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Reconfigurable random bit storage using polymer-dispersed liquid crystal

Horstmeyer, Roarke and Assawaworrarit, Sid and Yang, Changhuei (2014) Reconfigurable random bit storage using polymer-dispersed liquid crystal. , Pasadena, CA. (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20140409-124558217

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Abstract

We present an optical method of storing random cryptographic keys, at high densities, within an electronically reconfigurable volume of polymer-dispersed liquid crystal (PDLC) film. We demonstrate how temporary application of a voltage above PDLC's saturation threshold can completely randomize (i.e., decorrelate) its optical scattering potential in less than a second. A unique optical setup is built around this resettable PDLC film to non-electronically save many random cryptographic bits, with minimal error, over a period of one day. These random bits, stored at an unprecedented density (10 Gb/mm^3), can then be erased and transformed into a new random key space in less than one second. Cryptographic applications of such a volumetric memory device include use as a crypto-currency wallet and as a source of resettable “fingerprints" for time-sensitive authentication.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1403.2419arXivDiscussion Paper
ORCID:
AuthorORCID
Horstmeyer, Roarke0000-0002-2480-9141
Additional Information:Authors (RH & SA) contributed equally to this work.
Record Number:CaltechAUTHORS:20140409-124558217
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140409-124558217
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44825
Collection:CaltechAUTHORS
Deposited By: Aucoeur Ngo
Deposited On:09 Apr 2014 22:44
Last Modified:13 Mar 2017 17:51

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