计算机网络安全与防范外文翻译文献
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网络安全英语论文Title: The Importance of Network Security in the Digital Age Introduction:In today's digital age, where the internet has revolutionized the way we communicate, work, and conduct business, the importance of network security cannot be overstated. With cyber threats continuously evolving, organizations and individuals need to prioritize effective measures to protect their sensitive information, privacy, and the integrity of their systems. This paper explores the significance of network security and proposes practical steps to safeguard against potential cyber attacks.Body:1. The Growing Threat LandscapeSince the advent of the internet, cybercrimes have proliferated, posing significant threats to individuals, businesses, and governments. Hackers, with increasingly sophisticated tools and techniques, exploit vulnerabilities in networks, aiming to steal financial information, personal data, and intellectual property. Ransomware attacks, distributed denial of service (DDoS) attacks, and phishing scams are just a few examples of the multitude of cyber threats faced today.2. Potential Impacts of Network Security BreachesNetwork security breaches can have severe consequences, including financial losses, reputation damage, and legal implications. Companies may face the loss of valuable digital assets and customer data, leading to a loss of trust and credibility.Moreover, breaches in critical infrastructure systems, such as power grids and healthcare systems, can result in devastating consequences for society as a whole. Therefore, prioritizing robust network security measures is imperative to mitigate potential damages.3. Network Security MeasuresTo combat cyber threats effectively, organizations and individuals should implement a multi-layered approach to network security. This includes:a) Firewalls: Deploying firewalls acts as the first line of defense against unauthorized access, ensuring that only legitimate traffic is allowed into a network.b) Encryption: Encrypting data in transit and at rest helps to protect sensitive information from unauthorized access, ensuring that even if a breach occurs, the data remains unreadable.c) Strong Passwords and Two-factor Authentication: Encouraging the use of complex passwords and implementing two-factor authentication adds an extra layer of security, making it harder for attackers to gain access to sensitive accounts.d) Regular Software Updates and Patches: Keeping software, operating systems, and applications up to date helps to address any known vulnerabilities and weaknesses, mitigating the risk of exploitation.e) Employee Education and Awareness: Establishingcomprehensive training programs to educate employees about cybersecurity threats, such as phishing and social engineering, helps to build a strong human firewall and foster a security-conscious culture within an organization.4. Collaboration and Government InvolvementGiven the global nature of cyber threats, collaboration between governments, organizations, and individuals is crucial to combating cybercrimes effectively. Governments should enact strong legislation and regulations to protect individuals' privacy and organizations' sensitive information. Additionally, international cooperation is essential to sharing information about emerging threats, best practices, and conducting joint investigations.Conclusion:In conclusion, network security is a critical aspect of our digital lives and is paramount in protecting individuals, organizations, and critical infrastructure from cyber threats. Implementing robust network security measures, such as firewalls, encryption, and regular updates, along with fostering a culture of cybersecurity awareness, is key to safeguarding against potential attacks. It is imperative that governments, organizations, and individuals work together to address this ever-evolving threat landscape and ensure a secure and resilient digital environment.。
网络安全参考文献网络安全参考文献网络安全是当前互联网时代所面临的重大挑战之一。
为了解决这个问题,研究者们进行了大量的研究工作,并发布了许多与网络安全相关的参考文献。
本文将介绍一些经典的网络安全参考文献,以帮助读者更好地了解网络安全领域的研究进展。
1. Anderson, R.(2001)《Security Engineering: A Guide to Building Dependable Distributed Systems》:该书由Ross Anderson撰写,是网络安全领域的经典参考书之一。
它涵盖了网络安全的各个方面,包括密码学、网络协议、访问控制、恶意软件等。
这本书具有很高的实用性,对于系统管理员、安全专业人员和网络开发人员来说是一个重要的参考资料。
2. Stallings, W.(2011)《Cryptography and Network Security: Principles and Practice》:该书由William Stallings撰写,是密码学和网络安全领域的经典教材之一。
它介绍了密码学的基本原理、公钥基础设施、安全协议等内容。
这本书对于学习密码学和网络安全的读者来说是一个很好的参考材料。
3. NIST(2014)《特别出版物800-30》:该文献是美国国家标准与技术研究所(NIST)发布的一份特别出版物,介绍了风险管理的基本原理和实践。
它提供了一种系统性的方法来评估和处理网络安全风险,对于组织和企业来说是一份非常实用的参考资料。
4. Pfleeger, C.P. and Pfleeger, S.L.(2002)《Security in Computing》:该书由Charles P. Pfleeger和Shari Lawrence Pfleeger撰写,涵盖了计算机安全的各个方面。
它介绍了安全策略制定、脆弱性分析、防御机制等内容,对于计算机安全的初学者和从业者来说是一本非常有价值的参考书。
全新视角:网络与数据安全防护措施英文版
A Fresh Perspective: Cybersecurity Measures for Network and Data Protection
In today's digital age, the importance of cybersecurity cannot be overstated. With the increasing reliance on technology, the need to protect networks and data has become more crucial than ever. Cyber threats are constantly evolving, making it essential for organizations to stay ahead of potential risks.
