Title:
DECENTRALIZED TRUST-BASED TEE STATE CONTINUITY PROTECTION METHOD UNDER PUBLIC CLOUD
Document Type and Number:
WIPO Patent Application WO/2024/050869
Kind Code:
A1
Abstract:
Disclosed in the present invention are a decentralized trust-based TEE state continuity protection method and system under a public cloud, an intelligent terminal, and a storage medium. The method comprises: initializing a state service instance on the basis of a blockchain; updating a state request of an application program instance on the basis of encrypted transmission and a session key; controlling the application program instance to read the latest state thereof stored in the state service instance; when the state service instance is restarted, recovering the state of the state service instance on the basis of the session key; and when the application program instance is restarted, recovering the state of the application program instance on the basis of sealed state data of an operating system. According to the present invention, the dependence on a centralized trusted entity is eliminated by using the blockchain, and depending only on the blockchain for initialization improves the state updating and reading speeds.
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Inventors:
ZHANG YINQIAN (CN)
PENG WEI (CN)
NIU JIANYU (CN)
PENG WEI (CN)
NIU JIANYU (CN)
Application Number:
PCT/CN2022/119945
Publication Date:
March 14, 2024
Filing Date:
September 20, 2022
Export Citation:
Assignee:
UNIV SOUTHERN SCI & TECH (CN)
International Classes:
G06F21/57; H04L9/28
Domestic Patent References:
| WO2018104326A1 | 2018-06-14 |
Foreign References:
| US20190220603A1 | 2019-07-18 | |||
| CN114117522A | 2022-03-01 | |||
| CN114547656A | 2022-05-27 | |||
| CN114826684A | 2022-07-29 |
Attorney, Agent or Firm:
JOHNSON INTELLECTUAL PROPERTY AGENCY (SHENZHEN) (CN)
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