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A Hybrid Encryption Scheme for Quantum Secure Video Conferencing Combined with Blockchain

Author

Listed:
  • Dexin Zhu

    (School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100811, China
    College of Computer Science and Technology, Changchun University, Changchun 130022, China)

  • Jun Zheng

    (School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100811, China)

  • Hu Zhou

    (College of Computer Science and Technology, Changchun University, Changchun 130022, China)

  • Jianan Wu

    (College of Computer Science and Technology, Changchun University, Changchun 130022, China)

  • Nianfeng Li

    (College of Computer Science and Technology, Changchun University, Changchun 130022, China)

  • Lijun Song

    (Jilin Engineering Laboratory for Quantum Information Technology, Jilin Engineering Normal University, Changchun 130052, China)

Abstract

Traditional video conference systems depend largely on computational complexity to ensure system security, but with the development of high-performance computers, the existing encryption system will be seriously threatened. To solve this problem, a hybrid encryption scheme for quantum secure video conferencing combined with blockchain is proposed in this study. In the system solution architecture, first, the quantum key distribution network is embedded in the classic network; then, the “classical + quantum” hybrid encryption scheme is designed according to the secret level required for the video conference content. Besides, the real-time monitoring module of the quantum key distribution network is designed to ensure that users can check the running state of the network at any time. Meeting minutes can be shared by combining with blockchain. In order to quickly query meeting minutes, a cache-efficient query method based on B+ tree is proposed. The experimental results show that compared with the traditional video conference system, the quantum secure video conference system sufficiently integrates the technical advantages of the quantum key distribution to resist the security threats such as channel eavesdropping and high-performance computational attacks while ensuring the stable operation of the classic system, thus providing a video conference system with a higher security level. Meanwhile, the query time cost of blockchain with different lengths is tested, and the query efficiency of the proposed method is 3.15-times higher than the original query efficiency of blockchain.

Suggested Citation

  • Dexin Zhu & Jun Zheng & Hu Zhou & Jianan Wu & Nianfeng Li & Lijun Song, 2022. "A Hybrid Encryption Scheme for Quantum Secure Video Conferencing Combined with Blockchain," Mathematics, MDPI, vol. 10(17), pages 1-24, August.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:17:p:3037-:d:895333
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    References listed on IDEAS

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    1. Masoud Mohseni & Peter Read & Hartmut Neven & Sergio Boixo & Vasil Denchev & Ryan Babbush & Austin Fowler & Vadim Smelyanskiy & John Martinis, 2017. "Commercialize quantum technologies in five years," Nature, Nature, vol. 543(7644), pages 171-174, March.
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