How to resolve the algorithm Base64 decode data step by step in the Ruby programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Base64 decode data step by step in the Ruby programming language

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Problem Statement

See Base64 encode data. Now write a program that takes the output of the Base64 encode data task as input and regenerate the original file. When working on the VBA implementation I found several 'solutions' on the net, including one from the software maker himself, that showed output with incorrect padding. Obviously with incorrect padding in the output you can not decode correctly to the original file again.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Base64 decode data step by step in the Ruby programming language

This code decodes a base64 encoded string.

The base64 encoding is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is commonly used to encode binary data such as images, audio, and other binary files.

The code first requires the 'base64' library, which provides methods for encoding and decoding base64 data.

Then it defines a variable called raku_example that contains a base64 encoded string.

The Base64.decode64 method is then used to decode the base64 encoded string and store the result in the raku_example variable.

Finally, the decoded string is printed to the console using the puts method.

The decoded string is:

To err is human, but to really foul things up you need a computer.   -- Paul R. Ehrlich

Source code in the ruby programming language

require 'base64'

raku_example ='
VG8gZXJyIGlzIGh1bWFuLCBidXQgdG8gcmVhbGx5IGZvdWwgdGhpbmdzIHVwIHlvdSBuZWVkIGEgY2
9tcHV0ZXIuCiAgICAtLSBQYXVsIFIuIEVocmxpY2g=
'
puts Base64.decode64 raku_example


  

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