- 专利标题: INFORMATION VERIFICATION METHOD AND APPARATUS
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申请号: EP22810634.0申请日: 2022-05-26
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公开(公告)号: EP4350556A1公开(公告)日: 2024-04-10
- 发明人: DI, Gang , GAO, Yang , HE, Mengwei , QIAN, Youcai , CHENG, Mingyu
- 申请人: Digital Currency Institute, The People's Bank of China
- 申请人地址: CN Beijing 100071 Floor 20, Building A, Jintang Center 18 Fengtai North Road, Fengtai District
- 代理机构: Casalonga
- 优先权: CN202110585056 20210527
- 国际公布: WO2022247910 20221201
- 主分类号: G06F21/60
- 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.
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