Integral Attack on Reduced-Round LEA Cipher

doi:10.3969/j.issn.0372-2112.2020.01.003

您当前的位置：

首页 >

文章列表页 >

Integral Attack on Reduced-Round LEA Cipher

更新时间：2025-07-08

- Integral Attack on Reduced-Round LEA Cipher
- Acta Electronica Sinica Vol. 48, Issue 1, Pages: 17-27(2020)
- 作者机构：
  
  1. 战略支援部队信息工程大学,河南,郑州,450001
  2. 数学工程与先进计算国家重点实验室,河南,郑州,450001
  3. 战略支援部队信息工程大学,河南,郑州,450001
  4. 数学工程与先进计算国家重点实验室,河南,郑州,450001
- 作者简介：
- 基金信息：
  
  Subject supported by Open Fund of State Key Laboratory of Mathematical Engineering and Advanced Computing (No.2018A03);National Cryptography Development Fund (No.MMJJ20180203);Open Fund of Key Laboratory of Information Assurance Technology (No.KJ-17-002)
- DOI：10.3969/j.issn.0372-2112.2020.01.003
  CLC： TN918.1
- Published Online：25 January 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
Integral Attack on Reduced-Round LEA Cipher[J]. Acta Electronica Sinica, 2020, 48(1): 17-27.
DOI：

Integral Attack on Reduced-Round LEA Cipher[J]. Acta Electronica Sinica, 2020, 48(1): 17-27. DOI： 10.3969/j.issn.0372-2112.2020.01.003.

摘要

LEA密码算法是一类ARX型轻量级分组密码，广泛适用于资源严格受限的环境.本文使用中间相错技术找到LEA算法的86条8轮和6条9轮零相关区分器，进一步利用零相关区分器和积分区分器的关系，构造出5条8轮和1条9轮积分区分器.在8轮积分区分器的基础上，利用密钥扩展算法的性质和部分和技术，首次实现了对LEA-128的10轮积分攻击，攻击的计算复杂度为2

120

次10轮LEA-128加密.进一步，实现了对LEA-192的11轮积分攻击以及对LEA-256的11轮积分攻击，计算复杂度分别为2

185.02

次11轮LEA-192加密和2

248

次11轮LEA-256加密.

Abstract

LEA cipher

a family of ARX lightweight block cipher

is widely used in resource-constrained environments. In this paper

we use the miss-in-the-middle technique to find 86 8-round zero-correlation distinguishers and 6 9-round zero-correlation distinguishers of LEA

and make use of the relationship between the zero-correlation distinguisher and the integral distinguisher to construct 5 8-round distinguishers and 1 9-round integral distinguishers. Based on 8-round integral distinguisher

integral attack on 10-round LEA-128 is implemented firstly by using the property of the key schedule and partial-sum technology

and the attack performs 2

120

10-round LEA-128 encryptions.Besides

the integral attack against 11-round LEA-1

92 with computational complexity of 2

185.02

11-round LEA-192 encryptions and the integral attack against 11-round LEA-256 with computational complexity of 2

248

11-round LEA-256 encryptions are implemented.

关键词

Keywords

references

Views

234

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Perfect Linear Approximation of Ultra-Lightweight Block Ciphers LiCi, LiCi-2 and GRANULE

New Integral Attack on Rijndael-256

Extended Algebraic-Side Channel Attack and Its Application

Related Author

YAN Zhi-guang

LI Ling-chen

WEI Yong-zhuang

WEI Yue-chuan

SUN Bing

LI Chao

PENG Chang-yong

ZHU Chuang-ying

Related Institution

Guangxi Key Laboratory of Cryptography and Information Security, Guilin University of Electronic Technology

College of Computer, National University of Defense Technology

Science College, National University of Defense Technology

State Key Laboratory of Information Security, Chinese Academy of Sciences

College of Computer National University of Defense Technology Changsha Hunan China

⁰