Département Optoélectronique, Laboratory L@BISEN, ISEN-BREST, 20 Rue Cuirassé Bretagne, CS 42807, 29228 Brest Cedex 2, France.
Opt Lett. 2010 Jul 1;35(13):2185-7. doi: 10.1364/OL.35.002185.
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.
我们提出并分析了一种双加密/解密方案，该方案的动机是最近对偏振编码的兴趣。与基于相位和振幅操纵的标准光学加密方法相比，这种依赖于 Mueller-Stokes 形式的加密过程在密钥加密设计方面提供了很大的灵活性。我们的算法的有效性通过对 256 灰度图像的偏振加密/解密过程的数值模拟进行了讨论。特别值得关注的是，这种加密算法对暴力攻击具有免疫性。
