectively preventing any unauthorized access to an authentication key (A-Key) and eliminating cloning in a wireless communication system.

SOLUTION: A secure processor 104 exchanges random numbers with a wireless communication device 100 to generate the A-Key. The secure processor 104 then encrypts the A-Key and transfers the encrypted A-Key to an authentication system 103. When the authentication system 103 generates or updates SSD, the authentication system transfers the encrypted A-Key and other information to the secure processor 104. The secure processor 104 decrypts the A-Key and calculates the SSD. The secure processor 104 transfers the SSD to the authentication system 103 for use in the authenticating system 103 and the wireless communication device 100.

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