Determination of the Parameters for a Lorenz System and Application to Break the Security of Two-channel Chaotic Cryptosystems
Determination of the Parameters for a Lorenz System and Application to Break the Security of Two-channel Chaotic Cryptosystems
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DOI：
10.1016/j.physleta.2008.06.066
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发表时间：
2006-06
影响因子：
2.6
通讯作者：
A. Orúe;G. Álvarez;M. Romera;G. Pastor;F. Montoya;Shujun Li
中科院分区：
文献类型：
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作者：
A. Orúe;G. Álvarez;M. Romera;G. Pastor;F. Montoya;Shujun Li
本文描述了如何确定双通道密码系统中混沌Lorenz系统的参数值。首先利用Lorenz系统的几何性质缩小参数搜索空间，然后通过最小化加密过程产生的平均干扰噪声功率，直接从密文中准确地确定参数。
This paper describes how to determine the parameter values of the chaotic Lorenz system used in a two-channel cryptosystem. The geometrical properties of the Lorenz system are used firstly to reduce the parameter search space, then the parameters are exactly determined, directly from the ciphertext, through the minimization of the average jamming noise power created by the encryption process.