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Information Sciences

An efficient anti-quantum lattice-based blind signature for blockchain-enabled systems

Chaoyang Li, Yuan Tian, Xiu‐Bo Chen, Jian Li

Published Aug 14, 2020• 93 citations
Publisher
DOI
10.1016/j.ins.2020.08.032

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Blockchain technology has become a research hotspot in recent years with the prominent characteristics as public, distributed and decentration. And blockchain-enabled internet of things (BIoT) has a tendency to make a revolutionary change for the internet of things (IoT) which requires distributed trustless consensus. However, the scalability and security issues become particularly important with the dramatically increasing number of IoT devices. Especially, with the development of quantum computing, many extant cryptographic algorithms applied in blockchain or BIoT systems are vulnerable to the quantum attacks. In this paper, an anti-quantum proxy blind signature scheme based on the lattice cryptography has been proposed, which can provide user anonymity and untraceability in the distributed applications of BIoT. Then, the security proof of the proposed scheme can derive that it is secure in random oracle model, and the efficiency analysis can indicate it is efficient than other similar literatures.
To ensure the quantum security requirement in Internet of Things (IoT) scenarios, we first propose certificateless anti-quantum blind signature (CLAQBS) for blockchain-based logistics donation system in IoT scenario, its security relies on the hardness of small integer problem on ring in number theory research unit lattice; the ethereum lightning network enhances the transaction speed of consortium blockchain and the rejection sampling algorithm improves the signature speed; it has short signature key and high-execution efficiency. Then, we propose certificateless anti-quantum sequential aggregate signature (CLAQSAS) for IoT intelligent invoice system, the signer performs sequential aggregate signature on invoice information of each different goods to generate a new signature; it ensures the anti-quantum security because of the unique nonsampling algorithm, trapdoor generation algorithm and matrix preimage sampling algorithm in lattice.