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InfoResearchPeer-reviewed
A Lightweight Privacy Protection Blockchain Framework Against Quantum Attacks
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Summary
This paper proposes LLPP, a Lightweight Lattice-based Privacy Protection blockchain framework, to defend against quantum attacks that threaten RSA and elliptic curve cryptography through Shor's and Grover's algorithms. It pairs lattice-based digital signatures with a double encryption mechanism and stores signatures and public keys on IPFS, recording only 46-byte content identifiers on-chain. Evaluations on the Substrate platform report signing and verification latencies below 2 milliseconds.