How to resolve the algorithm One-time pad step by step in the J programming language
Published on 12 May 2024 09:40 PM
How to resolve the algorithm One-time pad step by step in the J programming language
Table of Contents
Problem Statement
Implement a One-time pad, for encrypting and decrypting messages. To keep it simple, we will be using letters only. To support the management of pad-files:
For example, here is the data from Wikipedia:
Let's start with the solution:
Step by Step solution about How to resolve the algorithm One-time pad step by step in the J programming language
Source code in the j programming language
require'convert/misc/vig convert/misc/ascii85'
randseq=: {{ 2!:0'dd 2>/dev/null if=/dev/urandom count=1 bs=',":y }}
genpad=: {{ EMPTY [ (randseq y) fwrite x }}
encrypt=: {{ toascii85 (fread x) 0 vig a. y }}
decrypt=: {{ (fread x) 1 vig a. fromascii85 y }}
'example' genpad 1000
'example' encrypt 'this is a test'
hc>*>I2nEB,6b#MdE;~>
'example' decrypt 'hc>*>I2nEB,6b#MdE;~>'
this is a test
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