14 lines
427 B
Python
14 lines
427 B
Python
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from string import maketrans, lowercase, digits, punctuation, whitespace
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BLKSZ = 5
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trtbl = maketrans(lowercase+digits, "".join(reversed(lowercase))+digits)
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def base_trans(text):
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return text.lower().translate(trtbl, punctuation+whitespace)
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def encode(plain):
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cipher = base_trans(plain)
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return " ".join([cipher[i:i+BLKSZ] for i in range(0,len(cipher),BLKSZ)])
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def decode(ciphered):
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return base_trans(ciphered)
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