rimossi cloudscraper, simplejson e torrentool, aggiornato sambatools
This commit is contained in:
marco
148
lib/sambatools/python3/smb/utils/U32.py
Normal file
148
lib/sambatools/python3/smb/utils/U32.py
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@@ -0,0 +1,148 @@
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# U32.py implements 32-bit unsigned int class for Python
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# Version 1.0
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# Copyright (C) 2001-2002 Dmitry Rozmanov
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
|
||||
# License as published by the Free Software Foundation; either
|
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# version 2.1 of the License, or (at your option) any later version.
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||||
#
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||||
# This library 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
|
||||
# Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU Lesser General Public
|
||||
# License along with this library; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# e-mail: dima@xenon.spb.ru
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#
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#====================================================================
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C = 0x1000000000
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#--------------------------------------------------------------------
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def norm(n):
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return n & 0xFFFFFFFF
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#====================================================================
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class U32:
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v = 0
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#--------------------------------------------------------------------
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def __init__(self, value = 0):
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self.v = C + norm(abs(int(value)))
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#--------------------------------------------------------------------
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def set(self, value = 0):
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self.v = C + norm(abs(int(value)))
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#--------------------------------------------------------------------
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def __repr__(self):
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return hex(norm(self.v))
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#--------------------------------------------------------------------
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def __long__(self): return int(norm(self.v))
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#--------------------------------------------------------------------
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def __int__(self): return int(norm(self.v))
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#--------------------------------------------------------------------
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def __chr__(self): return chr(norm(self.v))
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#--------------------------------------------------------------------
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def __add__(self, b):
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r = U32()
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r.v = C + norm(self.v + b.v)
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return r
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#--------------------------------------------------------------------
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def __sub__(self, b):
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r = U32()
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if self.v < b.v:
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r.v = C + norm(0x100000000 - (b.v - self.v))
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else: r.v = C + norm(self.v - b.v)
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return r
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#--------------------------------------------------------------------
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def __mul__(self, b):
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r = U32()
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r.v = C + norm(self.v * b.v)
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return r
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#--------------------------------------------------------------------
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def __div__(self, b):
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r = U32()
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r.v = C + (norm(self.v) / norm(b.v))
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return r
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#--------------------------------------------------------------------
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def __mod__(self, b):
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r = U32()
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r.v = C + (norm(self.v) % norm(b.v))
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return r
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#--------------------------------------------------------------------
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def __neg__(self): return U32(self.v)
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#--------------------------------------------------------------------
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def __pos__(self): return U32(self.v)
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#--------------------------------------------------------------------
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def __abs__(self): return U32(self.v)
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#--------------------------------------------------------------------
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def __invert__(self):
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r = U32()
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r.v = C + norm(~self.v)
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return r
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#--------------------------------------------------------------------
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def __lshift__(self, b):
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r = U32()
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r.v = C + norm(self.v << b)
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return r
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#--------------------------------------------------------------------
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def __rshift__(self, b):
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r = U32()
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r.v = C + (norm(self.v) >> b)
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return r
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#--------------------------------------------------------------------
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def __and__(self, b):
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r = U32()
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r.v = C + norm(self.v & b.v)
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return r
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#--------------------------------------------------------------------
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def __or__(self, b):
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r = U32()
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r.v = C + norm(self.v | b.v)
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return r
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#--------------------------------------------------------------------
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def __xor__(self, b):
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r = U32()
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r.v = C + norm(self.v ^ b.v)
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return r
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#--------------------------------------------------------------------
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def __not__(self):
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return U32(not norm(self.v))
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#--------------------------------------------------------------------
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def truth(self):
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return norm(self.v)
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#--------------------------------------------------------------------
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def __cmp__(self, b):
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if norm(self.v) > norm(b.v): return 1
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elif norm(self.v) < norm(b.v): return -1
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else: return 0
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#--------------------------------------------------------------------
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def __bool__(self):
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return norm(self.v)
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3
lib/sambatools/python3/smb/utils/__init__.py
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3
lib/sambatools/python3/smb/utils/__init__.py
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@@ -0,0 +1,3 @@
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def convertFILETIMEtoEpoch(t):
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return (t - 116444736000000000) / 10000000.0;
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256
lib/sambatools/python3/smb/utils/md4.py
Normal file
256
lib/sambatools/python3/smb/utils/md4.py
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@@ -0,0 +1,256 @@
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# md4.py implements md4 hash class for Python
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# Version 1.0
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# Copyright (C) 2001-2002 Dmitry Rozmanov
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#
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# based on md4.c from "the Python Cryptography Toolkit, version 1.0.0
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# Copyright (C) 1995, A.M. Kuchling"
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
|
||||
# License as published by the Free Software Foundation; either
|
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library 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
|
||||
# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
|
||||
# License along with this library; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# e-mail: dima@xenon.spb.ru
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#
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#====================================================================
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# MD4 validation data
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md4_test= [
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('', 0x31d6cfe0d16ae931b73c59d7e0c089c0),
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("a", 0xbde52cb31de33e46245e05fbdbd6fb24),
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("abc", 0xa448017aaf21d8525fc10ae87aa6729d),
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("message digest", 0xd9130a8164549fe818874806e1c7014b),
