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CSEC 630 Lab Assignment 1 - Introduction to Cryptography

Option 1: Run CrypTool on Your Own PC

To install CrypTool on any Windows type Operating System, simply download the

from the website http://www.cryptool.org/ and double click on the executable SetupCrypToolxxx

(English version) then follow the onscreen instructions. After installation the file all you will need to use is

CrypTool.exe.

There is also a CrypTool port for Linux available for download at:

http://www.cryptoolinux.net/download.html and an online version of CrypTool available at:

http://www.cryptool-online.org/

Option 2: Run CrypTool on UMUC VM (see attachment for instructions)

Refer to the AccessToCyberLabVMs1-13-2014_revMT

Note: there are two parts to this lab, each part contains 4 questions for you to answer.

This document includes an introduction section to CrypTool. Lab part 1 starts on page 11

and Lab part 2 starts on page 17. Please submit a Word document that contains your answers to all

8 questions to Lab1 Assignment.

Note: Lab adapted by permission obtained from CrypTool: http://www.cryptool.org/

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Background: CrypTool

Development of the CrypTool began in 1998 by various German Universities and

companies, since then, it has become an open source project and has involved

developers all over the world. Its purpose is to aid users with understanding the

various concepts and techniques used in cryptography. The program covers a range of

modern ciphers such as RSA, DES and AES as well as classically used ciphers

including the Caesar, Playfair and Vigenère ciphers. CrypTool provides the user with a

variety of tools designed to aid with analysis of messages.

Areas of use

CrypTool has arguably become the de facto tool for studying cryptography. It has two

primary target markets:

Industry

Although it is not known exactly who uses the CrypTool (besides the download

records and the explicit feedback given) it is thought members of the technology

industry...