Ciphertext-Only Attacks Against Compact-LWE Submitted to NIST PQC Project

doi:10.1007/s11424-021-0042-3

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	Ciphertext-Only Attacks Against Compact-LWE Submitted to NIST PQC Project
	Li, Haoyu 1,2,3; Liu, Renzhang 4; Liu, Zhen 1,3; Pan, Yanbin 1; Xie, Tianyuan 1,3
	2021-04-05
发表期刊	JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY
ISSN	1009-6124
页码	18
摘要	As a candidate of the standard of post-quantum cryptography for NIST, Liu, et al. submitted a new public-key encryption scheme Compact-LWE, whose structure is similar to LWE, but with different distribution of errors. They thought that the special error distribution would protect Compact-LWE from known lattice-based attacks. Furthermore, they recommended a set of small parameters to improve the efficiency of Compact-LWE and claimed it can offer 192-bit security. However, in this paper, the authors show that Compact-LWE is not secure under recommended parameters by presenting two ciphertext-only attacks. First, the authors show that the message can be recovered efficiently from the ciphertext. Then the authors go further to recover an equivalent private key efficiently from the public key by exploiting the special structure of Compact-LWE.
关键词	Ciphertext-only attack Compact-LWE NIST post-quantum cryptography
DOI	10.1007/s11424-021-0042-3
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61572490] ; National Key Research and Development Project[2018YFA0704705] ; National Center for Mathematics and Interdisciplinary Sciences, CAS
WOS研究方向	Mathematics
WOS类目	Mathematics, Interdisciplinary Applications
WOS记录号	WOS:000636951200004
出版者	SPRINGER HEIDELBERG
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/58433
专题	中国科学院数学与系统科学研究院
通讯作者	Pan, Yanbin
作者单位	1.Chinese Acad Sci, Key Lab Math Mechanizat, NCMIS, Acad Math & Syst Sci, Beijing 100190, Peoples R China 2.State Key Lab Cryptol, Beijing 100878, Peoples R China 3.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China 4.Westone Informat Ind INC, Westone Cryptol Res Ctr, Beijing 100070, Peoples R China
推荐引用方式 GB/T 7714	Li, Haoyu,Liu, Renzhang,Liu, Zhen,et al. Ciphertext-Only Attacks Against Compact-LWE Submitted to NIST PQC Project[J]. JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY,2021:18.
APA	Li, Haoyu,Liu, Renzhang,Liu, Zhen,Pan, Yanbin,&Xie, Tianyuan.(2021).Ciphertext-Only Attacks Against Compact-LWE Submitted to NIST PQC Project.JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY,18.
MLA	Li, Haoyu,et al."Ciphertext-Only Attacks Against Compact-LWE Submitted to NIST PQC Project".JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY (2021):18.