Preface

From the birth of the first computer in the world to the increasing popularity of Internet today, the development speed of computer can be described as rapid progress, which also brings human civilization into the information age. The emergence of computer network makes people have a more choice in obtaining and transmitting information, and it is a choice that can provide unprecedented “liberalization”. It makes the speed, quality and scope of information spread a qualitative leap in time and space.
    With the wide application and rapid development of computer in various fields of society, the popularization speed of network is beyond people’s imagination. The information transmitted, stored and processed through the network is growing exponentially. The network has become an indispensable infrastructure in the information society. However, network security and network application security have always been the focus of people’s close attention. The openness of the network, especially the Internet network, and the existence of security threats such as system defects and loopholes, malicious attacks, computer viruses, misoperation of staff and weak security awareness, make the security of various network-based applications such as e-commerce, e-government and so on are seriously challenged. Therefore, strengthening network security management and improving network security and availability has become a major issue related to national security, economic development and social stability, and it has important strategic significance.
    With the advent of the Internet era, the “moral vacuum” appears in virtual space, which has a great impact on the traditional social life order. College students are an important part of network users. According to the survey, with the acceleration of university information process and the improvement of campus network access conditions, college student’ network behavior is becoming more and more common, and Internet access has become an important part of college students’ learning, communication, entertainment and other life. At the same time, due to the increasing number of crimes on the Internet, cyber crime has become a social and public security issue that developed countries and developing countries have to pay attention to. standardizing network behavior and preventing network crime has become one of the subjects that the whole society must face.

前 言

从世界上第一台计算机诞生到今天互联网的日益普及，计算机的发展速度可谓突飞猛进，从而也把人类文明带入信息时代。计算机网络的出现，使人们在获取和传递信息时又多了一种选择，而且是一种能够提供空前“自由化”的选择。它使信息的传播速度、质量与范围在时间和空间上有了质的飞跃。
      随着计算机在社会各个领域中的广泛应用和快速发展，网络的普及速度超出了人们的想象，通过网络传输、存储和处理的信息星几何级数增长，网络已经成为信息社会不可或缺的基础设施。但是网络安全以及网络应用安全一直以来都是人们密切关注的焦点，网络尤其是 Internet 网络的开放性加上系统的缺陷与漏洞、恶意攻击、计算机病毒、工作人员的误操作以及安全意识淡薄等安全威胁的存在，使得基于网络的各种应用如电子商务、电子政务等的安全受到了严重挑战。因此，加强网络安全管理、提高网络安全性和可用性已经成为关系国家安全、经济发展和社会稳定的一个重大课题，具有重要的战略意义。
      随着网络时代的到来，虚拟空间出现“道德真空”，对传统的社会生活秩序造成很大冲击。大学生是网络用户的重要组成部分。调查获悉，随着高校信息化进程的加快和校园内网络接入条件的改善，大学生的网络行为越来越普遍，上网成为大学生学习、 交往、娱乐等生活的重要内容。同时，由于网络上的犯罪现象越来越多，网络犯罪已成为发达国家和发展中国家不得不关注的社会公共安全问题。规范网络行为，防治网络犯罪，已成为整个社会必须面对的课题之一。