Three-way handshake protocol method

A three-step handshake and protocol technology, applied to key distribution, can solve problems such as low energy consumption, limited resources, and low power of equipment

Inactive Publication Date: 2009-05-13
CHINA IWNCOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some applications of ultra-wideband UWB communication networks, devices are low-power and low-energy-consuming (powered by batteries), and their resources such as energy, communication, and computing are quite limited, and they will face problems when updating the pairwise temporary key PTK. Resource Constrained Confusion

Method used

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Examples

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Embodiment Construction

[0032] Concrete implementation method of the present invention is as follows:

[0033] 1) The initiator sends message 1 to the responder, which includes PTKID, MKID, UD, I-Nonce, etc., where the pairwise temporary key identifier PTKID is a value randomly selected by the initiator (not related to the locally stored or ongoing The temporary key identifier TKID used in the three-step handshake protocol or the group temporary key GTK distribution agreement is the same), the master key identifier MKID is the sign of the paired master key PMK, and the update identifier UD indicates whether it is a paired temporary key The update process of the key PTK, I-Nonce is the random number generated by the initiator (when the paired temporary key PTK is established for the first time, the I-Nonce is generated by the initiator using the random number generation function, and when the paired temporary key is updated When using the key PTK, I-Nonce is the value negotiated by the initiator and t...

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Abstract

The invention relates to a three-step handshake protocol method suitable for ultra wide band network. The method comprises following steps: 1) initiator sends message 1 to responser; 2) the responser sends message 2 to initiator after receiving message 1; 3) initiator sends message 3 to initiator after receiving message 2; 4) the responser sends message 4 to initiator after receiving message 3; 5) after the initiator receives message 4, the initiators each acquires corresponding pair temporary key and key confirmation key. When pair temporary key updates, the transmitter directly sends I-Nonce construction message 1 to responser produced and stored using last pair temporary key negotiation process, the three-step handshake protocol interacted message does not need encryption processing, thereby the invention possesses not only anti-replay function compared with ECMA 386 three-step handshake protocol, and superiority in resource-limited application.

Description

technical field [0001] The invention relates to a three-step handshake protocol method, in particular to a three-step handshake protocol method suitable for ultra-wideband networks. Background technique [0002] ECMA (European Computer Manufacturers Association, ECMA) launched the ECMA368 standard in 2005 to define ultra-wideband UWB (Ultra Wideband) physical layer and MAC layer specifications. Ultra-wideband UWB is a carrier-free communication technology that uses nanosecond to microsecond sine wave narrow pulses to transmit data. A four-way handshake protocol (4-wayhandshake) is designed in the ECMA368 standard, which is used to establish or update the pairwise temporary key PTK (Pairwise Temporal Key) between ultra-wideband UWB devices. The four-step handshake protocol is as follows: [0003] 1) The initiator sends a message 1 to the responder: MN‖SC‖PTKID‖MKID‖I-Nonce‖PTK-MIC, where the message sequence number MN is 1, and the status code SC is 0, indicating that the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L9/0841H04L2209/80H04W12/04H04W12/10H04L9/3271H04L9/3242H04L9/3273H04L9/08H04L9/0891H04L9/0869H04L9/3244H04W12/06
Inventor 铁满霞曹军胡亚楠肖跃雷黄振海
Owner CHINA IWNCOMM
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