Anonymous voucher verification method and device

The invention provides an anonymous certificate verification method and device, and relates to the technical field of block chains, and the method comprises the steps: receiving an access strategy of an application service provider; judging whether a verifiable certificate corresponding to the user attribute is lacked or not; if not, sending the user anonymous public key and a Merkel tree root generated by all attribute data of the user to a trusted authorization mechanism together to request to issue a verifiable certificate; receiving a verifiable certificate of the trusted authorization mechanism; user signature is carried out by using the use member list, and a to-be-verified certificate containing to-be-verified user attributes is sent to an application service provider for verification; and if not, user signature is directly carried out, and the to-be-verified certificate is sent to an application service provider for verification. Through Merkel tree path verification, credible verification can be carr