کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5007868 1461702 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel chaotic image encryption algorithm using block scrambling and dynamic index based diffusion
ترجمه فارسی عنوان
الگوریتم جدید رمزنگاری تصویر با استفاده از رمزگذاری بلوک و انتشار پویا مبتنی بر پویا
کلمات کلیدی
رمزگذاری تصویر، آشوب، مسدود کردن مسدود کردن، شاخص پویا،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی


- A novel chaotic block image encryption algorithm is proposed.
- The proposed scrambling scheme can also be well used for double image scrambling.
- A two dynamic indexes based diffusion scheme is proposed.
- The proposed algorithm can resist chosen- and known-plaintext attacks effectively.
- The proposed algorithm has an excellent encryption performance with only one round.

In this paper, we propose a novel chaotic image encryption algorithm which involves a block image scrambling scheme and a new dynamic index based diffusion scheme. Firstly, the original image is divided into two equal blocks by vertical or horizontal directions. Then, we use the chaos matrix to construct X coordinate, Y coordinate and swapping control tables. By searching the X coordinate and Y coordinate tables, the swapping position of the processing pixel is located. The swapping control table is used to control the swapping of the pixel in the current block or the other block. Finally, the dynamic index scheme is applied to the diffusing of the scrambled image. The simulation results and performance analysis show that the proposed algorithm has an excellent safety performance with only one round.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 91, April 2017, Pages 41-52
نویسندگان
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