Forked from Spaceghost/DecryptWindowsProductKey.py
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November 8, 2020 22:12
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A script to decrypt windows product keys written in python
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| def DecodeKey(rpk): | |
| rpkOffset = 52 | |
| i = 28 | |
| szPossibleChars = "BCDFGHJKMPQRTVWXY2346789" | |
| szProductKey = "" | |
| while i >= 0: | |
| dwAccumulator = 0 | |
| j = 14 | |
| while j >= 0: | |
| dwAccumulator = dwAccumulator * 256 | |
| d = rpk[j+rpkOffset] | |
| if isinstance(d, str): | |
| d = ord(d) | |
| dwAccumulator = d + dwAccumulator | |
| rpk[j+rpkOffset] = (dwAccumulator / 24) if (dwAccumulator / 24) <= 255 else 255 | |
| dwAccumulator = dwAccumulator % 24 | |
| j = j - 1 | |
| i = i - 1 | |
| szProductKey = szPossibleChars[dwAccumulator] + szProductKey | |
| if ((29 - i) % 6) == 0 and i != -1: | |
| i = i - 1 | |
| szProductKey = "-" + szProductKey | |
| return szProductKey |
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