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Learning Python for Forensics

You're reading from   Learning Python for Forensics Leverage the power of Python in forensic investigations

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781789341690
Length 476 pages
Edition 2nd Edition
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Authors (2):
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Preston Miller Preston Miller
Author Profile Icon Preston Miller
Preston Miller
Chapin Bryce Chapin Bryce
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Chapin Bryce
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Table of Contents (15) Chapters Close

Preface 1. Now for Something Completely Different FREE CHAPTER 2. Python Fundamentals 3. Parsing Text Files 4. Working with Serialized Data Structures 5. Databases in Python 6. Extracting Artifacts from Binary Files 7. Fuzzy Hashing 8. The Media Age 9. Uncovering Time 10. Rapidly Triaging Systems 11. Parsing Outlook PST Containers 12. Recovering Transient Database Records 13. Coming Full Circle 14. Other Books You May Enjoy

Using ssdeep in Python – ssdeep_python.py

This script was tested with both Python 2.7.15 and 3.7.1, and requires the ssdeep version 3.3 third-party library.

As you may have noticed, the prior implementation is almost prohibitively slow. In situations like this, it's best to leverage a language, such as C, that can perform this operation much faster. Luckily for us, spamsum was originally written in C, then further expanded by the ssdeep project, also in C. One of the expansions the ssdeep project provides us with is Python bindings. These bindings allow us to still have our familiar Python function calls while offloading the heavy calculations to our compiled C code. Our next script covers the implementation of the ssdeep library in a Python module to produce the same signatures and handle comparison operations.

In this second example of fuzzy hashing, we're going...

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