کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6957591 1451919 2018 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cryptanalysis and improvement of the image cryptosystem reusing permutation matrix dynamically
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Cryptanalysis and improvement of the image cryptosystem reusing permutation matrix dynamically
چکیده انگلیسی
This paper proposes an attack model to break the security of an image cipher entitled with “Reusing the permutation matrix dynamically for efficient image cryptographic algorithm” developed by Chen et al. The attack model uses only two chosen plain-images to recover any image of size 256 × 256 while it requires four chosen plain-images to reveal images of larger sizes. The paper also suggests an image cryptosystem to overcome the security inadequacies of the scheme under study. The proposed scheme utilizes multi-chaotic systems and a self-generation mechanism to scramble and diffuse a plain-image based on both the secret key and specific features of the plain-image. This promotes the security level of the proposed cipher as illustrated by the conducted security analysis and experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 148, July 2018, Pages 172-192
نویسندگان
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