Computer security principles and practice 2nd edition pdf


Stallings, William. Computer security: principles and practice / William Stallings, Lawrie Brown.—2nd ed. p. cm. ISBN (alk. paper). COMPUTER SECURITY PRINCIPLES AND PRACTICE Second Edition William Stallings Lawrie Brown University of New South Wales, Australian Defence. cqbe is a p2p certificate solution that decentralizes authority and provides highly available p2p certificate and revocation storage. - blackdoor/DAC.

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Computer Security Principles And Practice 2nd Edition Pdf

BookReview Computer Security: Principles and Practice, Second Edition William Stallings and. Lawrie Brown Prentice Hall ISBN: COMPUTER. principles and practice solution manual file type ebook download, free computer security principles and practice solution manual file type download pdf. lawrie brown university of new south wales, australian defence force academy computer security principles and practice [pdf, epub ebook] - computer security.

Computer emergency response teams are set up by government and large organization to handle computer security incidents. Infrastructures as targets[ edit ] Once a cyber-attack has been initiated, there are certain targets that need to be attacked to cripple the opponent. Certain infrastructures as targets have been highlighted as critical infrastructures in time of conflict that can severely cripple a nation. Control systems, energy resources, finance, telecommunications, transportation, and water facilities are seen as critical infrastructure targets during conflict. Many devices are integrated with computer platforms to control valves and gates to certain physical infrastructures. Control systems are usually designed as remote telemetry devices that link to other physical devices through internet access or modems. Little security can be offered when dealing with these devices, enabling many hackers or cyberterrorists to seek out systematic vulnerabilities. Paul Blomgren, manager of sales engineering at cybersecurity firm explained how his people drove to a remote substation, saw a wireless network antenna and immediately plugged in their wireless LAN cards. They took out their laptops and connected to the system because it wasn't using passwords. Within 20 minutes, they were talking to the business network and had pulled off several business reports. They never even left the vehicle. It is broken down into two categories, electricity and natural gas. Electricity also known as electric grids power cities, regions, and households; it powers machines and other mechanisms used in day-to-day life. Using U. By shutting those grids down, they can cause mass hysteria, backlog, and confusion; also being able to locate critical areas of operation to further attacks in a more direct method.

Trudy will be our all-purpose bad guy. Alice, Bob, Trudy and the rest of the gang need not be humans. For example, one possible scenario would be that Alice is a laptop, Bob a server, and Trudy a human. Information has integrity if unauthorized writing is prohibited. Denial of service, or DoS, attacks are a relatively recent concern.

Such attacks try to reduce access to information. As a result of the rise in DoS attacks, data availability has become a fundamental issue in information security. Bob might then take his business elsewhere. Although these two authentication problems look similar on the surface, under the surface they are completely different.

Authentication over a network is open to many kinds of attacks. The messages sent over a network can be viewed by Trudy. To make matters worse, Trudy can not only intercept messages, she can alter messages and insert messages of her own making. She can also replay old messages in an effort to, say, convince AOB that she is really Bob.

Authentication in such a situation requires careful attention to the protocols that are used. Cryptography also has an important role to play in security protocols. Enforcing such restrictions is the domain of authorization.

Note that authorization places restrictions on the actions of authenticated users. Modern software systems tend to be large, complex, and rife with bugs. How can AOB be sure that its software is behaving correctly? On the other hand, some software is written with the intent of doing evil. Such malicious software, or malware, includes the all-too-familiar computer viruses and worms that plague the Internet today.

What can Trudy do to increase the nastiness of such pests? Bob also has many software concerns. For example, when Bob enters his password on his computer, how does he know that his password has not been captured and sent to Trudy? If Bob conducts a transaction at www. Operating systems are themselves large and complex pieces of software. OSs also enforce much of the security in any system, so some knowledge of OSs is necessary in order to more fully appreciate the challenges of information security.

I believe this is appropriate, since the strengths, weaknesses, and inherent limitations of the mechanisms directly affect all of the other critical aspects of security.

