Paper 2021/522 Original: eprint.iacr.org/2021/522 ↗
Public-key Cryptosystems and Signature Schemes from p-adic Lattices
Abstract
In 2018, the longest vector problem and closest vector problem in local fields were introduced, as the p-adic analogues of the shortest vector problem and closest vector problem in lattices of Euclidean spaces. They are considered to be hard and useful in constructing cryptographic primitives, but no applications in cryptography were given. In this paper, we construct the first signature scheme and public-key encryption cryptosystem based on p-adic lattice by proposing a trapdoor function with the orthogonal basis of p-adic lattice. These cryptographic schemes have reasonable key size and efficiency, which shows that p-adic lattice can be a new alternative to construct cryptographic primitives and well worth studying.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2022-05-19: last updated
- 2021-04-23: published
- Short URL
- https://ia.cr/2021/522
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2021/522,
author = {Yingpu Deng and Lixia Luo and Yanbin Pan and Zhaonan Wang and Guanju Xiao},
title = {Public-key Cryptosystems and Signature Schemes from p-adic Lattices},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/522},
year = {2021},
url = {https://eprint.iacr.org/2021/522}
}