48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
#!~/.pyenv/versions/3.11.6/bin/python
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#
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# Copyright (c) 2024 Cutieguwu | Olivia Brooks
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#
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# -*- coding:utf-8 -*-
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# @Title: CutieDecryptor
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# @Author: Cutieguwu | Olivia Brooks
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# @Collaborator: JellieJayde | Jayde Paquette
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# @Email: owen.brooks77@gmail.com | obroo2@ocdsb.ca
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# @Description: Decrypts a file.
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#
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# @Script: CutieDecrypt.py
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# @Date Created: 10 Apr, 2024
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# @Last Modified: 13 Apr, 2024
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# @Last Modified by: Cutieguwu | Olivia Brooks
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# ----------------------------------------------------------
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def decrypt(dataEncoded: str, keyDecrypt: str, keyEnglish: str):
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"""
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Decrypts a string encoded using a substitution cypher based on the provided key.\n
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Characters closer to index 0 in `key` are more common in the English language.
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"""
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dataDecrypted = ""
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for c in dataEncoded:
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is_found = False
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if c != " ":
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while not is_found:
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for k in keyDecrypt:
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if c == k: # Character found in decryption key.
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dataDecrypted = dataDecrypted + keyEnglish[keyDecrypt.index(k)]
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is_found = True
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else:
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dataDecrypted = dataDecrypted + c
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return dataDecrypted
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with open("dataEncoded19.ENC", "r") as f:
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data = "".join(c for c in f.read() if c != "\n")
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with open("key.txt", "r") as f:
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key = "".join(c for c in f.read() if c != "\n")
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key = "qwertyuiopasdfghjklzxcvbnm" # Temporary - Faux testing key.
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english = "etaoinshrdlcumwfgypbvkjxqz" # Temporary - Lewand's order of english characters; most to least common.
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print(decrypt(data, key, english)) |