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<p>In this study, we introduce a quantum-resistant and lightweight authenticated key agreement protocol tailored for the Multimedia Internet of Things (MIoT) environment. MIoT devices gather and send sensitive multimedia data to cloud servers, which means that secure mutual authentication and quick session key creation are needed. To accomplish feasible lattice-based key exchange, our scheme uses a reconciliation technique and the Ring Learning With Errors (RLWE) assumption. While informal analysis demonstrates resilience to common threats like replay and impersonation, the random oracle model formally proves security. The robustness of the protocol against a variety of active attacks is confirmed through additional verification using the AVISPA tool. Further performance analysis shows that the suggested method clearly improves post-quantum security and computational efficiency when compared to current authenticated key agreement schemes, while facing slightly higher communication costs to ensure stronger security. In general, this work strengthens the provable security of smart devices enabled by the MIoT. Future research will investigate more extensive MIoT applications and energy-efficient optimizations.</p>

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Lightweight hybrid lattice–based session key agreement protocol for multimedia IoT

  • 期刊论文

  • 发表日期：

    2025年10月20日

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  • Akanksha Singh,
  • Harish Chandra,
  • Saurabh Rana

摘要

In this study, we introduce a quantum-resistant and lightweight authenticated key agreement protocol tailored for the Multimedia Internet of Things (MIoT) environment. MIoT devices gather and send sensitive multimedia data to cloud servers, which means that secure mutual authentication and quick session key creation are needed. To accomplish feasible lattice-based key exchange, our scheme uses a reconciliation technique and the Ring Learning With Errors (RLWE) assumption. While informal analysis demonstrates resilience to common threats like replay and impersonation, the random oracle model formally proves security. The robustness of the protocol against a variety of active attacks is confirmed through additional verification using the AVISPA tool. Further performance analysis shows that the suggested method clearly improves post-quantum security and computational efficiency when compared to current authenticated key agreement schemes, while facing slightly higher communication costs to ensure stronger security. In general, this work strengthens the provable security of smart devices enabled by the MIoT. Future research will investigate more extensive MIoT applications and energy-efficient optimizations.