A Brief Introduction to Hashing

Whenever I teach Learning Tree Course 468, System and Network Security Introduction people ask what “hashing” is. I generally describe it from a computer science perspective. Let’s say you want to build a tool to search for words in the dictionary. There are lots of ways to process a list of words to search for a […]
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Your Computer is Too Fast

Yes, I am still obsessed with authentication. This article didn’t dissuade me. Earlier this week I was looking at password cracking tools to use in the hands-on exercise in Learning Tree’s introduction to security course. We currently use an older tool that cracks based on a limited wordlist (usually called a dictionary) and a tool […]
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