Patent ID: 7409554

Claim:
A data processing system comprising: a first memory device which includes data storage means and data control means; and a second memory device which includes data storage means and data control means, wherein the first memory device stores an issue-management table concerning the second memory device, the second memory device stores an application program which executes data processing to which the second memory device is applied, and also stores an issue certificate having a digital signature by a private key associated with the first memory device for data including a service code for identifying the application program; issue processing of the second memory device or execution processing of the issue processing of the issue certificate for the second memory device is performed based on the issue-management table stored in the first memory device; and a tied certificate issue system for generating tied information necessary for use of the second memory device based on information extracted from both the first memory device and the second memory device; the tied information is generated in a format of a public key certificate, the generated tied information is stored in the second memory device.