Block stuff

master
E. Almqvist 5 years ago
parent 4f276400d7
commit dad5e11ff9
  1. 33
      block.py
  2. 3
      caesar.py

@ -0,0 +1,33 @@
from lib.input import *
from lib.vars import alphabet
from lib.vars import listToString
if( inputHasKeys(["-k", "-i", "-t"]) ):
in_key = getValueOfKey("-k")
in_txt = getValueOfKey("-i")
in_mode = int(getValueOfKey("-t"))
blockSize = len(in_key)
else:
print("file.py -k {int KEY} -i {string TXT} -t {MODE}")
print("-k: The encryption/decryption key")
print("-i: The text to be encrypted/decrypted")
print("-t: The mode (0=encrypt or 1=decrypt)")
exit()
def keyToIntTuple(key):
return tuple(map(int, list(key)))
def applyKeyToBlock(keyT, blockL): # function to apply a key to a block
blockDe = [""] * blockSize
for i in range(blockSize):
blockDe[i] = blockL[keyT[i]]
print(blockDe)
return blockDe
KEY = keyToIntTuple(in_key) # define and make the key a tuple so that we can index it
applyKeyToBlock(keyToIntTuple(in_key), list(in_txt))

@ -26,7 +26,8 @@ for char in txt_list: # loop through all of the chars
print("Decrypting char-index: " + str(charindex) + " (" + char + ")") print("Decrypting char-index: " + str(charindex) + " (" + char + ")")
index = index + in_key # shift the alphabet index = index + in_key # shift the alphabet
while( index > alen - 1 ): #cycle through the alphabet while( index > alen - 1 ): #cycle through the alphabet
print("Alphabet cycle")
index = (index + in_key) - (alen - 1) index = (index + in_key) - (alen - 1)
decryp_list[charindex] = alphabet[in_alphabet][index] decryp_list[charindex] = alphabet[in_alphabet][index]

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