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:
Oct. 21, 2025
Filed:
Jan. 17, 2024
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Saurav Sinha, Kirkland, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Techniques are described herein that are capable of renewing a signed attestation artifact with limited usage of a trusted platform module (TPM). Based on initiation of a cold boot of a host, attestation artifacts are received from the host. The attestation artifacts prove trust in a trusted execution environment (TEE) that runs on the host. The attestation artifacts include a public portion of an ephemeral cryptographic key (ECKeyPub), a public portion of a signing key (SKeyPub), and a signed key claim. The attestation artifacts are validated, and a signed attestation artifact, which includes the ECKeyPub and the SKeyPub, is generated and provided to the host. Based on a request to renew the signed attestation artifact including the signed attestation artifact, which includes the ECKeyPub and the SKeyPub, and further based on the TEE possessing the ephemeral cryptographic key, the signed attestation artifact is renewed during the cold boot session.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile