A high-speed chaotic key security distribution system and method
A security distribution and chaotic technology, applied in key distribution, can solve the problems of slow key distribution speed and poor security, and achieve the effect of improving speed and ensuring security.
Active Publication Date: 2022-04-19
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0011] The purpose of the present invention is to solve the problems of poor security and slow key distribution rate in the current key distribution technology, and provide a high-speed chaotic key security distribution system and method
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[0022] In order to illustrate the embodiment of the present invention or the technical solution in the prior art more clearly, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0023] In the description of the present invention, it should be noted that the terms "first", "second", "third" and so on are only used to distinguish descriptions, and should not be understood as indicating or implying relative importance.
[0024] See attached figure 1 And attached figure 2 , a high-speed chaotic key secure distribution system and method provided by the present invention will now be described.
[0025] The present invent...
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The invention belongs to the field of secure communication, relates to key distribution in secure communication, specifically a high-speed chaotic key security distribution system and method, which solves the problems of poor security and slow key distribution rate existing in the current key distribution technology, The system includes DFB chaos generator, first, second, third and fourth 1ⅹ2 fiber couplers, DFB laser, delay adjustment control module, balance detector, analog-to-digital converter, memory, common channel, first and second fiber delay wire and 14‑1ⅹ2 optical switches. The rate of key distribution in the present invention is not directly related to the synchronous state of the DFB lasers of both sides of the communication. The chaotic signals with a certain delay difference in the two paths interfere with the coupler. Through such a nonlinear transformation, the obtained signal It is irrelevant to the light emitted by the DFB chaos generator; the high-speed chaos key security distribution system and method described in the present invention effectively improves the security of key distribution and accelerates the key generation and distribution speed.
Description
technical field [0001] The invention belongs to the field of secure communication, relates to key distribution in the secure communication, in particular to a high-speed chaotic key security distribution system and method. Background technique [0002] To ensure the security of secure communication systems, secure key distribution is crucial. Secure communication between two users in a cryptographic system relies on a secret key known only to both parties. Two users share the key through a secure key distribution scheme. [0003] The security of existing key distribution schemes mainly has two forms: security based on computation and security based on information theory. For computation-based security, it requires the premise that the eavesdropper has limited computation power. For security based on information theory, it does not need to consider the computing power of the eavesdropper. [0004] The basic principle of the calculation-based key distribution scheme is: th...
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IPC IPC(8): H04L9/08H04L9/00
CPCH04L9/0819H04L9/085H04L9/001
Inventor 王安帮王龙生郭园园武超人高华王云才
Owner TAIYUAN UNIV OF TECH