METHOD AND SYSTEM FOR IDENTIFYING ANONYMOUS ENTITY

摘要

A method for identifying an anonymous entity includes the steps of: sending by an entity B an RB and an IGB; sending by an entity A an RB, an R'A, an IGA and an IGB to a trusted third party (TP); checking by the trusted third party (TP) the legality of groups GA and GB according to the IGA and IGB; returning by the trusted third party (TP) an ResGA, an ResGB and a token (TokenTA) or returning the ResGA, the ResGB, a TokenTAl and a TokenTA2 to the entity A; sending by the entity A a TokenAB and the IGA to the entity B which then verifies the same; sending by the entity B a TokenBA to the entity A which then verifies the same. In the present solution, there is no need to send the identity information of the identifying entity itself to the peer, thereby achieving anonymous entity identification. In addition, the present solution also relates to anonymous entity identification and trusted third party devices.