Secret key distribution device based on chaotic synchronization

Abstract

The present invention discloses a secret key distribution device based on chaos synchronization. The device comprises a chaotic signal generation module, an analog-to-digital conversion module, and an error correction module. The chaotic signal generation module inputs an excitation signal, and outputs a random chaotic analog signal; the analog-to-digital conversion module inputs the random chaotic analog and outputs a random chaotic digital signal; the error correction module inputs a random chaotic digital signal, namely a secret key, in accordance with the random chaotic digital signal; and the chaotic signal generation module, the analog-to-digital conversion module, and the error correction module are successively connected. In the device, the sender and the receiver enable secret key spread and distribution without information sharing before a ciphertext is sent and received. The confidential capacity is unrelated to computing power. The sender and receiver only need this device to enable secret key distribution.

Description

technical field [0001] The invention relates to a secret key distribution device based on chaos synchronization, which belongs to the technical field of secure communication. Background technique [0002] Key security and key distribution are the most important links in secure communication. Once the key distribution system is destroyed, the entire security system will become meaningless. At present, one of the main secret key distribution technologies is the RSA encryption algorithm, which is a technology based on the difficulty of factoring large numbers. The advantage of this technology is that the sender and receiver of the ciphertext only need to share a public key instead of Dissemination of other information can realize the dissemination of passwords, and the public key sharing method can be disclosed arbitrarily. The disadvantage is that its secret lies in the difficulty of factorization. Once the computing power is improved, there will be no secrets at all. Conten...

AI Technical Summary

Problems solved by technology

At present, one of the main secret key distribution technologies is the RSA encryption algorithm, which is a technology based on the difficulty of factoring large numbers. The advantage of this technology is that the sender and receiver of the ciphertext only need to share a public key instead of Dissemination of other information can realize the dissemination of passwords, and the public key sharing method can be disclosed arbitrarily. The disadvantage is that its secret lies in the difficulty of factorization. Once the computing power is improved, there will be no secrets at all.

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