Linear Feedback Shift Register - Documentation

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• Authors: Nikesh Bajaj, Jesús Requena Carrión
• Version: 1.0.7 | 03/01/2023
• Homepage : https://pylfsr.github.io

See also

Info

Version: 1.0.7 | Released on 03/01/2023

Linear Feedback Shift Register. This package includes following components:

• Useful Links:
• Installation
• API: LFSR Class
  • Parameters:
  • Methods
    • Clocking (running LFSR):
    • Setters :
    • Getters:
    • Testing LFSR Properties:
    • Displaying/printing:
    • Deprecated/replaced methods :
  • Attributes
• API: Supporting Functions
• Examples
• Basic Examples:
  • 5-bit LFSR with feedback polynomial: x⁵+ x²+1
  • Execute cycles (run LFSR by clock)
  • 5-bit LFSR with custom state and feedback polynomial
  • Fibonacci LFSR
  • Galois LFSR
  • 23-bit LFSR: x²³+ x¹⁸+1
  • 23-bit LFSR: x²³+ x⁵+1
• Displaying & Visualization
  • Printing/Displaying Info
    • Current info
    • Parameters setting
  • Visualizing LFSR:
    • Plotting LFSR with pylsr
  • Dynamic visualization of LFSR - Animation
  • +
  • Printing each state and each cycle
  • Setting clock start:
  • Visualize, 3-bit LFSR at each step, with default counter_start_zero = True
  • Visualize, 3-bit LFSR at each step, with counter_start_zero = False
• LFSR Properties & Tests
  • LFSR Properties:: Test 3+1 properties of LFSR
  • Test LFSR [5,3], for 5-bit LFSR, which we know is a primitive polynomial
  • Test LFSR [5,1], for 5-bit LFSR, which we know is *NOT* a primitive polynomial
  • Test individual properties
  • +
  • Feedback (Primitive) Polynomials:
  • Get a list of feedback polynomials for a m-bit LFSR
  • Get a image replica of a feedback polynomial
  • Changing feedback polynomial in between
  • Changing configuration in between
• Generators
  • A5/1 GSM Stream cipher generator
  • Enhanced A5/1
  • Geffe Generator
• MATLAB CODE
  • Description
  • LFSRv1
  • LFSRv2
  • LFSRv3 (faster)
• Contacts
• API LFSR

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