公开(公告)号：EP4350556A1

公开(公告)日：2024-04-10

申请号：EP22810634.0

申请日：2022-05-26

申请人： Digital Currency Institute, The People's Bank of China

发明人： DI, Gang ,  GAO, Yang ,  HE, Mengwei ,  QIAN, Youcai ,  CHENG, Mingyu

IPC分类号： G06F21/60 ,  G06F21/64 ,  G06F21/62

摘要： The present invention relates to the technical field of computers, and discloses an information verification method and apparatus. A implementation of the method includes: constructing a constraint set of a zero-knowledge proof circuit, wherein the constraint set includes a range attribute verification condition; receiving a verifiable representation, using the verifiable representation as a secret input of the zero-knowledge proof circuit, and generating a personal information credential by means of the zero-knowledge proof circuit, wherein the verifiable representation is generated according to personal information to be verified; and in response to receiving decentralized identity information and a threshold value, which are sent by a verification system of a personal information credential, using the decentralized identity information and the threshold value as public inputs of the zero-knowledge proof circuit, and verifying, by the zero-knowledge proof circuit, whether the personal information credential satisfies the constraint set. By means of the implementation, sensitive information during user information verification can be protected while maintaining a decentralized identity system, thereby avoiding directly showing plaintext of real information of a user, and the verification efficiency is high.