Data protection method and corresponding decoding module
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 3, 2007
app pub date -
Aug 22, 2006
filing date -
Oct 31, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A data protection method and its corresponding decoding module applicable in a digital broadcast system with a subscription mechanism are provided. The data protection method includes an encoding mechanism and a decoding mechanism. The encoding mechanism first encodes broadcast data using a first key and encodes the first key with a second key. The second key is generated from a plurality of keys provided by the encoding mechanism based on an operation rule. The decoding mechanism includes, after verifying usage right of the receiving end, performing decoding using the second key to obtain the first key for the encoded broadcast data; and decoding the encoded broadcast data using the first key, thereby enhancing data security and reducing risks of malicious acquirement of the digital broadcast data.
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