AUTHENTICATION METHOD, SYSTEM AND ACCESS CONTROL OF DATA PROCESSING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a system and a method that authenticate access of a data storing device to data supplied by a host system. SOLUTION: First and second random numbers are exchanged between the host system and a recording device. An ID of the recording device that has been stored by the host system and an ID of the host system that has been stored by the recording device are encrypted by using the first and second random numbers. The encrypted IDs are exchanged between the host system and the recording device and are each decrypted by using the first and second random numbers. If the ID decrypted by the recording device is identical to the stored ID of the host system, the host system is authenticated in the recording device. If the ID decrypted by the host system is identical to the stored ID of the recording device, the recording device is authenticated in the host system. COPYRIGHT: (C)2005,JPO&NCIPI