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:
Jul. 21, 2009
Filed:
Jan. 14, 2005
Jamie Hunter, Bothell, WA (US);
Paul England, Bellevue, WA (US);
Russell Humphries, Redmond, WA (US);
Stefan Thom, Snohomish, WA (US);
James Anthony Schwartz, Jr., Seattle, WA (US);
Kenneth D. Ray, Seattle, WA (US);
Jonathan Schwartz, Kirkland, WA (US);
Jamie Hunter, Bothell, WA (US);
Paul England, Bellevue, WA (US);
Russell Humphries, Redmond, WA (US);
Stefan Thom, Snohomish, WA (US);
James Anthony Schwartz, Jr., Seattle, WA (US);
Kenneth D. Ray, Seattle, WA (US);
Jonathan Schwartz, Kirkland, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Systems and methods for controlling access to data on a computer with a secure boot process can provide a highly efficient mechanism for preventing future access to encrypted digital resources. This may be advantageous in a range of scenarios, for example where a computer is sold and assurance is desired that no stray private data remains on the hard disk. Data resources, for example all data associated with one or more particular hard disk partitions, may be encrypted. The decryption key may be available through a secure boot process. By erasing, altering, or otherwise disabling a secret, such as a decryption key or a process that obtains a decryption key, the data formerly accessible using such secret becomes inaccessible.