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. 19, 2013
Filed:
Jan. 26, 2007
Tolga Acar, Sammamish, WA (US);
Carl M. Ellison, Seattle, WA (US);
Tolga Acar, Sammamish, WA (US);
Carl M. Ellison, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A Universal Serial Bus (USB) compatible storage device is utilized as a security token for storage of cryptographic keys. A cryptographic subsystem of a processor accesses cryptographic keys in containers on the USB compatible storage device. Accessing includes storing and/or retrieving. The processor does not include an infrastructure dedicated to the USB compatible storage device. Cryptographic key storage is redirected from an in-processor container to the USB compatible storage device. No password or PIN is required to access the cryptographic keys, yet enhanced security is provided. Utilizing a USB compatible storage device for a cryptographic key container provides a convenient, portable, mechanism for carrying the cryptographic key, and additional security is provided via physical possession of the device.