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Revocation list generation device, revocation list generation method, and content management system
US9178702B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178702-B2 |
| Application number | US-201213702137-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 17, 2012 |
| Priority date | Apr 22, 2011 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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Abstract
Official abstract text for this publication.
Provided is a revocation list generation device that can suppress an increase in the amount of data of a revocation list. A revocation list generation device that generates a revocation list includes an acquisition unit that acquires, for a content, a revocation identifier identifying a revoked public key certificate allocated to an apparatus related to use of the content, a revocation list generation unit that generates a revocation list including the acquired revocation identifier associated with the content, and an output unit that outputs the revocation list.
First claim
Opening claim text (preview).
The invention claimed is: 1. A revocation list generation device for generating a revocation list, the revocation list generation device comprising: a non-transitory memory device that stores a program; and a processing device that executes the program to cause the revocation list generation device to perform: receiving, for a content, (i) a content identifier identifying the content, (ii) a revocation identifier identifying a revoked apparatus related to the content, and (iii…
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Classifications
Electricity · mapped topic
Electricity · mapped topic
- H04L9/3268Primary
Electricity · mapped topic
- H04L9/0891Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9178702B2 cover?
- Provided is a revocation list generation device that can suppress an increase in the amount of data of a revocation list. A revocation list generation device that generates a revocation list includes an acquisition unit that acquires, for a content, a revocation identifier identifying a revoked public key certificate allocated to an apparatus related to use of the content, a revocation list gen…
- Who is the assignee on this patent?
- Kozuka Masayuki, Yamaguchi Takahiro, Nakano Toshihisa, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification H04L9/3268. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).