| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital data protection system capable of preventing interpolation, tapping and spoofing during contents distribution. SOLUTION: The digital data protection system is provided with a client device having application software 209, a device registration module 210, a first key generation module 211 generating a device key and an application key, a first encipherment module 212, and a secure memory 213, a device authentication server having a second key generation module 200, a device database 201 storing the device key, and an authentication module 202 providing authentication service, and a service site system having a third key generation module 203, a customer database 204, a Web server function 205, a container creating module 206, a second encipherment module 207, and a contents database 208. COPYRIGHT: (C)2004,JPO |
