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:
Sep. 11, 2007
Filed:
Feb. 28, 2001
Michael Howard, Bellevue, WA (US);
Jason Garms, Woodinville, WA (US);
Michael Howard, Bellevue, WA (US);
Jason Garms, Woodinville, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
First and second computing devices are selectively operatively coupled together. The first device provides data to the second device. The second device can be a portable computing device. The second device is configured to encrypt/decrypt the data, as needed by the first device. The second device maintains the cryptographic key data internally. As such, the first device, which, for example, may be a personal computer will only maintain the returned encrypted data following encryption and only temporarily use any returned decrypted data. Thus, by physically and operatively distributing the cryptographic processing/maintenance between the two devices, additional security is provided for protecting private data.