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Books > Computing & IT > Applications of computing > Databases > Data security & data encryption
Written from the hacker's perspective, Maximum Windows 2000 Security is a comprehensive, solutions-oriented guide to Windows 2000 security. Topics include:
Get full details on major mobile/wireless clients and operating systems--including Windows CE, Palm OS, UNIX, and Windows. You’ll learn how to design and implement a solid security system to protect your wireless network and keep hackers out. Endorsed by RSA Security -- the most trusted name in e-security -- this is your one-stop guide to wireless security.
Learn to implement a solid mCommerce security plan--from start to finish Many businesses today recognize mobile commerce--mCommerce--as a way to increase revenue and offer customers a new level of convenience. Mobile phones and PDAs can now be used for online banking, purchasing tickets, messaging, and much more. For any transaction, security is a top priority--and this becomes increasingly complex when wireless and mobile applications are involved. This practical introductory guide clearly explains different mCommerce applications and their associated security risks. Through case studies, you'll learn best practices for implementing specific security methods in key industries--including banking, retail, entertainment, military, travel, and healthcare. The book also contains 8 pages of blueprints that depict secure end-to-end mCommerce architecture as well as identify key vulnerability points.Explore the latest security topics for both business and consumer mCommerce applications Improve services offered to customers through secure mCommerce applications Get details on various types of mobile applications and understand their security risks--including commerce, payments, information, communications, gaming, and military Discover the differences between mobile versus wired security Address mobile security issues in key industries such as banking and finance, travel, manufacturing, entertainment, public services, and defense Recognize the time- and cost-saving benefits of secured mCommerce applications through comprehensive case studies Preview the security of future mobile applications--such as 3G/4G networks and wearable computers
"A solve-it-yourself mystery that will draw you in with entertaining, yet realistic scenarios that both challenge and inform you." --Tim Newsham, security research scientist, @stake, Inc. Malicious hackers are everywhere these days, so how do you keep them out of your networks? This unique volume challenges your forensics and incident response skills with 20 real-world hacks presented by upper-echelon security experts. Important topics are covered, including Denial of Service, wireless technologies, Web attacks, and malicious code. Each challenge includes a detailed explanation of the incident--how the break-in was detected, evidence and possible clues, technical background such as log files and network maps, and a series of questions for you to solve. Then, in Part II, you get a detailed analysis of how the experts solved each incident. Excerpt from "The Insider": The Challenge: Kris, a software company's senior I.T. staffer, got a call from the helpdesk....Users were complaining that the entire contents of their inbox, outbox, and deleted items folders had completely disappeared....The following Monday, Kris found that the entire Exchange database had been deleted....The attacker sent an email from a Yahoo! account taking responsibility for the attacks....The e-mail had been sent from a machine within the victim's network. Kris brought in an external security team who immediately began their investigation...In addition to gathering physical security logs, Microsoft Exchange logs, and virtual private network (VPN) logs they interviewed key people inside the company.... The Solution: After reviewing the log files included in the challenge, propose your assessment--whendid the deletion of e-mail accounts begin and end, which users were connected to the VPN at the time, and what IP addresses were the users connecting from? Then, turn to the experts' answers to find out what really happened. Contributing authors include: Top security professionals from @stake, Foundstone, Guardent, The Honeynet Project, University of Washington, Fortrex Technologies, SecureMac.com, AnchorIS.com, and the National Guard Information Warfare unit.
Written by the experts at RSA Security, this book will show you how to secure transactions and develop customer trust in e-commerce through the use of PKI technology. Part of the RSA Press Series.
Stefan Brands proposes cryptographic building blocks for the design of digital certificates that preserve privacy without sacrificing security. As paper-based communication and transaction mechanisms are replaced by automated ones, traditional forms of security such as photographs and handwritten signatures are becoming outdated. Most security experts believe that digital certificates offer the best technology for safeguarding electronic communications. They are already widely used for authenticating and encrypting email and software, and eventually will be built into any device or piece of software that must be able to communicate securely. There is a serious problem, however, with this unavoidable trend: unless drastic measures are taken, everyone will be forced to communicate via what will be the most pervasive electronic surveillance tool ever built. There will also be abundant opportunity for misuse of digital certificates by hackers, unscrupulous employees, government agencies, financial institutions, insurance companies, and so on.In this book Stefan Brands proposes cryptographic building blocks for the design of digital certificates that preserve privacy without sacrificing security. Such certificates function in much the same way as cinema tickets or subway tokens: anyone can establish their validity and the data they specify, but no more than that. Furthermore, different actions by the same person cannot be linked. Certificate holders have control over what information is disclosed, and to whom. Subsets of the proposed cryptographic building blocks can be used in combination, allowing a cookbook approach to the design of public key infrastructures. Potential applications include electronic cash, electronic postage, digital rights management, pseudonyms for online chat rooms, health care information storage, electronic voting, and even electronic gambling.
