| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and a method for managing security, by which an information contents distribution dealer or telephone company can provide the information of music or the like at ease without damaging a contents holder by making difficult the illegal copy of contents data. SOLUTION: This system has an enciphering processing means 7 for generating enciphered contents data Cc by performing enciphering processing of contents data while using a contents key K stored in a key managing server 6, an enciphered contents data transmitting means for transmitting the enciphered contents data Cc, to which enciphering processing is applied, and the contents key K to plural contents distribution servers 11, and also has a security management cost operating means for operating security management costs for enciphering processing by performing statistic processing of download in a terminal. |
