introduction to public key encryption
A Beginner’s Guide to Network Security: An Introduction to the Key Security Issues for the E-Business Economy doc
Ngày tải lên :
14/03/2014, 22:20
... Reserved.
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A Beginner’s Guide to
Network Security
An Introduction to the Key Security Issues for the E-Business Economy
With the explosion of the public Internet and e-commerce, private ... make calls to employees to gather password
information. Other examples of social engineering include
bribing a coworker to gain access to a server or searching
a colleague’s office to find a password ... perceived as effective.
Organizations must be able to adequately communicate
how they plan to protect their customers.
In addition to protecting their customers, corporations
must protect their employees...
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Tài liệu Introduction to Encryption I pptx
Ngày tải lên :
21/12/2013, 05:17
... private key
• From the private key, compute a public key
• Exchange public keys
• Compute a message key from public key and
their own private key
• Allows users to exchange a secure key over ... be very hard to
retrieve x.
5 - 17
Introduction to Encryption I – SANS GIAC LevelOne
©2000, 2001
17
• a.k.a. Public- Key Encryption
– Slow! Public/ private key pair
– Public keys widely distributed ... 1 key encryption
Public key
• Asymmetric
• Dual of 2 key encryption
–Hash
• One-way transformation
• No key encryption
Types of Cryptosystems
Now lets look at the three basic types of cryptosystems....
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Tài liệu Introduction to Encryption II docx
Ngày tải lên :
21/12/2013, 05:17
... 1949)
Lucifer Cryptosystem
(Feistel, 1974)
Public- Key Cryptography
(Diffie and Hellman, 1976)
RSA
(Rivest, Shamir, Adleman, 1978)
Public- Key Encryption
(Rabin, 1979)
Public- Key Encryption & ... Bob’s public key {n,e} from a public directory. Next, she uses Bob’s public key to encrypt
her plaintext message M to get the ciphertext C = M
e
(mod n). This ciphertext is then communicated
to ... using the term “trapdoor” to refer to a way to decrypt a message using a
different key. So with public key cryptography, one would encrypt the message with a public key.
The “trapdoor” would...
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Tài liệu Introduction to Encryption II pdf
Ngày tải lên :
17/01/2014, 07:20
... using the term “trapdoor” to refer to a way to decrypt a message using a
different key. So with public key cryptography, one would encrypt the message with a public key.
The “trapdoor” would ... fast encryption algorithm
• Widely used; a
de facto
standard
• Symmetric -key, 64-bit block cipher
• 56-bit key size Æ Small 2
56
key space
• Today, DES is not considered secure
DES: Data Encryption ... - 17
Encryption II - SANS
©2001
17
• Advanced Encryption Standard
• AES is a new encryption algorithm(s) that is being
designed to be effective well into the 21st century
AES
Countdown
to AES...
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An introduction to disk drive modeling
Ngày tải lên :
12/09/2012, 14:16
... and
cylinder skewing and sector-based sparing with one spare sector per track. This needs to be accounted for
in mapping logical blocks to the physical sectors.
Adding all these factors results in the ... 97560
sector size 256 bytes 512 bytes
cylinders 1449 1962
tracks per cylinder 8 19
data sectors per track 113 72
number of zones 1 1
track skew 34 sectors 8 sectors
cylinder skew 43 sectors 18 sectors
revolution ... specifications, since the only alternative is to
determine them experimentally.
The information required to determine how much power to apply to the pivot motor and for how long on a
particular seek...
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C++ - I/O Streams as an Introduction to Objects and Classes
Ngày tải lên :
12/09/2012, 22:49
... beginning to the end (for now)
No backing up to read something again (OK to start over)
Just as done from the keyboard
Writing to a file
Sending output to a file
Done from beginning to end ... up to write something again( OK to start over)
Just as done to the screen
Slide 6- 5
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
I/O Streams
I/O refers to ... output
Input is delivered to your program via a stream object
Input can be from
The keyboard
A file
Output is delivered to the output device via a stream
object
Output can be to
The screen
A...
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Introduction to Digital Signal Processing and Filter Design
Ngày tải lên :
13/09/2012, 10:21
... using complementary metal oxide semiconductor (CMOS) transistors. They
used no resistors and inductors, and the whole circuit was fabricated by the
28
INTRODUCTION
TABLE 1.3 ADCs Currently Available
Sampling ... transistors were introduced and fil-
ters were designed without inductors to realize the transfer functions. The design
procedure was much simpler, and device technology also was improved to fabri-
cate ... vacuum tubes
and bipolar junction transistors were developed, the design procedure had to
be changed in order to integrate the models for these active devices into the
filter circuits, but the mathematical...
