Research And Application Of Adaptive Information Hiding Of The Same Type

Recently, with the development of large-scale data, there are many different types of files in the data platform, and with the popularity and development of the network, the transmission of the data files over the network has become more frequent, it is convenient for people, but also brings the issue of information transmission security. Information hiding technology is an effective means to solve the problem. Information hiding technology is a technical means for information transmission, which can enhance the information confusing by hiding the private information in the cover file that can be transmitted in public,so as to achieve the purpose of safe transmission. At the same time, due to the different file types on the platform, the different hiding algorithms for different types of documents, so we design and implement an adaptive information hiding system based on Word, PDF and image on the basis of general hiding model.In the paper, we introduce the general model of information hiding technology, describe the functions of each module and the achievements in hiding information, Then we analyze the problems of the general hiding model for different types of data, and design an adaptive information hiding model. We introduce the hiding algorithm based on Word, PDF and image respectively.Through the comparison of different hiding algorithms, we choose the appropriate hiding algorithm to implement or improve from the aspects of algorithm efficiency and robustness, and construct a hiding algorithm library. By increasing the hiding algorithm library and carrier file library, the appropriate hiding algorithm and the carrier file can be chosen automatically according to the level and the tag of data files. In this paper, we describe the overall structure of the model, the hiding process and the function of each module in detail,introduce the design and implementation of the same type of file adaptive information hiding system. Finally, functional testing and security testing are carried out to verify the system implemented in this paper.Finally, we implement and test the adaptive information hiding module based on large data platform architecture. After testing, the adaptive information hiding algorithm can achieve the function for Word, PDF and image file. After imperceptibility testing, the secret-containing file maintains a high degree of similarity with the original carrier file. At the same time, we improved the LSB image hiding algorithm to improve the robustness of large-capacity information hiding while carrying out different angle and different area attack attacks. In this paper, we design and implement an adaptive hiding model, which combines different types of files according to the privacy level of files and different hiding algorithms, and enhances the security of the file during the transmission while keeping the file type unchanged.