Title :
Phase-only decryption by use of a single spatial light modulator
Author :
Vu, Tien Viet ; Kim, Nam ; An, Jun-Won ; Gil, Sang-Keun
Author_Institution :
Dept. of Inf. & Commun. Eng., Chungbuk Nat. Univ., Cheongju
Abstract :
We propose an experimental demonstration for the phase-only optical decryption based on kinogram encoding. Only one spatial light modulator is used to simultaneously display the encrypted information and the decrypting key for decryption. We investigate the effect of binary and multiphase keys on the security level of the encrypted information. The accepted displacement of the decryption key within the system is also determined. The free misalignment of the Fourier lens is experimentally demonstrated.
Keywords :
Fourier transform optics; cryptography; encoding; lenses; optical images; spatial light modulators; Fourier lens; binary keys; encryption; kinogram encoding; multiphase keys; phase-only decryption; security level; single spatial light modulator; Cryptography; Data mining; Gas insulated transmission lines; Image converters; Image reconstruction; Laser beams; Lenses; Optical filters; Optical modulation; Phase modulation;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391678
