Terminal device for authorizing use of content distributed...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular node for directing data and applying cryptography

Reexamination Certificate

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Details

C713S193000, C713S152000, C713S152000

Reexamination Certificate

active

07000104

ABSTRACT:
When content is downloaded, the terminal device writes such content into a data storage region only accessible by a system application program. Upon completion of formal procedures, the terminal device decodes the content stored in the data storage region into an another region from which the content can only be read out using a user application program. This successfully prevents unauthorized use of the content as far as it resides in the data storage region, and ensures safe content distribution through a network.

REFERENCES:
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patent: 2000-216773 (2000-08-01), None
patent: 2000-259421 (2000-09-01), None
patent: 2000-268096 (2000-09-01), None
Garfinkel, S. and Spafford, G., “Practical UNIX Security”, Jan. 1, 1993, pp. 101-119, 164-169.
Bryan Costales, “Sendmail”, pp. 239-249 and 269-274, O'Reill & Associates, Inc., date unknown.

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