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. 22, 2022
Filed:
Aug. 12, 2019
Alibaba Group Holding Limited, Grand Cayman, KY;
Yingfang Fu, Beijing, CN;
Alibaba Group Holding Limited, George Town, KY;
Abstract
Key processing methods and apparatuses, storage media, and processors are disclosed. A method includes: a security chip receiving a dynamic measurement request for a cryptographic operation; and the security chip generating a child key of a platform measurement root key based on the platform measurement root key and a random number, wherein the child key of the platform measurement root key is used for encrypting a loading process and an execution process measured by a dynamic measurement module, and the dynamic measurement module is a module used for measuring a firmware that performs cryptographic operations. The present disclosures solves the technical problems that existing key processing methods cannot guarantee the integrity of cryptographic operation algorithm firmware and the credibility of cryptographic operation execution environments during a cryptographic operation process.