An optical symmetric cryptographic system with simultaneous encryption and transmission of binary data and secret key by using dual phase-shifting digital holography

Sang Keun Gil; Seok Hee Jeon; Jong Rae Jung

doi:10.1117/12.2005998

1 March 2013 An optical symmetric cryptographic system with simultaneous encryption and transmission of binary data and secret key by using dual phase-shifting digital holography

Sang Keun Gil, Seok Hee Jeon, Jong Rae Jung

Author Affiliations +

Proceedings Volume 8644, Practical Holography XXVII: Materials and Applications; 864417 (2013) https://doi.org/10.1117/12.2005998
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

We propose a new optical symmetric cryptographic system with simultaneous encryption and transmission of binary data and secret key by using dual phase-shifting digital holography. Dual phase-shifting digital holography contains two inner and outer interferometers which are used for encrypting data and a secret key at the same time. The technique using dual phase-shifting digital holographic interferometry is efficient because this scheme has an advantage of interference fringe data acquiring time. Binary information data is encrypted by the secret key by applying phase-shifting digital holographic method, and this secret key is also encrypted by phase-shifting digital holographic method and transmitted. Encrypted digital hologram in our method is Fourier transform hologram and is recorded on CCD with 256 gray-level quantized intensities. These encrypted digital holograms are able to be stored by computer and be transmitted over a communication network. With this encrypted digital hologram, the original binary data are decrypted by the same secret key. Simulation results show that the proposed method can be used for a cipher and security system.

Citation Download Citation

Sang Keun Gil, Seok Hee Jeon, and Jong Rae Jung "An optical symmetric cryptographic system with simultaneous encryption and transmission of binary data and secret key by using dual phase-shifting digital holography", Proc. SPIE 8644, Practical Holography XXVII: Materials and Applications, 864417 (1 March 2013); https://doi.org/10.1117/12.2005998

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