Paper 2024/1306

Scloud+: a Lightweight LWE-based KEM without Ring/Module Structure

Anyu Wang, Tsinghua University
Zhongxiang Zheng, Communication University of China
Chunhuan Zhao, Huawei Technology
Zhiyuan Qiu, Shandong Institute of Blockchai
Guang Zeng, Huawei Technology
Xiaoyun Wang, Tsinghua University
Abstract

We propose Scloud+, a lattice-based key encapsulation mechanism (KEM) scheme. The design of Scloud+ is informed by the following two aspects. Firstly, Scloud+ is based on the hardness of algebraic-structure-free lattice problems, which avoids potential attacks brought by the algebraic structures. Secondly, Scloud+ provides sets of light weight parameters, which greatly reduce the complexity of computation and communication complexity while maintaining the required level of security.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
Keywords
post-quantum cryptographykey encapsulation mechanismlearning with errorslattice codeBarnes-Wall lattice
Contact author(s)
anyuwang @ tsinghua edu cn
zhengzx @ cuc edu cn
zhaochunhuan @ huawei com
qiuzhiyuan @ sdibc cn
zengguang13 @ huawei com
xiaoyunwang @ tsinghua edu cn
History
2024-08-23: approved
2024-08-21: received
See all versions
Short URL
https://ia.cr/2024/1306
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2024/1306,
      author = {Anyu Wang and Zhongxiang Zheng and Chunhuan Zhao and Zhiyuan Qiu and Guang Zeng and Xiaoyun Wang},
      title = {Scloud+: a Lightweight {LWE}-based {KEM} without Ring/Module Structure},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/1306},
      year = {2024},
      url = {https://eprint.iacr.org/2024/1306}
}
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