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:
Feb. 17, 2026
Filed:
Dec. 24, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Justin David Brown, Seattle, WA (US);
Luke J. Lenhart, Woodinville, WA (US);
Chong He, Redmond, WA (US);
Kedar Hirve, Kent, WA (US);
Ankur Choudhary, Vancouver, CA;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A software-based authentication protocol enables a client to be authenticated by a server through a host. The authentication protocol involves using mutable authentication data that changes to deter counterfeiters from making clones of authentic clients. The host requests a token from the client as proof of authenticity. The client establishes a communication channel to the server using the host as a communication proxy. The client presents mutable authentication data to the server. If the server determines that the mutable authentication data is outdated, then the client is deemed a counterfeit. If the server determined that the mutable authentication data is the latest version, then the client is deemed authentic and a token is issued to the client. Depending on a set of policies, the server changes the mutable authentication data and sends the new mutable authentication data to the client but not to counterfeit clients.