Cryptography Class by Casey W. O'Brien

MPICT Summer Faculty Development Week

Day 1

CrypTool

CrypTool is a great learning tool, making it easy to apply many encryption techniques, both old and modern.

It comes in both a full-featured download and a more limited online version.

Here CrypTool demonstrates the difference between Cipher-Block Chaining and Electronic Codebook modes of DES encryption. The first 8 bytes are the same, but after that they differ because the nonce changes.

Enigma Simulation in CrypTool

ROT-13 in Bash


Last modified 4:08 pm Monday, June 25, 2012