Application to optical secret key sharing cryptography using phase-shifting digital holography

Sang Keun Gil; Seok Hee Jeon; Jong Rae Jung

doi:10.1117/12.2289275

19 February 2018 Application to optical secret key sharing cryptography using phase-shifting digital holography

Sang Keun Gil, Seok Hee Jeon, Jong Rae Jung

Proceedings Volume 10558, Practical Holography XXXII: Displays, Materials, and Applications; 105580W (2018) https://doi.org/10.1117/12.2289275
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

We propose a new optical secret key sharing method based on the modified Diffie-Hellman key exchange protocol required in cipher system. The proposed secret key sharing algorithm is optically implemented by 2-step quadrature phase-shifting digital holographic encryption technique using orthogonal polarization. An unknown user’s private key is encrypted into three ciphered digital holograms which are supposed to be opened to the public for secret key sharing. The encrypted digital holograms are Fourier transform holograms and are recorded on CCDs with 256 gray level quantized intensities in the optical setup. The decryption with three ciphered digital holograms reconstructs each user’s private key information, which is used to generate the same shared secret key to each other. The advantage of the proposed method is that the optical setup has a kind of double key encryption scheme and provides the discretion of the user’s private key. The proposed method is very efficient in applying to a secret key sharing cryptosystem with high security strength.

Citation Download Citation

Sang Keun Gil, Seok Hee Jeon, and Jong Rae Jung "Application to optical secret key sharing cryptography using phase-shifting digital holography", Proc. SPIE 10558, Practical Holography XXXII: Displays, Materials, and Applications, 105580W (19 February 2018); https://doi.org/10.1117/12.2289275

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Digital holography

Binary data

Image encryption

Phase shifts

3D image reconstruction

Holograms

Cryptography

Show All Keywords

Keywords/Phrases

Search In:

Publication Years