基于Arnold变换及混沌加密的遥感影像机密信息隐藏研究

Study on Hidden Confidential Information of Remote Sensing Images Based on Arnold Transformation and Chaotic Encryption

目前数字水印技术已经相当成熟,但是鲜见关于遥感影像机密信息隐藏技术的报道。遥感影像中有些机密信息对没有权限的用户是不可见的,因此我们需要使用信息隐藏技术将其中的机密信息隐藏起来。本文提出了一种基于Arnold变换及混沌加密的机密信息隐藏算法,该算法首先使用Arnold变换和混沌加密技术对机密信息进行加密处理,然后采用基于DWT变换的信息隐藏算法将机密信息隐藏到伪遥感影像中。实验结果表明本算法对遥感影像机密信息可进行有效的隐藏,保护了机密信息的安全,由此可以看出信息隐藏技术在遥感影像机密信息安全方面有很重要的作用。

Currently, digital watermarking technology is quite mature, but the reports on the confidential information hiding technology of remote sensing images are rare. Some confidential information of remote sensing images is invisible to the users without permission, so therefore, we need to use information hiding technology to hide confidential information. A hiding algorithm of confidential information based on Arnold transformation and chaotic eneryption technology is presented The algorithm first uses Arnold transformation and chaotic encryption technology to encrypt confidential information and then uses the information hiding algorithm based on DWT transformation to hide the confidential information in the pseudo - remote sensing images. The experimental results show that the confidential information of remote sensing images can be effectively hidden by the algorithm which protects the security of the confidential information, so hiding confidential information in remote sensing images plays an important role in information security.