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("abcdefghijklmnopqrstuvwxyz", 0xd79e1c308aa5bbcdeea8ed63df412da9),
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("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
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0x043f8582f241db351ce627e153e7f0e4),
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("12345678901234567890123456789012345678901234567890123456789012345678901234567890",
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0xe33b4ddc9c38f2199c3e7b164fcc0536),
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]
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#====================================================================
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from .U32 import U32
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#--------------------------------------------------------------------
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class MD4:
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A = None
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B = None
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C = None
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D = None
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count, len1, len2 = None, None, None
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buf = []
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#-----------------------------------------------------
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def __init__(self):
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self.A = U32(0x67452301)
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self.B = U32(0xefcdab89)
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self.C = U32(0x98badcfe)
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self.D = U32(0x10325476)
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self.count, self.len1, self.len2 = U32(0), U32(0), U32(0)
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self.buf = [0x00] * 64
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#-----------------------------------------------------
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def __repr__(self):
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r = 'A = %s, \nB = %s, \nC = %s, \nD = %s.\n' % (self.A.__repr__(), self.B.__repr__(), self.C.__repr__(), self.D.__repr__())
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r = r + 'count = %s, \nlen1 = %s, \nlen2 = %s.\n' % (self.count.__repr__(), self.len1.__repr__(), self.len2.__repr__())
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for i in range(4):
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for j in range(16):
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r = r + '%4s ' % hex(self.buf[i+j])
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r = r + '\n'
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return r
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#-----------------------------------------------------
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def make_copy(self):
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dest = new()
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dest.len1 = self.len1
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dest.len2 = self.len2
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dest.A = self.A
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dest.B = self.B
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dest.C = self.C
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dest.D = self.D
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dest.count = self.count
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for i in range(int(self.count)):
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dest.buf[i] = self.buf[i]
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return dest
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#-----------------------------------------------------
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def update(self, str):
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if isinstance(str, bytes):
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buf = list(str)
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else:
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buf = [ord(i) for i in str]
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ilen = U32(len(buf))
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# check if the first length is out of range
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# as the length is measured in bits then multiplay it by 8
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if (int(self.len1 + (ilen << 3)) < int(self.len1)):
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self.len2 = self.len2 + U32(1)
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self.len1 = self.len1 + (ilen << 3)
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self.len2 = self.len2 + (ilen >> 29)
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L = U32(0)
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bufpos = 0
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while (int(ilen) > 0):
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if (64 - int(self.count)) < int(ilen): L = U32(64 - int(self.count))
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else: L = ilen
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for i in range(int(L)): self.buf[i + int(self.count)] = buf[i + bufpos]
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self.count = self.count + L
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ilen = ilen - L
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bufpos = bufpos + int(L)
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if (int(self.count) == 64):
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self.count = U32(0)
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X = []
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i = 0
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for j in range(16):
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X.append(U32(self.buf[i]) + (U32(self.buf[i+1]) << 8) + \
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(U32(self.buf[i+2]) << 16) + (U32(self.buf[i+3]) << 24))
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i = i + 4
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A = self.A
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B = self.B
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C = self.C
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D = self.D
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A = f1(A,B,C,D, 0, 3, X)
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D = f1(D,A,B,C, 1, 7, X)
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C = f1(C,D,A,B, 2,11, X)
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B = f1(B,C,D,A, 3,19, X)
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A = f1(A,B,C,D, 4, 3, X)
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D = f1(D,A,B,C, 5, 7, X)
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C = f1(C,D,A,B, 6,11, X)
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B = f1(B,C,D,A, 7,19, X)
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A = f1(A,B,C,D, 8, 3, X)
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D = f1(D,A,B,C, 9, 7, X)
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C = f1(C,D,A,B,10,11, X)
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B = f1(B,C,D,A,11,19, X)
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A = f1(A,B,C,D,12, 3, X)
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D = f1(D,A,B,C,13, 7, X)
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C = f1(C,D,A,B,14,11, X)
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B = f1(B,C,D,A,15,19, X)
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||||
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A = f2(A,B,C,D, 0, 3, X)
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D = f2(D,A,B,C, 4, 5, X)
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C = f2(C,D,A,B, 8, 9, X)
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B = f2(B,C,D,A,12,13, X)
|
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A = f2(A,B,C,D, 1, 3, X)
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D = f2(D,A,B,C, 5, 5, X)
|
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C = f2(C,D,A,B, 9, 9, X)
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B = f2(B,C,D,A,13,13, X)
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A = f2(A,B,C,D, 2, 3, X)
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D = f2(D,A,B,C, 6, 5, X)
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C = f2(C,D,A,B,10, 9, X)
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||||
B = f2(B,C,D,A,14,13, X)
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||||
A = f2(A,B,C,D, 3, 3, X)
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||||
D = f2(D,A,B,C, 7, 5, X)
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||||
C = f2(C,D,A,B,11, 9, X)
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B = f2(B,C,D,A,15,13, X)
|
||||
|
||||
A = f3(A,B,C,D, 0, 3, X)
|
||||
D = f3(D,A,B,C, 8, 9, X)
|
||||
C = f3(C,D,A,B, 4,11, X)
|
||||
B = f3(B,C,D,A,12,15, X)
|
||||
A = f3(A,B,C,D, 2, 3, X)
|
||||
D = f3(D,A,B,C,10, 9, X)
|
||||
C = f3(C,D,A,B, 6,11, X)
|
||||
B = f3(B,C,D,A,14,15, X)
|
||||
A = f3(A,B,C,D, 1, 3, X)
|
||||
D = f3(D,A,B,C, 9, 9, X)
|
||||
C = f3(C,D,A,B, 5,11, X)
|
||||
B = f3(B,C,D,A,13,15, X)
|
||||
A = f3(A,B,C,D, 3, 3, X)
|
||||
D = f3(D,A,B,C,11, 9, X)
|
||||
C = f3(C,D,A,B, 7,11, X)
|
||||
B = f3(B,C,D,A,15,15, X)
|
||||
|
||||
self.A = self.A + A
|
||||
self.B = self.B + B
|
||||
self.C = self.C + C
|
||||
self.D = self.D + D
|
||||
|
||||
#-----------------------------------------------------
|
||||
def digest(self):
|
||||
|
||||
res = [0x00] * 16
|
||||
s = [0x00] * 8
|
||||
padding = [0x00] * 64
|
||||
padding[0] = 0x80
|
||||
padlen, oldlen1, oldlen2 = U32(0), U32(0), U32(0)
|
||||
|
||||
temp = self.make_copy()
|
||||
|
||||
oldlen1 = temp.len1
|
||||
oldlen2 = temp.len2
|
||||
if (56 <= int(self.count)): padlen = U32(56 - int(self.count) + 64)
|
||||
else: padlen = U32(56 - int(self.count))
|
||||
|
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temp.update(int_array2str(padding[:int(padlen)]))
|
||||
|
||||
s[0]= (oldlen1) & U32(0xFF)
|
||||
s[1]=((oldlen1) >> 8) & U32(0xFF)
|
||||
s[2]=((oldlen1) >> 16) & U32(0xFF)
|
||||
s[3]=((oldlen1) >> 24) & U32(0xFF)
|
||||
s[4]= (oldlen2) & U32(0xFF)
|
||||
s[5]=((oldlen2) >> 8) & U32(0xFF)
|
||||
s[6]=((oldlen2) >> 16) & U32(0xFF)
|
||||
s[7]=((oldlen2) >> 24) & U32(0xFF)
|
||||
temp.update(int_array2str(s))
|
||||
|
||||
res[ 0]= temp.A & U32(0xFF)
|
||||
res[ 1]=(temp.A >> 8) & U32(0xFF)
|
||||
res[ 2]=(temp.A >> 16) & U32(0xFF)
|
||||
res[ 3]=(temp.A >> 24) & U32(0xFF)
|
||||
res[ 4]= temp.B & U32(0xFF)
|
||||
res[ 5]=(temp.B >> 8) & U32(0xFF)
|
||||
res[ 6]=(temp.B >> 16) & U32(0xFF)
|
||||
res[ 7]=(temp.B >> 24) & U32(0xFF)
|
||||
res[ 8]= temp.C & U32(0xFF)
|
||||
res[ 9]=(temp.C >> 8) & U32(0xFF)
|
||||
res[10]=(temp.C >> 16) & U32(0xFF)
|
||||
res[11]=(temp.C >> 24) & U32(0xFF)
|
||||
res[12]= temp.D & U32(0xFF)
|
||||
res[13]=(temp.D >> 8) & U32(0xFF)
|
||||
res[14]=(temp.D >> 16) & U32(0xFF)
|
||||
res[15]=(temp.D >> 24) & U32(0xFF)
|
||||
|
||||
return int_array2str(res).encode('UTF-16LE')
|
||||
|
||||
#====================================================================
|
||||
# helpers
|
||||
def F(x, y, z): return (((x) & (y)) | ((~x) & (z)))
|
||||
def G(x, y, z): return (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
|
||||
def H(x, y, z): return ((x) ^ (y) ^ (z))
|
||||
|
||||
def ROL(x, n): return (((x) << n) | ((x) >> (32-n)))
|
||||
|
||||
def f1(a, b, c, d, k, s, X): return ROL(a + F(b, c, d) + X[k], s)
|
||||
def f2(a, b, c, d, k, s, X): return ROL(a + G(b, c, d) + X[k] + U32(0x5a827999), s)
|
||||
def f3(a, b, c, d, k, s, X): return ROL(a + H(b, c, d) + X[k] + U32(0x6ed9eba1), s)
|
||||
|
||||
#--------------------------------------------------------------------
|
||||
# helper function
|
||||
def int_array2str(array):
|
||||
str = ''
|
||||
for i in array:
|
||||
str = str + chr(i)
