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. 07, 2011
Filed:
Jun. 23, 2006
Yuqun Chen, Bellevue, WA (US);
Zicheng Liu, Bellevue, WA (US);
Mariusz H. Jakubowski, Bellevue, WA (US);
Yacov Yacobi, Mercer Island, WA (US);
Yuqun Chen, Bellevue, WA (US);
Zicheng Liu, Bellevue, WA (US);
Mariusz H. Jakubowski, Bellevue, WA (US);
Yacov Yacobi, Mercer Island, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A network-based data protection scheme for a mobile device utilizes encryption techniques and a remote key server that stores encryption keys on behalf of the mobile device. The mobile device stores encrypted data, preferably having no unencrypted counterpart stored therewith. On an as-needed basis, the mobile device requests a decryption key (or an encrypted version of a decryption key) from the key server, where the decryption key can be used by the mobile device to decrypt the encrypted information. The key server transmits the decryption key to the mobile device after authenticating the user of the mobile device.