کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5449055 1512521 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Asymmetric optical cryptosystem based on modulus decomposition in Fresnel domain
ترجمه فارسی عنوان
رمزنگاری نوری نامتقارن بر اساس تجزیه مدول در دامنه فرنسل
کلمات کلیدی
رمزنگاری نوری، نامتقارن، هجوم بردن، تجزیه مدول،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
We propose a scheme of attacking the pure phase asymmetric optical cryptosystem based on equal modulus decomposition (EMD) method. The cryptosystem is proven to be vulnerable to our modified iterative algorithm, even though the applying of phase encoding can reduce the constrain conditions. Furthermore, since that the improvement of system space asymmetry and key variety is an effective way to further enhance the security, we have proposed an asymmetric cryptosystem based on modulus decomposition in Fresnel domain. Compared with traditional asymmetric cryptosystem in Fourier domain, the combination with Fresnel transform cannot only simplify the system, but also improve the space asymmetry and introduce the geometric parameters as security keys. Numerical simulations are performed to demonstrate the feasibility and security of the proposed cryptosystem. In addition, several exemplary schemes for security-enhanced asymmetric cryptosystems are presented, which may bring profound illumination to many deeper researches in asymmetric optical cryptosystem.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 402, 1 November 2017, Pages 302-310
نویسندگان
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