Wireless and mobile networks have undergone a tremendous evolution since their start. This was mainly motivated by the need for connectivity everywhere, as exemplified by the philosophy of "always on" access. Mobile telephony was the first need felt by users, followed by the need for mobile Internet applications. Mobile telecommunications networks were the first concretization of mobile telephony, followed by a set of wireless technologies with or without embedded mobility and with or without infrastructure. Obviously, this large deployment of services over mobile and wireless networks is not easy from a network security point of view. This book presents selected up-to-date research on security in wireless and mobile environments, mainly WiFi and self-organized networks such as ad-hoc networks. The selected research work was peer-reviewed and presented at the Mobile and Wireless Networks Security (MWNS) 2008 Workshop in Singapore.

The Steiner tree problem is one of the most important combinatorial optimization problems. It has a long history that can be traced back to the famous mathematician Fermat (1601 1665). This book studies three significant breakthroughs on the Steiner tree problem that were achieved in the 1990s, and some important applications of Steiner tree problems in computer communication networks researched in the past fifteen years. It not only covers some of the most recent developments in Steiner tree problems, but also discusses various combinatorial optimization methods, thus providing a balance between theory and practice.

Contents: Minimax Approach and Steiner Ratio; k-Steiner Ratios and Better Approximation Algorithms; Geometric Partitions and Polynomial Time Approximation Schemes; Grade of Service Steiner Tree Problem; Steiner Tree Problem for Minimal Steiner Points; Bottleneck Steiner Tree Problem; Steiner k-Tree and k-Path Routing Problems; Steiner Tree Coloring Problem; Steiner Tree Scheduling Problem; Survivable Steiner Network Problem.

Secure Citrix Presentation Server, which runs on 99% of Fortune 500 Networks!

Citrix Presentation Server allows remote users to work off a network server as if they weren't remote. That means: Incredibly fast access to data and applications for users, no third party VPN connection, and no latency issues. All of these features make Citrix Presentation Server a great tool for increasing access and productivity for remote users. Unfortunately, these same features make Citrix just as dangerous to the network it?s running on. By definition, Citrix is granting remote users direct access to corporate servers?..achieving this type of access is also the holy grail for malicious hackers. To compromise a server running Citrix Presentation Server, a hacker need not penetrate a heavily defended corporate or government server. They can simply compromise the far more vulnerable laptop, remote office, or home office of any computer connected to that server by Citrix Presentation Server.

All of this makes Citrix Presentation Server a high-value target for malicious hackers. And although it is a high-value target, Citrix Presentation Servers and remote workstations are often relatively easily hacked, because they are often times deployed by overworked system administrators who haven't even configured the most basic security features offered by Citrix. "The problem, in other words, isn't a lack of options for securing Citrix instances; the problem is that administrators aren't using them." (eWeek, October 2007). In support of this assertion Security researcher Petko D. Petkov, aka "pdp", said in an Oct. 4 posting that his recent testing of Citrix gateways led him to "tons" of "wide-open" Citrix instances, including 10 on government domains and four on military domains.

* The most comprehensive book published for system administrators providing step-by-step instructions for a secure Citrix Presentation Server.
* Special chapter by Security researcher Petko D. Petkov?aka "pdp detailing tactics used by malicious hackers to compromise Citrix Presentation Servers.
* Companion Web site contains custom Citrix scripts for administrators to install, configure, and troubleshoot Citrix Presentation Server.

The aim of this book is to provide a comprehensive introduction to cryptography without using complex mathematical constructions. The themes are conveyed in a form that only requires a basic knowledge of mathematics, but the methods are described in sufficient detail to enable their computer implementation. The book describes the main techniques and facilities of contemporary cryptography, proving key results along the way. The contents of the first five chapters can be used for one-semester course.

For centuries, cryptography, as the science of ciphering or covering information from unauthorised use, had been employed mainly for protecting messages communicated between the military or governmental officials. Therefore, the circle of people employing cryptography was quite restricted and the very methods of this science secret. However, in the last decades, when the mankind has entered the information society stage, cryptographic methods of information protection become widely used, serving, in the first place, business needs. At that, not only inter-bank payments carried out over computer networks are meant or, say, electronic exchanges operating via the Internet, but also numerous transactions in which millions of dinary” people are involved every day, such as payments by credit cards, transferring wages onto bank accounts, ordering tickets and buying goods over the Internet, etc. It is a natural demand that all these transactions, as well as mobile phone conversations and electronic mail, be secured against dishonest or just overly inquisitive persons and organisations. Therefore nowadays many specialists working in the field of information technologies (IT) are engaged in designing and- exploiting the systems of information protection. Since many of the methods used thereon are based on the results of contemporary cryptography, this subject is now studied in the universities preparing IT specialists.

