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Cryptography with Python

Get real-world skills in Python cryptography, learning to encrypt, hash, and secure data easily.

(CRYPTO-PYTHON.AJ1) / ISBN : 978-1-64459-475-9
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About This Course

This course teaches you how to use Python for cryptography, a key skill for keeping data safe. You’ll start with simple concepts like Caesar ciphers. Eventually, you’ll move on to more advanced techniques like hashing and strong AES and RSA encryptions. Through our hands-on cryptography with Python course, you’ll learn how to protect sensitive information, crack password hashes, and explore real-world encryption methods.

Skills You’ll Get

  • Implement Caeser cipher, ROT13, and XOR encryption techniques in Python
  • Encode and decode data using base64 in Python 
  • Crack Windows and Linux password hashes using Python-based tools 
  • Apply MD5 and SHA hashing algorithms to secure data 
  • Protect your data using AES and RSA encryption
  • Identify weaknesses in encryption modes like ECB and CBC
  • Perform padding Oracle attacks to test encryption vulnerabilities 
  • Use cryptography algorithms in Python to protect sensitive information
  • Analyze encryption challenges and develop solutions using Python scripts
Download Course Outline

1

Preface

  • Who this course is for
  • What this course covers
  • To get the most out of this course
2

Obfuscation

  • About cryptography
  • Installing and setting up Python
  • Caesar cipher and ROT13
  • base64 encoding
  • XOR
  • Challenge 1 – the Caesar cipher
  • Challenge 2 – base64
  • Challenge 3 – XOR
  • Summary
3

Hashing

  • MD5 and SHA hashes
  • Windows password hashes
  • Linux password hashes
  • Challenge 1 – cracking Windows hashes
  • Challenge 2 – cracking many-round hashes
  • Challenge 3 – cracking Linux hashes
  • Summary
4

Strong Encryption

  • Strong encryption with AES
  • ECB and CBC modes
  • Padding oracle attack
  • Strong encryption with RSA
  • Challenge – cracking RSA with similar factors
  • What's next?
  • Summary

1

Obfuscation

  • Implementing a Caesar Cipher
  • Implementing ROT13
  • Handling the Output in Multi-Byte XOR
  • Using Shift Values in a Caesar Cipher
2

Hashing

  • Using Hashing
  • Cracking Windows Hashes
3

Strong Encryption

  • Padding Oracle Attack
  • Making the Pador Function

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Python Crytography involves using Python programming to apply cryptographic methods that render data incomprehensible to anyone without the necessary decryption tools.

Python is a versatile programming language with powerful libraries that offer advanced cryptography functions. Its simplicity, readability, and strong community support make it an excellent choice for executing cryptography algorithms.

  To enroll in this cryptography Python course, you should have: 

  • Basic programming knowledge 
  • Mathematical background 
  • Computer science fundamentals knowledge

The Python Institute offers certifications in data science and security that may complement your skills in cryptography. Also, you can pursue certifications like GIAC Python Coder certification, which validates your ability to write and code using Python.

  Cryptography algorithms can be divided into three types:

  • Symmetric Key Cryptography: Uses the single key for both encoding and decoding data (e.g. AES)
  • Asymmetric Key Cryptography: Uses a pair of keys, a public key for encryption and a privately held key for decryption (e.g. RSA)
  • Hash Functions: Converts data into a fixed-size hash value, which is typically a one-way process.

To use the cryptography library in Python, you'd start by installing it via pip. Once installed, you can import the required modules from the library.

Following are the popular Python cryptography libraries: 

  • PyCrypto: A library offering hash functions and various encryption algorithms 
  • PyCryptodome: A self-contained Python package containing low-level fundamental cryptographic building blocks
  • Cryptography: A library consisting of cryptographic recipes and primitives for secure data handling 
  • M2Crypto: A Python wrapper for Open SSL

The salary of a Python cryptographer can vary based on location, experience, and the specific industry. On average: 

  • Entry-level: Around $70,000 - $90,000 per year 
  • Mid-level: Around $90,000 - $120,000 per year 
  • Senior-level: $120,000 and above per year

Protect Information using Python Cryptography

  Learn how to safeguard your sensitive data with Python cryptography techniques.

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