Session key generation method and related apparatus

By adding the PQC module and SM2 encryption to the SIM card and using the hybrid key encapsulation algorithm to generate session keys, the threat of quantum computers to traditional encryption schemes is resolved, and secure session key generation that is resistant to quantum attacks is achieved.

CN119276494BActive Publication Date: 2025-10-17ORIGIN QUANTUM COMPUTING TECH (HEFEI) CO LTD
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Patent Information

Application Number
CN202411549141.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-10-17
Estimated Expiration
2044-11-01

AI Technical Summary

Technical Problem

Existing traditional encryption schemes are unable to effectively protect the security of information transmission in the face of the threat of quantum computers.

Method used

A PQC module is added to the SIM card, and combined with SM2 classical symmetric encryption, a hybrid key encapsulation algorithm is used to generate session keys. The post-quantum key algorithm and the classical key algorithm are used to generate private and public key teams. The public key team is used to encrypt key generation information, and the private key team is used to decrypt ciphertext information, ensuring the security of the session key generation process.

Benefits of technology

It realizes the generation of session keys that are resistant to quantum computer attacks, improves the security of SIM cards during information interaction, and ensures that the session key generation process cannot be cracked.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a session key generation method and related device, and relates to the technical field of quantum encryption; when a first SIM card needs to interact information with a second SIM card, a private key team and a public key team can be generated; since the first SIM card is pre-configured with a hybrid key encapsulation algorithm, the public key team includes a public key that can resist quantum attacks, so after the public key team is sent to the second SIM card, the second SIM card can generate key generation information by using an encapsulation algorithm in the hybrid key encapsulation algorithm, encrypt the key generation information by using the public key team, obtain ciphertext information, and send the ciphertext information to the first SIM card; in this way, the first SIM card can decrypt the ciphertext information by using the private key team, obtain the key generation information, and thus obtain a session key.
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Citation Information

Patent Citations

  • Method and system for protecting web interaction information

    CN113726503A

  • ChatGPT content filtering signature and encryption method based on post-quantum cryptography

    CN116684082A

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