|
||||
return str
|
||||
|
||||
#--------------------------------------------------------------------
|
||||
# To be able to use md4.new() instead of md4.MD4()
|
||||
new = MD4
|
||||
852
lib/sambatools/python3/smb/utils/pyDes.py
Normal file
852
lib/sambatools/python3/smb/utils/pyDes.py
Normal file
@@ -0,0 +1,852 @@
|
||||
#############################################################################
|
||||
# Documentation #
|
||||
#############################################################################
|
||||
|
||||
# Author: Todd Whiteman
|
||||
# Date: 16th March, 2009
|
||||
# Verion: 2.0.0
|
||||
# License: Public Domain - free to do as you wish
|
||||
# Homepage: http://twhiteman.netfirms.com/des.html
|
||||
#
|
||||
# This is a pure python implementation of the DES encryption algorithm.
|
||||
# It's pure python to avoid portability issues, since most DES
|
||||
# implementations are programmed in C (for performance reasons).
|
||||
#
|
||||
# Triple DES class is also implemented, utilising the DES base. Triple DES
|
||||
# is either DES-EDE3 with a 24 byte key, or DES-EDE2 with a 16 byte key.
|
||||
#
|
||||
# See the README.txt that should come with this python module for the
|
||||
# implementation methods used.
|
||||
#
|
||||
# Thanks to:
|
||||
# * David Broadwell for ideas, comments and suggestions.
|
||||
# * Mario Wolff for pointing out and debugging some triple des CBC errors.
|
||||
# * Santiago Palladino for providing the PKCS5 padding technique.
|
||||
# * Shaya for correcting the PAD_PKCS5 triple des CBC errors.
|
||||
#
|
||||
"""A pure python implementation of the DES and TRIPLE DES encryption algorithms.
|
||||
|
||||
Class initialization
|
||||
--------------------
|
||||
pyDes.des(key, [mode], [IV], [pad], [padmode])
|
||||
pyDes.triple_des(key, [mode], [IV], [pad], [padmode])
|
||||
|
||||
key -> Bytes containing the encryption key. 8 bytes for DES, 16 or 24 bytes
|
||||
for Triple DES
|
||||
mode -> Optional argument for encryption type, can be either
|
||||
pyDes.ECB (Electronic Code Book) or pyDes.CBC (Cypher Block Chaining)
|
||||
IV -> Optional Initial Value bytes, must be supplied if using CBC mode.
|
||||
Length must be 8 bytes.
|
||||
pad -> Optional argument, set the pad character (PAD_NORMAL) to use during
|
||||
all encrypt/decrpt operations done with this instance.
|
||||
padmode -> Optional argument, set the padding mode (PAD_NORMAL or PAD_PKCS5)
|
||||
to use during all encrypt/decrpt operations done with this instance.
|
||||
|
||||
I recommend to use PAD_PKCS5 padding, as then you never need to worry about any
|
||||
padding issues, as the padding can be removed unambiguously upon decrypting
|
||||
data that was encrypted using PAD_PKCS5 padmode.
|
||||
|
||||
Common methods
|
||||
--------------
|
||||
encrypt(data, [pad], [padmode])
|
||||
decrypt(data, [pad], [padmode])
|
||||
|
||||
data -> Bytes to be encrypted/decrypted
|
||||
pad -> Optional argument. Only when using padmode of PAD_NORMAL. For
|
||||
encryption, adds this characters to the end of the data block when
|
||||
data is not a multiple of 8 bytes. For decryption, will remove the
|
||||
trailing characters that match this pad character from the last 8
|
||||
bytes of the unencrypted data block.
|
||||
padmode -> Optional argument, set the padding mode, must be one of PAD_NORMAL
|
||||
or PAD_PKCS5). Defaults to PAD_NORMAL.
|
||||
|
||||
|
||||
Example
|
||||
-------
|
||||
from pyDes import *
|
||||
|
||||
data = "Please encrypt my data"
|
||||
k = des("DESCRYPT", CBC, "\0\0\0\0\0\0\0\0", pad=None, padmode=PAD_PKCS5)
|
||||
# For Python3, you'll need to use bytes, i.e.:
|
||||
# data = b"Please encrypt my data"
|
||||
# k = des(b"DESCRYPT", CBC, b"\0\0\0\0\0\0\0\0", pad=None, padmode=PAD_PKCS5)
|
||||
d = k.encrypt(data)
|
||||
print "Encrypted: %r" % d
|
||||
print "Decrypted: %r" % k.decrypt(d)
|
||||
assert k.decrypt(d, padmode=PAD_PKCS5) == data
|
||||
|
||||
|
||||
See the module source (pyDes.py) for more examples of use.
|
||||
You can also run the pyDes.py file without and arguments to see a simple test.
|
||||
|
||||
Note: This code was not written for high-end systems needing a fast
|
||||
implementation, but rather a handy portable solution with small usage.
|
||||
|
||||
"""
|
||||
|
||||
import sys
|
||||
|
||||
# _pythonMajorVersion is used to handle Python2 and Python3 differences.
|
||||
_pythonMajorVersion = sys.version_info[0]
|
||||
|
||||
# Modes of crypting / cyphering
|
||||
ECB = 0
|
||||
CBC = 1
|
||||
|
||||
# Modes of padding
|
||||
PAD_NORMAL = 1
|
||||
PAD_PKCS5 = 2
|
||||
|
||||
# PAD_PKCS5: is a method that will unambiguously remove all padding
|
||||
# characters after decryption, when originally encrypted with
|
||||
# this padding mode.
|
||||
# For a good description of the PKCS5 padding technique, see:
|
||||
# http://www.faqs.org/rfcs/rfc1423.html
|
||||
|
||||
# The base class shared by des and triple des.
|
||||
class _baseDes(object):
|
||||
def __init__(self, mode=ECB, IV=None, pad=None, padmode=PAD_NORMAL):
|
||||
if IV:
|
||||
IV = self._guardAgainstUnicode(IV)
|
||||
if pad:
|
||||
pad = self._guardAgainstUnicode(pad)
|
||||
self.block_size = 8
|
||||
# Sanity checking of arguments.
|
||||
if pad and padmode == PAD_PKCS5:
|
||||
raise ValueError("Cannot use a pad character with PAD_PKCS5")
|
||||
if IV and len(IV) != self.block_size:
|
||||
raise ValueError("Invalid Initial Value (IV), must be a multiple of " + str(self.block_size) + " bytes")
|
||||
|
||||
# Set the passed in variables
|
||||
self._mode = mode
|
||||
self._iv = IV
|
||||
self._padding = pad
|
||||
self._padmode = padmode
|
||||
|
||||
def getKey(self):
|
||||
"""getKey() -> bytes"""
|
||||
return self.__key
|
||||
|
||||
def setKey(self, key):
|
||||
"""Will set the crypting key for this object."""
|
||||
key = self._guardAgainstUnicode(key)
|
||||
self.__key = key
|
||||
|
||||
def getMode(self):
|
||||
"""getMode() -> pyDes.ECB or pyDes.CBC"""
|
||||
return self._mode
|
||||
|
||||
def setMode(self, mode):
|
||||
"""Sets the type of crypting mode, pyDes.ECB or pyDes.CBC"""
|
||||
self._mode = mode
|
||||
|
||||
def getPadding(self):
|
||||
"""getPadding() -> bytes of length 1. Padding character."""
