How to resolve the algorithm CRC-32 step by step in the J programming language

Published on 12 May 2024 09:40 PM
#J

How to resolve the algorithm CRC-32 step by step in the J programming language

Table of Contents

Problem Statement

Demonstrate a method of deriving the Cyclic Redundancy Check from within the language.

The result should be in accordance with ISO 3309, ITU-T V.42, Gzip and PNG. Algorithms are described on Computation of CRC in Wikipedia. This variant of CRC-32 uses LSB-first order, sets the initial CRC to FFFFFFFF16, and complements the final CRC. For the purpose of this task, generate a CRC-32 checksum for the ASCII encoded string:

Let's start with the solution:

Step by Step solution about How to resolve the algorithm CRC-32 step by step in the J programming language

Source code in the j programming language

   ((i.32) e. 32 26 23 22 16 12 11 10 8 7 5 4 2 1 0) 128!:3 'The quick brown fox jumps over the lazy dog'
_3199229127


   (2^32x)|((i.32) e. 32 26 23 22 16 12 11 10 8 7 5 4 2 1 0) 128!:3 'The quick brown fox jumps over the lazy dog'
1095738169
   require'convert'
   hfd (2^32x)|((i.32) e. 32 26 23 22 16 12 11 10 8 7 5 4 2 1 0) 128!:3 'The quick brown fox jumps over the lazy dog'
414FA339


  

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