Thông tin tài liệu


Nhan đề : 
An extendable key space integer image-cipher using 4-bit piece-wise linear cat map
Tác giả : 
Gaetan Gildas Gnyamsi, Nkuigwa
Hermann Djeugoue, Nzeuga
J. S. Armand Eyebe, Fouda
Năm xuất bản : 
2023
Nhà xuất bản : 
Springer
Tóm tắt : 
This paper presents a multiplierless image-cipher, with extendable 2048-bit key-space, based on a 4-dimensional (4D) quantized piece-wise linear cat map (PWLCM). The quantized PWLCM exhibits limit-cycles of 4-bit encoded integers with periods greater than 107. The synthesis of the PWLCM in a finite state space allows to eliminate the undesirable finite precision effect due to the hardware realization. The proposed image-cipher combines chaos, modular arithmetic, and lattice-based cryptography to encrypt a color image by performing pixel permutation and diffusion in a single operation. Further, an image-dependent confusion operation based on an 8-bit 2D-PWLCM is performed on the whole image to enhance security.
Mô tả: 
CC BY
URI: 
https://link.springer.com/article/10.1007/s11042-022-13779-y
https://dlib.phenikaa-uni.edu.vn/handle/PNK/7355
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