Guo Fang, Gao Yulong, Jiang Jian, Chen Xueting, Chen Xiubo, Jiang Zhengtao
State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing 100024, China.
State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China.
Sensors (Basel). 2025 Jun 12;25(12):3684. doi: 10.3390/s25123684.
The blockchain-enabled industrial Internet of Things (IIoT) faces security threats such as quantum computing attacks and privacy disclosure. Targeting these issues, in this study, we design a new lattice-based linkable ring signature (LRS) scheme, which is used to achieve privacy protection for the blockchain-enabled IIoT. Firstly, by using the trapdoor generation algorithm on the lattice and the rejection sampling lemma, we propose a new lattice-based LRS scheme with anti-quantum security and anonymity. Then, we introduce it into blockchain. Through the stealth address and key image technologies, we construct a privacy protection scheme for blockchain in the IIoT, and this LRS scheme protects identity privacy for users through anonymous blockchain. In addition, it also can resist the double spending attack with the linking user's signature. Lastly, we provide a security analysis, and it is proven that our ring signature scheme satisfies correctness, anonymity, unforgeability and linkability. Compared with other similar schemes, the performance simulation indicates that our scheme's public key and signature are shorter in size, and its computation overhead and time cost are lower. Consequently, our novel LRS scheme is more secure and practical, which provides privacy protection and anti-quantum security for the blockchain-enabled IIoT.
基于区块链的工业物联网（IIoT）面临量子计算攻击和隐私泄露等安全威胁。针对这些问题，在本研究中，我们设计了一种新的基于格的可链接环签名（LRS）方案，用于实现对基于区块链的IIoT的隐私保护。首先，通过使用格上的陷门生成算法和拒绝采样引理，我们提出了一种具有抗量子安全性和匿名性的新的基于格的LRS方案。然后，我们将其引入区块链。通过隐身地址和密钥图像技术，我们构建了一种针对IIoT中区块链的隐私保护方案，并且这种LRS方案通过匿名区块链为用户保护身份隐私。此外，它还可以通过链接用户签名来抵抗双重花费攻击。最后，我们进行了安全性分析，证明我们的环签名方案满足正确性、匿名性、不可伪造性和可链接性。与其他类似方案相比，性能模拟表明我们的方案的公钥和签名尺寸更短，并且其计算开销和时间成本更低。因此，我们新颖的LRS方案更安全实用，为基于区块链的IIoT提供了隐私保护和抗量子安全性。
