Post-quantum identity authentication method and system based on hybrid certificate and quantum key

By using a hybrid certificate and quantum key authentication method, the security shortcomings of traditional asymmetric cryptographic algorithms in a quantum computing environment are solved, and the confidentiality of dynamic challenge parameters and temporary keys is guaranteed, ensuring the long-term security of authentication.

CN122419782APending Publication Date: 2026-07-17中电信量子信息科技集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中电信量子信息科技集团有限公司
Filing Date
2026-03-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When faced with the threat of quantum computing, existing authentication methods cannot guarantee the confidentiality of core information through key exchange and data encryption processes in traditional asymmetric cryptography algorithms, leading to the failure of the authentication mechanism.

Method used

An identity authentication method based on hybrid certificates and quantum keys is adopted. Through a two-way authentication process between the client and the key management platform, the confidentiality of dynamic challenge parameters and temporary keys is ensured by the collaborative verification of preset client and platform encryption certificates, quantum keys and signature certificates.

Benefits of technology

In a quantum computing environment, the security of traditional asymmetric cryptographic algorithms has been improved, preventing the authentication mechanism from failing due to cracking and ensuring the long-term security of key exchange and data encryption.

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Abstract

The application discloses a post-quantum identity authentication method, system, device, equipment and medium based on a hybrid certificate and a quantum key, and the method comprises the following steps: sending a first authentication request to a key management platform; receiving and determining a preset platform encryption certificate, encryption challenge information and a quantum key according to first response data; determining a client challenge parameter according to the preset platform encryption certificate and the encryption challenge information, the quantum key, a preset client signature certificate and a platform decryption challenge parameter, and determining a second authentication request; sending the second authentication request to the key management platform; receiving and determining a preset platform signature certificate, a platform challenge parameter and an authentication token according to second response data; verifying the data legality of the platform challenge parameter and completing identity authentication according to the quantum key, the preset platform signature certificate and the platform challenge parameter, preventing the identity authentication mechanism from being invalidated due to the cracking of a traditional algorithm, and guaranteeing the long-term security of key exchange and data encryption.
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