Patent ID: 8972734
Filing Date: 2015-03-03
Classification: H04L

Abstract:
1. A symmetric dynamic authentication and key exchange system, comprising: a client, for obtaining initial authentication information to generate first one-time temporary authentication information, a conference key and a standby identity identifier; and a server, connected to the client through a network after obtaining the initial authentication information at the same time as the client, for obtaining the initial authentication information of the client, the conference key, the first one-time temporary authentication information and the standby identity identifier, so as to perform a dynamic authentication program, wherein the server compares the initial authentication information of the client with the conference key to confirm an identity of the client, and then updates the initial authentication information of the server according to the first one-time temporary authentication information, the server is enabled to have the first one-time temporary authentication information the same as that of the client, and the server is enabled to generate second one-time temporary authentication information comprising the standby identity identifier according to the first one-time temporary authentication information and the initial authentication information.