Signature-Based Anti-Quantum Schemes for Blockchain-Based Donation and E-Invoice

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.