title: Dual encryption scheme of images using polarized light.
abstract: We propose and analyze a dual encryption/decryption scheme, motivated by recent interest in polarization encoding. Compared to standard optical encryption methods, which are based on phase and amplitude manipulation, this encryption procedure relying on Mueller-Stokes formalism provides large flexibility in the key encryption design. The effectiveness of our algorithm is discussed, thanks to a numerical simulation of the polarization encryption/decryption procedure of a 256 gray-level image. Of additional special interest is the immunity of this encryption algorithm to brute force attacks.
authors.affiliation: Département Optoélectronique, Laboratory L@BISEN, ISEN-BREST, 20 Rue Cuirassé Bretagne, CS 42807, 29228 Brest Cedex 2, France. ayman.al-falou@isen.fr
authors.forename: A
authors.initials: A
authors.lastname: Alfalou
authors.forename: C
authors.initials: C
authors.lastname: Brosseau