Optical coding for storing confidential data

Qizhong Huang; Jinglei Du; Yongkang Guo; Ding Wang

doi:10.1117/12.279452

24 October 1997 Optical coding for storing confidential data

Qizhong Huang, Jinglei Du, Yongkang Guo, Ding Wang

Proceedings Volume 3159, Algorithms, Devices, and Systems for Optical Information Processing; (1997) https://doi.org/10.1117/12.279452
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Two cryptographic methods for storing graphic information are presented in this paper. The information is encoded by phase modulation or the angular coding. The information are read out by means of holographic interference. Without decoding card, no one can read out the information stored in the informational card.

Citation Download Citation

Qizhong Huang, Jinglei Du, Yongkang Guo, and Ding Wang "Optical coding for storing confidential data", Proc. SPIE 3159, Algorithms, Devices, and Systems for Optical Information Processing, (24 October 1997); https://doi.org/10.1117/12.279452

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