Title:
METHOD AND DEVICE FOR CONDUCTING ENCRYPTED TRANSACTION BASED ON SMART CONTRACT, AND BLOCKCHAIN
Document Type and Number:
WIPO Patent Application WO/2019/007396
Kind Code:
A1
Abstract:
Disclosed is a method for conducting an encrypted transaction based on a smart contract. The method comprises: executing a transaction based on a smart contract, wherein the states of the smart contract before and after the execution of the transaction are respectively a first state and a second state; each relevant node verifying a change, from the first state to the second state, in the state of the smart contract, and returning a signature if verification is passed; and other nodes verifying the signature of each relevant node, and returning verification pass information if verification is passed. In the embodiments of the present invention, all nodes participating in consensus are divided into relevant nodes relevant to a smart contract and other non-relevant nodes irrelevant to the smart contract; and whether a change in the state of the smart contract conforms to a corresponding transaction is verified only within the range of each relevant node, and the other non-relevant nodes indirectly verify, by means of checking the signature of each relevant node, whether the change in the state of the smart contract conforms to a corresponding transaction, thereby not only reaching a consensus on a change in the state of the smart contract within the range of all the nodes, but also protecting private data.
Inventors:
MA HUANYU (CN)
WU XIAOCHUAN (CN)
LI XUEFENG (CN)
WU XIAOCHUAN (CN)
LI XUEFENG (CN)
Application Number:
PCT/CN2018/094659
Publication Date:
January 10, 2019
Filing Date:
July 05, 2018
Export Citation:
Assignee:
ZHONGAN INFORMATION TECH SERVICE CO LTD (CN)
International Classes:
H04L29/08; G06Q40/00
Foreign References:
| CN106603698A | 2017-04-26 | |||
| CN107425982A | 2017-12-01 | |||
| CN106656974A | 2017-05-10 | |||
| CN106408299A | 2017-02-15 | |||
| CN106874393A | 2017-06-20 | |||
| CN105976231A | 2016-09-28 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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