Title:
METHOD AND APPARATUS FOR DETERMINING MAIN CHAIN OF BLOCKCHAIN, DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/210711
Kind Code:
A1
Abstract:
A method and apparatus for determining a main chain of a blockchain, a device, and a storage medium. The method comprises: determining, on the basis of a detection result that it is detected that a blockchain has at least two fork chains, weights of blocks in the fork chains (110); determining, on the basis of the weights of the blocks comprised in the fork chains, the weights of the fork chains (120); and determining a main chain from the fork chains on the basis of the weights of the fork chains, and rolling back the fork chains except for the main chain (130). By determining a main chain from fork chains on the basis of the weights of the fork chains, the problem of malicious discarding of a tail block of a previous block generation node during a block generation node switching process is avoided to a certain extent, the costs for a malicious attack to a block generation node are increased, and the success rate of a malicious attack is reduced.
Inventors:
XIAO WEI (CN)
Application Number:
PCT/CN2019/072335
Publication Date:
November 07, 2019
Filing Date:
January 18, 2019
Export Citation:
Assignee:
BAIDU ONLINE NETWORK TECHNOLOGY BEIJING CO LTD (CN)
International Classes:
G06Q20/38
Foreign References:
| CN108647963A | 2018-10-12 | |||
| CN105931052A | 2016-09-07 | |||
| CN105931052A | 2016-09-07 | |||
| CN107507006A | 2017-12-22 | |||
| US20180089683A1 | 2018-03-29 | |||
| CN106530088A | 2017-03-22 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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