浅析网络安全面临的挑战及其主要威胁

随着计算机网络在人类生活领域中的广泛应用,针对重要信息资源和网络基础设施的入侵行为和企图入侵行为的数量仍在持续不断增加,网络攻击对生活造成了极大的威胁。计算机病毒不断地通过网络产生和传播,计算机网络被不断地非法入侵,重要情报、资料被窃取,甚至造成网络系统的瘫痪等等,因此计算机网络安全面临着各种挑战与威胁。     

Fixing wireless security

Wireless network security is a dynamic topic. New problems are discovered at a rapid rate. Academic researchers found a problem with WEP and within a few months programs were available on the Internet that allowed anyone with a Linux machine to crack the keys used on WEP networks. Conversely, vendors and standards bodies are constantly pushing the state of wireless security to counter these problems and prepare for the next generation of issues.     

无线局域网的安全技术研究

对无线局域网(WLAN)产业而言,一直存在缺乏统一标准和安全保障两大瓶颈。详细分析了目前WLAN采用的安全技术和安全标准及其安全隐患,并提出了相应的改进方案。     

无线局域网技术安全发展的研究

本文主要是阐述了无线局域网的发展历史和目前无线局域网面临的一些安全问题,然后分析了无线局域网安全存在的风险,再提出了解决无线接入安全的方案,最后对无线安全技术发展趋势进行了前瞻性的展望。     

Autonomic 802.11 wireless LAN security auditing

The authors describe their Distributed Wireless Security Auditor (DWSA), which works toward finding unauthorized wireless access points in large-scale wireless environments while providing an autonomic and unobtrusive layer of network protection.     

无线网络安全课程的探讨

随着互联网发展,无线网络的用户人数越来越多,无线技术应用在各个领域,无线网络的安全性变得越发重要。在各高校与信息安全学科相关的课程体系中,都含有网络安全或者信息安全的课程,但是很少高校单独将无线网络安全设置成为一门独立的课程。本文探讨了无线网络安全课程设置的必要性,并基于作者教学实践和对国外部分高校的课程设置的研究。提出了无线网络安全课程的设置和内容。使得相关专业的毕业生有能力从事无线网络安全方面的研究。     

Quantum security in wireless sensor networks

Security in sensor networks, though an important issue for widely available wireless networks, has been studied less extensively than other properties of these networks, such as, for example, their reliability. The few security schemes proposed so far are based on classical cryptography. In contrast, the present paper develops a new security solution, based on quantum cryptography. The scheme developed here comes with the advantages quantum cryptography has over classical cryptography, namely, effectively unbreakable keys and therefore effectively unconditionally secure messages. Our security system ensures privacy of the measured data field in the presence of an intruder who listens to messages broadcast in the field.     

4G无线网络的安全体系设计

随着无线网络的不断发展,移动通信技术从3G网络逐步朝4G网络发展,由于4G无线网络的特点,导致4G系统中的安全隐患也越来越严重.在本文的研究中,通过对4G网线网络安全隐患的分析,从无线网络终端、无线网络和无线业务三个方面对4G系统安全体系设计进行研究.     

浅析无线网中的信息安全

随着信息化时代脚步的来临,我国科学技术有了空前的发展,现如今,生活在信息化时代中的我们,已经把计算机和无线网络看作我们生活、学习的主要工具,无线网络以其独特的优越性逐渐成为发展的主流,它的应用缩短了人与人之间的距离.然而随着无线网络的发展,安全性问题成为发展无线网络的瓶颈.文中主要讨论了无线网络面临的风险,并详细说明了无线网络的安全防护和应对无线网络安全的策略.     

Providing for wireless LAN security. 2

I examine technology for addressing the numerous security concerns raised in the first article. Unhappily, there are few easy answers-WLANs are still inherently insecure. However, more choices are now available to manage WLAN security. Key to understanding these choices are security deployment architectures, the technologies they rely on, and effective security management.     

基于3G的无线远程控制安防系统设计

将嵌入式系统与3G网络技术相结合,设计了一套基于3G技术的无线远程控制安防报警系统。该系统在结构上分为现场声光报警板块、煤气防险短信发送装置和3G网络发射与显示装置3个部分。布防时,一旦出现陌生人影,现场声光报警板块就会将探测到的警情信号传输至3G网络发射与显示装置,并同时向用户发送短信,且提示通过浏览器观察屋内情况。如果屋内煤气等易燃易爆气体泄漏,则触发煤气防险短信发送装置,该装置向用户发出内容上不同于前者的短信进行报警,提示在手机浏览器上查看监控信息。整个报警系统大小可以灵活配置,具有较好的发展前景与实用价值。     

无线传感器网络安全的关键技术

基于无线传感器网络,能够应用密钥管理技术、身份认证技术、防火墙、安全路由等作为网络安全控制中的关键技术,有效避免无线传感器网络安全漏洞的发生,确保无线传感器网络通信安全。本文详细分析无线传感器网络的关键技术。     

无线通信网络中的安全机制研究

详细介绍了当前蜂窝移动通信网络和自组织(AdHoc)网络中采用的主要安全机制。简要地讲述蓝牙系统中的安全机制。     

无线传感器网络的体系结构和应用安全

随着物联网应用领域的不断扩大,无线传感器网络的应用也以前所未有的速度迅速拓展。无线传感器网络(WSN)具有覆盖区域广泛、检测精度高、可以远程监控和高容错性等优点,使其在军事、工业、农业、环境保护、医疗系统、智能交通等各领域得到了广泛的应用。虽然无线传感器网络的应用前景非常广泛,但仍存在很多技术问题需要解决,包括最大限度减少传感节点的功耗,以及如何有效提高网络系统容量、减少碰撞阻塞等。为了有效解决以上技术难题,通过对MSN的体系结构以及具体应用领域的研究,提出了解决办法。     

无线传感器网络中的跨层安全设计

无线传感器网络(WSNs)发展迅速,可广泛应用于军事、工业及科学等领域。传感器网络在无线信道中工作,其节点有限的能源、计算能力、存储能力使得其面临着严重的安全问题。已提出的许多安全方法都基于分层设计的概念。分析了分层安全设计的局限性,回顾了现存的W SNs的安全设计方案,提出了一些新的跨层解决办法,并指出了传感器网络中跨层安全的研究方向。     

The price of security in wireless sensor networks

With the increased application of wireless sensor networks (WSNs) to military, commercial, and home environments, securing the data in the network has become a critical issue. Several security mechanisms, such as TinySec, have been introduced to address the need for security in WSNs. The cost of security, however, still mostly remains an unknown variable. To provide a better understanding of this cost we have studied three aspects of WSNs security: encryption algorithms, modes of operation for block ciphers, and message authentication algorithms. We have measured and compared their memory and energy consumption on both MicaZ and TelosB sensor motes. The results of our experiments provide insight into the suitability of different security algorithms for use in WSN environments and could be used by WSN designers to construct the security architecture of their systems in a way that both satisfies the requirements of the application and reasonably uses the constrained sensor resources.     

浅谈无线局域网网络安全及其防范对策

随着各移动公司本地无线局域网(WLAN)的建成开通必将面临着其网络安全问题,该文通过对WLAN的原理、常见安全威胁进行总结,提出WLAN安全的解决方法。