Method and device for utilizing data content

Details Method and device for utilizing data content Method and device for utilizing data content

1995-07-31

1998-11-03

Cain, David G.

Cryptography

Cryptanalysis

380 25, H04K 100

Patent

active

058320830

ABSTRACT:
The present invention provides a data content utilizing device having data storing section for storing information obtained by encoding data contents and content identification information specifying the data contents, a utilization permitting device for generating utilization permission information used to decode data contents desired by a user and information converting section for loading data contents requested by the user from the data storing section and decoding the data contents only in the case where utilization permission information is generated by the utilization permitting device.

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