|
||||
return self._padding
|
||||
|
||||
def setPadding(self, pad):
|
||||
"""setPadding() -> bytes of length 1. Padding character."""
|
||||
if pad is not None:
|
||||
pad = self._guardAgainstUnicode(pad)
|
||||
self._padding = pad
|
||||
|
||||
def getPadMode(self):
|
||||
"""getPadMode() -> pyDes.PAD_NORMAL or pyDes.PAD_PKCS5"""
|
||||
return self._padmode
|
||||
|
||||
def setPadMode(self, mode):
|
||||
"""Sets the type of padding mode, pyDes.PAD_NORMAL or pyDes.PAD_PKCS5"""
|
||||
self._padmode = mode
|
||||
|
||||
def getIV(self):
|
||||
"""getIV() -> bytes"""
|
||||
return self._iv
|
||||
|
||||
def setIV(self, IV):
|
||||
"""Will set the Initial Value, used in conjunction with CBC mode"""
|
||||
if not IV or len(IV) != self.block_size:
|
||||
raise ValueError("Invalid Initial Value (IV), must be a multiple of " + str(self.block_size) + " bytes")
|
||||
IV = self._guardAgainstUnicode(IV)
|
||||
self._iv = IV
|
||||
|
||||
def _padData(self, data, pad, padmode):
|
||||
# Pad data depending on the mode
|
||||
if padmode is None:
|
||||
# Get the default padding mode.
|
||||
padmode = self.getPadMode()
|
||||
if pad and padmode == PAD_PKCS5:
|
||||
raise ValueError("Cannot use a pad character with PAD_PKCS5")
|
||||
|
||||
if padmode == PAD_NORMAL:
|
||||
if len(data) % self.block_size == 0:
|
||||
# No padding required.
|
||||
return data
|
||||
|
||||
if not pad:
|
||||
# Get the default padding.
|
||||
pad = self.getPadding()
|
||||
if not pad:
|
||||
raise ValueError("Data must be a multiple of " + str(self.block_size) + " bytes in length. Use padmode=PAD_PKCS5 or set the pad character.")
|
||||
data += (self.block_size - (len(data) % self.block_size)) * pad
|
||||
|
||||
elif padmode == PAD_PKCS5:
|
||||
pad_len = 8 - (len(data) % self.block_size)
|
||||
if _pythonMajorVersion < 3:
|
||||
data += pad_len * chr(pad_len)
|
||||
else:
|
||||
data += bytes([pad_len] * pad_len)
|
||||
|
||||
return data
|
||||
|
||||
def _unpadData(self, data, pad, padmode):
|
||||
# Unpad data depending on the mode.
|
||||
if not data:
|
||||
return data
|
||||
if pad and padmode == PAD_PKCS5:
|
||||
raise ValueError("Cannot use a pad character with PAD_PKCS5")
|
||||
if padmode is None:
|
||||
# Get the default padding mode.
|
||||
padmode = self.getPadMode()
|
||||
|
||||
if padmode == PAD_NORMAL:
|
||||
if not pad:
|
||||
# Get the default padding.
|
||||
pad = self.getPadding()
|
||||
if pad:
|
||||
data = data[:-self.block_size] + \
|
||||
data[-self.block_size:].rstrip(pad)
|
||||
|
||||
elif padmode == PAD_PKCS5:
|
||||
if _pythonMajorVersion < 3:
|
||||
pad_len = ord(data[-1])
|
||||
else:
|
||||
pad_len = data[-1]
|
||||
data = data[:-pad_len]
|
||||
|
||||
return data
|
||||
|
||||
def _guardAgainstUnicode(self, data):
|
||||
# Only accept byte strings or ascii unicode values, otherwise
|
||||
# there is no way to correctly decode the data into bytes.
|
||||
if _pythonMajorVersion < 3:
|
||||
if isinstance(data, str):
|
||||
raise ValueError("pyDes can only work with bytes, not Unicode strings.")
|
||||
else:
|
||||
if isinstance(data, str):
|
||||
# Only accept ascii unicode values.
|
||||
try:
|
||||
return data.encode('ascii')
|
||||
except UnicodeEncodeError:
|
||||
pass
|
||||
raise ValueError("pyDes can only work with encoded strings, not Unicode.")
|
||||
return data
|
||||
|
||||
#############################################################################
|
||||
# DES #
|
||||
#############################################################################
|
||||
class des(_baseDes):
|
||||
"""DES encryption/decrytpion class
|
||||
|
||||
Supports ECB (Electronic Code Book) and CBC (Cypher Block Chaining) modes.
|
||||
|
||||
pyDes.des(key,[mode], [IV])
|
||||
|
||||
key -> Bytes containing the encryption key, must be exactly 8 bytes
|
||||
mode -> Optional argument for encryption type, can be either pyDes.ECB
|
||||
(Electronic Code Book), pyDes.CBC (Cypher Block Chaining)
|
||||
IV -> Optional Initial Value bytes, must be supplied if using CBC mode.
|
||||
Must be 8 bytes in length.
|
||||
pad -> Optional argument, set the pad character (PAD_NORMAL) to use
|
||||
during all encrypt/decrpt operations done with this instance.
|
||||
padmode -> Optional argument, set the padding mode (PAD_NORMAL or
|
||||
PAD_PKCS5) to use during all encrypt/decrpt operations done
|
||||
with this instance.