One of the key aspects of cybersecurity is implementing effective protective measures to safeguard networks and data. This can include utilizing firewalls, encryption, and multi-factor authentication to prevent unauthorized access. Regularly updating software and conducting security audits are also important steps in maintaining a secure network environment. Furthermore, employee training and awareness play a significant role in cybersecurity. Educating staff on best practices for handling sensitive information and recognizing phishing attempts can help prevent security breaches. Implementing strong password policies and enforcing data encryption can also enhance overall security measures.
网络安全英文论文Cybersecurity: An Analysis of Current Threats and Mitigation StrategiesAbstractWith the rapid growth of the internet and digital technologies, cybersecurity has become a critical concern for organizations and individuals alike. This paper aims to analyze the current cybersecurity threats and possible mitigation strategies. The analysis is conducted based on recent studies and surveys conducted by cybersecurity experts and organizations. The findings demonstrate that the most prevalent cybersecurity threats include malware attacks, phishing scams, hacking attempts, and data breaches. To mitigate these threats, organizations are encouraged to implement robust security measures, such as firewalls, antivirus software, encryption algorithms, and two-factor authentication. Additionally, promoting cybersecurity awareness among employees through regular training sessions and workshops is suggested. Ultimately, a comprehensive approach that involves technological solutions and human resilience is necessary to safeguard against evolving cybersecurity threats.IntroductionThe internet has transformed the way we live, work, and communicate. However, along with its vast benefits, the digital realm has also given rise to numerous security challenges. Cybersecurity refers to the protection of electronic data and systems from unauthorized access, use, or destruction. Itencompasses a wide range of threats, such as hacking, data breaches, viruses, and phishing scams. The consequences of a cybersecurity breach can be severe, including financial losses, compromised sensitive information, and damage to reputation.Current Cybersecurity Threats1. Malware Attacks: Malware, short for malicious software, includes viruses, worms, Trojan horses, and ransomware. Malware can infect systems through email attachments, downloads, or vulnerabilities in software. Once installed, it can grant unauthorized access to hackers and cause significant damage, such as stealing sensitive data, corrupting files, or encrypting data for ransom.2. Phishing Scams: Phishing is a fraudulent activity where attackers impersonate legitimate organizations through emails, text messages, or phone calls to deceive individuals into revealing sensitive information, such as passwords, credit card details, or social security numbers. Successful phishing attacks can lead to identity theft or unauthorized access to personal accounts.3. Hacking Attempts: Hackers use various techniques to exploit vulnerabilities in computer systems, networks, or software. They may employ password cracking, SQL injection, or distributed denial-of-service (DDoS) attacks to gain unauthorized access, manipulate data, or disrupt services. Hacking attempts can result in data breaches, financial losses, or damage to critical infrastructure.4. Data Breaches: Data breaches involve the unauthorized access,theft, or exposure of sensitive information held by organizations. Personal, financial, or healthcare data can be compromised and misused for identity theft, fraud, or blackmail. Data breaches can occur due to inadequate security measures, insider threats, or hacking activities.Mitigation Strategies1. Robust Security Measures: Organizations should implement a multi-layered security approach, including firewalls, intrusion detection systems, and antivirus software. Regular updates to software and patches should be applied to address vulnerabilities and protect against known threats. Additionally, encryption