Abstract

A digital holography-secured scheme is presented by using binary phase or amplitude. The input image is encrypted based on double random phase encoding, and a complex-valued wavefront in the charge-coupled device plane is extracted by using digital holography. Subsequently, only the phase component of the extracted complex-valued wavefront is maintained, and is further binarized. Different from conventional methods, an interesting finding in this paper is that in addition to binary phase, binary amplitude originating from the binarized phase pattern can also be applied as ciphertext. During optical decoding, the decrypted image cannot visually render clear information about the input, and the authentication is further conducted. The binary phase or amplitude pattern can be flexibly applied as ciphertext, and the fully optical approach can be implemented for the decoding. The ciphertext is effectively compressed, which can facilitate the storage and transmission in practical applications.

© 2016 Optical Society of America

Optical information authentication using phase-only patterns with single-pixel optical detection

Yin Xiao, Lina Zhou, and Wen Chen
Appl. Opt. 60(10) B1-B7 (2021)

Double-random-phase encryption with photon counting for image authentication using only the amplitude of the encrypted image

Yong Wang, Adam Markman, Chenggen Quan, and Bahram Javidi
J. Opt. Soc. Am. A 33(11) 2158-2165 (2016)

Photon counting imaging and phase mask multiplexing for multiple images authentication and digital hologram security

Sudheesh K. Rajput, Dhirendra Kumar, and Naveen K. Nishchal
Appl. Opt. 54(7) 1657-1666 (2015)

Security analysis of phase-only DRPE based on known-plaintext attack using multiple known plaintext–ciphertext pairs

Kazuya Nakano, Masafumi Takeda, Hiroyuki Suzuki, and Masahiro Yamaguchi
Appl. Opt. 53(28) 6435-6443 (2014)

Practical image encryption and decryption by phase-coding technique for optical security systems

Junji Ohtsubo and Ayano Fujimoto
Appl. Opt. 41(23) 4848-4855 (2002)