Identity-Based Verifiable Timed Signature Scheme on Lattices
Addressing the limitations of existing verifiable timed signature schemes,which are vulnerable to quantum attacks and incapable of batch processing time-lock puzzles,this paper proposed an identity-based verifiable timed lattices signature scheme based on the Ring-SIS(Short Integer Solution)problem.The scheme combined several quantum-resistant components,including non-interactive threshold secret sharing,batch processing of time-lock puzzles,and succinct non-interactive zero-knowledge proofs.This scheme achieved existential unforgeability and privacy under chosen identity attacks,while avoiding the cumbersome certificate issuance process of traditional digital signatures.It also offered post-quantum security and resistance to rogue puzzle attacks.Furthermore,this paper designed an electronic auction protocol based on the scheme,proposing a new on-chain privacy-preserving penalty mechanism,thereby extending the scheme's practical applicability.Finally,the paper demonstrated the actual performance of the scheme through functional analysis and simulation experiments.
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