algorithms can ensure the confidentiality of data both in transit and at rest.2. Two-Factor Authentication: Enforcing two-factor authentication adds an extra layer of security by requiring users to provide two forms of identification, such as a password and a unique verification code. This method significantly reduces the risk of unauthorized access, even if passwords are compromised.3. Employee Training and Awareness: Organizations should conduct regular cybersecurity training sessions to educate employees about potential threats and safe online practices. This includes educating them about phishing scams, malware, and the importance of strong passwords. By enhancing employee awareness, organizations can develop a stronger line of defense against social engineering attacks.ConclusionAs the digital landscape continues to evolve, so do the cybersecurity threats. Organizations and individuals must remain vigilant to protect their sensitive information and digital assets. By implementing robust security measures, promoting cybersecurity awareness, and staying updated on the latest threats and mitigation strategies, individuals and organizations can mitigate the risks associated with cyber threats. Through a comprehensive approach that combines technological solutions and human resilience, a safer digital future can be achieved.References:[Insert references here]。
网络安全英文论文The Importance of Cybersecurity in the Digital AgeIn today's digital age, where almost every aspect of our lives is connected to the internet, cybersecurity has become one of the most pressing issues of our time. With the rise of cybercrime and the increasing reliance on technology, safeguarding sensitive information and protecting the integrity of digital systems has become paramount. This paper will discuss the importance of cybersecurity, its challenges, and potential solutions to address the growing threats.First and foremost, cybersecurity is essential for protecting individuals, businesses, and governments from the ever-evolving tactics of cybercriminals. With the ability to compromise personal and financial information, cybercriminals pose a significant threat to individuals' privacy and security. Identity theft, online scams, and ransomware attacks are just a few examples of the devastating effects cybercrime can have on individuals and their financial security. Moreover, businesses are also vulnerable to cyber threats, as data breaches can result in significant financial losses, damage to reputation, and legal consequences. Therefore, implementing robust cybersecurity measures is crucial for ensuring the safety and stability of individuals and organizations alike.However, building effective cybersecurity infrastructure is not without its challenges. The rapidly evolving landscape of cybersecurity requires constant adaptation to new threats. Cybercriminals are constantly developing sophisticated techniques to bypass security systems, making it difficult for organizations tostay ahead. Furthermore, the shortage of skilled cybersecurity professionals poses a significant challenge in creating and maintaining resilient cybersecurity strategies. The demand for cybersecurity experts is projected to exceed the supply, creating a gap that needs to be adequately addressed. Additionally, the lack of cybersecurity awareness among individuals also contributes to the vulnerability of systems. Education and training programs need to be implemented to enhance the general understanding of cybersecurity and its importance.To address these challenges, a multi-pronged approach to cybersecurity is required. Firstly, collaboration between governments, businesses, and individuals is crucial for combating cyber threats effectively. Information sharing and cooperation can help identify vulnerabilities and develop proactive measures to mitigate potential risks. Secondly, investing in research and development is essential for staying ahead of cybercriminals. By continuously improving security technologies and tools, organizations can better protect their assets and data. Moreover, fostering cybersecurity education and awareness at all levels is crucial