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Coding error correction based secret key forward direction consistency calibration method

A technology of error correction coding and verification method, which is applied in the field of key generation, can solve the problems of not considering the protection of wireless channel characteristic information and related parameters, communication interruption, and not proposing the consistency confirmation of the generated key, so as to improve the generation Probability of Consistent Keys, Effect of Good Compatibility

Inactive Publication Date: 2014-12-17
SOUTHEAST UNIV
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Problems solved by technology

This method has low real-time performance and is not suitable for processing information such as channel frequency-domain selective fading and multipath delay generated in real time; this method interacts the RSS-related information used to generate the key between A and B, which may be eavesdropped The possibility of being stolen by the attacker does not consider the protection of the wireless channel characteristic information and related parameters; this method does not propose the consistency confirmation of the generated key, and if the non-consistent key is used, the communication will be interrupted

Method used

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  • Coding error correction based secret key forward direction consistency calibration method
  • Coding error correction based secret key forward direction consistency calibration method
  • Coding error correction based secret key forward direction consistency calibration method

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Embodiment 2

[0084] In order to apply the present invention to a point-to-multipoint communication system, on the basis of using the processing steps completely consistent with the specific embodiment 1 of the method of the present invention, basic key, temporary key, session key, syndrome, Both the digest value and the key update instruction are marked with the identification number of the communication slave node, so as to distinguish different communication slave nodes and complete the application of the point-to-multipoint communication system.

Embodiment 3

[0086] In order to apply the present invention to a wired communication system, the following modifications are made on the basis of Embodiment 1 of the method of the present invention:

[0087] 1) In the uplink and downlink data receiving and processing steps, the receiving preprocessing link is changed according to the actual system;

[0088] 2) In the key generation and update processing steps, the channel feature information used to generate the temporary key should also include impedance changes and colored background noise.

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Abstract

The invention discloses a coding error correction based secret key forward direction consistency calibration method, belongs to the field of communication safety and relates to a secret key generating technology in a communication system. The coding error correction based secret key forward direction consistency calibration method is used for improving the inconsistency on secret key generation of the communication system, a safe frame structure, a secret key calibration method and a secret key update method are provided, and the safety problem in secret key generation and negotiation is solved. The coding error correction based secret key forward direction consistency calibration method is used for strengthening the safety of the communication system, can be specifically applied to the fields of safe communication, military communication and the like and can be extended to a multiple-node communication scene.

Description

technical field [0001] The invention belongs to the field of communication security and relates to key generation technology in communication systems. Background technique [0002] With the development of communication technology, wireless communication has been widely used, and its security has attracted increasing attention. Traditional encryption methods mainly rely on computational complexity to ensure the confidentiality of information. The broadcast nature of wireless transmission media makes wireless signals easier to intercept. For traditional encryption methods, in order to improve the encryption strength, it is necessary to increase the key length and the number of key generation iterations to increase the complexity of eavesdroppers to crack the key. However, this method increases the complexity of the encryption and decryption technology implemented by the terminal, and at the same time cannot completely prevent the key from being cracked. In addition, the com...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 王栋胡爱群韩远致李古月
Owner SOUTHEAST UNIV
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