Optical security by use of a random selected binary phase code

Bor Wang, Ching Cherng Sun, Wei Chia Su

研究成果: 雜誌貢獻會議論文同行評審


An optical security system using a random selected binary phase code is proposed. A random binary phase encoded light is incident on a holographic recording material and writes gratings in the material with a reference plane wave. The recording material can be regarded as an optical lock while the phase code acts as the key. As the pixel number is 5×20, the decryption probability is less than 10-10 when arbitrary phase code is used for decryption. The decryption probability decreases dramatically as the pixel number increases. Furthermore, the security system performs good tolerance to data loss of the phase code.

頁(從 - 到)188-193
期刊Proceedings of SPIE - The International Society for Optical Engineering
出版狀態已出版 - 1999
事件Proceedings of the 1999 ALgorithms, Devices, and Systems for Optical Information Processing III - Denver, CO, USA
持續時間: 20 7月 199921 7月 1999


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