Hailed as "a chilling portrait" by The Boston Globe and "a crafty thriller" by Newsweek, this astonishing story of an obsessive hacker promises to change the way you look at the Internet forever. At Large chronicles the massive manhunt that united hard-nosed FBI agents, computer nerds, and uptight security bureaucrats against an elusive computer outlaw who broke into highly secured computer systems at banks, universities, federal agencies, and top-secret military weapons-research sites. Here is "a real-life tale of cops vs. hackers, by two technology writers with a flair for turning a complicated crime and investigation into a fast-moving edge-of-your-seat story" (Kirkus Reviews, starred). At Large blows the lid off the frightening vulnerability of the global online network, which leaves not only systems, but also individuals, exposed.
This new edition of the hacker's own phenomenally successful lexicon includes more than 100 new entries and updates or revises 200 more. This new edition of the hacker's own phenomenally successful lexicon includes more than 100 new entries and updates or revises 200 more. Historically and etymologically richer than its predecessor, it supplies additional background on existing entries and clarifies the murky origins of several important jargon terms (overturning a few long-standing folk etymologies) while still retaining its high giggle value. Sample definition hacker n. [originally, someone who makes furniture with an axe] 1. A person who enjoys exploring the details of programmable systems and how to stretch their capabilities, as opposed to most users, who prefer to learn only the minimum necessary. 2. One who programs enthusiastically (even obsessively) or who enjoys programming rather than just theorizing about programming. 3. A person capable of appreciating {hack value}. 4. A person who is good at programming quickly. 5. An expert at a particular program, or one who frequently does work using it or on it; as in `a UNIX hacker'. (Definitions 1 through 5 are correlated, and people who fit them congregate.) 6. An expert or enthusiast of any kind. One might be an astronomy hacker, for example. 7. One who enjoys the intellectual challenge of creatively overcoming or circumventing limitations. 8. [deprecated] A malicious meddler who tries to discover sensitive information by poking around. Hence `password hacker', `network hacker'. The correct term is {cracker}. The term 'hacker' also tends to connote membership in the global community defined by the net (see {network, the} and {Internet address}). It also implies that the person described is seen to subscribe to some version of the hacker ethic (see {hacker ethic, the}). It is better to be described as a hacker by others than to describe oneself that way. Hackers consider themselves something of an elite (a meritocracy based on ability), though one to which new members are gladly welcome. There is thus a certain ego satisfaction to be had in identifying yourself as a hacker (but if you claim to be one and are not, you'll quickly be labeled {bogus}). See also {wannabee}.
CYBERSECURITY: THE ESSENTIAL BODY OF KNOWLEDGE provides a comprehensive, trustworthy framework of practices for assuring information security. This book is organized to help readers understand how the various roles and functions within cybersecurity practice can be combined and leveraged to produce a secure organization. In this unique book, concepts are not presented as stagnant theory; instead, the content is interwoven in a real world adventure story that runs throughout. In the story, a fictional company experiences numerous pitfalls of cyber security and the reader is immersed in the everyday practice of securing the company through various characters' efforts. This approach grabs learners' attention and assists them in visualizing the application of the content to real-world issues that they will face in their professional life. Derived from the Department of Homeland Security's Essential Body of Knowledge (EBK) for IT Security, this book is an indispensable resource dedicated to understanding the framework, roles, and competencies involved with information security.
