27 lines
431 B
Python
27 lines
431 B
Python
import string
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def encryption(msg):
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ct = []
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for char in msg:
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ct.append((123 * ord(char) + 18) % 256)
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return bytes(ct)
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dict = {}
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for elem in string.printable:
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enc = encryption(elem)[0]
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dict[elem] = enc
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dict[enc] = elem
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print(dict)
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f = open('./msg.enc','r')
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ct = f.readline()
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ct = [int(ct[i:i+2],16) for i in range(0, len(ct), 2)]
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solve = ""
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for elem in ct:
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solve += dict[elem]
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print(solve) |