operating system and network security ppt
Tài liệu Cryptography and Network Security Principles and Practices, Fourth Edition ppt
Ngày tải lên :
18/02/2014, 08:20
... 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...
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Cryptography and Network Security Chapter 6 pptx
Ngày tải lên :
06/03/2014, 16:20
... 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...
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Cryptography and Network Security Chapter 7 pptx
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...
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Tài liệu Sybex - Active Defense Guide to Network Security pptx
Ngày tải lên :
11/12/2013, 03:15
... 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
Ngày tải lên :
11/12/2013, 15:15
... 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,...
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Tài liệu Module 3: Identifying Threats to Network Security pptx
Ngày tải lên :
21/12/2013, 19:15
... 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...
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Tài liệu Managing Cisco Network Security pptx
Ngày tải lên :
24/01/2014, 19:20
... 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...
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Tài liệu Programming the Be Operating System-Chapter 5: Drawing ppt
Ngày tải lên :
26/01/2014, 07:20
... 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,...
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Tài liệu Programming the Be Operating System-Chapter 8: Text ppt
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,...
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