Intelligent household digital signcryption method and system based on asymmetric key pool

Abstract

The invention relates to an intelligent household digital signcryption method based on an asymmetric key pool. The method comprises the following steps of at a sender, extracting a parameter Kim1 froman asymmetric private key pool of a client by utilizing a random number, extracting a parameter Kim1 corresponding to the parameter Kim1 from an asymmetric public key pool of the client, extracting aparameter Kim2 from an asymmetric secret key pool of a home gateway, and calculating by utilizing the parameter Kim2 to obtain a first intermediate parameter and a second intermediate parameter; encrypting the original text F by using the first intermediate parameter to obtain a signcryption ciphertext cm; utilizing a Hash function to act on the original text F and the second intermediate parameter to obtain a signcryption authentication code rm; calculating by using the signcryption authentication code rm and the parameter kim1 to obtain a signcryption signature sm; calculating the parameterKim2 and the parameter Kim1 to obtain a calculation result, using the Hash function to act on the calculation result and the signcryption authentication code rm to obtain a signcryption signature keyrkm, and using the signcryption signature key rkm to encrypt the signcryption signature sm to obtain a parameter srkm; and combining the sender ID, the signcryption ciphertext cm, the signcryption authentication code rm and the parameter srkm, and sending as a signcryption FSM.

Description

technical field [0001] The invention relates to the technical field of smart home equipment, in particular to a smart home digital signcryption method and system based on an asymmetric key pool. Background technique [0002] With the continuous development of information technology and social economy, people's living standards have been continuously improved, and the pace of life has gradually accelerated. Residents can conveniently and quickly enjoy smart, comfortable, efficient and safe home life through mobile phones and other terminals. . With the gradual increase of home smart devices, people put forward higher requirements for the smart operation of home devices. In general smart home device communication methods, asymmetric key encryption is used to ensure data security. Asymmetric key encryption requires the use of different keys to complete the encryption and decryption operations. One is publicly released, that is, the public key, and the other is public. The use...

AI Technical Summary

Problems solved by technology

The home gateway is the central network element of the smart home, and has the ability to access the Internet. It is very likely to be infected with a virus Trojan horse, thereby stealing information; or being attacked and paralyzed, resulting in the paralysis of the entire smart home solution.

[0007] (2) In the prior art, the mobile terminal key is stored in the memory of the mobile terminal, exposed to the threat of viruses and Trojan horses in the mobile terminal, and can be stolen by malicious software or malicious operations

[0008] (3) Since the quantum computer can quickly obtain the corresponding private key through the public key, the existing smart home communication method based on the public-private key is easily cracked by the quantum computer

[0009] (4) In the existing technology, the input and output of digital signatures based on public and private keys can be known by the enemy. In the presence of quantum computers, the private key may be deduced, resulting in a public-private key-based Smart home communication system hacked by quantum computer

[0010] (5) In the prior art, the smart home communication system based on the symmetric key has the problem of difficult key issuance and security loopholes

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