|
||||
"""
|
||||
|
||||
|
||||
# Permutation and translation tables for DES
|
||||
__pc1 = [56, 48, 40, 32, 24, 16, 8,
|
||||
0, 57, 49, 41, 33, 25, 17,
|
||||
9, 1, 58, 50, 42, 34, 26,
|
||||
18, 10, 2, 59, 51, 43, 35,
|
||||
62, 54, 46, 38, 30, 22, 14,
|
||||
6, 61, 53, 45, 37, 29, 21,
|
||||
13, 5, 60, 52, 44, 36, 28,
|
||||
20, 12, 4, 27, 19, 11, 3
|
||||
]
|
||||
|
||||
# number left rotations of pc1
|
||||
__left_rotations = [
|
||||
1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
|
||||
]
|
||||
|
||||
# permuted choice key (table 2)
|
||||
__pc2 = [
|
||||
13, 16, 10, 23, 0, 4,
|
||||
2, 27, 14, 5, 20, 9,
|
||||
22, 18, 11, 3, 25, 7,
|
||||
15, 6, 26, 19, 12, 1,
|
||||
40, 51, 30, 36, 46, 54,
|
||||
29, 39, 50, 44, 32, 47,
|
||||
43, 48, 38, 55, 33, 52,
|
||||
45, 41, 49, 35, 28, 31
|
||||
]
|
||||
|
||||
# initial permutation IP
|
||||
__ip = [57, 49, 41, 33, 25, 17, 9, 1,
|
||||
59, 51, 43, 35, 27, 19, 11, 3,
|
||||
61, 53, 45, 37, 29, 21, 13, 5,
|
||||
63, 55, 47, 39, 31, 23, 15, 7,
|
||||
56, 48, 40, 32, 24, 16, 8, 0,
|
||||
58, 50, 42, 34, 26, 18, 10, 2,
|
||||
60, 52, 44, 36, 28, 20, 12, 4,
|
||||
62, 54, 46, 38, 30, 22, 14, 6
|
||||
]
|
||||
|
||||
# Expansion table for turning 32 bit blocks into 48 bits
|
||||
__expansion_table = [
|
||||
31, 0, 1, 2, 3, 4,
|
||||
3, 4, 5, 6, 7, 8,
|
||||
7, 8, 9, 10, 11, 12,
|
||||
11, 12, 13, 14, 15, 16,
|
||||
15, 16, 17, 18, 19, 20,
|
||||
19, 20, 21, 22, 23, 24,
|
||||
23, 24, 25, 26, 27, 28,
|
||||
27, 28, 29, 30, 31, 0
|
||||
]
|
||||
|
||||
# The (in)famous S-boxes
|
||||
__sbox = [
|
||||
# S1
|
||||
[14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
|
||||
0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
|
||||
4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
|
||||
15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13],
|
||||
|
||||
# S2
|
||||
[15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
|
||||
3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
|
||||
0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
|
||||
13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9],
|
||||
|
||||
# S3
|
||||
[10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
|
||||
13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
|
||||
13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
|
||||
1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12],
|
||||
|
||||
# S4
|
||||
[7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
|
||||
13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
|
||||
10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
|
||||
3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14],
|
||||
|
||||
# S5
|
||||
[2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
|
||||
14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
|
||||
4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
|
||||
11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3],
|
||||
|
||||
# S6
|
||||
[12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
|
||||
10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
|
||||
9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
|
||||
4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13],
|
||||
|
||||
# S7
|
||||
[4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
|
||||
13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
|
||||
1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
|
||||
6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12],
|
||||
|
||||
# S8
|
||||
[13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
|
||||
1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
|
||||
7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
|
||||
2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11],
|
||||
]
|
||||
|
||||
|
||||
# 32-bit permutation function P used on the output of the S-boxes
|
||||
__p = [
|
||||
15, 6, 19, 20, 28, 11,
|
||||
27, 16, 0, 14, 22, 25,
|
||||
4, 17, 30, 9, 1, 7,
|
||||
23,13, 31, 26, 2, 8,
|
||||
18, 12, 29, 5, 21, 10,
|
||||
3, 24
|
||||
]
|
||||
|
||||
# final permutation IP^-1
|
||||
__fp = [
|
||||
39, 7, 47, 15, 55, 23, 63, 31,
|
||||
38, 6, 46, 14, 54, 22, 62, 30,
|
||||
37, 5, 45, 13, 53, 21, 61, 29,
|
||||
36, 4, 44, 12, 52, 20, 60, 28,
|
||||
35, 3, 43, 11, 51, 19, 59, 27,
|
||||
34, 2, 42, 10, 50, 18, 58, 26,
|
||||
33, 1, 41, 9, 49, 17, 57, 25,
|
||||
32, 0, 40, 8, 48, 16, 56, 24
|
||||
]
|
||||
|
||||
# Type of crypting being done
|
||||
ENCRYPT = 0x00
|
||||
DECRYPT = 0x01
|
||||
|
||||
# Initialisation
|
||||
def __init__(self, key, mode=ECB, IV=None, pad=None, padmode=PAD_NORMAL):
|
||||
# Sanity checking of arguments.
|
||||
if len(key) != 8:
|
||||
raise ValueError("Invalid DES key size. Key must be exactly 8 bytes long.")
|
||||
_baseDes.__init__(self, mode, IV, pad, padmode)
|
||||
self.key_size = 8
|
||||
|
||||
self.L = []
|
||||
self.R = []
|
||||
self.Kn = [ [0] * 48 ] * 16 # 16 48-bit keys (K1 - K16)
|
||||
self.final = []
|
||||
|
||||
self.setKey(key)
|
||||
|
||||
def setKey(self, key):
|
||||
"""Will set the crypting key for this object. Must be 8 bytes."""
|
||||
_baseDes.setKey(self, key)
|
||||
self.__create_sub_keys()
|
||||
|
||||
def __String_to_BitList(self, data):
|
||||
"""Turn the string data, into a list of bits (1, 0)'s"""
|
||||
if _pythonMajorVersion < 3:
|
||||
# Turn the strings into integers. Python 3 uses a bytes
|
||||
# class, which already has this behaviour.
|
||||
data = [ord(c) for c in data]
|
||||
l = len(data) * 8
|
||||
result = [0] * l
|
||||
pos = 0
|
||||
for ch in data:
|
||||
i = 7
|
||||
while i >= 0:
|
||||
if ch & (1 << i) != 0:
|
||||
result[pos] = 1
|
||||
else:
|
||||
result[pos] = 0
|
||||
pos += 1
|
||||
i -= 1
|
||||
|
||||
return result
|
||||
|
||||
def __BitList_to_String(self, data):
|
||||
"""Turn the list of bits -> data, into a string"""
|
||||
result = []
|
||||
pos = 0
|
||||
c = 0
|
||||
while pos < len(data):
|
||||
c += data[pos] << (7 - (pos % 8))
|
||||
if (pos % 8) == 7:
|
||||
result.append(c)
|
||||
c = 0
|
||||
pos += 1
|
||||
|
||||
if _pythonMajorVersion < 3:
|
||||
return ''.join([ chr(c) for c in result ])
|
||||
else:
|
||||
return bytes(result)
|
||||
|
||||
def __permutate(self, table, block):
|
||||
"""Permutate this block with the specified table"""
|
||||
return list([block[x] for x in table])
|
||||
|
||||
# Transform the secret key, so that it is ready for data processing
|
||||
# Create the 16 subkeys, K[1] - K[16]
|
||||
def __create_sub_keys(self):
|
||||
"""Create the 16 subkeys K[1] to K[16] from the given key"""
|
||||
key = self.__permutate(des.__pc1, self.__String_to_BitList(self.getKey()))
|
||||
i = 0
|
||||
# Split into Left and Right sections
|
||||
self.L = key[:28]
|
||||
self.R = key[28:]
|
||||
while i < 16:
|
||||
j = 0
|
||||
# Perform circular left shifts
|
