Optical Cryptosystems. Naveen K. Nishchal

image encryption

       References

       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

       7.3.2 Convolution approach

       7.3.3 Angular spectrum method

       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

       References

       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

       References

       9 Chaos-based information security

       9.1 Introduction

       9.2 Chaos and cryptography

       9.3 Chaos functions

       9.4 Chaos-based optical asymmetric cryptosystem

       References

       10 Optical asymmetric cryptosystems

       10.1 Introduction

       10.2 Asymmetric cryptosystems

       10.3 Phase retrieval

       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

       10.4 Photon counting imaging

       10.5 PCI and phase-truncated FrT-based asymmetric encryption

       MATLAB code for phase retrieval

       References

       11 Attacks on optical security schemes

       11.1 Introduction

       11.2 Brute-force attack

       11.3 Differential attack

       11.4 Known-plaintext attack

       11.5 Chosen-plaintext attack

       11.6 Chosen-ciphertext attack

       11.7 Specific attack

       11.8 Collision attack

       11.9 Occlusion attack

       11.10 Effects of additive and multiplicative noise

       References

       12 Optical security keys/masks

       12.1 Introduction

       12.2 Literature review

       12.3 Random phase mask

       12.4 Structured phase mask

       References

      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