SecurityArena

Guide to Practical Info Security!

Who's Online

We have 3 guests online
CBK Cryptography
Print E-mail
Written by Administrator   
Friday, 24 July 2009 08:48
Article Index
CBK Cryptography
Definitions
Types of Ciphers
Symmetric vs Asymmetric Cryptography
Types of` Symmetric Ciphers
Types of Symmetric Systems
Types of Asymmetric Systems
One-time pad
Hybrid Encryption Methods
Public Key Infrastructure (PKI)
Hashing
Digital signatures
Key Management
Link versus end-to-end encryption
E-mail standards
Web Security
Transport Layer Security (TLS)
IPSec - Internet Protocol Security
Attacks
All Pages
Page 3 of 19

Types of Ciphers

This diagram illustrates different types of ciphers:

Substitution cipher: It replaces bits, characters, or blocks of characters with different bits, characters or blocks.
Transposition cipher: Using permutation it scrambles the letter. The key determines the how positions of the characters are moved.
Running key cipher: It uses steps in the physical world around us, like books (page, line number and word count). Each word is described by a sequence of numbers.
Concealment cipher: Every X number of words within a text, is a part of the real message.
Last Updated on Friday, 28 August 2009 05:01
 
Please register or login to add your comments to this article.
Comments (1)
-1 Wednesday, 05 August 2009 12:44
ravi
Very helpful....
Tabulated comparisons of the two cryptography, really help to remeber...
thanx
keep up the good work
Display #
yvComment v.1.23.0
Banner
Copyright © 2010 Information Security Arena. All Rights Reserved.
Joomla! is Free Software released under the GNU/GPL License.
 
Joomla 1.5 Templates by Joomlashack