||||
while j < des.__left_rotations[i]:
|
||||
self.L.append(self.L[0])
|
||||
del self.L[0]
|
||||
|
||||
self.R.append(self.R[0])
|
||||
del self.R[0]
|
||||
|
||||
j += 1
|
||||
|
||||
# Create one of the 16 subkeys through pc2 permutation
|
||||
self.Kn[i] = self.__permutate(des.__pc2, self.L + self.R)
|
||||
|
||||
i += 1
|
||||
|
||||
# Main part of the encryption algorithm, the number cruncher :)
|
||||
def __des_crypt(self, block, crypt_type):
|
||||
"""Crypt the block of data through DES bit-manipulation"""
|
||||
block = self.__permutate(des.__ip, block)
|
||||
self.L = block[:32]
|
||||
self.R = block[32:]
|
||||
|
||||
# Encryption starts from Kn[1] through to Kn[16]
|
||||
if crypt_type == des.ENCRYPT:
|
||||
iteration = 0
|
||||
iteration_adjustment = 1
|
||||
# Decryption starts from Kn[16] down to Kn[1]
|
||||
else:
|
||||
iteration = 15
|
||||
iteration_adjustment = -1
|
||||
|
||||
i = 0
|
||||
while i < 16:
|
||||
# Make a copy of R[i-1], this will later become L[i]
|
||||
tempR = self.R[:]
|
||||
|
||||
# Permutate R[i - 1] to start creating R[i]
|
||||
self.R = self.__permutate(des.__expansion_table, self.R)
|
||||
|
||||
# Exclusive or R[i - 1] with K[i], create B[1] to B[8] whilst here
|
||||
self.R = list(map(lambda x, y: x ^ y, self.R, self.Kn[iteration]))
|
||||
B = [self.R[:6], self.R[6:12], self.R[12:18], self.R[18:24], self.R[24:30], self.R[30:36], self.R[36:42], self.R[42:]]
|
||||
# Optimization: Replaced below commented code with above
|
||||
#j = 0
|
||||
#B = []
|
||||
#while j < len(self.R):
|
||||
# self.R[j] = self.R[j] ^ self.Kn[iteration][j]
|
||||
# j += 1
|
||||
# if j % 6 == 0:
|
||||
# B.append(self.R[j-6:j])
|
||||
|
||||
# Permutate B[1] to B[8] using the S-Boxes
|
||||
j = 0
|
||||
Bn = [0] * 32
|
||||
pos = 0
|
||||
while j < 8:
|
||||
# Work out the offsets
|
||||
m = (B[j][0] << 1) + B[j][5]
|
||||
n = (B[j][1] << 3) + (B[j][2] << 2) + (B[j][3] << 1) + B[j][4]
|
||||
|
||||
# Find the permutation value
|
||||
v = des.__sbox[j][(m << 4) + n]
|
||||
|
||||
# Turn value into bits, add it to result: Bn
|
||||
Bn[pos] = (v & 8) >> 3
|
||||
Bn[pos + 1] = (v & 4) >> 2
|
||||
Bn[pos + 2] = (v & 2) >> 1
|
||||
Bn[pos + 3] = v & 1
|
||||
|
||||
pos += 4
|
||||
j += 1
|
||||
|
||||
# Permutate the concatination of B[1] to B[8] (Bn)
|
||||
self.R = self.__permutate(des.__p, Bn)
|
||||
|
||||
# Xor with L[i - 1]
|
||||
self.R = list(map(lambda x, y: x ^ y, self.R, self.L))
|
||||
# Optimization: This now replaces the below commented code
|
||||
#j = 0
|
||||
#while j < len(self.R):
|
||||
# self.R[j] = self.R[j] ^ self.L[j]
|
||||
# j += 1
|
||||
|
||||
# L[i] becomes R[i - 1]
|
||||
self.L = tempR
|
||||
|
||||
i += 1
|
||||
iteration += iteration_adjustment
|
||||
|
||||
# Final permutation of R[16]L[16]
|
||||
self.final = self.__permutate(des.__fp, self.R + self.L)
|
||||
return self.final
|
||||
|
||||
|
||||
# Data to be encrypted/decrypted
|
||||
def crypt(self, data, crypt_type):
|
||||
"""Crypt the data in blocks, running it through des_crypt()"""
|
||||
|
||||
# Error check the data
|
||||
if not data:
|
||||
return ''
|
||||
if len(data) % self.block_size != 0:
|
||||
if crypt_type == des.DECRYPT: # Decryption must work on 8 byte blocks
|
||||
raise ValueError("Invalid data length, data must be a multiple of " + str(self.block_size) + " bytes\n.")
|
||||
if not self.getPadding():
|
||||
raise ValueError("Invalid data length, data must be a multiple of " + str(self.block_size) + " bytes\n. Try setting the optional padding character")
|
||||
else:
|
||||
data += (self.block_size - (len(data) % self.block_size)) * self.getPadding()
|
||||
# print "Len of data: %f" % (len(data) / self.block_size)
|
||||
|
||||
if self.getMode() == CBC:
|
||||
if self.getIV():
|
||||
iv = self.__String_to_BitList(self.getIV())
|
||||
else:
|
||||
raise ValueError("For CBC mode, you must supply the Initial Value (IV) for ciphering")
|
||||
|
||||
# Split the data into blocks, crypting each one seperately
|
||||
i = 0
|
||||
dict = {}
|
||||
result = []
|
||||
#cached = 0
|
||||
#lines = 0
|
||||
while i < len(data):
|
||||
# Test code for caching encryption results
|
||||
#lines += 1
|
||||
#if dict.has_key(data[i:i+8]):
|
||||
#print "Cached result for: %s" % data[i:i+8]
|
||||
# cached += 1
|
||||
# result.append(dict[data[i:i+8]])
|
||||
# i += 8
|
||||
# continue
|
||||
|
||||
block = self.__String_to_BitList(data[i:i+8])
|
||||
|
||||
# Xor with IV if using CBC mode
|
||||
if self.getMode() == CBC:
|
||||
if crypt_type == des.ENCRYPT:
|
||||
block = list(map(lambda x, y: x ^ y, block, iv))
|
||||
#j = 0
|
||||
#while j < len(block):
|
||||
# block[j] = block[j] ^ iv[j]
|
||||
# j += 1
|
||||
|
||||
processed_block = self.__des_crypt(block, crypt_type)
|
||||
|
||||
if crypt_type == des.DECRYPT:
|
||||
processed_block = list(map(lambda x, y: x ^ y, processed_block, iv))
|
||||
#j = 0
|
||||
#while j < len(processed_block):
|
||||
# processed_block[j] = processed_block[j] ^ iv[j]
|
||||
# j += 1
|
||||
iv = block
|
||||
else:
|
||||
iv = processed_block
|
||||
else:
|
||||
processed_block = self.__des_crypt(block, crypt_type)
|
||||
|
||||
|
||||
# Add the resulting crypted block to our list
|
||||
#d = self.__BitList_to_String(processed_block)
|
||||
#result.append(d)
|
||||
result.append(self.__BitList_to_String(processed_block))
|
||||
#dict[data[i:i+8]] = d
|
||||
i += 8
|
||||
|
||||
# print "Lines: %d, cached: %d" % (lines, cached)
|
||||
|
||||
# Return the full crypted string
|
||||
if _pythonMajorVersion < 3:
|
||||
return ''.join(result)
|
||||
else:
|
||||
return bytes.fromhex('').join(result)
|
||||
|
||||
def encrypt(self, data, pad=None, padmode=None):
|
||||
"""encrypt(data, [pad], [padmode]) -> bytes
|
||||
|
||||
data : Bytes to be encrypted
|
||||
pad : Optional argument for encryption padding. Must only be one byte
|
||||
padmode : Optional argument for overriding the padding mode.
|
||||
|
||||
The data must be a multiple of 8 bytes and will be encrypted
|
||||
with the already specified key. Data does not have to be a
|
||||
multiple of 8 bytes if the padding character is supplied, or
|
||||
the padmode is set to PAD_PKCS5, as bytes will then added to
|
||||
ensure the be padded data is a multiple of 8 bytes.
|
||||
"""
|
||||
data = self._guardAgainstUnicode(data)
|
||||
if pad is not None:
|
||||
pad = self._guardAgainstUnicode(pad)
|
||||
data = self._padData(data, pad, padmode)
|
||||
return self.crypt(data, des.ENCRYPT)
|
||||
|
||||
def decrypt(self, data, pad=None, padmode=None):
|
||||
"""decrypt(data, [pad], [padmode]) -> bytes
|
||||
|
||||
data : Bytes to be encrypted
|
||||
pad : Optional argument for decryption padding. Must only be one byte
|
||||
padmode : Optional argument for overriding the padding mode.
