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:
Jun. 07, 2022
Filed:
Jun. 14, 2021
Advanced New Technologies Co., Ltd., Grand Cayman, KY;
Changzheng Wei, Hangzhou, CN;
Ying Yan, Hangzhou, CN;
Boran Zhao, Hangzhou, CN;
Xuyang Song, Hangzhou, CN;
Advanced New Technologies Co., Ltd., Grand Cayman, KY;
Abstract
Disclosed herein are methods, systems, and apparatus, for securely executing smart contract operations in a trusted execution environment (TEE). One of the methods includes establishing, by a key management (KM) TEE of a KM node, a trust relationship with a plurality of KM TEEs in a plurality of KM nodes based on performing mutual attestations with the plurality of KM TEEs; initiating a consensus process with the plurality of KM TEEs for reaching consensus on providing one or more encryption keys to a service TEE of the KM node; in response to reaching the consensus with the plurality of KM TEEs, initiating a local attestation process with a service TEE in the KM node; determining that the local attestation process is successful; and in response to determining that the local attestation process is successful, providing one or more encryption keys to the TEE executing on the computing device.