Information processing apparatus, information processing...

Details Information processing apparatus, information processing... Information processing apparatus, information processing...

2003-07-21

2010-11-16

Parthasarathy, Pramila (Department: 2436)

Electrical computers and digital processing systems: support

System access control based on user identification by...

Using record or token

C713S165000, C713S167000, C713S193000, C705S059000, C705S057000, C705S051000

Reexamination Certificate

active

07836311

ABSTRACT:
Service data or usage right information, used as purchased content or license information, is set so as to be re-acquired on condition that an acquirer is an authorized content-purchasing client. A leaf ID as a client identifier in an enabling-key-block distribution tree, and a restoring-processing requesting file including verification data for the leaf ID are used as client identifying data, whereby it is ensured that an authorized content-purchasing client is verified.

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Notification of Reason for Refusal issued from the Japanese Patent Office in a Counterpart Application Dated Sep. 2, 2008.

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