arXiv 1007.01022010-07-01nlin.CD

利用带复位的可变延迟实现时延系统同步以增强通信中的安全性

Synchronization of time delay systems using variable delay with reset for enhanced security in communication

G. Ambika, R. E. Amritkar

备注：: 7 pages, 10 figures, submitted to Phys Rev E

摘要：

我们引入了一种通过单向耦合实现混沌同步的机制，该耦合具有在有限时间间隔内复位的可变延迟。在这里，我们将这种方法推广到时间延迟系统，并提出了一个新的密码系统的基础上。我们提出的稳定性分析适用于时间延迟系统，并补充这一点，在一个标准的时间延迟系统，如麦基玻璃系统的数值模拟。我们将该理论推广到多延迟系统，并提出了一种双信道方案，以实现具有增强安全性的通信方案。我们表明，由于同步通道进行信息从发射机只在复位时间的间隔，它是不容易重建。利用多延迟系统，通过对不同延迟时间的发射机变量进行线性组合，可以使分离的消息通道变得复杂。该方法具有额外的优点，即它可以被调整为延迟或预期同步，并且这些提供了两个独立于系统延迟的额外的基本密钥。

英文摘要：

We have introduced a mechanism for synchronizing chaotic systems by one way coupling with a variable delay that is reset at finite intervals. Here we extend this method to time delay systems and suggest a new cryptosystem based on this. We present the stability analysis as applied to time delay systems and supplement this by numerical simulations in a standard time delay system like Mackey Glass system. We extend the theory to multi- delay systems and propose a bi channel scheme for the implementation of the scheme for communication with enhanced security. We show that since the synchronizing channel carries information from transmitter only at intervals of reset time, it is not susceptible to reconstruction. The message channel being separate can be made complex by linear combination of transmitter variable at different delay times using mutiple delay systems. This method has the additional advantage that it can be adjusted to be delay or anticipatory in synchronization and these provide two additional basic keys that are independent of system delay.

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摘要：

英文摘要：

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