System and method for secure firmware update of a secure token having a flash memory controller and a smart card
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 25, 2014
Issued Date -
N/A
app pub date -
Nov 12, 2007
filing date -
Nov 12, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system and method of operating a device to securely update the control firmware controlling the device. Downloading a firmware update package to a first microcontroller of the device. Determining a firmware update portion and an encrypted hash portion of the firmware update package wherein the encrypted hash portion is cryptographically signed by a signatory. Confirm that the encrypted hash portion conforms to the firmware update by independently computing the hash of the encrypted firmware update portion on the first microcontroller and comparing that value to the signed hash. Other systems and methods are disclosed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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