کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
759234 896469 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fast image encryption and authentication scheme based on chaotic maps
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
A fast image encryption and authentication scheme based on chaotic maps
چکیده انگلیسی

In recent years, a variety of chaos-based image cryptosystems have been proposed. The key used for encryption/decryption is usually independent of the plain-image. To achieve a satisfactory level of security, at least two overall rounds of the substitution-diffusion process are required so that a change in any pixels of the plain-image spreads over the whole cipher-image. Moreover, the receiver is not able to determine whether the decrypted image is exactly the one sent. In this paper, a fast image encryption and authentication scheme is proposed. In particular, a keyed hash function is introduced to generate a 128-bit hash value from both the plain-image and the secret hash keys. The hash value plays the role of the key for encryption and decryption while the secret hash keys are used to authenticate the decrypted image. Simulation results show that satisfactory security performance is achieved in only one overall round. The speed efficiency is thus improved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 15, Issue 11, November 2010, Pages 3507–3517
نویسندگان
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