Title :
Online full-phase digital holographic encryption based on electrically addressed spatial light modulators
Author :
Tu, H.-Y. ; Chiang, Jen-Shiun ; Chou, J.-W. ; Cheng, Chau-Jern
Author_Institution :
Dept. of Electron. Eng., St. John´s Univ., Taipei
Abstract :
A novel full-phase digital holographic encryption scheme with double random key masks, which are performed by electrically addressed liquid-crystal spatial light modulators for optical processing, is demonstrated. Phase-shifting digital holography is employed to generate the key holograms derived from the double key masks for implementing the encryption and decryption. The experimental results show the feasibility of the full-phase encryption scheme with computer-programmable key masks for securing data via online processing.
Keywords :
cryptography; holographic interferometry; liquid crystal devices; phase shifting interferometry; spatial light modulators; computer-programmable key masks; data security; decryption; double random key masks; electrically addressed liquid-crystal spatial light modulators; online full-phase digital holographic encryption; online processing; optical processing; phase-shifting digital holography;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.3263
