Optical and electro-optical architectures for the compression and encryption of discrete signals and imagery: 2. Data encryption

Mark S. Schmalz

doi:10.1117/12.177726

1 June 1994 Optical and electro-optical architectures for the compression and encryption of discrete signals and imagery: 2. Data encryption

Mark S. Schmalz

Author Affiliations +

Proceedings Volume 2238, Hybrid Image and Signal Processing IV; (1994) https://doi.org/10.1117/12.177726
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

In this second of a series of papers, we present optical architectures for the encryption of signals or imagery that are defined over discrete domains. As in Part 1, we emphasize the mapping of candidate algorithms and describe encryption transforms in terms of image algebra (IA) expressions, as well as notation specific to this study. both of which were reviewed in Part 1. The feasibility of our algorithms is verified by presenting schematic optical architectures that implement the corresponding IA expressions, together with pertinent analyses. In particular, we discuss the optical implementation of data encryption via mono- and polyalphabetic substitutions, transpositional and polygraphic ciphers, vector quantization, and DES (data encryption standard). Analyses and discussion emphasize computation cost inclusive of propagation time, as well as the information loss expected from physical devices such as spatial light modulators and beam deflectors.

Citation Download Citation

Mark S. Schmalz "Optical and electro-optical architectures for the compression and encryption of discrete signals and imagery: 2. Data encryption", Proc. SPIE 2238, Hybrid Image and Signal Processing IV, (1 June 1994); https://doi.org/10.1117/12.177726

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