1.前言“2016年全球互联网用户达到35亿人,约占世界总人口的一半。到2020年,接入互联网的终端设备预计将达到120亿台。”——国际电信联盟《全球网络安全指数》。2017年7月万物互联的今天,网络攻击带来的收益和影响会越来越大,安全技术的研发总是滞后于发展,目前业界安全技术还不能真正解决安全的问题,一般都是就已经出现的安全问题进行研发解决方案,采取的多是被动防御。但每次事 1. Introduction “Global Internet users reached 3.5 billion in 2016, accounting for about half of the world’s total population, and the number of terminals accessing the Internet is expected to reach 12 billion by 2020.” - International Telecommunication Union Global Network Safety rate". July 2017 Internet of things today, the benefits and impact of network attacks will be more and more, the development of security technology is always lagging behind the development of the current industry security technology can not really solve the security problem, are generally already Emergence of security issues for research and development solutions, mostly passive defense. But every time