公开(公告)号：US11825001B2

公开(公告)日：2023-11-21

申请号：US17918890

申请日：2021-09-02

Applicant: CHINA UNIONPAY CO., LTD.

Inventor： Zhenyao Qiu ,  Yang Yang ,  Zhou Chen ,  Zili Huang ,  Lu Xiong

IPC: H04L9/00 ,  H04L9/30 ,  H04L9/32

CPC classification number: H04L9/50 ,  H04L9/30 ,  H04L9/3271

Abstract: A blockchain based numerical value ranking method includes: using, by a first participant, a public key of the first participant to encrypt a private value of the first participant to obtain an encrypted text of the first participant; obtaining encrypted texts of other participants, and generating a challenge value having a preset bit length; based on the challenge value and the private value of the first participant, and the encrypted texts and public keys of the other participants, determining mixed results of the first participant with respect to the other participants; and determining a numerical value ranking result between the first participant and a second participant based on the mixed result of the second participant with respect to the first participant.