Valid medium management system
AssigneeFujitsu Limited
InventorRyota Akiyama
Life of this patent
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Abstract
In this system, 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 1 to issue a script medium (MO) 6, decrypts a valid medium certificate in a storage medium delivered from the factory using a key Ka, and generates a script medium (MO) 6. The script medium (MO) 6 is transmitted to the script storage system 1, and the script storage system 1 records a script document on the script medium (MO) 6. 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 the configuration, a script document is recorded only for the script.
Claims29
A valid medium management system, comprising:
- an original data storage system storing an original data;
- a storage unit storing a key corresponding to an ID number specifying the original data storage system;
- and
- a valid medium issuing system obtaining a key corresponding to the ID number from said storage unit, and putting a signature of a valid medium in a non-falsified area of a storage medium using the key, wherein
- said original data storage system decrypts the signature of the valid medium from the non-falsified area, and records the original data on the storage medium.
A valid medium management system, comprising:
- a certified copy/duplicate storage system storing a certified copy or a duplicate of an original data;
- a storage unit storing a key corresponding to an ID number specifying the certified copy/duplicate storage system;
- and
- a valid medium issuing system obtaining a key corresponding to the ID number from said storage unit, and putting a signature of a valid medium in a non-falsified area of a storage medium using the key, wherein
- said certified copy/duplicate issuing system decrypts a signature of the valid medium from the non-falsified area using the same key of the system as the key from said storage unit, and stores a certified copy or a duplicate of the original data on the storage medium.
A valid medium management system, comprising:
- an original data storage unit storing an original data of a document;
- a storage unit storing a key corresponding to an ID number specifying said original data storage unit;
- and
- a valid medium issuing unit obtaining a key corresponding to the ID number from said storage unit, and transmitting to said original data storage unit information for a signature of a valid medium in a non-falsified area of a storage medium using the key, wherein
- said original data storage unit puts a signature of a valid medium in the non-falsified area according to information for the signature of the valid medium transmitted from said valid medium issuing unit, decrypts the document using the same key as the key obtained from the storage unit, and records the original data on the storage medium.
A valid medium management system, comprising:
- a certified copy/duplicate storage unit storing a certified copy or a duplicate of an original data;
- a storage unit storing a key corresponding to an ID number specifying said certified copy/duplicate storage unit;
- and
- a valid medium issuing unit obtaining a key corresponding to the ID number from said storage unit, and transmitting to said certified copy/duplicate storage unit information for a signature of a valid medium in a non-falsified area of the storage medium using the key, wherein
- said certified copy/duplicate storage unit puts a signature of a valid medium in the non-falsified area according to information for a signature of a valid medium transmitted from said valid medium issuing unit, decrypts the original data using the same key as the key obtained from said storage unit, and records a certified copy or a duplicate of the original data on the storage medium.
A valid medium managing method, comprising:
- a signature process of reading a key of said original data storage unit from a storage unit based on an ID number of an original data storage unit putting a signature of a valid medium certificate in a non-falsified area of a storage medium using the key;
- and
- an original data recording process of receiving a storage medium used for the signature, decrypting the signature using the key, and recording an original data on the storage medium.
A valid medium managing method, comprising:
- a signature process of reading a key of said certified copy/duplicate storage unit based on an ID number of said certified copy/duplicate storage unit, and putting a signature of a valid medium certificate in a non-falsified area of a storage medium using the key;
- and
- a certified copy/duplicate recording process of receiving a storage medium used for the signature, decrypting the signature using the key, and recording a certified copy or a duplicate of the original data on the storage medium.
A valid medium management program which can be processed by a control device, and performs:
- a signature process of reading a key of an original data storage unit from a storage unit based on an ID number of the original data storage unit, and putting a signature of a valid medium certificate in a non-falsified area of a storage medium using the key;
- and
- a script recording process of receiving a storage medium used for the signature, decrypting the signature using the key, and recording an original data on the storage medium.
A valid medium management program which can be processed by a control device, and performs:
- a signature process of reading a key of said certified copy/duplicate storage unit based on an ID number of said certified copy/duplicate storage unit, and putting a signature of a valid medium certificate in a non-falsified area of a storage medium using the key;
- and
- a certified copy/duplicate recording process of receiving a storage medium used for the signature, decrypting the signature using the key, and recording a certified copy or a duplicate of the original data on the storage medium.
A valid medium issuing apparatus, comprising:
- a reading unit reading a key of an original data storage unit from a storage unit based on an ID number of the original data storage unit;
- and
- a signature unit of putting a signature of a valid medium in a non-falsified area of a storage medium using the key.
A valid medium issuing apparatus, comprising:
- a reading unit reading a key of said certified copy/duplicate storage unit based on an ID number of said certified copy/duplicate storage unit;
- and
- a signature unit putting a signature of a valid medium in a non-falsified area of a storage medium using the key.
Dependencies are inferred from the claim text.