Valid medium management system

Details Valid medium management system Valid medium management system

2008-09-02

2008-09-02

Sheikh, Ayaz (Department: 2131)

Cryptography

Key management

C713S193000

Reexamination Certificate

active

10209606

ABSTRACT:
A valid medium issuing system reads a key Ka corresponding to an ID number from a key management book at a request from the script storage system to issue a script medium (MO), decrypts a valid medium certificate in a storage medium delivered from the factory using a key Ka, and generates a script medium (MO). The script medium (MO) is transmitted to the script storage system, and the script storage system records a script document on the script medium (MO). In this process, a decrypting process of a valid medium certificate is performed using the same key Ka, and after confirming the script of the storage medium, the script is recorded. With this configuration, a script document is recorded only for the script.

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