Aim. The introduction of the full paper reviews some relevant matters and then proposes the exploration mentioned in the title, whose result we believe is effective and appears to have a promising future in the encryption field and is fully explained in sections 1 and 2. Their core consists of; "We propose a color digital image encryption algorithm based on the advantages of stream cipher and GA. Firstly, the algorithm divides the image into blocks; then it uses XOR operation to alter the pixel value in each block; next, it exerts different three - dimensional Arnold transforms, which are based on different times of iterations and transformation matrixes, on the different color components; finally, it encrypts the image by applying XOR operation to the image data and the key stream (generated by GA). " Section 2 is entitled "Analysis of Security of Algorithm". Subsection 2. 1 deals with the theoretical analysis of the security of algorithm. Subsection 2. 2 deals with experimental results, presented in Figs. 3 through 12 and Tables 1 and 2, and their analysis. Theoretical analysis and numerical experiments show preliminarily that the algorithm is excellent with large key space, high key sensibility, satisfactory encryption, and being able to resist common attacks effectively.%本文结合流密码和遗传算法的优点,提出了一种彩色数字图像加密算法.该算法首先将图像分块,各块内象素相互异或,再对不同颜色分量执行迭代次数和变换矩阵均不同的三维Arnold变换,最后将遗传算法产生的密钥流与图像数据相异或来对图像进行加密.经过理论分析和实验验证,该算法具有密钥空间大、密钥敏感性高,加密效果好、并能有效抵御常见攻击等优点.
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