[암호와 해킹] first_encrptor.py

CodeBook 에 대해 변환, CodeBook에 존재하지 않는 단어는 그대로 노출 {'5':'a', '2':'b','#':'d', '8':'e','1':'f','3':'g','4':'h','6':'i','0':'l',\ '9':'m','*':'n','%':'o','=':'p','(':'r',')':'s',';':'t','?':'u','@':'v',':':'y','7':' '}

 

def makeCodebook() : decBook = {'5':'a', '2':'b','#':'d', '8':'e','1':'f','3':'g','4':'h','6':'i','0':'l',\ '9':'m','*':'n','%':'o','=':'p','(':'r',')':'s',';':'t','?':'u','@':'v',':':'y','7':' '}   encBook = dict()   for x,y in decBook.items() : encBook[y] = x   return encBook, decBook   def encoding(msg, encBook) : for i in msg : if i in encBook : msg = msg.replace(i, encBook[i]) return msg   def decoding(msg, decBook) : for i in msg : if i in decBook : msg = msg.replace(i, decBook[i]) return msg #main   if __name__ == '__main__' : plainText = input()   encBook, decBook = makeCodebook()   cipherText = encoding(plainText, encBook) print(cipherText)   decipherText = decoding(cipherText, decBook) print(decipherText)

 

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