کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7131853 1461686 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Image encryption algorithm based on multiple mixed hash functions and cyclic shift
ترجمه فارسی عنوان
الگوریتم رمزنگاری تصویر بر اساس توابع چندگانه مخلوط و تغییر چرخه
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی
This paper proposes a new one-time pad scheme for chaotic image encryption that is based on the multiple mixed hash functions and the cyclic-shift function. The initial value is generated using both information of the plaintext image and the chaotic sequences, which are calculated from the SHA1 and MD5 hash algorithms. The scrambling sequences are generated by the nonlinear equations and logistic map. This paper aims to improve the deficiencies of traditional Baptista algorithms and its improved algorithms. We employ the cyclic-shift function and piece-wise linear chaotic maps (PWLCM), which give each shift number the characteristics of chaos, to diffuse the image. Experimental results and security analysis show that the new scheme has better security and can resist common attacks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 107, August 2018, Pages 370-379
نویسندگان
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