INFORMATION PROTECTION SYSTEM
PROBLEM TO BE SOLVED: To use digital content recorded in a portable storage device having a copy prevention function within a range of a certain limited terminal. SOLUTION: The digital content is encrypted to be recorded in the portable storage device, and a result obtained by performing an operatio...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To use digital content recorded in a portable storage device having a copy prevention function within a range of a certain limited terminal. SOLUTION: The digital content is encrypted to be recorded in the portable storage device, and a result obtained by performing an operation by acting device unique information held by the terminal to a license key to be written in an access restriction area of the storage device through an encryption session between the terminal and the storage device is used as an encryption key used for this encryption. COPYRIGHT: (C)2009,JPO&INPIT |
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