云计算环境下网络内部信息隐藏算法研究

针对目前信息隐藏算法安全性低、不可感知性差以及抗干扰性弱等特点，提出一种新的云计算环境下网络内部信息隐藏算法。介绍了云计算环境下网络内部信息嵌入载体过程，给出了嵌入过程流程图。阐述了DCT网络信息隐藏算法原理，通过DCT变换对云计算环境下网络内部信息进行处理，其主要包括离散余弦变换与离散余弦逆变换。分析了DCT算法隐藏容量，结合DCT算法自身特点，对不同类型信息设定出相应的量化参数，最大限度增加DCT算法的最大可嵌入信息容量。给出DCT算法具体信息隐藏过程和提取过程。实验结果表明，所提算法不可感知性、抗干扰性以及安全性强，载体的可嵌入信息容量大。

Research on Network Information Hiding Algorithm in cloud computing environment

In view of the fact that the current information hiding algorithms are low in security, poor in perception and weak in anti-jamming, a new information hiding algorithm in the cloud computing environment is proposed. This paper introduces the process of embedded information carrier in the cloud computing environment, and gives the flow chart of embedded process. This paper expounds the principle of DCT network information hiding algorithm, and deals with the internal information of the network in the cloud computing environment by the DCT transform, which mainly includes discrete cosine transform and discrete cosine inverse transform. The hidden capacity of DCT algorithm is analyzed, and the corresponding quantization parameters of different types of information are set up according to the characteristics of DCT algorithm. The maximum embedded information capacity of DCT algorithm is increased to the maximum. The specific information hiding process and extraction process of DCT algorithm are given. Experimental results show that the proposed algorithm is not sensitive, robust and robust, and the carrier can be embedded with large information capacity.