Blank electronic credential generation and blank electronic credential public verification methods, devices and system

The invention discloses blank electronic credential generation and blank electronic credential public verification methods, devices and system. The blank electronic credential generation method comprises the following steps: generating first electronic credential information at least according to electronic credential face information among preset electronic credential face information, the public key of an electronic credential accrediting party and the name of the electronic credential accrediting party; using a first signature algorithm and the private key of an electronic credential issuing authority to sign the first electronic credential information to get the signature of the issuing authority; and generating a blank electronic credential according to the first electronic credential information, the public key of the electronic credential issuing authority and the signature of the issuing authority. The anti-counterfeiting property of electronic credentials is enhanced. Mixed use and illegal use of ele