29-08-2013 дата публикации
Номер: US20130227289A1
An anonymous entity authentication method includes the steps of: an entity B sending RB and IGB; an entity A sending RB, R′A, IGA and IGB to a trusted third party TP, the trusted third party TP checking a group GA and a group GB against IGA and IGB for legality; the trusted third party TP returning ResGA, ResGB and a token TokenTA or returning ResGA, ResGB, TokenTA and TokenTA to the entity A; the entity A sending TokenAB and IGA to the entity B for authentication by the entity B; and the entity B sending TokenBA to the entity A for authentication by the entity A. In this solution, anonymous entity authentication can be performed without passing identity information of the authenticated entity itself to the opposite entity. Furthermore this solution further relates to an anonymous entity authentication apparatus and a trusted third party. 1. An anonymous entity authentication method , comprising the steps of:{'b': '1', 'an entity B sending a message to an entity A to initiate an authentication process;'}{'b': 2', '2, 'sub': 'GA', 'the entity A sending a message to a trusted third party TP, wherein the message comprises an identity Iof a group GA where the entity A resides;'}{'sub': GA', 'GA, 'b': 2', '3', '3, 'the trusted third party TP verifying the group GA against Ifor legality upon reception of the message ; and returning a message to the entity A, wherein the message comprises a verification result Resof the group GA and a first token comprising a signature of the trusted third party TP;'}{'b': 4', '3', '4, 'sub': GA', 'GA, 'the entity A sending a message to the entity B upon reception of the message , wherein the message comprises Iand a second token comprising Res, the first token and a signature of the entity A; and'}{'b': 4', '4, 'the entity B verifying the message upon reception of the message and determining from a verification result the legality of the entity A.'}234. The anonymous entity authentication method according to claim 1 , wherein after the ...
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