for creating a culture of cyber hygiene. This includes training employees to identify and respond to potential threats and promoting responsible online behavior among individuals.In conclusion, the importance of cybersecurity in today's digital age cannot be overstated. With the ever-increasing reliance on technology, individuals, businesses, and governments must prioritize the protection of sensitive information from cybercrime. While there are challenges to overcome, through collaboration, investment in research and development, and the promotion ofcybersecurity education, it is possible to create a secure digital ecosystem. Only by working together can we ensure the safety and privacy of our digital world.。
网络安全技术论文参考文献网络安全技术是保护网络免受各种威胁和攻击的一种技术手段。
在研究网络安全技术的过程中,参考文献是非常重要的,可以帮助研究者了解相关领域的前沿进展和研究成果。
以下是一些关于网络安全技术的论文参考文献,供您参考。
1. Kandula, S., Pope, S., Ives, R., & Nichols, K. (2007). Scalable threat-aware forwarding in differentiated services networks. ACM SIGCOMM Computer Communication Review, 37(3), 59-70.本文讨论了在不同服务网络中对威胁进行可扩展的转发和鉴别的方法。
研究者提出了一种新的威胁感知路由算法,可以提高网络的安全性和性能。
2. Wang, H., & Jajodia, S. (2008). Data mining for intrusion detection. IEEE Transactions on Knowledge and Data Engineering, 20(8), 1105-1117.该论文介绍了一种基于数据挖掘的入侵检测方法。
研究者使用了一种基于异常检测的数据挖掘方法来识别网络中的入侵行为,提高了网络的安全性和性能。
3. Sion, R., & Falkner, K. (2007). Toward intrusion prevention as a service. Computer, 40(2), 62-68.该文研究了一种以服务形式提供入侵防范的方法。
研究者提出了一种基于云计算的入侵预防服务模型,可以帮助用户提高网络的安全性和性能。
4. Somayaji, A., & Forrest, S. (1997). Automated response using system-call arguments. ACM Transactions on Information andSystem Security (TISSEC), 1(4), 262-288.该论文介绍了一种基于系统调用参数的自动响应方法。
网络安全英语小作文及翻译Title: Importance of Cybersecurity in the ModernDigital Landscape。
With the rapid advancement of technology, the importance of cybersecurity cannot be overstated. Intoday's interconnected world, where information is exchanged at the click of a button, ensuring the security of data and networks is paramount. Cybersecurity refers to the practice of protecting systems, networks, and data from digital attacks. These attacks can come in various forms, such as malware, phishing, ransomware, and denial-of-service attacks, among others.首先,网络安全对于保护个人隐私至关重要。
在数字化时代,我们的个人信息如社交媒体账户、银行信息、健康记录等都存储在网络上。
如果这些信息被黑客窃取,可能会导致严重的后果,包括财务损失、身份盗窃、甚至个人安全受到威胁。
因此,加强网络安全措施,确保个人隐私不受侵犯,至关重要。
Secondly, cybersecurity is crucial for safeguarding businesses and organizations. In today's digital economy, companies rely heavily on digital systems to storesensitive information, conduct transactions, and communicate with clients and partners. A cyber-attack on a business can result in financial losses, damage to reputation, and even legal consequences. Therefore, investing in robust cybersecurity measures is essential for protecting intellectual property, trade secrets, and the overall integrity of the organization.Thirdly, cybersecurity plays a vital role in national security. Governments around the world store vast amounts of sensitive information, including classified documents, infrastructure plans, and military strategies, on digital systems. A breach of these systems can compromise not only national security but also the safety of citizens. Additionally, cyber-attacks can be used as a tool for espionage, sabotage, and warfare between nations. Thus, ensuring the cybersecurity of government networks iscrucial for protecting the interests of the state and maintaining geopolitical stability.In conclusion, cybersecurity is essential in the modern digital landscape to protect personal privacy, secure businesses and organizations, and safeguard national security. It requires a comprehensive approach involving technology, policies, and awareness among users. By investing in robust cybersecurity measures and staying vigilant against emerging threats, we can mitigate therisks posed by cyber-attacks and build a safer and more secure digital world.。
