Brevet : EP2343851 - MÉTHODE D'AUTHENTIFICATION D'UN RÉSEAU, SYSTEM ET APPAREIL CLIENT CORRESPONDANT

Titre

MÉTHODE D'AUTHENTIFICATION D'UN RÉSEAU, SYSTEM ET APPAREIL CLIENT CORRESPONDANT

N° et date de publication de la demande

EP2343851 - 13/07/2011

Type de la demande

A1

N° et date de dépôt

EP09823030.3 - 11/09/2009

N° et date de priorité

CN200810217107 - 27/10/2008

Famille de brevets

CN101729513A ; EP2343851A1 ; WO2010048838A1 ; US2013219467A1 ; US2011202972A1

Abrégé

A network authentication method, a method for a client to request authentication, a client, and a device are provided. The method includes: receiving synchronize (SYN) data sent by a client, where the SYN data includes a sequence number SEQ1 and a network parameter; sending synchronize acknowledge (SYN_ACK) data to the client in response to the SYN data, where the SYN_ACK data includes an acknowledgment number ACK2, and the value of ACK2 is a value obtained by carrying out a function transformation according to the network parameter of the SYN data; receiving RESET (RST) data sent by the client in response to the SYN_ACK data, where the RST data includes a sequence number SEQ3 or an acknowledgment number ACK3, and the value of SEQ3 or ACK3 is the same as that of ACK2, and the RST data further includes a network parameter the same as that of the SYN data; carrying out the function transformation according to the network parameter of the RST data to obtain a check value CHK; and passing the authentication of the client if CHK matches SEQ3 or ACK3. Therefore, the occupation of storage resources is reduced.