ENTITY BIDIRECTIONAL AUTHENTICATION METHOD BY INTRODUCING AN ONLINE THIRD PARTY

• Main Authors: XIAO YUELEI, HUANG ZHENHAI, LAI XIAOLONG, CAO JUN, TIE MANXIA
• Format: Patent
• Language: English; Korean
• Published: 23.05.2012
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

An entity bidirectional authentication method by introducing an online third party includes the following steps: 1) an entity B sends a message 1 to an entity A; 2) after receiving the message 1, the entity A sends a message 2 to a trusted third party TP ; 3) after receiving the message 2, the trusted third party TP verifies the validities of the entity A and the entity B; 4) after verifying the validities of the entity A and the entity B , the trusted third party TP returns a message 3 to the entity A; 5) after receiving message 3, the entity A sends a message 4 to the entity B ; 6) after receiving the message 4, the entity B performs the verification to complete the authentication for the entity A; 7) the entity B sends a message 5 to the entity A; 8) after receiving the message 5, the entity A performs the verification to complete the authentication for the entity B. The scheme mentioned above provides an online searching and authentication mechanism for the disclosed keys, and thus simplifies the running condition of the protocol. In the practical application, the bidirectional authentication method of the present invention enables the bidirectional validity authentication between the user and the network.