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:
Mar. 15, 2011
Filed:
Aug. 18, 2005
Kristin E. Lauter, La Jolla, CA (US);
Brian A. Lamacchia, Bellevue, WA (US);
Anton Mityagin, La Jolla, CA (US);
Kristin E. Lauter, La Jolla, CA (US);
Brian A. LaMacchia, Bellevue, WA (US);
Anton Mityagin, La Jolla, CA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Key confirmed (KC) authenticated key exchange (AKE) with derived ephemeral keys protocol using a mathematical group is described. In one aspect, a first party, using the mathematical group, determines whether a second party has received information to compute an agreed session key value for exchanging information securely with the first party. At least a subset of the received information is computed using derived ephemeral keys of the first and second parties. The first party generates the agreed session key value only when the second party has demonstrated receipt of the information.