|
||||
|
||||
The data must be a multiple of 8 bytes and will be decrypted
|
||||
with the already specified key. In PAD_NORMAL mode, if the
|
||||
optional padding character is supplied, then the un-encrypted
|
||||
data will have the padding characters removed from the end of
|
||||
the bytes. This pad removal only occurs on the last 8 bytes of
|
||||
the data (last data block). In PAD_PKCS5 mode, the special
|
||||
padding end markers will be removed from the data after decrypting.
|
||||
"""
|
||||
data = self._guardAgainstUnicode(data)
|
||||
if pad is not None:
|
||||
pad = self._guardAgainstUnicode(pad)
|
||||
data = self.crypt(data, des.DECRYPT)
|
||||
return self._unpadData(data, pad, padmode)
|
||||
|
||||
|
||||
|
||||
#############################################################################
|
||||
# Triple DES #
|
||||
#############################################################################
|
||||
class triple_des(_baseDes):
|
||||
"""Triple DES encryption/decrytpion class
|
||||
|
||||
This algorithm uses the DES-EDE3 (when a 24 byte key is supplied) or
|
||||
the DES-EDE2 (when a 16 byte key is supplied) encryption methods.
|
||||
Supports ECB (Electronic Code Book) and CBC (Cypher Block Chaining) modes.
|
||||
|
||||
pyDes.des(key, [mode], [IV])
|
||||
|
||||
key -> Bytes containing the encryption key, must be either 16 or
|
||||
24 bytes long
|
||||
mode -> Optional argument for encryption type, can be either pyDes.ECB
|
||||
(Electronic Code Book), pyDes.CBC (Cypher Block Chaining)
|
||||
IV -> Optional Initial Value bytes, must be supplied if using CBC mode.
|
||||
Must be 8 bytes in length.
|
||||
pad -> Optional argument, set the pad character (PAD_NORMAL) to use
|
||||
during all encrypt/decrpt operations done with this instance.
|
||||
padmode -> Optional argument, set the padding mode (PAD_NORMAL or
|
||||
PAD_PKCS5) to use during all encrypt/decrpt operations done
|
||||
with this instance.
|
||||
"""
|
||||
def __init__(self, key, mode=ECB, IV=None, pad=None, padmode=PAD_NORMAL):
|
||||
_baseDes.__init__(self, mode, IV, pad, padmode)
|
||||
self.setKey(key)
|
||||
|
||||
def setKey(self, key):
|
||||
"""Will set the crypting key for this object. Either 16 or 24 bytes long."""
|
||||
self.key_size = 24 # Use DES-EDE3 mode
|
||||
if len(key) != self.key_size:
|
||||
if len(key) == 16: # Use DES-EDE2 mode
|
||||
self.key_size = 16
|
||||
else:
|
||||
raise ValueError("Invalid triple DES key size. Key must be either 16 or 24 bytes long")
|
||||
if self.getMode() == CBC:
|
||||
if not self.getIV():
|
||||
# Use the first 8 bytes of the key
|
||||
self._iv = key[:self.block_size]
|
||||
if len(self.getIV()) != self.block_size:
|
||||
raise ValueError("Invalid IV, must be 8 bytes in length")
|
||||
self.__key1 = des(key[:8], self._mode, self._iv,
|
||||
self._padding, self._padmode)
|
||||
self.__key2 = des(key[8:16], self._mode, self._iv,
|
||||
self._padding, self._padmode)
|
||||
if self.key_size == 16:
|
||||
self.__key3 = self.__key1
|
||||
else:
|
||||
self.__key3 = des(key[16:], self._mode, self._iv,
|
||||
self._padding, self._padmode)
|
||||
_baseDes.setKey(self, key)
|
||||
|
||||
# Override setter methods to work on all 3 keys.
|
||||
|
||||
def setMode(self, mode):
|
||||
"""Sets the type of crypting mode, pyDes.ECB or pyDes.CBC"""
|
||||
_baseDes.setMode(self, mode)
|
||||
for key in (self.__key1, self.__key2, self.__key3):
|
||||
key.setMode(mode)
|
||||
|
||||
def setPadding(self, pad):
|
||||
"""setPadding() -> bytes of length 1. Padding character."""
|
||||
_baseDes.setPadding(self, pad)
|
||||
for key in (self.__key1, self.__key2, self.__key3):
|
||||
key.setPadding(pad)
|
||||
|
||||
def setPadMode(self, mode):
|
||||
"""Sets the type of padding mode, pyDes.PAD_NORMAL or pyDes.PAD_PKCS5"""
|
||||
_baseDes.setPadMode(self, mode)
|
||||
for key in (self.__key1, self.__key2, self.__key3):
|
||||
key.setPadMode(mode)
|
||||
|
||||
def setIV(self, IV):
|
||||
"""Will set the Initial Value, used in conjunction with CBC mode"""
|
||||
_baseDes.setIV(self, IV)
|
||||
for key in (self.__key1, self.__key2, self.__key3):
|
||||
key.setIV(IV)
|
||||
|
||||
def encrypt(self, data, pad=None, padmode=None):
|
||||
"""encrypt(data, [pad], [padmode]) -> bytes
|
||||
|
||||
data : bytes to be encrypted
|
||||
pad : Optional argument for encryption padding. Must only be one byte
|
||||
padmode : Optional argument for overriding the padding mode.
|
||||
|
||||
The data must be a multiple of 8 bytes and will be encrypted
|
||||
with the already specified key. Data does not have to be a
|
||||
multiple of 8 bytes if the padding character is supplied, or
|
||||
the padmode is set to PAD_PKCS5, as bytes will then added to
|
||||
ensure the be padded data is a multiple of 8 bytes.
|
||||
"""
|
||||
ENCRYPT = des.ENCRYPT
|
||||
DECRYPT = des.DECRYPT
|
||||
data = self._guardAgainstUnicode(data)
|
||||
if pad is not None:
|
||||
pad = self._guardAgainstUnicode(pad)
|
||||
# Pad the data accordingly.
|
||||
data = self._padData(data, pad, padmode)
|
||||
if self.getMode() == CBC:
|
||||
self.__key1.setIV(self.getIV())
|
||||
self.__key2.setIV(self.getIV())
|
||||
self.__key3.setIV(self.getIV())
|
||||
i = 0
|
||||
result = []
|
||||
while i < len(data):
|
||||
block = self.__key1.crypt(data[i:i+8], ENCRYPT)
|
||||
block = self.__key2.crypt(block, DECRYPT)
|
||||
block = self.__key3.crypt(block, ENCRYPT)
|
||||
self.__key1.setIV(block)
|
||||
self.__key2.setIV(block)
|
||||
self.__key3.setIV(block)
|
||||
result.append(block)
|
||||
i += 8
|
||||
if _pythonMajorVersion < 3:
|
||||
return ''.join(result)
|
||||
else:
|
||||
return bytes.fromhex('').join(result)
|
||||
else:
|
||||
data = self.__key1.crypt(data, ENCRYPT)
|
||||
data = self.__key2.crypt(data, DECRYPT)
|
||||
return self.__key3.crypt(data, ENCRYPT)
|
||||
|
||||
def decrypt(self, data, pad=None, padmode=None):
|
||||
"""decrypt(data, [pad], [padmode]) -> bytes
|
||||
|
||||
data : bytes to be encrypted
|
||||
pad : Optional argument for decryption padding. Must only be one byte
|
||||
padmode : Optional argument for overriding the padding mode.
