Invention Grant
- Patent Title: Security policy for device data
- Patent Title (中): 设备数据的安全策略
-
Application No.: US13370232Application Date: 2012-02-09
-
Publication No.: US09245143B2Publication Date: 2016-01-26
- Inventor: Dustin Michael Ingalls , Nathan J. Ide , Christopher R. Macaulay , Octavian T. Ureche , Michael J. Grass , Sai Vinayak , Preston Derek Adam
- Applicant: Dustin Michael Ingalls , Nathan J. Ide , Christopher R. Macaulay , Octavian T. Ureche , Michael J. Grass , Sai Vinayak , Preston Derek Adam
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Agent Timothy Churna; Kate Drakos; Micky Minhas
- Main IPC: G06F21/00
- IPC: G06F21/00 ; G06F21/62 ; G06F21/88

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.
Public/Granted literature
- US20130212367A1 Security Policy for Device Data Public/Granted day:2013-08-15
Information query