Certifying and key consulting method and its device based on TTP

Abstract

The method comprises: a) the service subscriber generates a first parameter used in generating a session key, and sends a service request containing the first parameter to the entity authentication center; b) according to the content of the request, the entity authentication center relays the service requested in the service request to its corresponding service provider; c) the service provider generates a second parameter used in generating a session key, and sends a service confirmation containing the second parameter to the entity authentication center; d) with the first and second parameters, the service provider uses a predetermined algorithm to generate a session key; e) the entity authentication center relays the service confirmation to the service subscriber; f) after receiving the service confirmation, with the first and second parameters, the service subscriber uses a predetermined algorithm to calculate a session key.

Description

technical field [0001] The present invention relates to the field of wireless communication, more specifically, to a TTP-based authentication and key agreement method and device thereof for wireless network end-to-end communication security. Background technique [0002] In end-to-end communication of wireless network services, in order to protect communication content, a communication authentication scheme has been developed. The method for end-to-end communication authentication of wireless network services in the related art will be described below with reference to FIG. 1 . [0003] FIG. 1 is a schematic diagram of an end-to-end communication authentication framework 100 in a related art wireless mobile network. This framework is applicable to different mobile network standards, and its role is to establish mutual trust relationships between different types of entities. A truly universal authentication framework. In addition to the three types of business entities invo...

AI Technical Summary

Problems solved by technology

[0031] However, as can be seen from the above description, the Diffie-Hellman key exchange protocol cannot resist the following "man-in-the-middle" attack:

Images