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);
Sahil S. Chavan, Redmond, WA (US);
Deyang Gu, Mercer Island, WA (US);
Lucius B. Fleuchaus, Redmond, WA (US);
Akshay Kishor Kulkarni, Redmond, WA (US);
David Nunez Tejerina, Redmond, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Technology is shown for establishing a chain of trust for an unknown root certificate in an isolated network that is verified using a chain of trust external to the network. A bootstrap executable and a leaf certificate rooted in the external chain of trust are configured with an OID. The leaf certificate is received in the isolated network and used to sign a new root certificate created in the isolated network to create a blob that is stored in a pre-determined location. The bootstrap executable is executed to instantiate a client machine, which retrieves the blob and verifies its signature using the leaf certificate. The client machine verifies that the OID values from the blob and bootstrap executable match. If the signature and OID checks are successful, then the new root certificate is distributed within the isolated network and installed in a PKI certificate chain of trust.