METHOD AND DEVICE FOR ANONYMOUS ENTITY IDENTIFICATION

摘要

The present invention discloses a method for anonymous entity identification, which comprises the following steps: an entity A transmits an R A and an I GA to an entity B; the entity B returns an R B , an I GB and a TokenBA to the entity A; the entity A sends an R A ', the R B , the I GA and the I GB to a credible third-party TP; the credible third-party TP checks the validity of a first group and a second group according to the I GA and the I GB ; the credible third-party TP returns an RES GA , an RES GB , and a TokenTA to the entity A, or returns the RES GA , the RES GA , a TokenTA1 and a TokenTA2 to the entity A, and the entity A performs a verification after receiving them; the entity A sends a TokenAB to the entity B, and the entity B performs the verification after receiving it. In the present invention, there is no need to send the identity information of the entity to be identified to an opposite terminal, so that anonymous identity identification is realized.