Horstmeyer, Roarke and Assawaworrarit, Sid and Yang, Changhuei (2014) Reconfigurable random bit storage using polymer-dispersed liquid crystal. , Pasadena, CA. (Submitted) https://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) | ||||||
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Additional Information: | Authors (RH & SA) contributed equally to this work. | ||||||
Record Number: | CaltechAUTHORS:20140409-124558217 | ||||||
Persistent URL: | https://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: | 09 Mar 2020 13:19 |
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