Secure data access methods and apparatus
US8464069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2007 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Jan 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1458
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.