Title:
SMART CONTRACT BASED PRIVACY DATA QUERY METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/088548
Kind Code:
A1
Abstract:
One or more embodiments of the present description provide a smart contract based privacy data query method and apparatus. The method is applied to a blockchain node, and comprises: when receiving a query transaction for target privacy data initiated by a query party, reading a transaction identifier of a historical transaction relevant to the target privacy data and contained in the query transaction; obtaining the historical transaction according to the transaction identifier, and based on the historical transaction, determining a service contract called by the historical transaction; executing authority control codes defined in the service contract to determine a query authority of the query party for the target privacy data; and when the determined query authority is query allowed, obtaining the decoded target privacy data for viewing by the query party, the target privacy data being read into a trusted execution environment for decoding.
Inventors:
LIU QI (CN)
YAN YING (CN)
YAN YING (CN)
Application Number:
PCT/CN2020/116990
Publication Date:
May 14, 2021
Filing Date:
September 23, 2020
Export Citation:
Assignee:
ANT BLOCKCHAIN TECH SHANGHAI CO LTD (CN)
International Classes:
G06F16/2458
Domestic Patent References:
| WO2018205137A1 | 2018-11-15 |
Foreign References:
| CN110580262A | 2019-12-17 | |||
| CN110060162A | 2019-07-26 | |||
| CN109523385A | 2019-03-26 | |||
| CN110008735A | 2019-07-12 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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