0引言随着21世纪的到来,计算机网络技术得到了飞速发展,人类社会进入了互联网信息化时代,对计算机网络的使用越来越广泛,生活质量也得以大大提升。目前由于社会生活中的各个领域都在使用计算机网络技术,上至政府机关、科研单位、企事业单位下至学校、家庭都离不开计算机网络技术。计算机网络技术所带来的巨大的信息以及其强大的互动交流功能,有效地提高了各个领域的工作效率,加强了各领域间的信息交流,有力地推动了社会信息化的进程。但是,与此同时计算机网络的安全问题日益突出,各种计算机犯罪和网络安全问题给个人、单位甚至是国家 0 Introduction With the advent of the 21st century, the rapid development of computer network technology, human society has entered the era of Internet information, the use of computer networks more widely, quality of life has also been greatly enhanced. At present, due to the use of computer network technology in all fields of social life, from the government agencies, research institutes, enterprises and institutions down to schools, families are inseparable from the computer network technology. The tremendous information brought by computer network technology and its powerful interactive communication function have effectively raised the work efficiency in various fields, strengthened the exchange of information in various fields and effectively promoted the process of social informatization. However, at the same time, the security of computer networks has become increasingly prominent. Various computer crimes and cybersecurity issues have given individuals, organizations and even countries