operating system and network security ppt

Ngày tải lên: 24/02/2014, 04:20

Ngày tải lên: 14/03/2014, 22:20

Ngày tải lên: 22/03/2014, 15:21

... 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 data between terminal user and computer and between computer and computer. ... network security have developed. This text provides a practical survey of both the principles and practice of cryptography and network security. First, the basic issues to be addressed by a network...

Ngày tải lên: 18/02/2014, 08:20

... of data main use is sending a few blocks of data Cryptography and Cryptography and Network Security Network Security Chapter 6 Chapter 6 Fourth Edition Fourth Edition by William Stallings by ... in security nb encrypt & decrypt equivalent in security  if if K1=K2 K1=K2 then can work with single DES then can work with single DES  standardized in ANSI X9.17 & ISO8732 standardized ... stream)  have a pseudo random have a pseudo random keystream keystream  combined (XOR) with plaintext bit by bit combined (XOR) with plaintext bit by bit  randomness of randomness of stream...

Ngày tải lên: 06/03/2014, 16:20

... by “ created by “ Pseudorandom Number Generators Pseudorandom Number Generators (PRNGs)” (PRNGs)” Cryptography and Cryptography and Network Security Network Security Chapter 7 Chapter ... are not truly random although are not truly random  can pass many tests of “randomness” can pass many tests of “randomness”  known as “pseudorandom numbers” known as “pseudorandom numbers”  created ... PRG Natural Random Noise Natural Random Noise  best source is natural randomness in real world best source is natural randomness in real world  find a regular but random event and monitor...

Ngày tải lên: 06/03/2014, 16:20

Ngày tải lên: 15/03/2014, 17:20

Ngày tải lên: 22/03/2014, 14:20

Ngày tải lên: 28/03/2014, 20:20

Ngày tải lên: 28/03/2014, 22:20

Ngày tải lên: 14/08/2014, 14:21

Ngày tải lên: 07/12/2013, 11:53

... 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,...

Ngày tải lên: 11/12/2013, 03:15

... 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,...

Ngày tải lên: 11/12/2013, 15:15

... 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...

Ngày tải lên: 21/12/2013, 19:15

Ngày tải lên: 23/12/2013, 04:18

... 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 of the components that comprise system and network security. The chapter introduces some basic networking concepts (IP, TCP, UCP, ICMP) and discusses ... Processes and Managing Cisco Security Fast Track 407 Introduction 408 What Is a Managing Cisco Security Fast Track? 408 Introduction to Cisco Network Security 408 Network Security 409 Network...

Ngày tải lên: 24/01/2014, 19:20

... of the three color 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’s hoped that the BeOS makes it easy for programmers to support the drawing of both simple and complex shapes. And, of course, ... defini- tion. The following declares an rgb_color variable named redColor and assigns the red and alpha fields a value of 255 and the other two fields a value of 0: rgb_color redColor = {255, 0, 0,...

Ngày tải lên: 26/01/2014, 07:20

... 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. The same applies to the text’s color. The BTextView function SetFontAndColor() takes care of both of these tasks: void SetFontAndColor(const ... scrolled and add the BScrollBar object to the same parent view as the target view. Or, more likely, create a BScrollView object and let it do this work for you. Because the scrolling view is so handy,...

Ngày tải lên: 26/01/2014, 07:20