关于网络安全作文英文英文回答:Network security involves protecting networks and the data transmitted over them from unauthorized access, use, disclosure, disruption, modification, or destruction. It ensures the confidentiality, integrity, and availability of information, as well as the systems and resources that support them.Network security measures include:Access control: Restricting access to authorized users and devices.Authentication: Verifying the identity of users and devices.Authorization: Determining the level of access granted to authorized users.Data encryption: Protecting data from unauthorized access.Intrusion detection and prevention: Monitoring networks for suspicious activity and preventing attacks.Firewall: Blocking unauthorized access to networks.Network segmentation: Dividing networks into smaller, isolated segments to limit the spread of threats.Patch management: Updating software and systems to address vulnerabilities.Security awareness training: Educating users on network security best practices.中文回答:网络安全涉及保护网络和通过网络传输的数据,使其免遭未经授权的访问、使用、披露、破坏、修改或销毁。
Computer network virus and precautionsWith the new network technology and application of the continuous rapid development of the computer network shouldUse of becoming increasingly widespread, the role played by the increasingly important computer networks and humanMore inseparable from the lives of the community's reliance on them will keep growing. WithWith the continuous development of computer technology, the virus has become increasingly complex and senior, the new generation ofComputer viruses make full use of certain commonly used operating systems and application software for protection of the weak lowSpots have rampant in recent years as the popularity of the Internet in the world, will be attached document containing the virusThe situation in the mail has been increasing spread of the virus through the Internet, making the spread of the virus speedSharp also increased, by an ever-increasing scope of the infection. Therefore, the protection of the security of computer networks will beWill become increasingly important.A computer virusThe definition of computer virus computer virus (Computer Virus) in the "people's republic of ChinaThe computer information system security protection regulations "which has been clearly defined, the virus" refers to the preparation orComputer program inserted in the damage or destruction of computer data functions, affecting computer useSelf-replication and can a group of computer instructions, or code. " Second, network virusWith the development of network and the Internet, a wider spread, the greater New harmThe virus emerged This is the Internet virus. The virus is an emerging concept in the traditionalThe virus was not classified network virus this concept, because the development of networks, the traditional virusThe network also has a number of characteristics. Today's Internet virus is a broad notion of aAs as long as it is carried out using the Internet to spread destruction can be known as network viruses, such as:"Love the back door", "Panda burning incense."Third, network virus and the distinction between computer virusThe original common computer virus is nothing more than the devastating formatted hard drive, delete systemWith the users documents, databases, etc. destruction. The mode of transmission is through nothing but also by virus infectionMutual copy of the software, carrying the virus, such as the use of pirated optical discs, such as infection disk systemsThe pilot virus and infected executable file virus, in addition to a network virus These are the common characteristics of the virus, but also steal users with remote data, remote control of the other sideComputers and other damaged properties, such as Trojan and consumption of funding the operation of the network computerSource collapse of the network server worm.Fourth, the network against virusNetwork destructive virus, will directly affect the work of the network, ranging from lowering speed videoRing for the efficiency of the network, while in the collapse, undermining the server information to a multi-year work destroyedDan. Because viruses and other network annually fraud led to economic losses of over 16 billion yuan,But this figure is constantly rising year by year. The next few years, the size of the market will reach Security60 billion yuan. One antivirus software experts pointed out: "Network