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Journal of Ambient Intelligence and Humanized Computing

Revisiting post-quantum hash proof systems over lattices for Internet of Thing authentications

Zengpeng Li, Jiuru Wang, Wenyin Zhang

Published Oct 11, 2019• 11 citations
Publisher
DOI
10.1007/s12652-019-01529-2

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The Edge-computing era presents opportunities for the rapid development of the Internet of Things (IoT), where identity authentication is fundamental to ensuring IoT security. However, under post-quantum attacks, traditional identity authentication schemes that rely on signcryption to generate node keys face challenges due to the high number of IoT nodes. These schemes consume significant resources, making it difficult to meet the low-cost requirements of IoT. Against the backdrop of the rapid development of new media and the increasingly growing security demands for resource-constrained consumer electronic edge devices, a lightweight group signcryption authentication scheme based on lattice cryptography is proposed. During the key generation phase, an improved trapdoor diagonal matrix is designed, optimizing the preimage sampling algorithm required for key generation and reducing the total time needed to generate multiple keys. In the identity authentication phase, based on the leftover hash lemma and the properties of signcryption, the scheme allows for simultaneous signing and encryption of messages in a single logical step. A low-interaction protocol combining dot products and hash operations is proposed, enabling group leaders to perform access authentication on behalf of group members. Simulation results show that the scheme reduces the number of interactions required for IoT device access, lowers computational costs during identity authentication, and reduces the total cost of signcryption and un-signcryption by at least 7% compared to existing schemes. Additionally, it is demonstrated that this scheme can resist post-quantum attacks in IoT environments.
With the increasing demand of consumers for food safety, the application of Internet of Things (IoT) in agriculture is more and more extensive, especially the use of technologies such as QR codes and sensors for food information traceability. However, the Internet of Things still faces challenges in ensuring the authenticity of food data transmission and the integrity of food anti-counterfeiting authentication, especially the traditional digital signature algorithm that the Internet of Things relies on is vulnerable to the security threat brought by future quantum computers. In order to solve this problem, we propose a domestic replacement solution for the post-quantum digital signature algorithm SPHINCS-α(an improvement of the standardized post-quantum digital signature scheme SPHINCS+), and use the chinese national standard cryptographic hash function Shang Mi 3 (SM3) to replace its underlying hash function. Finally, we conducted experiments, gave the benchmark test results under three security parameters, and compared the performance with the original scheme using SHA256 and Shake256 hash function. The results prove the feasibility of our method, although there is a small rate drop, but in exchange for a more secure domestic hash function. It provides strong support for the early deployment of post-quantum cryptography algorithm in the Internet of Things environment of sustainable agriculture and industry, and ensures the integrity of the Internet of Things data in the practice of sustainable agriculture.