This paper introduces two new one-dimensional chaotic systems. They can be considered as an improvement of Logistic map, Sine map and Tent map. One is the chaotic system composed of Sine and Tent maps (STCS), the other is Logistic-Logistic chaotic system (L-LCS). Based on the two, an image encryption algorithm using dynamic row scrambling and Zigzag transformation is proposed. Firstly, the image is traversed in different directions of odd and even rows, and the results are scrambled with the chaotic sequence generated by STCS. Secondly, based on standard Zigzag scrambling idea, a special traversal method is used, that is, for the different permutation of the lower triangle and the upper triangle of the matrix (each triangular matrix does not contain the values on the main and sub diagonals) in order and direction. Then, combined with the chaotic sequence generated by L-LCS, two different diffusion formulas are used to diffuse the segmented image. Finally, this encryption scheme can also be extended to color images. Experimental simulation and performance analysis show that the encryption algorithm has better security.

本文介绍了两个新的一维混沌系统。它们可以被认为是Logistic地图，Sine地图和Tent地图的改进。一个是由正弦图和帐篷图（STCS）组成的混沌系统，另一个是Logistic-Logistic混沌系统（L-LCS）。在这两者的基础上，提出了一种采用动态行加扰和之字形变换的图像加密算法。首先，在奇数行和偶数行的不同方向上遍历图像，并使用由STCS生成的混沌序列对结果进行加扰。其次，基于标准的锯齿形加扰思想，使用一种特殊的遍历方法，即矩阵的下三角和上三角的不同排列（每个三角矩阵不包含主和副对角线上的值）在顺序和方向。然后，结合L-LCS产生的混沌序列，使用两种不同的扩散公式来扩散分割后的图像。最后，该加密方案还可以扩展到彩色图像。实验仿真和性能分析表明，该加密算法具有较好的安全性。