Security enhancement of double-random phase encryption by amplitude modulation.
Security enhancement of double-random phase encryption by amplitude modulation.
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DOI：
10.1364/ol.33.001575
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发表时间：
2008-07
期刊：
影响因子：
3.6
通讯作者：
X. C. Cheng;L. Cai;Y. R. Wang;X. Meng;H. Zhang;X. F. Xu;X. Shen;G. Dong
中科院分区：
文献类型：
--
作者：
X. C. Cheng;L. Cai;Y. R. Wang;X. Meng;H. Zhang;X. F. Xu;X. Shen;G. Dong
传统的双随机相位编码由于系统的线性而容易受到选择或已知明文攻击。我们介绍了一种技术，打破这种线性与秘密幅度调制的加密方案。作为附加密钥，该操作可以显著增强系统的安全性。一系列的计算机模拟结果表明了该方法的有效性和对已知明文攻击的抵抗能力。讨论了幅度调制器的设计和参数选择。
Conventional double-random phase encoding is vulnerable to a chosen or known plaintext attack owing to the linearity of the system. We introduce a technique to break down this linearity with an undercover amplitude modulation in the encryption scheme. As an additional key, this operation can significantly enhance the security of the system. A series of computer simulations have shown the effectiveness of this method and its resistance against the known plaintext attack. The design and parameter choice of the amplitude modulator is also discussed.