operating system and network security ppt
Tài liệu Cryptography and Network Security Principles and Practices, Fourth Edition ppt
... important network security tools and applications, including Kerberos, X.509v3 certificates, PGP,S/MIME, IP Security, SSL/TLS, and SET.Part Four. System Security: Looks at system- level security ... affected security is the introduction of distributed systems and the use of networks and communications facilities for carrying databetween terminal user and computer and between computer and computer. ... network security have developed. This text provides a practicalsurvey of both the principles and practice of cryptography and network security. First, the basicissues to be addressed by a network...
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Cryptography and Network Security Chapter 6 pptx
... of data main use is sending a few blocks of data Cryptography and Cryptography and Network Security Network Security Chapter 6Chapter 6Fourth EditionFourth Editionby William Stallingsby ... in security nb encrypt & decrypt equivalent in security if if K1=K2K1=K2 then can work with single DES then can work with single DESstandardized in ANSI X9.17 & ISO8732standardized ... stream) have a pseudo random have a pseudo random keystreamkeystreamcombined (XOR) with plaintext bit by bit combined (XOR) with plaintext bit by bit randomness of randomness of stream...
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Cryptography and Network Security Chapter 7 pptx
... by “created by “Pseudorandom Number Generators Pseudorandom Number Generators (PRNGs)”(PRNGs)” Cryptography and Cryptography and Network Security Network Security Chapter 7Chapter ... are not truly randomalthough are not truly randomcan pass many tests of “randomness”can pass many tests of “randomness”known as “pseudorandom numbers”known as “pseudorandom numbers”created ... PRG Natural Random NoiseNatural Random Noisebest source is natural randomness in real world best source is natural randomness in real world find a regular but random event and monitor...
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Tài liệu Sybex - Active Defense Guide to Network Security pptx
... Comprehensive Guide to Network Security page 33 Network Layer The network layer describes how systems on different network segments find each other; it also defines network addresses. A network address ... connected systems. Note The network address is assigned by the network administrator and should not be confused with the MAC address assigned to each network card. The purpose of a network address ... isolation from other networking activities. This book provides system and network administrators with the information they will need to run a network with multiple layers of security protection,...
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Tài liệu Home Network Security ppt
... only a wired network and have no other security. If such a home network uses wireless networking, one can make sure that link encryption is used to enforce the policy that only home network devices ... Home Network Security 37 Home Network Security Carl M. Ellison, Corporate Technology Group, Intel Corporation Index words: firewall, UPnP, 802.11, wireless, VPN, security, home networking ... Computer owners should update operating systems and applications with the latest security patches and scan for new patches daily. These patches must be digitally signed, and therefore authenticated,...
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Tài liệu Module 3: Identifying Threats to Network Security pptx
... Introduction to Security Threats 2 Lesson: Predicting Threats to Security 8 Lab A: Identifying Threats to Network Security 15 Module 3: Identifying Threats to Network Security 10 ... networks, it is essential that security personnel are organized, trained, prepared, and vigilant. Key points Module 3: Identifying Threats to Network Security 3 Why Network Attacks Occur *****************************ILLEGAL ... the LocalSystem security context and uses this process to create an administrator account. Often, poor security as a result of using default settings allows an attacker to obtain network access...
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Tài liệu Managing Cisco Network Security pptx
... general system and network security concepts and introduces the different security mechanisms available through TCP/IP.Chapters 2, 3 and 4 deal with security through access control and advanced ... Introduction to IP Network Security provides an overview ofthe components that comprise system and network security. Thechapter introduces some basic networking concepts (IP, TCP, UCP,ICMP) and discusses ... Processes and ManagingCisco Security Fast Track 407Introduction 408What Is a Managing Cisco Security Fast Track? 408Introduction to Cisco Network Security 408 Network Security 409Network...
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Tài liệu Programming the Be Operating System-Chapter 5: Drawing ppt
... of the threecolor components), and because it is a color system with which many program-mers and end users are familiar with (it’s common to several operating systems).The BeOS defines rgb_color ... the BeOS is an operating system for the graphics community. So it’shoped that the BeOS makes it easy for programmers to support the drawing ofboth simple and complex shapes. And, of course, ... defini-tion. The following declares an rgb_color variable named redColor and assignsthe red and alpha fields a value of 255 and the other two fields a value of 0:rgb_color redColor = {255, 0, 0,...
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Tài liệu Programming the Be Operating System-Chapter 8: Text ppt
... NULL)The font, properties, and color parameters are the variables filled in by a pre-vious call to GetFontAndColor(). In between the calls to GetFontAndColor() and SetFontAndColor(), invoke one ... font and then pass these changes back to the text view object. Thesame applies to the text’s color. The BTextView function SetFontAndColor()takes care of both of these tasks:void SetFontAndColor(const ... scrolled and add the BScrollBarobject to the same parent view as the target view. Or, more likely, create aBScrollView object and let it do this work for you. Because the scrolling view isso handy,...
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Tài liệu The Essentials of Network Security ppt
... your network. By using multi-ple forms of protection and educating your staff and network users to maintain high security standards and report all questionable activities to the appropriate security ... comprehensive and well communicated to your entireorganization’s network of users. General security policy and procedures define an overall frame-work for security and provide the security teams ... of network security and network operations are vast. Today’sinfrastructure and potential risks are much too complicated to be someone’s part-time responsibility. The complexityof network- security...
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