Title:
PRIVATE KEY MANAGEMENT METHOD AND APPARATUS IN BLOCKCHAIN SCENARIO, AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/218919
Kind Code:
A1
Abstract:
The present application provides a computer system. A rich execution environment (REE) and a trusted execution environment (TEE) are deployed in the computer system; a blockchain technology-based blockchain functional unit is further deployed in the computer system, and a private key management module and a transaction data processing module in the blockchain functional unit are deployed in the TEE, wherein the private key management module is used for creating a private key and storing same in the TEE, and the transaction data processing module is used for encrypting digest data involved in the blockchain functional unit by using the private key. By placing the private key involved in the blockchain scenario at a TEE side for creating, storing, and using, the security of the private key is ensured by means of the TEE of a TrustZone architecture, and the security risk problem caused by the private key in an untrusted environment is solved to some extent, thereby improving the security of a blockchain system.
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Inventors:
WEN BAILIN (CN)
Application Number:
PCT/CN2019/086111
Publication Date:
November 21, 2019
Filing Date:
May 09, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L9/08; H04L29/06; G06Q20/38
Domestic Patent References:
| WO2018058441A1 | 2018-04-05 |
Foreign References:
| CN106850200A | 2017-06-13 |
Other References:
MIRAJE GENTILAL: "Trustzone-backed Bitcoin Wallet", CS 2 '17 PROCEEDINGS OF THE FOURTH WORKSHOP ON CRYPTOGRAPHY AND SECURITY IN COMPUTING SYSTEMS, 24 January 2017 (2017-01-24), pages 25 - 28, XP058317237
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