计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (31): 61-64.
• 网络、通信、安全 • 上一篇 下一篇
龚黎华,杜 娟,范静辉,周南润
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GONG Lihua, DU Juan, FAN Jinghui, ZHOU Nanrun
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摘要: 通过初等数学运算对彩色图像的RGB三个分量进行复用,并结合基于分数哈特莱变换的双随机相位对其进行单通道加密。加密算法的密文不是一幅彩色图像,而是一复数矩阵。研究表明,该加密算法加密过程简单,密钥选择性大,且有较大的密钥空间和较高的安全性。
关键词: 图像加密, 分数哈特莱变换, 复用技术, 双随机相位
Abstract: The RGB components of a color image are multiplexed through elementary mathematical steps. Subsequently the single-channel multiplexed image is encrypted by the double random phase based on the fractional Hartley transform. The ciphertext of this encryption algorithm is not a color image but a complex matrix. It is shown that the encryption algorithm has a simple encryption process, enough keys to be chosen with large key space and high security.
Key words: image encryption, fractional Hartley transform, multiplexing technique, double random phase
龚黎华,杜 娟,范静辉,周南润. 结合分数Hartley变换和复用技术的图像加密算法[J]. 计算机工程与应用, 2012, 48(31): 61-64.
GONG Lihua, DU Juan, FAN Jinghui, ZHOU Nanrun. Image encryption algorithm combining fractional Hartley transform with multiplexing technique[J]. Computer Engineering and Applications, 2012, 48(31): 61-64.
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