关键词: 信息隐藏分析, 大数据, 网络, 大数据安全, 比较研究

Abstract: With the explosive growth of information on the Internet, information security has caused wide public concern over the recent years. Steganalysis as a popular direction in the field of information security, is also facing the challenges posed by big data. The data over network always presents in huge amount and comes from multiple sources and different qualities, which makes the steganalysis methods under laboratory become invalid. This paper takes digital images as an example, at first introduces the research situation of steganalysis under laboratory environment, and then analyzes the characteristics of image under the big data over network. Steganalysis methods under laboratory always have dramatic performance decrease under the big data over network by experiment. The paper focuses on the research on the mismatch of steganalysis of the big data over networks, researches on the key technology and the latest progress form four aspects which are the research on the data set, the process on the feature, the improvement of the classifier and the change of steganalysis framework . In the end, the potential problems and future challenges of steganalysis of the big data over network are pointed out, which provide a relatively comprehensive reference basis for future research.

Key words: steganalysis, big data, network, big data security, comparison study