Title:
BLOCKCHAIN-BASED SERVICE DATA ENCRYPTION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/098365
Kind Code:
A1
Abstract:
Disclosed are a blockchain-based service data encryption method and apparatus, being applied to a blockchain comprising a key distributor node device and a key receiver node device. The method comprises: a key receiver node device acquiring a first derived key distributed by a key distributor node device, wherein the first derived key is derived and generated from a derived key of a key distributor based on a service data permission type of a key receiver, and the derived key can decrypt service data encrypted by the first derived key (102); encrypting the service data based on the first derived key to obtain encrypted service data (104); and sending the encrypted service data to a blockchain, so that the encrypted service data is consented to and verified by the blockchain and is then recorded in a distributed database of the blockchain (106).
Inventors:
LI SHUBO (CN)
ZHANG YIXIANG (CN)
ZHANG YIXIANG (CN)
Application Number:
PCT/CN2019/106017
Publication Date:
May 22, 2020
Filing Date:
September 16, 2019
Export Citation:
Assignee:
ALIBABA GROUP HOLDING LTD (CN)
International Classes:
H04L9/08
Foreign References:
| CN108768633A | 2018-11-06 | |||
| CN108667605A | 2018-10-16 | |||
| CN106055993A | 2016-10-26 | |||
| CN105681301A | 2016-06-15 | |||
| CN110033258A | 2019-07-19 |
Other References:
See also references of EP 3813292A4
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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