Das vorliegende Buch bietet eine strukturierte, gut lesbare Einfuhrung zu den wichtigsten Sicherheitsstandards im Internet. Hierzu zahlen bekannte Standards wie TLS, OpenPGP, S/MIME, SSH, IPsec und WPA, aber auch die versteckten Sicherheitsfeatures aus der Microsoft-Welt (PPTP, Kerberos), dem Mobilfunk, DNSSEC, Single-Sign-On-Protokollen und Datenformaten wie XML und JSON. Das Verstandnis fur diese Standards und deren Weiterentwicklung wird durch eine detaillierte Beschreibung der bekannten Angriffe vertieft, insbesondere fur TLS liegt hier umfangreiches Material vor. Die 5. Auflage wurde erheblich erweitert und aktualisiert. Neue Themen sind unter anderem die WLAN-Standards WPA2 und WPA3, die neue TLS-Version 1.3, Kerberos, Anti-SPAM-Techniken und moderne Single-Sign-On-Protokolle. Das Thema TLS wird voellig neu dargestellt, und die Kapitel zu E-Mail-Sicherheit und IPsec deutlich erweitert. Eine umfangreiche Einfuhrung in praktische Aspekte der Kryptographie macht dieses Buch ohne zusatzliche Literatur nutzbar.
Databases are the nerve center of our economy. Every piece of your
personal information is stored there-medical records, bank
accounts, employment history, pensions, car registrations, even
your children's grades and what groceries you buy. Database attacks
are potentially crippling-and relentless.
A dictionary and handbook that defines the field and provides unique insight Turn to Minoli-Cordovana's Authoritative Computer and Network
Security Dictionary for clear, concise, and up-to-date definitions
of terms, concepts, methods, solutions, and tools in the field of
computer and network security. About 5,555 security- and IT-related
words and phrases are defined. Drawing their definitions from their
work experience and from a variety of established and respected
sources, the authors have created a single, up-to-the-minute, and
standardized resource that users can trust for accuracy and
authority.
For courses in Cryptography, Computer Security, and Network Security The Principles and Practice of Cryptography and Network Security Stallings' Cryptography and Network Security introduces students to the compelling and evolving field of cryptography and network security. In an age of viruses and hackers, electronic eavesdropping, and electronic fraud on a global scale, security is paramount. The purpose of this book is to provide a practical survey of both the principles and practice of cryptography and network security. In the first part of the book, the basic issues to be addressed by a network security capability are explored by providing a tutorial and survey of cryptography and network security technology. The latter part of the book deals with the practice of network security: practical applications that have been implemented and are in use to provide network security. This edition streamlines subject matter with new and updated material - including Sage, one of the most important features of the book. Sage is an open-source, multiplatform, freeware package that implements a very powerful, flexible, and easily learned mathematics and computer algebra system. It provides hands-on experience with cryptographic algorithms and supporting homework assignments. With Sage, students learn a powerful tool that can be used for virtually any mathematical application. The book also provides an unparalleled degree of support for instructors and students to ensure a successful teaching and learning experience.
Dieses Lehrbuch bietet eine fundierte Einfuhrung in die grundlegenden Begriffe und Methoden der Informatik. Die Autoren stellen dabei die Prinzipien der System-Modellierung und der Entwicklung von Software in den Mittelpunkt der Darstellung. Der hier vorliegende Band vermittelt die wesentlichen Grundbegriffe und theoretischen Grundlagen der Informatik, wie z.B. Algebren, Relationen, elementare Logik, funktionales Programmieren, abstrakte Datentypen. Die vierte Auflage des bewahrten Lehrbuches ist grundlegend uberarbeitet und aktualisiert worden. Der Text richtet sich an Studierende im Grundstudium an Universitaten und Fachhochschulen und basiert auf der langjahrigen Erfahrung der Autoren in der Ausbildung angehender Informatiker."
Dieses Lehrbuch gibt eine praxisnahe Einfuhrung in die
Informatik.
