Method and apparatus for protecting proprietary decryption keys for programmable logic devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 7, 2006
Grant Date -
N/A
app pub date -
Mar 29, 2002
filing date -
Mar 29, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Described are methods and circuits of programming a programmable logic device with encrypted configuration data using one or more secure decryption keys. Configurable resources within PLDS in accordance with one embodiment are divided into first and second collections of configurable interconnect resources separated by a collection of switches. One collection of resources has access to one or more decryption keys required to decrypt the encrypted configuration data. The switches protect the proprietary keys by providing a secure boundary around the portion granted key access during the decryption process. Closing the switches after configuration clears user memory to prevent users from accessing stored versions of the proprietary keys.
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