Embedded systems technology involves a range of topics, including analog-to-digital conversion and application-specific integrated circuit design. From the history of high-performance computing to a discussion of future directions, High Performance Embedded Computing Handbook offers comprehensive coverage of all aspects of these computing systems, which have various applications in consumer electronics, radar, sonar, telecommunications, medical, and financial areas. Every component in a high-performance embedded system is defined and explained in detail, with leading academic and industry experts in the field providing a well-balanced treatment of theoretical and practical issues.

Most data from satellites are in image form, thus most books in the remote sensing field deal exclusively with image processing. However, signal processing can contribute significantly in extracting information from the remotely sensed waveforms or time series data. Pioneering the combination of the two processes, Signal and Image Processing for Remote Sensing provides a balance between the role of signal processing and image processing in remote sensing. Featuring contributions from worldwide experts, this book emphasizes mathematical approaches. Divided into two parts, Part I examines signal processing for remote sensing and Part II explores image processing. Not limited to the problems with data from satellite sensors, the book considers other sensors which acquire data remotely, including signals and images from infrasound, seismic, microwave, and satellite sensors. It covers a broader scope of issues in remote sensing information processing than other books in this area. With rapid technological advances, the mathematical techniques provided will far outlast the sensor, software and hardware technologies. Focusing on methodologies of signal processing and image processing in remote sensing, this book discusses unique techniques for dealing with remote sensing problems.

NETWORK DESIGN IS A COMPLEX PROCESS, requiring knowledge of several disciplines to include engineering, financial analysis, and computer science. Although the network design process was never simple, advances in technology and the introduction of new networking communications facilities and products resulted in a difficult endeavor becoming more difficult. Today the network manager and LAN administrator face many difficult decisions when designing a network. Unlike many occupations where knowledge in one area is sufficient to perform a job, network managers and LAN administrators must be knowledgeable concerning multiple disciplines. For example, it is difficult to interconnect geographically separated LANs without knowledge of how WANs operate and the transmission facilities that can be used to facilitate the interconnection of local area networks.

Recognizing the fact that the search for reference material in itself can be a time consuming project, this handbook was created as a reference to network design principles and applications. As you will note from the contents, this handbook is subdivided into an introduction followed by eight distinct network design related sections. Within each network design related section are a series of section topic related chapters selected to provide you with a firm foundation concerning an important aspect of modern network design.

The Comprehensive Resource for SQL Server 2005 Administrators, Consultants, and Developers

Whether you're a systems administrator, database application developer, or IT consultant, you'll quickly ratchet up your knowledge of Microsoft SQL Server 2005 with this thorough and comprehensive guide. Light on theory and heavy on practicality, it cuts to the chase with real-world examples of large-scale business applications, an entire chapter on troubleshooting, and crucial information on SQL Server 2005's enhanced connectivity. For new users of Microsoft SQL Server, this book takes you quickly, but systematically, through the introductory topics.

Coverage Includes

• Integrating SQL Server with .NET Framework
• Understanding Service Broker, a distributed application framework
• Programming with ADO.NET, the data-access component of .NET
• Setting up Notification Services, which delivers personalized information to mobile devices
• Using SQL Server Management Studio instead of Enterprise Manager
• Designing made easier with new Business Intelligence Development Studio (BIDS)
• Printing multi-page reports
• Mastering Transact-SQL programming language

Leverage the Experience of Large-Scale Enterprises through Real-World Examples

Increase Your Own Productivity with an Entire Chapter on Troubleshooting

Discover What SQL Server 2005's Increased Emphasis on Connectivity Means to Your Installation

Start Developing Apps—All the Information You Need!

About the Author

Mike Gunderloy is one of the world's foremost database developers. He has written Mastering SQL Server 2000, Visual Basic Developer's Guide to ADO, and SQL Server In Record Time and contributed to Access Developer's Handbook (in several versions), all from Sybex.

Joseph L. Jorden is the co-author of Mastering SQL Server 2000 and has served as the technical editor for several Sybex books.

David W. Tschanz has worked on a variety of pro-jects related to Web-accessible information and also serves as a computer security liaison.

Complete. Authoritative. Practical. The only SQL Server book you need. Mastering SQL Server 2000 is the one indispensable resource for anyone working with the latest version of SQL Server. Whether you build or administer SQL Server databases or write applications that communicate with them, you'll find the background knowledge and the practical instruction you need to accomplish any task, from the most basic to the most advanced. Coverage includes:

• Understanding SQL Server architecture
• Designing an efficient normalized database
• Writing Transact-SQL statements and batches
• Creating databases
• Creating tables and views
• Creating stored procedures and triggers
• Administering SQL Server
• Managing SQL Server security
• Designing applications using ADO, SQL-DMO, and SQL-NS
• Using Data Transformation Services
• Integrating SQL Server with the Internet
• Optimizing SQL Server performance
• Understanding and managing replication
• Using Analysis Services to analyze data
• Using Microsoft English Query
• Troubleshooting common problems

About the Author

Mike Gunderloy, an MCSE, MCSD, and MCT, is a senior consultant with MCW Technologies, where he specializes in Microsoft Visual Basic and SQL Server. He is the author of SQL Server 7 In Record Time,Visual Basic Developer's Guide to ADO, and VB/VBA Developer's Guide to the Windows Installer, all from Sybex. Mike lives on a farm in rural Washington state with his family and an ever-growing population of livestock.

