Title:
METHOD AND APPARATUS FOR QUERYING ACCOUNT PRIVACY INFORMATION IN BLOCKCHAIN
Document Type and Number:
WIPO Patent Application WO/2021/179743
Kind Code:
A1
Abstract:
Provided are a method and apparatus for querying account privacy information in a blockchain. The method may comprise: a blockchain node receiving a transaction initiated by a query party, wherein the transaction is used for acquiring privacy information contained in a privacy field in a target account, and the privacy information is encrypted and stored in the blockchain node; the blockchain node determining, according to permission management information recorded in a permission field in the target account, whether the query party has query permission; and insofar as a determination result indicates that the query party has query permission, the blockchain node reading the privacy information, which is in the form of ciphertext, in a trusted execution environment for decryption, so as to provide obtained privacy information in the form of plaintext to the query party.
Inventors:
LIU QI (CN)
YAN YING (CN)
WEI CHANGZHENG (CN)
YAN YING (CN)
WEI CHANGZHENG (CN)
Application Number:
PCT/CN2020/139745
Publication Date:
September 16, 2021
Filing Date:
December 26, 2020
Export Citation:
Assignee:
ALIPAY HANGZHOU INF TECH CO LTD (CN)
International Classes:
G06F16/2458
Foreign References:
| CN111008228A | 2020-04-14 | |||
| CN110580418A | 2019-12-17 | |||
| CN110046521A | 2019-07-23 | |||
| CN109831298A | 2019-05-31 | |||
| CN108616539A | 2018-10-02 | |||
| US20200026834A1 | 2020-01-23 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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