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Proceedings Paper

An optical symmetric cryptographic system with simultaneous encryption and transmission of binary data and secret key by using dual phase-shifting digital holography
Author(s): Sang Keun Gil; Seok Hee Jeon; Jong Rae Jung
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Paper 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.

Paper Details

Date Published: 1 March 2013
PDF: 8 pages
Proc. SPIE 8644, Practical Holography XXVII: Materials and Applications, 864417 (1 March 2013); doi: 10.1117/12.2005998
Show Author Affiliations
Sang Keun Gil, Univ. of Suwon (Korea, Republic of)
Seok Hee Jeon, Univ. of Incheon (Korea, Republic of)
Jong Rae Jung, Suwon Science College (Korea, Republic of)


Published in SPIE Proceedings Vol. 8644:
Practical Holography XXVII: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove, Editor(s)

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