Method, system, device and computer program for mutual...

Details Method, system, device and computer program for mutual... Method, system, device and computer program for mutual...

2007-09-25

2007-09-25

Peeso, Thomas R. (Department: 2132)

Electrical computers and digital processing systems: support

System access control based on user identification by...

C713S185000, C713S189000, C713S193000, C713S164000, C713S166000

Reexamination Certificate

active

10493545

ABSTRACT:
A data processing device10is composed of a data storage unit11that stores first authentication data, second medium authentication data generated by applying a predetermined encryption to the first medium authentication data, and second device authentication data generated by applying the predetermined encryption to first device authentication data; a medium authentication data transmission unit12transmits the first medium authentication data; an encrypted data reception unit13receives first encrypted data; an authentication unit14authenticates an information recording medium30when the first encrypted data and the second medium authentication data are identical; a device authentication data reception unit15receives the first device authentication data; and a device authentication data transmission unit16transmits the second device authentication data. Mutual authentication processing can be performed without the data processing device having a unit for encrypting, and by using data each time. Developers of various types of software can perform data transfer operation checking, debugging and the like without the risk of secret information being leaked.

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