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混沌信号以其宽带、类噪声以及不可长期预测的特性在保密通信领域获得了广泛的关注。文章提出利用混沌保密光通信技术来保障电力通信网中的传输安全性,首先搭建了传统的基于光-电-光结构的混沌光加密装置,研究该混沌保密光通信系统在电力通信网中应用可能存在的安全问题,针对传统方案中时延特征的安全性问题,提出了消除混沌时延特征参数的方案,并通过实验验证了混沌时延特征参数的隐藏。同时,针对参数估计的攻击方式,分析了混沌保密光通信系统的安全性能。而对于暴力破解,分析了该方案的密钥空间,证明该方案的密钥空间获得极大的扩展,说明了暴力破解的困难性,证明了该方案可在电力通信网中保障传输的安全性。

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