Encrypted traffic side channel feature completion method and detection method

The invention discloses a side channel feature completion method and detection method for encrypted traffic, and belongs to the technical field of encrypted traffic detection. The side channel feature complementing method for the encrypted traffic comprises the following steps: constructing a training data set containing N complete session traffic packets; extracting a side channel feature Sc1 of the complete session flow packet, and translating and coding the side channel feature Sc1 to construct a pre-training training set X1; performing mask model training on the pre-training training set X1 to obtain a feature completion model; and obtaining a side channel feature completion result of the incomplete session flow packet based on the feature completion model. The objective of the invention is to improve the detection accuracy by enhancing the representation capability of the encrypted traffic. 本发明公开一种加密流量的侧信道特征补全方法和检测方法，属于加密流量检测技术领域。所述加密流量的侧信道特征补全方法包括：构建包含N个完整会话流量包的训练数据集；提取完整会话流量包的侧信道特征Sc1，并将所述侧信道特征Sc1平移和编码