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. 12, 2024
Filed:
Jan. 26, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Pu Liu, Carnation, WA (US);
Yingchang Charley Zhang, Redmond, WA (US);
Akshay Kishor Kulkarni, Redmond, WA (US);
Deyang Gu, Mercer Island, WA (US);
Lucius B. Fleuchaus, Redmond, WA (US);
Phililp Joseph Hallin, Port Townsend, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Technology is shown for verifying a leaf certificate in a PM chain of trust involving receiving a leaf certificate signed by an intermediate certificate embedded in the leaf certificate. The intermediate certificate is extracted from the received leaf certificate and its public key used to calculate a signature for the received leaf certificate. The calculated signature is compared to a signature included in the received leaf certificate. The received leaf certificate is verified when the calculated signature matches the signature included in the received leaf certificate. The intermediate certificate can be included as a X.509 property of the leaf certificate.