A Numerical analysis of double random phase encryption

被引：1
|
作者：
Monaghan, David S. [1 ]
Gopinathan, Unnikrishnan [1 ]
Naughton, Thomas J. [2 ]
Sheridan, John T. [1 ]
机构：
[1] Natl Univ Ireland Univ Coll Dublin, Coll Engn Math & Phys Sci, Sch Elect Elect & Mech Engn, Dublin 4, Ireland
[2] Natl Univ Ireland Maynooth, Dept Comp Sci, Maynooth, Kildare, Ireland
来源：
OPTICAL INFORMATION SYSTEMS IV | 2006年 / 6311卷
基金：
爱尔兰科学基金会;
关键词：
optical encryption; digital holography; optical signal processing;
D O I：
10.1117/12.680744
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We consider a Double Random Phase Encoding (DRPE) Encryption/Decryption system in which the image encryption/decryption process is performed numerically. In. this paper we present a key-space analysis of the (DRPE) algorithm which is used to encrypt two dimensional (2-D) images. We map the assiocated error for every phase-key in the key-space of a particular system to get a visual representation of the spread of phase-keys for the system and so assess it's security from a key-space perspective.
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页数：9
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