Research Article
Improvement of an Identity-Based Aggregate Signature Protocol from Lattice
@INPROCEEDINGS{10.1007/978-3-031-56583-0_17, author={Songshou Dong and Yanqing Yao and Yihua Zhou and Yuguang Yang}, title={Improvement of an Identity-Based Aggregate Signature Protocol from Lattice}, proceedings={Digital Forensics and Cyber Crime. 14th EAI International Conference, ICDF2C 2023, New York City, NY, USA, November 30, 2023, Proceedings, Part II}, proceedings_a={ICDF2C PART 2}, year={2024}, month={4}, keywords={Lattice certificateless key escrow problem signature security}, doi={10.1007/978-3-031-56583-0_17} }- Songshou Dong
Yanqing Yao
Yihua Zhou
Yuguang Yang
Year: 2024
Improvement of an Identity-Based Aggregate Signature Protocol from Lattice
ICDF2C PART 2
Springer
DOI: 10.1007/978-3-031-56583-0_17
Abstract
In 2022, Li et al. [1] proposed a quantum secure and non-interactive identity-based aggregate signature protocol from lattices. In the end of their paper, they claimed that their scheme has key escrow problem. Based on this fact, we improve their scheme and propose a lattice-based certificateless aggregate signature protocol (L-CASP). Furthermore, our scheme has same signature size as Li et al. scheme and can avoid key escrow problem. Finally, we prove that our scheme is existentially unforgeable against adaptive chosen message attacks (EUF-CMA) under type I adversary and a type II adversary in the random oracle model (ROM).
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