mirror of https://github.com/E-Almqvist/cipher
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38 lines
1.1 KiB
38 lines
1.1 KiB
#!/usr/bin/env python
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from lib.input import *
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from lib.vars import alphabet
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from lib.vars import listToString
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if( inputHasKeys(["-k", "-i", "-a"]) ):
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in_key = int(getValueOfKey("-k"))
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in_txt = getValueOfKey("-i")
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in_alphabet = getValueOfKey("-a")
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else:
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print("file.py -k {int KEY} -i {string TXT} -a {string ALPHABET_TYPE}")
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print("-k: The encryption/decryption key")
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print("-i: The text to be encrypted/decrypted")
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print("-a: The alphabet (SWE or ENG)")
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exit()
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alen = len(alphabet[in_alphabet])
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txt_list = list(in_txt)
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decryp_list = [""] * len(in_txt)
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charindex = -1
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for char in txt_list: # loop through all of the chars
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charindex = charindex + 1
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index = alphabet[in_alphabet].index(char)
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print("Decrypting char-index: " + str(charindex) + " (" + char + ":" + str(index) + ")")
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index = index + in_key # shift the alphabet
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while( index > alen - 1 ): #cycle through the alphabet
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index = index - alen
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print(" Alphabet cycle, index: " + str(index))
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charDe = alphabet[in_alphabet][index]
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decryp_list[charindex] = charDe
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print( "Output: " + listToString(decryp_list) )
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