دانلود رایگان مقاله انگلیسی ایجاد طرح رمزنگاری بصری با تجزیه هیپرگرافی - الزویر 2018

عنوان فارسی
ایجاد طرح رمزنگاری بصری با تجزیه هیپرگرافی
عنوان انگلیسی
Constructing visual cryptography scheme by hypergraph decomposition
صفحات مقاله فارسی
0
صفحات مقاله انگلیسی
8
سال انتشار
2018
نشریه
الزویر - Elsevier
فرمت مقاله انگلیسی
PDF
کد محصول
E8885
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مهندسی کامپیوتر
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امنیت اطلاعات
مجله
پروسه علوم کامپیوتر - Procedia Computer Science
دانشگاه
School of Information Science and Technology - University of International Relations - China
کلمات کلیدی
رمزنگاری ویژوال؛ ساختار دسترسی، تجزیه هایپرگرافی
چکیده

Abstract


A threshold visual cryptography scheme, denoted as (k, n)-VCS for short, can encrypt a secret image into n share images. The physical stacking of any k share images can reveal the secret content while any less than k share images will leak no information of the secret content. Besides the threshold access structure, general access structure VCSs are studied in the following works. In this paper, we first build a hyper star access structure VCS from a hyper star without center access structure VCS. Then we build a normal form hyper star access structure VCS from a full threshold VCS, and prove that its pixel expansion is optimal. At last, we propose a method of constructing general access structure VCS from its several decomposed normal form hyper star access structure VCSs.

نتیجه گیری

4. Conclusions


In this paper, we propose three constructions, which include building a hyper star access structure VCS from a hyper star without center access structure VCS, building a normal form hyper star access structure VCS, building a general access structure VCS from several small normal form hyper star access structure VCSs, respectively. The theoretical anaysis of those constructions are also presented.


بدون دیدگاه