System and method for establishing session key between nodes

A technology of session key and establishment method, which is applied in the field of network communication, and can solve problems such as complex allocation and update process, increased packet delay, and large calculation burden

Active Publication Date: 2011-02-02
CHINA IWNCOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This security measure brings a huge computational burden to the switching devices in the LAN, which is easy to cause attackers to attack the switching devices; and the delay of data packets from the sending node to the destination node will also increase, reducing network transmission. efficiency
[0004] The topology of wired LAN is relatively complex, and the number of nodes involved (here, terminal

Method used

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  • System and method for establishing session key between nodes
  • System and method for establishing session key between nodes

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Embodiment Construction

[0066] In the network, all connection devices have established a secure connection with the core connection device SW-Center in the network through pre-distribution or other security mechanisms, that is, they already have a shared key; all terminal devices only communicate with adjacent The connected devices have established a secure connection through pre-distribution or other security mechanisms, that is, they already have a shared key (the establishment mechanism of the secure connection described here is not limited or defined in the present invention).

[0067] Taking the establishment of a session key between the first terminal device STA-A and the second terminal device STA-B as an example for illustration, SW Center It is the core connection device in the network. The first connection device SW1 refers to the first connection device through which the data packets from the first terminal device STA-A to the second terminal device STA-B pass through, and the second connec...

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Abstract

The invention provides a system and a method for establishing a session key between nodes. In the method, a key can be flexibly established and updated between LAN (local area network) legal nodes so as to establish secure connection therebetween. The system comprises a terminal device and a connection device, wherein the terminal device comprises an initiator terminal device and a receiver terminal device; and the connection device comprises a core connection device, an initiator connection device on a link between the initiator terminal device and the core connection device and a receiver connection device on a link between the receiver terminal device and the core connection device. The establishing process is flexible, the establishment of the session key between the nodes can be realized without configuration participation of a user, and the confidentiality of communication between subsequent nodes is guaranteed.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a system and method for establishing session keys between nodes. Background technique [0002] The wired LAN is generally a broadcast network, and the data sent by one node can be received by other nodes. All nodes on the network share the channel, which brings great security risks to the network. As long as the attacker accesses the network to monitor, he can capture all the data packets on the network. [0003] The local area network LAN defined by the existing national standard GB / T 15629.3 (corresponding to IEEE 802.3 or ISO / IEC 8802-3) does not provide data security methods, which makes it easy for attackers to steal key information. In the field of international research, the IEEE 802.1AE standard developed by IEEE provides a data encryption protocol for protecting Ethernet, and adopts hop-by-hop encryption security measures to realize the safe transmission ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/14H04L9/08
CPCH04L63/061H04L9/0838H04L9/0891
Inventor 铁满霞李琴葛莉杜志强
Owner CHINA IWNCOMM
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