avian flu virus even more." Such as: "XiongCat burning incense "In addition to virus infection through the web site users, the latest virus also through QQLoopholes in propagating itself through file-sharing networks, the default sharing, weak password systems, U disk and windowsForms bottom of the top mobile hard drives, and other means of communication. While LAN once a computer machineFor infection, it can spread through the entire network instant, or even within a very short period of time can be infectedThousands of computers, can lead to serious networks. Symptoms of poisoning in the performance of computersThere are enforceable. Exe files have become a strange pattern, the pattern shown as "PandaBurning incense, "and then System blue screen, restart the frequent, hard drive data destruction, serious entire companyAll computer LAN will all poisoning. "Panda burning incense," only more than half a month, a few varieties have highOf more than 50, and the number of its users infected constantly expanding. Makes infected, "Panda burn incense" diseaseThe personal drug users has been as high as several million people infected with a few more corporate users is rising exponentially. NetworkMore on the computer network the greater the harm caused by the virus.V. network transmission of the virus Features1. Infection fast: single machine environment, the virus can only be passed from one computer disketteTo another, and in the network can be adopted by the rapid spread of network communication mechanism. According to measurementSet against a typical PC network use in normal circumstances, once a computer workstation sickDrugs, and will be online within 10 minutes in the several hundreds of all infected computers.2. Proliferation of a wide range: in the network due to the spread of the virus very quickly and spread to encompass a large area, not only the rapid transmission of all LAN computer, but also through remote workstations virus in一瞬Inter spread to thousands of miles away.3. Dissemination in the form of complex and varied: computer viruses in general through the network "Station server workstation "channels of communication, but in the form of complex and diverse communication.4. Difficult to completely wipe: the standalone computer virus carriers sometimes can be deleted documentsOr low-level formatted drives, and other measures to eliminate the virus completely, and the network once a computer workClean stations failed to disinfect the entire network can be re-infected by the virus, or even just completed removalThe work of a workstation is likely to be on-line by another workstation virus infection. Therefore,Only workstations in addition to killing viruses, and can not solve the virus harm to the network is.6, the type of network virusAs the network increasingly developed, the type of network virus has been increasing, generally summed up asThe following categories:1. WormIt is the use of the transmission mechanism of replication and dissemination network, the mode of transmission is through the networkAnd e-mail, the prefix is Worm. For example, in recent years the great harm "Nimda" virus is DemodexA worm virus. The virus used Microsoft's Windows operating system, computer fluWith this virus, will continue to automatically dial-up Internet access and use information in the document or the addressSharing network spreads, and ultimately undermine the most important user data.2. Macro VirusHong virus is a Storage in the document or template in the Acer computer virus. The prefixMacro, once open such documents, which Acer will be implemented, then the virus would AcerBeen enabled transferred to the computer, and in the presence of the Normal template. From then on, all sinceThe document will be kept moving "infection" that the Hong virus, and if other users opened the fluDocuments with the virus, the Hong virus will be transferred to his computer. 