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:
Nov. 07, 2017
Filed:
Jan. 25, 2016
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Dustin Michael Ingalls, Carnation, WA (US);
Nathan J. Ide, Bothell, WA (US);
Christopher R. Macaulay, Seattle, WA (US);
Octavian T. Ureche, Bellevue, WA (US);
Michael J. Grass, Kenmore, WA (US);
Sai Vinayak, Tamilnadu, IN;
Preston Derek Adam, Woodinville, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Techniques for providing security policy for device data are described. In implementations, data on a device is stored in an encrypted form. To protect the encrypted data from being decrypted by an unauthorized entity, techniques enable a decryption key to be occluded if an attempt to gain unauthorized access to device data is detected. In implementations, a decryption key can be occluded in a variety of ways, such as by deleting the decryption key, overwriting the encryption key in memory, encrypting the encryption key, and so on. Embodiments enable an occluded decryption key to be recovered via a recovery experience. For example, a recovery experience can include an authentication procedure that requests a recovery password. If a correct recovery password is provided, the occluded decryption key can be provided.