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<p>The Internet of Things (IoT) seamlessly interconnects entities in both industrial and everyday contexts, enabling efficient operations through enhanced data exchange and information sharing. Given its efficiency and flexibility, attribute-based signature (ABS) has become widely adopted in distributed IoT networks. In response to existing challenges in these environments, we propose a multi-authority server-aided verification attribute-based signature scheme. Multiple attribute authorities manage distinct attributes, thereby preventing data congestion from concurrent private key requests and mitigating single-point failures if an authority is compromised. To optimize computational overhead on lightweight devices, our design outsources resource-intensive pairing and exponentiation tasks to a server while preserving robust security under third-party verification. We formally prove the scheme’s anonymity and its unforgeability under chosen-message attacks. Comparative analysis with two alternative schemes, considering functionality, storage size, and computational costs through experimental simulations, underscores the superiority of our proposed solution.</p>

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Multi-authority attribute-based server-aided verifiable signature for IoT-distributed networks

  • 期刊论文

  • 发表日期：

    2025年8月4日

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  • Zheng Yang,
  • Zhidong Xie,
  • Hua Zhu,
  • Chunlin Yin

摘要

The Internet of Things (IoT) seamlessly interconnects entities in both industrial and everyday contexts, enabling efficient operations through enhanced data exchange and information sharing. Given its efficiency and flexibility, attribute-based signature (ABS) has become widely adopted in distributed IoT networks. In response to existing challenges in these environments, we propose a multi-authority server-aided verification attribute-based signature scheme. Multiple attribute authorities manage distinct attributes, thereby preventing data congestion from concurrent private key requests and mitigating single-point failures if an authority is compromised. To optimize computational overhead on lightweight devices, our design outsources resource-intensive pairing and exponentiation tasks to a server while preserving robust security under third-party verification. We formally prove the scheme’s anonymity and its unforgeability under chosen-message attacks. Comparative analysis with two alternative schemes, considering functionality, storage size, and computational costs through experimental simulations, underscores the superiority of our proposed solution.