School of Computer Science and Engineering, State Key Laboratory of Software Development Environment Beihang University, Beijing, China.
Institute of Artificial Intelligence, Beihang University, Beijing, China.
PLoS One. 2023 Feb 1;18(2):e0279429. doi: 10.1371/journal.pone.0279429. eCollection 2023.
The Internet of Things (IoT) and blockchain, the hottest frontier technologies in recent years, are expected to lead the next technological revolution. Blockchain promises to solve the current challenges encountered by the IoT. However, most of the proposed blockchain-based IoT architectures, which are based on discrete logarithm or large integer factorization problems, are susceptible to quantum attacks. Several quantum-resistant blockchain schemes have recently been proposed. However, the efficiency of their construction or the equipment required is not satisfactory. In this paper, to construct a more efficient postquantum blockchain infrastructure, we propose blockchain architecture for the IoT over the NTRU lattice and provide a cryptographic security proof of the scheme. Attributed to the more efficient underlying lattice structure, our scheme has excellent performance when compared to the existing quantum-resistant blockchain scheme, and we reduce the transaction size from hundreds of megabytes to several kilobytes. To further improve the blockchain's performance, we present the general framework of segregated witnesses and aggregate signatures over the NTRU lattice. Our scheme promises a blockchain solution for resource-constrained environments.
物联网 (IoT) 和区块链是近年来最热门的前沿技术，有望引领下一次技术革命。区块链有望解决物联网目前面临的挑战。然而，大多数基于离散对数或大整数分解问题的基于区块链的物联网架构容易受到量子攻击。最近已经提出了几种抗量子区块链方案。然而，它们的构造效率或所需的设备并不令人满意。在本文中，为了构建更高效的后量子区块链基础设施，我们提出了物联网的 NTRU 格上区块链架构，并提供了该方案的密码安全性证明。由于更高效的底层格结构，与现有的抗量子区块链方案相比，我们的方案具有出色的性能，并且我们将交易大小从数百兆字节减少到了几千字节。为了进一步提高区块链的性能，我们提出了 NTRU 格上的隔离见证和聚合签名的通用框架。我们的方案为资源受限的环境提供了区块链解决方案。
