Cryptanalysis of an image encryption algorithm using Chebyshev generator

被引：55
作者：
Wang, Xingyuan [1 ]
Luan, Dapeng [1 ]
Bao, Xuemei [1 ]
机构：
[1] Dalian Univ Technol, Fac Elect Informat & Elect Engn, Dalian 116024, Peoples R China
来源：
DIGITAL SIGNAL PROCESSING | 2014年 / 25卷
基金：
中国国家自然科学基金;
关键词：
Image encryption; Chaotic Chebyshev map; Cryptanalysis; Chosen-plaintext attack; SCHEME; CHAOS;
D O I：
10.1016/j.dsp.2013.10.020
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Recently, studies of image encryption algorithms have been increasingly based on chaos, but there still exist drawbacks in chaotic cryptosystem that threat the security. In this paper, we make cryptanalysis on an image encryption based on Chebyshev chaotic map and find the following: (1) chosen-plaintext attack can break the scheme. (2) There exist equivalent keys and weak keys for the encryption scheme. (3) The scheme has low sensitivity to the changes of plain image. And we successfully carry out the chosen-plaintext attack. To overcome the drawbacks, a remedial technique is suggested. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码：244 / 247
页数：4
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