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1引言随着计算机网络通信技术的发展,网络已深入到个人生活和商业行为中,如社交,网络支付,商业往来通信等,于是网络通信安全就变得愈发重要。为此广大技术人员开始采用VPN,TBSG等传统的信息加密手段来实现网络数据的加密通信,这在一定程度上保障了数据的安全,但无法隐藏通信双方的关系。随着斯诺登事件的爆发,匿名通信类软件Tor,多跳VPN等出现,似乎人们找到了隐藏通信关系的方法,然而事实并非如此,此类软件仅仅实现了对通道的匿名掩护,
1 Introduction With the development of computer network communication technology, the network has been deeply involved in personal life and business practices, such as social networking, online payment, commercial correspondence, etc. Therefore, network communication security becomes more and more important. To this end the majority of technical staff began to use VPN, TBSG and other traditional means of information encryption to achieve encrypted data communication network, which to some extent, to protect the security of the data, but can not hide the relationship between the two communications. With the outbreak of Snowden, Tor, multi-hop VPN with anonymous communications software, etc., it seems that people have found a way to hide the communication relationship. However, this is not the case. Such software merely implements anonymous screening of channels,