Method and system for transmitting key information, transmitting end and receiving end

Abstract

The invention discloses a transmitting method and a transmitting system suitable for key information such as the public key of a wireless delay tolerant network in which people are involved, and the like, and can ensure safety when a node uses the public key of an opposite side. The public key or other key information of the node is transmitted through a wireless broadband communication channel, corresponding authentication information is transmitted through an artificial narrowband communication channel, and the information transmitted in two ways is compared at a receiving end, so that the reliability of key information transmission can be ensured. The key information transmitting technology realized by the invention is also suitable for the updating of the public keys and the application of abolished information or public key multi-node forwarding.

Description

Key information transmission method and system, sending end and receiving end technical field The present invention relates to the field of wireless communication networks, in particular to a wireless delay-tolerant network key information transfer method and system, and a sending end and a receiving end for transferring key information. Background technique Delay Tolerant Network (DTN) is a store, carry, and forward network. Its network nodes may be constantly moving, the network connection is intermittent, and the radio frequency range of the nodes is very limited. The network nodes can only exchange data with each other at the moment when the nodes meet. In order to speed up the transmission of network data packets, the DTN routing protocol makes full use of the mobility characteristics of network nodes, stipulating that each node in the delay-tolerant network is both a network terminal and a network router, and that nodes in the delay-tolerant network both receive and...

AI Technical Summary

Problems solved by technology

The data bundle security protocol specification (BundleSecuritySpecification) of the delay-tolerant network has designed a method to protect data integrity and data confidentiality, but it does not provide a distribution method for initial secret information between nodes

Therefore additional procedures are required to implement key management in delay-tolerant nets

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