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Article Dans Une Revue Journal of Optics Année : 2012

Robustness against attacks of dual polarization encryption using the Stokes–Mueller formalism

Résumé

The security of our recently proposed dual polarization encryption scheme of images is evaluated by numerical simulations. This consists of testing the resistance of the scheme against brute force, known-plaintext, chosen-plaintext and video sequence attacks. While some attacks are ineffective (brute force, video sequence) others are effective (known-plaintext, chosen-plaintext), but only under certain assumptions. An optimization of the setup, which is based on a regular rotation of polarization optics angles (polarizers, wave plates), is proposed associating the use of a high dynamic range for the key image, or the use of a phase-only spatial light modulator in the target and in the key image channel. The possibility of the attacker decrypting an unknown image is thus strongly reduced. The precision required for optical specifications is also evaluated, in order to ensure a good decryption for an authorized user.

Dates et versions

hal-01277704 , version 1 (23-02-2016)

Identifiants

Citer

Mathieu Dubreuil, Ayman Alfalou, C. Brosseau, P. Katz, M. Alam. Robustness against attacks of dual polarization encryption using the Stokes–Mueller formalism. Journal of Optics, 2012, 14 (9), pp.094004. ⟨10.1088/2040-8978/14/9/094004⟩. ⟨hal-01277704⟩
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