|
||||
|
||||
The data must be a multiple of 8 bytes and will be decrypted
|
||||
with the already specified key. In PAD_NORMAL mode, if the
|
||||
optional padding character is supplied, then the un-encrypted
|
||||
data will have the padding characters removed from the end of
|
||||
the bytes. This pad removal only occurs on the last 8 bytes of
|
||||
the data (last data block). In PAD_PKCS5 mode, the special
|
||||
padding end markers will be removed from the data after
|
||||
decrypting, no pad character is required for PAD_PKCS5.
|
||||
"""
|
||||
ENCRYPT = des.ENCRYPT
|
||||
DECRYPT = des.DECRYPT
|
||||
data = self._guardAgainstUnicode(data)
|
||||
if pad is not None:
|
||||
pad = self._guardAgainstUnicode(pad)
|
||||
if self.getMode() == CBC:
|
||||
self.__key1.setIV(self.getIV())
|
||||
self.__key2.setIV(self.getIV())
|
||||
self.__key3.setIV(self.getIV())
|
||||
i = 0
|
||||
result = []
|
||||
while i < len(data):
|
||||
iv = data[i:i+8]
|
||||
block = self.__key3.crypt(iv, DECRYPT)
|
||||
block = self.__key2.crypt(block, ENCRYPT)
|
||||
block = self.__key1.crypt(block, DECRYPT)
|
||||
self.__key1.setIV(iv)
|
||||
self.__key2.setIV(iv)
|
||||
self.__key3.setIV(iv)
|
||||
result.append(block)
|
||||
i += 8
|
||||
if _pythonMajorVersion < 3:
|
||||
data = ''.join(result)
|
||||
else:
|
||||
data = bytes.fromhex('').join(result)
|
||||
else:
|
||||
data = self.__key3.crypt(data, DECRYPT)
|
||||
data = self.__key2.crypt(data, ENCRYPT)
|
||||
data = self.__key1.crypt(data, DECRYPT)
|
||||
return self._unpadData(data, pad, padmode)
|
||||
22
lib/sambatools/python3/smb/utils/rc4.py
Normal file
22
lib/sambatools/python3/smb/utils/rc4.py
Normal file
@@ -0,0 +1,22 @@
|
||||
|
||||
def RC4_encrypt(key, data):
|
||||
S = list(range(256))
|
||||
j = 0
|
||||
|
||||
key_len = len(key)
|
||||
for i in list(range(256)):
|
||||
j = (j + S[i] + key[i % key_len]) % 256
|
||||
S[i], S[j] = S[j], S[i]
|
||||
|
||||
j = 0
|
||||
y = 0
|
||||
out = []
|
||||
|
||||
for char in data:
|
||||
j = (j + 1) % 256
|
||||
y = (y + S[j]) % 256
|
||||
S[j], S[y] = S[y], S[j]
|
||||
|
||||
out.append(char ^ S[(S[j] + S[y]) % 256])
|
||||
|
||||
return bytes(out)
|
||||
109
lib/sambatools/python3/smb/utils/sha256.py
Normal file
109
lib/sambatools/python3/smb/utils/sha256.py
Normal file
@@ -0,0 +1,109 @@
|
||||
__author__ = 'Thomas Dixon'
|
||||
__license__ = 'MIT'
|
||||
|
||||
import copy, struct, sys
|
||||
|
||||
digest_size = 32
|
||||
blocksize = 1
|
||||
|
||||
def new(m=None):
|
||||
return sha256(m)
|
||||
|
||||
class sha256(object):
|
||||
_k = (0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
|
||||
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
|
||||
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
|
||||
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
|
||||
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
|
||||
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
|
||||
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
|
||||
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
|
||||
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
|
||||
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
|
||||
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
|
||||
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
|
||||
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
|
||||
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
|
||||
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
|
||||
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2)
|
||||
_h = (0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
|
||||
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19)
|
||||
_output_size = 8
|
||||
|
||||
blocksize = 1
|
||||
block_size = 64
|
||||
digest_size = 32
|
||||
|
||||
def __init__(self, m=None):
|
||||
self._buffer = ''
|
||||
self._counter = 0
|
||||
|
||||
if m is not None:
|
||||
if type(m) is not str:
|
||||
raise TypeError('%s() argument 1 must be string, not %s' % (self.__class__.__name__, type(m).__name__))
|
||||
self.update(m)
|
||||
|
||||
def _rotr(self, x, y):
|
||||
return ((x >> y) | (x << (32-y))) & 0xFFFFFFFF
|
||||
|
||||
def _sha256_process(self, c):
|
||||
w = [0]*64
|
||||
w[0:15] = struct.unpack('!16L', c)
|
||||
|
||||
for i in range(16, 64):
|
||||
s0 = self._rotr(w[i-15], 7) ^ self._rotr(w[i-15], 18) ^ (w[i-15] >> 3)
|
||||
s1 = self._rotr(w[i-2], 17) ^ self._rotr(w[i-2], 19) ^ (w[i-2] >> 10)
|
||||
w[i] = (w[i-16] + s0 + w[i-7] + s1) & 0xFFFFFFFF
|
||||
|
||||
a,b,c,d,e,f,g,h = self._h
|
||||
|
||||
for i in range(64):
|
||||
s0 = self._rotr(a, 2) ^ self._rotr(a, 13) ^ self._rotr(a, 22)
|
||||
maj = (a & b) ^ (a & c) ^ (b & c)
|
||||
t2 = s0 + maj
|
||||
s1 = self._rotr(e, 6) ^ self._rotr(e, 11) ^ self._rotr(e, 25)
|
||||
ch = (e & f) ^ ((~e) & g)
|
||||
t1 = h + s1 + ch + self._k[i] + w[i]
|
||||
|
||||
h = g
|
||||
g = f
|
||||
f = e
|
||||
e = (d + t1) & 0xFFFFFFFF
|
||||
d = c
|
||||
c = b
|
||||
b = a
|
||||
a = (t1 + t2) & 0xFFFFFFFF
|
||||
|
||||
self._h = [(x+y) & 0xFFFFFFFF for x,y in zip(self._h, [a,b,c,d,e,f,g,h])]
|
||||
|
||||
def update(self, m):
|
||||
if not m:
|
||||
return
|
||||
if type(m) is not str:
|
||||
raise TypeError('%s() argument 1 must be string, not %s' % (sys._getframe().f_code.co_name, type(m).__name__))
|
||||
|
||||
self._buffer += m
|
||||
self._counter += len(m)
|
||||
|
||||
while len(self._buffer) >= 64:
|
||||
self._sha256_process(self._buffer[:64])
|
||||
self._buffer = self._buffer[64:]
|
||||
|
||||
def digest(self):
|
||||
mdi = self._counter & 0x3F
|
||||
length = struct.pack('!Q', self._counter<<3)
|
||||
|
||||
if mdi < 56:
|
||||
padlen = 55-mdi
|
||||
else:
|
||||
padlen = 119-mdi
|
||||
|
||||
r = self.copy()
|
||||
r.update('\x80'+('\x00'*padlen)+length)
|
||||
return ''.join([struct.pack('!L', i) for i in r._h[:self._output_size]])
|
||||
|
||||
def hexdigest(self):
|
||||
return self.digest().encode('hex')
|
||||
|
||||
def copy(self):
|
||||
return copy.deepcopy(self)
|
||||
Reference in New Issue
Block a user