3. Destructive procedures virusThe prefix destructive virus program is: Harm. The characteristics of this virus is a good in itselfLook at the user clicks on icons to temptation, when the user clicks on the virus, the virus will direct usersComputer generated destruction. If C formatted disk (Harm.formatC.f), the killer orders (Harm.Command.Killer).4. System virusThe prefix system for the virus: Win32, PE, Win95, W32, W95, and so on. These virusesThe characteristics of the general public can be infected with the windows operating system *. exe and *. dll file,And through these documents for dissemination. If the CIH virus.5. Backdoor virusBackdoor virus prefix is Backdoor. The total of such virus through network - Sowing, opened the back door to the system to the user and potential safety problems.6. Bundling machine virusBundled-virus prefix is: Binder. The characteristics of this virus is the virus writers will useSpecific procedures will be bundled with a number of applications such as QQ, IE bundled up on the surfaceIt is normal to see the paper, when users run these bundled virus, will run these applications on the surfaceProcedures, and then tied to the operation of hidden virus, which caused harm to the user. Such as: baledTied QQ (Binder.QQPass.QQBin), the system killer (Binder.killsys).7. Script virusThe virus is usually JavaScript scripting code prepared by the malicious code, prefix is usuallySpript, with the general nature of advertising, will modify your IE Home, modify registry, and other information,Computer user inconvenience caused.8. Planting procedures virus virusThis virus is of the public will run from the in vivo release of one or several newUnder the virus to the system directory, by the release of a new virus damage. If the glaciers are sowing(Dropper.BingHe2.2C), MSN striker (Dropper.Worm.Smibag).9. Joke virusThe prefix is the virus joke: Joke. Also called prank virus. The characteristics of this virus is itself a nice user clicks on icons to temptation,When the user clicks of this virus, the virus will be made to disrupt the operation scare users, in factThe virus did not destroy any computer user. Such as: ghost (Joke.Girlghost) virus.10. Trojan hacking virusTrojan its prefix is: Trojan, hackers virus prefix General for Hack. Public special Sex is through the network or system loopholes into the user's system and hidden, and then leaked to the outside worldUser information, hackers virus there is a visual interface to the user's computer remotelyControl. Trojans, hackers often paired virus emerging, Trojan horse virus responsible for the invasive power usersBrain, and hackers virus will be passed to the Trojan horse virus control. . General Trojan such as QQNews tail Trojan Trojan.QQ3344, there are big Trojan.LMir.PSW.60. Virus FormA PSW or anything like PWD general said that the virus has stolen password function,If some hacker programs, such as network枭雄her.Client.7, the mode of transmission and network anti-virusThrough the above, we can see that e-mail viruses spread Click homepage, users download,Others implant, implant, and other loopholes through five computer transmission, so long as holding these fiveA thoroughfare, we will be able to live better anti-virus network.计算机网络病毒与防范随着各种新的网络技术的不断应用和迅速发展, 计算机网络的应用范围变得越来越广泛, 所起的作用越来越重要, 计算机网络与人类的生活更加密不可分, 社会对其的依赖程度也会随之不断增长。
网络的可信性,容错性,可靠性,安全性和生存性的分析比较(原文名字A Comparative Analysis of Network Dependability,Fault-tolerance,Reliability,Security, and Survivabilit)M. Al-Kuwaiti IEEE成员, N. Kyriakopoulos IEEE高级成员 S. Hussein, Member IEEE成员摘要人们用一些定性和定量的术语来描述众所周知的信息系统、网络或基础设施的性能。
然而,为严格评价那些系统的性能而定义了的一些术语中,存在一些重复定义或者歧义的问题。
这种问题的产生是因为信息技术学科包含了各种各样的学科,而那些学科中已经定义了自己独特的用语。
本文提出了一种系统的方法,来确定五个被广泛应用的概念的通用和互补的特征,这五个概念分别是:可信性,容错性,可靠性,安全性和生存性。
并分析了五个概念的定义,探讨了它们之间的相似性和差异。
关键字:可信性,容错性,可靠性,安全性和生存性。
/////////////////////////////////////////////////////////////////////////////////// ///概述各种基础操作的混乱使建立减少混乱的影响改善基础的性能的机制显得非常重要。
问题从基础的构成开始出现。
它们组成系统,这些系统通过不同的学科发展成熟了。
信息基础设施的硬件部分包括来自各个领域的电气工程设备,软件部分包括计算机科学的所有学科的发展,这里仅举两个例子。
不同领域的产品组成复杂的系统,包括人员组成,给以分析和改善基础设施运作为目的的高效机制的发展增添了困难。
其中一个问题可以被归结于描述在不同领域的表现的术语的歧义。
一个设计者或用户面对的术语中一些可能是互相补充的或是同义的或者是介于两者之间的。
因此,有必要为制定一些术语而达成一致,这些术语的含义不涉及具体学科的并且能被最广泛使用。
计算机网络安全与防范外文翻译文献 1 计算机网络安全与防范外文翻译文献
(文档含中英文对照即英文原文和中文翻译) 翻译: 计算机网络安全与防范 1.1引言 计算机技术的飞速发展提供了一定的技术保障,这意味着计算机应用已经渗透到社会的各个领域。在同一时间,巨大的进步和网络技术的普及,社会带来了巨大的经济利润。然而,在破坏和攻击计算机信息系统的方法已经改变了很多的网络环境下,网络安全问题逐渐成为计算机安全的主流。 计算机网络安全与防范外文翻译文献