In other words, without a reasonable understanding of the mechanisms, it is not possible to have an informed discussion of any of the other three issues. These classic systems illustrate fundamental principles that are employed in modern digital cipher systems, but in a more user-friendly format. Hash functions are used in many different contexts in information security.

Some of these uses are quite surprising and not always intuitive. In fact, weak passwords present a major security weakness in most systems. The alternatives to passwords include biometrics and smartcards.

Authorization deals with restrictions placed on authenticated users. Authorization leads naturally to a few relatively specialized topics. If both types of information are on a single system, how can we enforce such restrictions? The idea behind such modeling is to lay out the essential security requirements of a system.

If so, the system would automatically inherit all of the security properties that are known to hold for such a model. Multilevel security also provides an opportunity to discuss covert channels and inference control. Covert channels are unintended channels of communication. There was a case in Russia with a gas supplier known as Gazprom, they lost control of their central switchboard which routes gas flow, after an inside operator and Trojan horse program bypassed security.

Operations would stall from region to region causing nationwide economical degradation. In the U. A cyberattack on a financial institution or transactions may be referred to as a cyberheist.

These attacks may start with phishing that targets employees, using social engineering to coax information from them. They may allow attackers to hack into the network and put keyloggers on the accounting systems.

In time, the cybercriminals are able to obtain password and keys information. An organization's bank accounts can then be accessed via the information they have stolen using the keyloggers.

Telecommunication integration is becoming common practice, systems such as voice and IP networks are merging.

Everything is being run through the internet because the speeds and storage capabilities are endless. Denial-of-service attacks can be administered as previously mentioned, but more complex attacks can be made on BGP routing protocols or DNS infrastructures. It is less likely that an attack would target or compromise the traditional telephony network of SS7 switches, or an attempted attack on physical devices such as microwave stations or satellite facilities.

The ability would still be there to shut down those physical facilities to disrupt telephony networks. The whole idea on these cyber-attacks is to cut people off from one another, to disrupt communication, and by doing so, to impede critical information being sent and received. This is the only text available to provide integrated, comprehensive, up-to-date coverage of the broad range of topics in this subject.

Computer Security Principles and Practice 2nd Edition Stallings PDF

In addition to an extensive pedagogical program, the book provides unparalleled support for both research and modeling projects, giving students a broader perspective. An Interim Revision to CS Principles and Practice, 1e, the winner of the Textbook Excellence Award for the best Computer Science textbook of Visit Stallings' Companion Website at http: This product is part of the following series.

Click on a series title to see the full list of products in the series. Download Preface.

This material is protected under all copyright laws, as they currently exist. No portion of this material may be reproduced, in any form or by any means, without permission in writing from the publisher.

Encryption of Stored Data 64 2. An Iris Biometric System 97 3. Snort 8.

Information Security: Principles and Practices, 2nd Edition

Unified Threat Management Products 9. Silver Star Mines A Corporate Physical Security Policy An Integrated Approach Chapter 25 Linux Security Filesystem Security Instructor Resources for Computer Security: Author's Companion Website for Computer Security: Website for the Stallings Series, Computer Security: Pearson offers special pricing when you package your text with other student resources.

If you're interested in creating a cost-saving package for your students, contact your Pearson rep. William Stallings has authored 17 titles, and counting revised editions, over 40 books on computer security, computer networking, and computer architecture. In over 20 years in the field, he has been a technical contributor, technical manager, and an executive with several high-technology firms. Currently he is an independent consultant whose clients include computer and networking manufacturers and customers, software development firms, and leading-edge government research institutions.

He has nine times received the award for the best Computer Science textbook of the year from the Text and Academic Authors Association. This site provides documents and links on a variety of subjects of general interest to computer science students and professionals.

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He is a member of the editorial board of Cryptologia , a scholarly journal devoted to all aspects of cryptology. His professional interests include cryptography, communications and computer systems security, and most recently, the design of safe mobile code environments using the functional language Erlang.

He has previously worked on the design and implementation of private key block ciphers, in particular the LOKI family of encryption algorithms. He currently teaches courses in computer security, cryptography, data communications and java programming, and conducts workshops in security risk assessment and firewall design. We're sorry! We don't recognize your username or password.

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