Joseph L. Jorden is an MCSE, MCT, CCNA, and CCDA who has been administering databases for the last seven years. Currently Joseph works independently, consulting and instructing on a variety of technologies.

A self-contained introduction to microprocessor theory and applications

This book presents the fundamental concepts of assembly language programming and system design associated with typical microprocessors, such as the Motorola MC68000/68020 and Intel® Pentium®. It begins with an overview of microprocessors—including anexplanation of terms, the evolution of the microprocessor, and typical applications—and goes on to systematically cover:

• Microcomputer architecture

• Microprocessor memory organization

• Microprocessor Input/Output (I/O)

• Microprocessor programming concepts

• Assembly language programming with the 68000

• 68000 hardware and interfacing

• Assembly language programming with the 68020

• 68020 hardware and interfacing

• Assembly language programming with Pentium

• Pentium hardware and interfacing

The author assumes a background in basic digital logic, and all chapters conclude with a Questions and Problems section, with selected answers provided at the back of the book. Microprocessor Theory and Applications with 68000/68020 and Pentium is an ideal textbook for undergraduate- and graduate-level courses in electrical engineering, computer engineering, and computer science. (An instructor's manual is available upon request.) It is also appropriate for practitioners in microprocessor system design who are looking for simplified explanations and clear examples on the subject. Additionally, the accompanying CD-ROM, which contains step-by-step procedures for installing and using Ide 68k21 (68000/68020) and MASM32 / Olly Debugger (Pentium) software, provides valuable simulation results via screen shots.

About the Author

M. Rafiquzzaman, PhD, has been a Professor of Electrical and Computer Engineering at California State Polytechnic University, Pomona, since March 1978. He is the founder and President of Rafi Systems, Inc., a manufacturer of biomedical devices (Intraocular lenses) and a computer systems consulting firm in California. He is recognized for his numerous books on microprocessors, which have been translated into Russian, Chinese, and Spanish. Additionally, he was computer advisor to the president of Bangladesh. He was also an advisor to the U.S. House Policy Committee's Technology Board, assisting members of the U.S. Congress in the development and promotion of technology in both the public and private sectors. Dr. Rafiquzzaman is presently a member of the U.S. Olympic committee.

Get the most out of Photoshop Layers with this in-depth guide

Creative professionals know how to tap Photoshop CS3's Layers to achieve spectacular results, and now you can learn their secrets in this comprehensive book. How do you combine layers and masks? What's the best way to work with Web images? From the newest CS3 features to successful layering strategies, you'll discover the professional techniques and hands-on examples you need to succeed.

• Create composites that make an impact
• Add depth and dimension with layer blend modes
• Retouch with layers and get unlimited Undos
• Work with Smart Objects and organize your workflow
• Create great-looking, quick-loading Web images

What's on the CD-ROM?

The CD includes over 90 stock images, plus Photoshop files and source images for most of the book's examples and figures.
See the CD Appendix for details and complete system requirements.

Issues of matching and searching on elementary discrete structures arise pervasively in computer science and many of its applications, and their relevance is expected to grow as information is amassed and shared at an accelerating pace. Several algorithms were discovered as a result of these needs, which in turn created the subfield of Pattern Matching. This book provides an overview of the current state of Pattern Matching as seen by specialists who have devoted years of study to the field. It covers most of the basic principles and presents material advanced enough to faithfully portray the current frontier of research. Because of these recent advances, this is the right time for a book that brings together information relevant to both graduate students and specialists in need of an in-depth reference.

About the Author

Alberto Apostolico is at Universita di Padova. Zvi Galil is at Columbia University.

Providing solid digital system design fundamentals while accomplishing a gradual, bottom-up development of these fundamentals, this book focuses on the ever-evolving applications of basic computer design concepts. Treatment of logic design, digital system design, and computer design. Ideal for self-study by engineers and computer scientists.

The only book providing comprehensive coverage of all modern processor description languages; a must-have reference for embedded processor designers!

Efficient design of embedded processors plays a critical role in embedded systems design. Processor description languages and their associated specification, exploration and rapid prototyping methodologies are used to find the best possible design for a given set of applications under various design constraints, such as area, power and performance.

This book is the first, comprehensive survey of modern architecture description languages and will be an invaluable reference for embedded system architects, designers, developers, and validation engineers. Readers will see that the use of particular architecture description languages will lead to productivity gains in designing particular (application-specific) types of embedded processors.

* Comprehensive coverage of all modern architecture description languages... use the right ADL to design your processor to fit your application;
* Most up-to-date information available about each architecture description language from the developers...save time chasing down reliable documentation;
* Describes how each architecture desccription language enables key design automation tasks, such as simulation, synthesis and testing...fit the ADL to your design cycle;