Revista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales

Encriptación óptica de información con recuperación libre de ruido

John Fredy Barrera, Roberto Torroba

Published Nov 16, 2015• 2 citations

Abstract

The information protection systems based on optical processors, employing a double random phase mask encryption technique, allow data securely handling, but the recovery is not noise-free. Although the system security is provided by the optical processor enabling the information encoding, we demonstrate in this contribution that noise-free recovery is indeed possible by including the quick response coding, without altering the data protection process. The information to be protected is first converted into a quick response code or QR code, and then this code is optically encrypted. The decrypted QR code exhibits the usual noise produced by the random phase masks along with the involved opto-digital processing. Finally, when scanning the decrypted QR code we recover the original information without noise. We include the theoretical description of the optical processor, as well as we show experimental results that corroborate the validity and applicability of the security system.© 2015. Acad. Colomb. Cienc. Ex. Fis. Nat. All rights reserved.

DOI: 10.18257/raccefyn.259

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