Serious Cryptography is the much anticipated review of modern cryptography by cryptographer JP Aumasson. This is a book for readers who want to understand how cryptography works in today's world. The book is suitable for a wide audience, yet is filled with mathematical concepts and meaty discussions of how the various cryptographic mechanisms work. Chapters cover the notion of secure encryption, randomness, block ciphers and ciphers, hash functions and message authentication codes, public-key crypto including RSA, Diffie-Hellman, and elliptic curves, as well as TLS and post-quantum cryptography. Numerous code examples and real use cases throughout will help practitioners to understand the core concepts behind modern cryptography, as well as how to choose the best algorithm or protocol and ask the right questions of vendors. Aumasson discusses core concepts like computational security and forward secrecy, as well as strengths and limitations of cryptographic functionalities related to
Cryptography is the study of methods to transform information from its original comprehensible form into a scrambled incomprehensible form, such that its content can only be disclosed to some qualified persons. In the past, cryptography helped ensure secrecy in important communications, such as those of spies, military leaders, and diplomats. In recent decades, it has expanded in two main ways: firstly, it provides mechanisms for more than just keeping secrets through schemes like digital signatures, digital cash, etc; secondly, cryptography is used by almost all computer users as it is embedded into the infrastructure for computing and telecommunications. Cryptography ensures secure communications through confidentiality, integrity, authenticity and non-repudiation. Cryptography has evolved over the years from Julius Cesar's cipher, which simply shifts the letters of the words a fixed number of times, to the sophisticated RSA algorithm, which was invented by Ronald L. Rivest, Adi Shamir and Leonard M. Adleman, and the elegant AES cipher (Advanced Encryption Standard), which was invented by Joan Daemen and Vincent Rijmen. The need for fast but secure cryptographic systems is growing bigger. Therefore, dedicated hardware for cryptography is becoming a key issue for designers. With the spread of reconfigurable hardware such as FPGAs, embedded cryptographic hardware became cost-effective. Nevertheless, it is worthy to note that nowadays, even hardwired cryptographic algorithms are not safe. Attacks based on power consumption and electromagnetic Analysis, such as SPA, DPA and EMA have been successfully used to retrieve secret information stored in cryptographic devices. Besides performance in terms of area and throughput, designer of embedded cryptographic hardware must worry about the leakage of their implementations. The content of this book is divided into three main parts, which are focused on new trends in cryptographic hardware, arithmetic and factoring.
QUANTUM BLOCKCHAIN While addressing the security challenges and threats in blockchain, this book is also an introduction to quantum cryptography for engineering researchers and students in the realm of information security. Quantum cryptography is the science of exploiting quantum mechanical properties to perform cryptographic tasks. By utilizing unique quantum features of nature, quantum cryptography methods offer everlasting security. The applicability of quantum cryptography is explored in this book. It describes the state-of-the-art of quantum blockchain techniques and sketches how they can be implemented in standard communication infrastructure. Highlighting a wide range of topics such as quantum cryptography, quantum blockchain, post-quantum blockchain, and quantum blockchain in Industry 4.0, this book also provides the future research directions of quantum blockchain in terms of quantum resilience, data management, privacy issues, sustainability, scalability, and quantum blockchain interoperability. Above all, it explains the mathematical ideas that underpin the methods of post-quantum cryptography security. Readers will find in this book a comprehensiveness of the subject including: The key principles of quantum computation that solve the factoring issue. A discussion of a variety of potential post-quantum public-key encryption and digital signature techniques. Explanations of quantum blockchain in cybersecurity, healthcare, and Industry 4.0. Audience The book is for security analysts, data scientists, vulnerability analysts, professionals, academicians, researchers, industrialists, and students working in the fields of (quantum) blockchain, cybersecurity, cryptography, and artificial intelligence with regard to smart cities and Internet of Things.
"The state, that must eradicate all feelings of insecurity, even potential ones, has been caught in a spiral of exception, suspicion and oppression that may lead to a complete disappearance of liberties." Mireille Delmas Marty, Libertes et surete dans un monde dangereux, 2010 This book will examine the security/freedom duo in space and time with regards to electronic communications and technologies used in social control. It will follow a diachronic path from the relative balance between philosophy and human rights, very dear to Western civilization (at the end of the 20th Century), to the current situation, where there seems to be less freedom in terms of security to the point that some scholars have wondered whether privacy should be redefined in this era. The actors involved (the Western states, digital firms, human rights organizations etc.) have seen their roles impact the legal and political science fields.
