초록 ▼

A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM, and RAM. The ROM, EEPROM, and RAM are connected to the CPU bus, and a system bus of a device whi

A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM, and RAM. The ROM, EEPROM, and RAM are connected to the CPU bus, and a system bus of a device which utilizes the data can be connected to the CPU bus. A data copyright management system program, crypt algorithm, and user information are stored in the ROM, and a first public-key, a first private-key, a second public-key, a second private-key, a first secret-key, a second secret-key, and copyright information are stored in the EEPROM. The data copyright management apparatus may be configured in the form of a monolithic or hybrid IC, a thin IC card, PC card, insertion board, and further, may be incorporated in a computer, television set, set-top box, digital video tape recorder, digital video disk recorder, digital audio tape apparatus, or personal digital assistants, and the like.

대표청구항 ▼

[ What we claim is:] [1.] A data copyright management apparatus used with a user terminal for utilizing digital data:said data copyright management apparatus comprising a central processing unit, a central processing unit bus, read-only semiconductor memory, electrically erasable programmable read-o

[ What we claim is:] [1.] A data copyright management apparatus used with a user terminal for utilizing digital data:said data copyright management apparatus comprising a central processing unit, a central processing unit bus, read-only semiconductor memory, electrically erasable programmable read-only memory, and read/write memory;wherein:said central processing unit, said read-only semiconductor memory, said electrically erasable programmable read-only memory, and said read/write memory are connected to said central processing unit bus, and a system bus of said user terminal is able to be connected to said central processing unit bus;a data copyright management system program, a copyright management program, a cryptography program based on a crypt algorithm, and user information are stored in said read-only semiconductor memory; anda first public-key, a first private-key, a second public-key a second private-key,, a first secret-key, a second secret-key, and copyright information are stored in said electrically erasable programmable read-only memory.