The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2013
Filed:
Feb. 05, 2007
Lawrence L. Case, Phoenix, AZ (US);
Thomas Tkacik, Phoenix, AZ (US);
Lawrence L. Case, Phoenix, AZ (US);
Thomas Tkacik, Phoenix, AZ (US);
Freescale Semiconductors, Inc., Austin, TX (US);
Abstract
Embodiments include systems and methods for securely accessing data in the context of a data transaction. A system may include a memory block, within which a memory partition may be allocated to the data transaction. The memory partition includes a data storage block and at least one binding register. The system also includes platform entities and an access control block, which determines whether a particular platform entity may access data within the data storage block, and whether a particular platform entity may write binding information into a binding register. Access also may be granted or denied based on the current state of a state machine associated with the data transaction. The system also includes a cipher/binding function adapted to encrypt the data, using the binding information, for storage on an unsecured memory device, and to decrypting encrypted data, using the binding information, which is retrieved from the unsecured memory device.