Optical Cryptosystems. Naveen K. Nishchal
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image encryption
7 Digital holography-based security schemes
7.1 Introduction
7.2 Phase-shifting interferometry
7.3 Numerical reconstruction of digital holograms
7.3.1 Discrete Fresnel transformation
7.4 Information security using digital holography
7.5 Digital holography-based geometries for image encryption
7.5.1 Fourier domain DRPE through digital holography
7.5.2 FRT domain DRPE through digital holography
8 Securing fused multispectral data
8.1 Introduction
8.2 Image fusion principle using wavelet transform
8.3 Security of fused data/images
8.4 Asymmetric cryptosystems with fused color components
8.5 Color image encryption using XOR operation with LED
9 Chaos-based information security
9.1 Introduction
9.4 Chaos-based optical asymmetric cryptosystem
10 Optical asymmetric cryptosystems
10.1 Introduction
10.3.1 Phase retrieval for security
10.3.2 Phase retrieval: mathematical formulation
10.3.3 Modified GS algorithm for image multiplexing and encryption
10.5 PCI and phase-truncated FrT-based asymmetric encryption
MATLAB code for phase retrieval
11 Attacks on optical security schemes
11.1 Introduction
11.10 Effects of additive and multiplicative noise
12 Optical security keys/masks
12.1 Introduction
IOP Series in Advances in Optics, Photonics and Optoelectronics
SERIES EDITOR
Professor Rajpal S Sirohi Consultant Scientist
About the Editor
Rajpal S Sirohi is currently working as a faculty member in the Department of Physics, Alabama A&M University, Huntsville, Alabama (USA). Prior to this, he was a consultant scientist at the Indian Institute of Science Bangalore, and before that he was chair professor in the Department of Physics, Tezpur University, Assam. During 2000–11, he was academic administrator, being vice chancellor to a couple of universities and the director of the Indian Institute of Technology Delhi. He is the recipient of many international and national awards and the author of more than 400 papers. Dr Sirohi is involved with research concerning optical metrology, optical instrumentation, holography, and speckle phenomenon.
About the series
Optics, photonics and optoelectronics are enabling technologies in many branches of science, engineering, medicine and agriculture. These technologies have reshaped our outlook, our way of interaction with each other and brought people closer. They help us to understand many phenomena better and provide a deeper insight in the functioning of nature. Further, these technologies themselves are evolving at a rapid rate. Their applications encompass very large spatial scales from nanometers to astronomical and a very large temporal range from picoseconds to billions of years. The series on the advances on optics, photonics and optoelectronics aims at covering topics that are of interest to both