Double-image encryption based on the affine transform and the gyrator transform

被引：66

作者：

Liu, Zhengjun ^{[1
]}

Chen, Hang ^{[1
]}

Liu, Ting ^{[1
]}

Li, Pengfei ^{[1
]}

Dai, Jingmin ^{[1
]}

Sun, Xiaogang ^{[1
]}

Liu, Shutian ^{[2
]}

机构：

[1] Harbin Inst Technol, Dept Automat Measurement & Control Engn, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

来源：

JOURNAL OF OPTICS | 2010年 / 12卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

double image encryption; cryptography; optical transform; FRACTIONAL FOURIER-TRANSFORM; PHASE-SHIFTING INTERFEROMETRY; OPTICAL ENCRYPTION; FRESNEL DOMAIN; HARTLEY TRANSFORMS; PLAINTEXT ATTACK; KEYS; IMPLEMENTATION; SECURITY;

D O I：

10.1088/2040-8978/12/3/035407

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a kind of double-image-encryption algorithm by using the affine transform in the gyrator transform domain. Two original images are converted into the real part and the imaginary part of a complex function by employing the affine transform. And then the complex function is encoded and transformed into the gyrator domain. The affine transform, the encoding and the gyrator transform are performed twice in this encryption method. The parameters in the affine transform and the gyrator transform are regarded as the key for the encryption algorithm. Some numerical simulations have validated the feasibility of the proposed image encryption scheme.

引用

页数：8

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