Quantum Computing Resistant Electronic Document Transmission Method and System Based on Secret Sharing and Quantum Communication Service Station

Abstract

The invention discloses a quantum computing-resistant electronic document transmission method and system based on secret sharing and quantum communication service stations. The system includes office organizations and regional branches. Secretly share a pair of master keys with the corresponding quantum communication service station, and generate its own temporary private key component and temporary public key component each time it communicates. The key card of the present invention will not be cracked to obtain the user key, even if it is lost, there is no need to worry about key failure, and the threshold signature that is resistant to quantum computing and simplifies the process is realized, and the file receiver does not have the public key of the authority, thus protecting the authority The private key of the organization, and the service station can only obtain the hash value of the electronic document but not the content of the document during the verification and signature process, and the rights and interests of users are guaranteed.

Description

technical field [0001] The invention relates to the technical field of quantum communication identity authentication, in particular to an electronic document transmission method and system based on secret sharing and anti-quantum computing of a quantum communication service station. Background technique [0002] The official document transmission system generally uses data encryption technology to realize the confidentiality of file information in the process of file transmission through network means. The system uses symmetric encryption system to encrypt file information to ensure the confidentiality of file information. The file information exists in the form of ciphertext on the storage medium and the transmission channel. Only the receiving users designated by the sender can obtain the plaintext of the file information, ensuring that confidential information will not be leaked or lost. [0003] Use an asymmetric encryption system to sign the file information, that is, t...

AI Technical Summary

Problems solved by technology

[0008] 2. After the key card is lost or stolen, the owner reports the loss of the key card. Assuming that the enemy has the ability to crack the key card, the report of the loss of the key card will cause the public and private key pairs corresponding to the key card to become invalid at the same time, and no longer allowed to be used

[0009] 3. The existing multi-party threshold signature method has the role of the signature organizer, and needs to summarize the signature intermediate variables and signature components many times. The process is more complicated and the communication cost is higher.

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