TY - JOUR
T1 - A chaos-based symmetric image encryption scheme using a bit-level permutation
AU - Zhu, Zhi-Liang
AU - Zhang, Wei
AU - Wong, Kwok-Wo
AU - Yu, Hai
PY - 2011
Y1 - 2011
N2 - In recent years, a variety of chaos-based digital image encryption algorithms have been suggested. Most of these algorithms implement permutations and diffusions at the pixel level by considering the pixel as the smallest (atomic) element of an image. In fact, a permutation at the bit level not only changes the position of the pixel but also alters its value. Here we propose an image cryptosystem employing the Arnold cat map for bit-level permutation and the logistic map for diffusion. Simulations have been carried out and analyzed in detail, demonstrating the superior security and high efficiency of our cryptosystem. © 2010 Published by Elsevier Inc. All rights reserved.
AB - In recent years, a variety of chaos-based digital image encryption algorithms have been suggested. Most of these algorithms implement permutations and diffusions at the pixel level by considering the pixel as the smallest (atomic) element of an image. In fact, a permutation at the bit level not only changes the position of the pixel but also alters its value. Here we propose an image cryptosystem employing the Arnold cat map for bit-level permutation and the logistic map for diffusion. Simulations have been carried out and analyzed in detail, demonstrating the superior security and high efficiency of our cryptosystem. © 2010 Published by Elsevier Inc. All rights reserved.
KW - Bit-level permutation
KW - Chaos
KW - Cryptography
KW - Image encryption
UR - http://www.scopus.com/inward/record.url?scp=79251594543&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-79251594543&origin=recordpage
U2 - 10.1016/j.ins.2010.11.009
DO - 10.1016/j.ins.2010.11.009
M3 - RGC 21 - Publication in refereed journal
SN - 0020-0255
VL - 181
SP - 1171
EP - 1186
JO - Information Sciences
JF - Information Sciences
IS - 6
ER -