Nestable skeleton decryption keys for digital rights management
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 15, 2008
Grant Date -
N/A
app pub date -
Oct 9, 2001
filing date -
Oct 9, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A document access control scheme uses digital 'skeleton keys' to distribute access permissions for encrypted documents in a manner that does not require that rights management files (RMFs) be associated with each document. Multiple skeleton keys can be issued for the same document. The skeleton keys themselves can be opened by one or more other skeleton keys for different levels of document access.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully