Title:
METHOD FOR GENERATING RANDOM NUMBER SEEDS ON BLOCKCHAIN, AND SYSTEM AND CONSENSUS NODE
Document Type and Number:
WIPO Patent Application WO/2023/185051
Kind Code:
A1
Abstract:
A method for generating random number seeds on a blockchain, and a system and a consensus node. The method comprises: in a commit stage of PBFT, on the basis of a threshold signature algorithm, each consensus node signing, by using its own private key share, an original message, which includes a specific value of an original transaction list in the current consensus, so as to generate a signature share, and adding the signature share to a broadcast commit message; after having collected at least a threshold number of commit messages, each consensus node obtaining a complete signature by subjecting at least a threshold number of signature shares to a recovery function corresponding to the private key share, which is generated by using the threshold signature algorithm; and each consensus node obtaining random number seeds on the basis of the complete signature.
Inventors:
XU WENBO (CN)
LI KANG (CN)
RONG KANG (CN)
LI KANG (CN)
RONG KANG (CN)
Application Number:
PCT/CN2022/135437
Publication Date:
October 05, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
ANT BLOCKCHAIN TECH SHANGHAI CO LTD (CN)
International Classes:
H04L9/08
Foreign References:
| CN114884652A | 2022-08-09 | |||
| US20210256011A1 | 2021-08-19 | |||
| CN113642019A | 2021-11-12 |
Attorney, Agent or Firm:
CHISPO ATTORNEYS AT LAW (CN)
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