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Introduction to Wireless Communications
Ngày tải lên :
13/09/2012, 10:52
...
access data stored in a central database
–
Delivers broadband connectivity to schools, libraries, and
government buildings
–
Provides free Internet access to residents and attracts
visitors and ...
channels
6
Bluetooth and Ultra Wide Band
•
Radio frequency identification device (RFID) tags
–
Small chips containing radio transponders
•
Can be used to track inventory
•
Bluetooth and Ultra ... manager
–
Special software that helps identify other Bluetooth
devices
8
Bluetooth and Ultra Wide Band
(continued)
•
Bluetooth
–
Distance: up to 33 feet (10 meters)
–
Bandwidth: 1 Mbps
•
Ultra Wide...
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An Introduction to Software Engineering
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14/09/2012, 11:26
... 2
Objectives
To introduce software engineering and to explain
its importance
To set out the answers to key questions about
software engineering
To introduce ethical and professional issues and
to explain ... developed for a particular
customer or may be developed for a general market.
Software products may be
• Generic - developed to be sold to a range of different customers
e.g. PC software such ... what the
customer wants
• Evolution - changing the software in response to
changing demands.
©Ian Sommerville 2004 Software Engineering, 7th edition. Chapter 1 Slide 1
An Introduction to Software
Engineering
©Ian...
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A simple introduction to working with LVM
Ngày tải lên :
18/09/2012, 10:12
... comes to using LVM effectively it is worth considering the filesystem that
you wish to use upon your logical volumes.
http://www.debian-administration.org/articles/410
A simple introduction to ... be a little confusing to newcomer so this guide intends
to show the basics in a simple manner.
There several pieces of terminology that you'll need to understand to make the best
use of ... (ie. 4x5Gb drives can be combined
into one 20Gb volume group, and you can then create two 10Gb logical
volumes.)
Logically these are stacked from top to bottom like this:
can create a dedicated...
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Cambridge.University.Press.An.Introduction.to.Law.and.Regulation.Text.and.Materials.Apr.2007.pdf
Ngày tải lên :
21/09/2012, 10:39
... contributes to regulatory
enforcement and compliance. As we shall see, central to the study of regulatory
enforcement is the width of discretion within regulatory systems (in the hands
of both public ... first, to consider the extent to which
the analytic map developed in the first four chapters transposes to regulation
in the supranational context, and second, to consider whether the shift to regu-
lation ... previously encountered.
Many often struggled to identify how these strands related to each other or,
indeed, to the legal tradition to which they were accustomed. In short, there
was an acute need...
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Cambridge.University.Press.An.Introduction.to.the.Philosophy.of.Mind.Jan.2000.pdf
Ngày tải lên :
21/09/2012, 10:39
... which these topics are covered has been deliber-
ately chosen so as to enable the reader to build upon the
understanding gained from earlier chapters in getting to
grips with the topics of later ... P
n
would still have sufficed to
cause P to exist. But this is to imply that P is causally overdet-
ermined by M and one or more of P
1
, P
2
, P
n
, contrary to
what we have hitherto assumed. Hence we ... position to adopt, although to adopt it merely in
order to evade the unwelcome conclusion of the physicalist’s
argument would be blatantly ad hoc. To make this position
credible, the dualist needs to...
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Cambridge.University.Press.The.Cambridge.Introduction.to.Modern.British.Fiction.1950-2000.Apr.2002.pdf
Ngày tải lên :
21/09/2012, 11:00
... girlfriend he refuses
to marry) convey an attachment to place that belies his stated intention to
emigrate. In this way Cooper manages to play two contexts off against each
other: historical hindsight ... unique insight into the key themes of post-war life in
Britain.
Where historical and political accounts with pretensions to authority
must necessarily deploy elements drawn from the rhetoric of the ... is to Tricia and Felicity for putting up with a house
swamped by papers and files, and for tolerating all the lost evenings and
weekends.
January 2001
viii
Introduction 3
a turn towards the historical...
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An introduction to franchising
Ngày tải lên :
19/10/2012, 15:42
... EDUCATIONAL FOUNDATION
An Introduction To Franchising 1
Chapter 1:
An Introduction To
Franchising
What is a franchise? What are common franchise terms?
What are the alternatives to franchising?
What ... attention to the contact information of the franchisees who have left the system. These are
people you definitely want to talk to.
THE IFA EDUCATIONAL FOUNDATION
20 An Introduction To Franchising ... Introduction To Franchising
Determine If You Can Afford To Start A Business
MAKE PROFIT POTENTIAL YOUR MOST
IMPORTANT CONSIDERATION!
In order to start a business, you have to have money!
In order to...
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