Encoder를 만든 것과 유사히 Decoder를 만들었다.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | import sys print "\ndecoded String :", rf = open(sys.argv[1], "r") wf = open("Decoded-"+sys.argv[1], "w") lines = rf.readlines() base = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" string = "" eibit = list() for line in lines: for char in line: if char != "=": value = format(base.find(char), 'b') for i in range(6-len(value)) : string += "0" string += value i=8 for j in range(len(string)/8) : eibit.append(string[i-8:i]) i+=8 for bina in eibit: sys.stdout.write(chr(int(bina, 2))) wf.write(chr(int(bina, 2))) print "" rf.close() wf.close() | cs |
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