Patent ID: 9325694
Filing Date: 2016-04-26
CPC Classification: H04L,H04M

Claim Text:
1. An anonymous entity authentication method, comprising the steps of: an entity B sending a first message to an entity A to initiate an authentication process; the entity A sending a second message to a trusted third party TP, wherein the second message comprises an identity I the trusted third party TP verifying the group GA against I the entity A sending a fourth message to the entity B upon reception of the third message, wherein the fourth message comprises IGA and a second token comprising Res the entity B verifying the fourth message upon reception of the fourth message and determining from a verification result the legality of the entity A, wherein the entity B verifying the fourth message and determining from the verification result in the legality of the entity A further comprises: a) the entity B verifying whether the signature of the trusted third party TP is valid and determining whether a random number R b) if the entity B determines from Res c) the entity B obtaining a public key of the group GA by I