中文摘要：

为提高图像加密算法的安全性能,提出了一种基于复合混沌系统的改进的高级加密标准加密算法。该算法将Logistic混沌序列与Chebyshev混沌序列相结合,产生2种新的混沌映射。一种复合混沌矩阵作为高级加密标准的轮密匙,进行像素置乱;另一种复合混沌矩阵组成S盒,进行位置置乱。另外,对图像像素点进行位移及列混合操作,进一步达到位置置乱的目的,实现动态变换密钥的高级加密标准图像的加密。实验结果表明,该算法具有较高的密钥敏感性、良好的置乱效果及高效性。

英文摘要：

In order to improve the safety performance of the image encryption algorithm, an advanced encryption standard encryption algorithm is proposed based on hybrid chaotic system. Logistic combined with Chebyshev chaotic sequence to produce two kinds of new chaotic sequences, the first hybrid chaotic matrix was used as the advanced encryption standard round keys for pixel scrambling and the another hybrid chaotic matrix is used as S-box for position scrambling. In addition, do shift row and mixcolumn operation will be shifted to change the pixel position and realize the dynamic transform key of advanced encryption standard image encryption. Experiment shows that the algorithm possesses the features of sensitive key dependence, good scrambling effect and efficiency.