Method and apparatus for contents information

Details Method and apparatus for contents information Method and apparatus for contents information

2005-05-03

2005-05-03

Peeso, Thomas R. (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S182000, C713S152000, C713S152000

Reexamination Certificate

active

06889323

ABSTRACT:
A signal representative of a key is generated from authenticator-value information and key base information. The authenticator-value information represents a specified authenticator value. The key base information contains identification information which is set to reproduce the specified authenticator value according to a predetermined degeneration function. Contents information is encrypted into encryption-resultant contents information in response to the key signal. The key base information and the encryption-resultant contents information are transmitted or recorded.

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