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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)

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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 Paper
Horstmeyer, Roarke0000-0002-2480-9141
Yang, Changhuei0000-0001-8791-0354
Additional Information:Authors (RH & SA) contributed equally to this work.
Record Number:CaltechAUTHORS:20140409-124558217
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44825
Deposited By: Aucoeur Ngo
Deposited On:09 Apr 2014 22:44
Last Modified:09 Mar 2020 13:19

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