2 1.2网络安全
1.2.1计算机网络安全的概念和特点 计算机网络的安全性被认为是一个综合性的课题,由不同的人,包括计算机科学、网络技术、通讯技术、信息安全技术、应用数学、信息理论组成。作为一个系统性的概念,网络的安全性由物理安全、软件安全、信息安全和流通安全组成。从本质上讲,网络安全是指互联网信息安全。一般来说,安全性、集成性、可用性、可控性是关系到网络信息的相关理论和技术,属于计算机网络安全的研究领域。相反,狭隘“网络信息安全”是指网络安全,这是指保护信息秘密和集成,使用窃听、伪装、欺骗和篡夺系统的安全性漏洞等手段,避免非法活动的相关信息的安全性。总之,我们可以保护用户利益和验证用户的隐私。 计算机网络安全有保密性、完整性、真实性、可靠性、可用性、非抵赖性和可控性的特点。 隐私是指网络信息不会被泄露给非授权用户、实体或程序,但是授权的用户除外,例如,电子邮件仅仅是由收件人打开,其他任何人都不允许私自这样做。隐私通过网络信息传输时,需要得到安全保证。积极的解决方案可能会加密管理信息。虽然可以拦截,但它只是没有任何重要意义的乱码。 完整性是指网络信息可以保持不被修改、破坏,并在存储和传输过程中丢失。诚信保证网络的真实性,这意味着如果信息是由第三方或未经授权的人检查,内容仍然是真实的和没有被改变的。因此保持完整性是信息安全的基本要求。 可靠性信息的真实性主要是确认信息所有者和发件人的身份。 可靠性表明该系统能够在规定的时间和条件下完成相关的功能。这是所有的网络信息系统的建立和运作的基本目标。 可用性表明网络信息可被授权实体访问,并根据自己的需求使用。 不可抵赖性要求所有参加者不能否认或推翻成品的操作和在信息传输过程中的承诺。计算机网络安全与防范外文翻译文献 3 处理不可抵赖性的措施之一是使用数字签名技术。 可控性指示控制网络信息传输和内容的能力上。例如,禁止违法和不良信息通过公共网络传输。
1.3计算机网络所面临的威胁 计算机网络所面临的各种威胁有:恶意攻击,泄漏软件,计算机病毒和自然灾害。 1.3.1恶意攻击 恶意攻击被认为是计算机网络的严重威胁之一。根据建议可以将人为破坏分为主动攻击和被动攻击。主动攻击旨在破坏网络和信息,通常使用的方式有修改、删除、弄虚作假、欺骗、病毒和逻辑炸弹。一旦成功,它可能会停止网络系统的运行,甚至整个系统的瘫痪。被动攻击是为了获取信息,这通常是进行窃取秘密信息,我们知道的,如在不影响正常运行的情况下进行的窃取贸易和商业秘密、项目计划、投标数字和个人信息。恶意攻击,不管是模仿或者被动,都可能会损坏严重的电脑网络,导致机密数据的泄漏,最终造成不可挽回的损失。
1.3.2软件的泄漏和后门(计算) 有两种软件泄漏:一种是通过建议精心设计来控制系统和窃取信息为将来使用所准备,另一种是意外,比如因为设计师的疏忽或其他技术元素。然而,由于这些漏洞的存在导致了严重的隐藏的网络安全威胁。例如,为了方便地进入操作系统开发者没有为系统设置进入密码,这将为黑客提供进入系统的通道。进行作业系统时,一些系统进程一直在等待某些条件,一旦一次满意的条件下出现,这一进程将继续运行,这也可以被黑客利用。否则,虽然一直保持保密,由程序员设置了供自己使用的一些后门程序(计算),如果它们泄露出去,或由其他人发现这可能会带来巨大的损害和信息丢失。 计算机网络安全与防范外文翻译文献 4 1.3.3计算机病毒破坏网络安全
计算机病毒是一个专门的计算机程序,它通过各种渠道比如磁盘,光盘和计算机网络进行复制和传播。它在20世纪80年代首先发现,到现在的数字已经提高到世界各地的10,000多个。同时,隐瞒、传染和破坏也进一步发展。随着互联网的飞速发展,计算机病毒的扩散速度已经在很大程度上加快,大大破坏和传染世界各地资源。这场灾难对每一个国家和整个世界的信息系统产生了一个严重的影响。美国大约63%的计算机被传染了病毒, 9%的情况下已经导致了超过10万美元的损失,根据著名的MIS系统管理和数据任务营销公司进行的研究。在1996年,计算机病毒已经造成美国制造业大1亿美元的经济损失。互联网提供了计算机病毒容易扩散的环境,同时增加了消灭他们的困难。计算机病毒的传播,不仅破坏网络,也使网络信息泄漏。计算机病毒已经严重威胁到网络安全,特别是专用网络。 病毒代码很小,通常附在其他文件或程序末尾,因此它们很容易隐藏在系统内部。病毒的自我复制能力使其在网络上传播时能够传染给其他文件和程序,病毒一旦扩散到网络上就非常难以追踪了。 1987年,计算机病毒在美国四处蔓延,而且第一种计算机病毒“小球”在当年年底传播到我国。从那以后,已经发现进口和国内的病毒。迄今为止,计算机病毒已经增加到20,000多种;其中90%以上能攻击微型计算机。病毒的基本特征有:
(1) 传染:计算机病毒作为一个程序,能自我复制到其他正常程序或者系统的某些部件上,例如磁盘的引导部分。这是病毒程序的基本特征。随着网络日益广泛发展,计算机病毒能够在短时间内通过网络广泛传播。 (2) 潜伏:隐藏在受感染系统内的病毒并不立即发作;相反,在它发作前,需要一定时间或具备某些条件。在潜伏期内,它并不表现出任何扰乱行动,因此很难发现病毒并且病毒能够继续传播。一旦病毒发作,它能造成严重破坏。 计算机网络安全与防范外文翻译文献 5 (3) 可触发性:一旦具备某些条件,病毒便开始攻击。这一特征称作可触发性。利用这一特征,我们能控制其传染范围和攻击频率。触发病毒的条件可能是预设的日期、时间、文件种类或计算机启动次数等。 (4) 破坏:计算机病毒造成的破坏是广泛的—它不仅破坏计算机系统、删除文件、更改数据等,而且还能占用系统资源、扰乱机器运行等。其破坏表现出设计者的企图。
通过我们已经学过的知识,我们知道病毒有如下的分类: (1) 按寄生分类 按寄生,计算机病毒可分成引导病毒、文件病毒和混合病毒。*引导病毒:指寄生在磁盘引导部分的那些计算机病毒。它是一种常见病毒,利用计算机系统通常不检查引导部分的内容是否正确的弱点,并且留存在内存中,监视系统运行,一有机会就传染和破坏。按寄生在磁盘的位置,它能进一步分成主引导记录病毒和段引导记录病毒。前者传染硬盘的主引导部分,例如“marijuana”病毒、“2708”病毒、“porch”病毒;段记录病毒传染硬盘上的常用段记录,例如“小球”病毒、“女孩”病毒等。
(2) 按后果分类 从后果看,计算机病毒能分成“良性”病毒和“恶性”病毒。“良性”病毒将破坏数据或程序,但不会使计算机系统瘫痪。这种病毒的始作俑者大多是胡闹的黑客—他们创造病毒不是为了破坏系统,而是为了炫耀他们的技术能力;一些黑客使用这些病毒传播他们的政治思想和主张,例如“小球”病毒和“救护车”病毒。“恶性”病毒将破坏数据和系统,导致整个计算机瘫痪,例如CHI病毒,“Porch”病毒。这些病毒一旦发作,后果将是无法弥补的。 计算机网络安全与防范外文翻译文献
6 应当指出,“危险”是计算机病毒的共同特征。“良性”病毒并非完全不造成危险,而只是危险后果相对较轻。“良性”只是一个相对概念。事实上,所有计算机病毒都是恶性的。
1.4计算机网络安全防范措施 为了保护网络资源,我们应该指导一些管理和合理的说明。此外,我们必须进行有关的技术措施,旨在解决网络安全中存在的问题,实现网络和数据的保护。在此之后,可以保证定期循环,可以确保合法用户的利益。目前,处理网络安全的措施如下:防火墙技术,加密技术,访问控制技术和病毒防护技术。
1.4.1防火墙技术 在目前保护计算机网络安全的技术措施中,防火墙可以分割本地网络和主网络,在保护网络和外部网络之间限制信息访问和传输。 防火墙是关闭在网络拓扑结构和服务上不安全因素来提高网络的工具。它保护的对象之一就是明确在网络接近临界点的模块,而它远离是外部威胁来保护网络。因此,在公司它首先是适合在专门的网络,尤其是连接公共网络。防火墙三个的基本功能如下: 过滤。它可以拒绝未经授权的电脑主机发送TCP / IP协议数据,并拒绝接受未经授权的服务链接要求。 网络地址转换。翻译内部主机的IP地址以避免通过外部监视器被检测,或者我们可以说成IP伪装。 代理服务。代表主机电脑应用方面具有较高水平,能够完全中断连接之间的跨主机和外部网络层。 我们应该更加注重的是没有防火墙可以提供绝对的保护。防火墙具有边界,其中包括来自防火墙外部其他攻击方式的无用保护;难以阻止病毒污染的软件或文件的传输,几乎没有拒绝构成内部用户的威胁;几乎可以防止运行数据的攻击。此外,由于防火墙的安全计算机网络安全与防范外文翻译文献 7 政策在公司是由网络管理员来控制的,所以他的道德标准似乎更为重要。
1.4.2 加密技术 加密的目的是为了保护数据、文件、密码和网络上的控制信息,以及保护网络上数据传输。这个过程实际上是进行了各种加密算法,用最低的成本获得一些保护。在大多数情况下,加密是保证信息保密性和重要性的唯一途径。加密系统可以根据分类代码之间信息的发送者和接受密码的方式,通常被划分成对称加密代码(单个键)和公共加密代码(双击键),如典型的代表DES和RSA。 伴随着高加密产生的优势之一是对称加密代码管理与安全方式传输信息的难度。公众的加密代码的优势是它可以适用于网络不限成员名额的要求,并实现数字签名和验证。然而,复杂的算法将使数据加密速度放缓。随着现代电子技术和加密技术的发展,公共密码编码算法将逐渐成为网络安全加密系统的主流。人们通常将常规密码和公共密码在网络安全中一起同应用。 常规的网络数据加密具有链路、节点和端到端的方式。作为最常用的加密方式,链路加密可以通过链路层和物理层在网络和硬件条件下实现。它用来保护通信节点传输的数据,对用户是透明的。节点加密提高了链路加密和克服链路加密很容易被非法访问的缺陷。它也可以在协议传输层加密,使原始节点和目的节点之间传输的数据进行加密保护。端到端的加密是在网络层,在表示层中的网络和数据传输加密具有高水平的水准,而不是低级别的协议信息。相比链路加密它往往是由软件完成,它具有较低的成本和更高的安全性。