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.

Date of Patent:
Oct. 19, 2010

Filed:

Jun. 24, 2005
Applicants:

David B. Cross, Redmond, WA (US);

Kelvin S. Yiu, Seattle, WA (US);

Philip J. Hallin, Port Townsend, WA (US);

Ryan M. Hurst, Woodinville, WA (US);

Vishal Agarwal, Bothell, WA (US);

Inventors:

David B. Cross, Redmond, WA (US);

Kelvin S. Yiu, Seattle, WA (US);

Philip J. Hallin, Port Townsend, WA (US);

Ryan M. Hurst, Woodinville, WA (US);

Vishal Agarwal, Bothell, WA (US);

Assignee:

Microsoft Corporation, Redmond, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

An efficient protocol for retrieving cryptographic evidence may be selected by evaluating a local policy and a number of relevant factors. Furthermore, updated cryptographic evidence may be prefetched during a time period in which there is a low volume of requests for cryptographic evidence. This low volume time period may be defined, approximately, as an overlapping window in which both a first cryptographic evidence publication and a second cryptographic evidence publication are valid.


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