Multiplexing of encrypted data using fractal masks |
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Authors: | John F Barrera Myrian Tebaldi Dafne Amaya Walter D Furlan Juan A Monsoriu Néstor Bolognini Roberto Torroba |
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Affiliation: | Grupo de óptica y Fotónica, Instituto de Física, Universidad de Antioquia, A.A 1226 Medellín, Colombia. |
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Abstract: | In this Letter, we present to the best of our knowledge a new all-optical technique for multiple-image encryption and multiplexing, based on fractal encrypting masks. The optical architecture is a joint transform correlator. The multiplexed encrypted data are stored in a photorefractive crystal. The fractal parameters of the key can be easily tuned to lead to a multiplexing operation without cross talk effects. Experimental results that support the potential of the method are presented. |
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