Computer and Information Security Handbook, Third Edition, provides the most current and complete reference on computer security available in one volume. The book offers deep coverage of an extremely wide range of issues in computer and cybersecurity theory, applications, and best practices, offering the latest insights into established and emerging technologies and advancements. With new parts devoted to such current topics as Cloud Security, Cyber-Physical Security, and Critical Infrastructure Security, the book now has 100 chapters written by leading experts in their fields, as well as 12 updated appendices and an expanded glossary. It continues its successful format of offering problem-solving techniques that use real-life case studies, checklists, hands-on exercises, question and answers, and summaries. Chapters new to this edition include such timely topics as Cyber Warfare, Endpoint Security, Ethical Hacking, Internet of Things Security, Nanoscale Networking and Communications Security, Social Engineering, System Forensics, Wireless Sensor Network Security, Verifying User and Host Identity, Detecting System Intrusions, Insider Threats, Security Certification and Standards Implementation, Metadata Forensics, Hard Drive Imaging, Context-Aware Multi-Factor Authentication, Cloud Security, Protecting Virtual Infrastructure, Penetration Testing, and much more. Online chapters can also be found on the book companion website: https://www.elsevier.com/books-and-journals/book-companion/9780128038437
Dieses Buch erlautert kompakt, ohne theoretischen UEberbau und mit moeglichst wenig mathematischem Formalismus die wesentlichen Konzepte bei der Verschlusselung schutzenswerter Nachrichten und Daten. Hierbei liegt der Fokus auf der Beschreibung der historisch und fur die Praxis wichtigen Chiffrier-, Signatur- und Authentifikationsverfahren. Dabei wird sowohl auf symmetrische Verschlusselungen als auch auf Public-Key-Chiffren eingegangen. Angesprochen werden jeweils auch die Strategien, mit deren Hilfe man Verschlusselungen angreift und zu "knacken" versucht. Besonderer Wert gelegt wird auf die Darstellung des praktischen Einsatzes von Chiffren, insbesondere im alltaglichen Umfeld. Das Buch eignet sich fur Arbeitsgruppen an MINT-Schulen und die MINT-Lehrerfortbildung, fur Einfuhrungskurse an Hochschulen wie auch fur interessierte Schuler und Erwachsene.
Strong Pseudorandompermutations or SPRPs,which were introduced byLuby andRacko? [4], formalize the well established cryptographic notion ofblock ciphers.They provided a construction of SPRP, well known as LRconstruction, which was motivated by the structure of DES[6].The basicbuildingblock is the so called 2n-bit Feistel permutation (or LR round permutation) LR based F K on an n-bitpseudorandomfunction (PRF) F : K n LR (x ,x)=(F (x )?x ,x ),x ,x?{0,1} . F 1 2 K 1 2 1 1 2 K Theirconstruction consists (see Fig 1) offour rounds of Feistel permutations (or three rounds, for PRP), each round involves an application ofanindependent PRF(i.e.with independentrandomkeys K ,K ,K , and K ). More precisely, 1 2 3 4 LR and LR are PRP and SPRP respectively where K ,K ,K K ,K ,K ,K 1 2 3 1 2 3 4 LR := LR := LR (...(LR (*))...). K ,...,K F ,...,F F F 1 r K K K K r r 1 1 After this work, many results are known improvingperformance (reducingthe number of invocations of F )[5] and reducingthekey-sizes (i.e. reusingthe K roundkeys [7,8,10,12,11] orgenerate more keysfromsinglekey by usinga PRF[2]). However there are some limitations.Forexample,wecannotuseas few as single-keyLR (unless wetweak the roundpermutation) orasfew as two-roundsince they are not secure. Distinguishing attacks forsome other LR constructionsarealso known [8]. We list some oftheknow related results (see Table 1). Here all keys K ,K ,...are independently chosen.
Presents primary hardware-based computer security approaches in an easy-to-read toolbox format Protecting valuable personal information against theft is a mission-critical component of today's electronic business community. In an effort to combat this serious and growing problem, the Intelligence and Defense communities have successfully employed the use of hardware-based security devices. This book provides a road map of the hardware-based security devices that can defeat--and prevent--attacks by hackers. Beginning with an overview of the basic elements of computer security, the book covers: Cryptography Key generation and distribution The qualities of security solutions Secure co-processors Secure bootstrap loading Secure memory management and trusted execution technology Trusted Platform Module (TPM) Field Programmable Gate Arrays (FPGAs) Hardware-based authentification Biometrics Tokens Location technologies Hardware-Based Computer Security Techniques to Defeat Hackers includes a chapter devoted entirely to showing readers how they can implement the strategies and technologies discussed. Finally, it concludes with two examples of security systems put into practice. The information and critical analysis techniques provided in this user-friendly book are invaluable for a range of professionals, including IT personnel, computer engineers, computer security specialists, electrical engineers, software engineers, and industry analysts. |
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