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Diffstat (limited to 'include/py/xmeye/HorrificallyBrokenPasswordFunction.py')
| -rw-r--r-- | include/py/xmeye/HorrificallyBrokenPasswordFunction.py | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/py/xmeye/HorrificallyBrokenPasswordFunction.py b/include/py/xmeye/HorrificallyBrokenPasswordFunction.py new file mode 100644 index 0000000..9423382 --- /dev/null +++ b/include/py/xmeye/HorrificallyBrokenPasswordFunction.py @@ -0,0 +1,42 @@ +# numenworld-ipcam - Reverse engineering of the NuMenWorld NCV-I536A IP camera +# Copyright (C) 2019-2019 Johannes Bauer +# +# This file is part of numenworld-ipcam (https://github.com/johndoe31415/numenworld-ipcam). +# +# numenworld-ipcam is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; this program is ONLY licensed under +# version 3 of the License, later versions are explicitly excluded. +# +# numenworld-ipcam is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with numenworld-ipcam; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# Johannes Bauer <JohannesBauer@gmx.de> + +import hashlib + + +class HorrificallyBrokenPasswordFunction(): + @classmethod + def derive(self, passphrase): + alphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + assert (len(alphabet) == 62) + passphrase = passphrase.encode("utf-8") + hashval = hashlib.md5(passphrase).digest() + encoded = "" + for i in range(0, 16, 2): + index = (hashval[i] + hashval[i + 1]) % len(alphabet) + char = alphabet[index] + encoded += char + return encoded + + +if __name__ == "__main__": + assert (HorrificallyBrokenPasswordFunction.derive("") == "tlJwpbo6") + assert (HorrificallyBrokenPasswordFunction.derive("abc") == "LkM7s2Ht") |