LITERARY WORK DATA DISTRIBUTING SYSTEM, ELECTRONIC EQUIPMENT, SERVER TERMINAL, REPRODUCTION CONTROL METHOD FOR LITERARY WORK DATA, PROGRAM, PROGRAM, AND RECODING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a mechanism which allows only a proper user to reproduce information based on a data, instead of limiting reproduction.;SOLUTION: A PDA 12 acquires a number data which will uniquely discriminate a portable telephone 11, and generates a key data by enciphering the data with a uni-directional function. The PDA 12 transmits the key data through the portable telephone 11 to a contents server 14. The contents server 14 enciphers the copyright contents which is a data protected by copyright by the key data, which is transmitted as enciphered contents to the PDA 12. The PDA 12 loads the enciphered contents in a non-volatile memory as contents for reproduction. The PDA 12 reacquires the number data of the portable telephone 11, enciphers this data again by the uni-directional function, and reproduces the key data. The PDA 12 deciphers and reproduces the contents, for reproduction, by using the reproduced key data.;COPYRIGHT: (C)2003,JPO