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# This file is part of 'NTLM Authorization Proxy Server'
# Copyright 2001 Dmitry A. Rozmanov <dima@xenon.spb.ru>
#
# NTLM APS 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; either version 2 of the License, or
# (at your option) any later version.
#
# NTLM APS 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 the sofware; see the file COPYING. If not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
#
# MD4 validation data
md4_test= [
('', 0x31d6cfe0d16ae931b73c59d7e0c089c0L),
("a", 0xbde52cb31de33e46245e05fbdbd6fb24L),
("abc", 0xa448017aaf21d8525fc10ae87aa6729dL),
("message digest", 0xd9130a8164549fe818874806e1c7014bL),
("abcdefghijklmnopqrstuvwxyz", 0xd79e1c308aa5bbcdeea8ed63df412da9L),
("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
0x043f8582f241db351ce627e153e7f0e4L),
("12345678901234567890123456789012345678901234567890123456789012345678901234567890",
0xe33b4ddc9c38f2199c3e7b164fcc0536L),
]
#------------------------------------------------------------------------------
from U32 import U32
class MD4:
A = None
B = None
C = None
D = None
count, len1, len2 = None, None, None
buf = []
#-----------------------------------------------------
def __init__(self):
self.A = U32(0x67452301L)
self.B = U32(0xefcdab89L)
self.C = U32(0x98badcfeL)
self.D = U32(0x10325476L)
self.count, self.len1, self.len2 = U32(0L), U32(0L), U32(0L)
self.buf = [0x00] * 64
#-----------------------------------------------------
def __repr__(self):
r = 'A = %s, \nB = %s, \nC = %s, \nD = %s.\n' % (self.A.__repr__(), self.B.__repr__(), self.C.__repr__(), self.D.__repr__())
r = r + 'count = %s, \nlen1 = %s, \nlen2 = %s.\n' % (self.count.__repr__(), self.len1.__repr__(), self.len2.__repr__())
for i in range(4):
for j in range(16):
r = r + '%4s ' % hex(self.buf[i+j])
r = r + '\n'
return r
#-----------------------------------------------------
def make_copy(self):
dest = new()
dest.len1 = self.len1
dest.len2 = self.len2
dest.A = self.A
dest.B = self.B
dest.C = self.C
dest.D = self.D
dest.count = self.count
for i in range(self.count):
dest.buf[i] = self.buf[i]
return dest
#-----------------------------------------------------
def update(self, str):
buf = []
for i in str: buf.append(ord(i))
ilen = U32(len(buf))
#print (ilen)
# --NON ASCII COMMENT ELIDED--
if (long(self.len1 + (ilen << 3)) < long(self.len1)):
self.len2 = self.len2 + U32(1)
self.len1 = self.len1 + (ilen << 3)
self.len2 = self.len2 + (ilen >> 29)
# print int(self.len1), int(self.len2)
#print (self.len1), (self.len2)
L = U32(0)
bufpos = 0
while (long(ilen) > 0):
if (64 - long(self.count)) < long(ilen): L = U32(64 - long(self.count))
else: L = ilen
for i in range(int(L)): self.buf[i + int(self.count)] = buf[i + bufpos]
self.count = self.count + L
ilen = ilen - L
bufpos = bufpos + int(L)
#print self.count, L, ilen
if (long(self.count) == 64L):
self.count = U32(0L)
X = []
i = 0
for j in range(16):
X.append(U32(self.buf[i]) + (U32(self.buf[i+1]) << 8) + \
(U32(self.buf[i+2]) << 16) + (U32(self.buf[i+3]) << 24))
i = i + 4
A = self.A
B = self.B
C = self.C
D = self.D
A = f1(A,B,C,D, 0, 3, X)
D = f1(D,A,B,C, 1, 7, X)
C = f1(C,D,A,B, 2,11, X)
B = f1(B,C,D,A, 3,19, X)
A = f1(A,B,C,D, 4, 3, X)
D = f1(D,A,B,C, 5, 7, X)
C = f1(C,D,A,B, 6,11, X)
B = f1(B,C,D,A, 7,19, X)
A = f1(A,B,C,D, 8, 3, X)
D = f1(D,A,B,C, 9, 7, X)
C = f1(C,D,A,B,10,11, X)
B = f1(B,C,D,A,11,19, X)
A = f1(A,B,C,D,12, 3, X)
D = f1(D,A,B,C,13, 7, X)
C = f1(C,D,A,B,14,11, X)
B = f1(B,C,D,A,15,19, X)
A = f2(A,B,C,D, 0, 3, X)
D = f2(D,A,B,C, 4, 5, X)
C = f2(C,D,A,B, 8, 9, X)
B = f2(B,C,D,A,12,13, X)
A = f2(A,B,C,D, 1, 3, X)
D = f2(D,A,B,C, 5, 5, X)
C = f2(C,D,A,B, 9, 9, X)
B = f2(B,C,D,A,13,13, X)
A = f2(A,B,C,D, 2, 3, X)
D = f2(D,A,B,C, 6, 5, X)
C = f2(C,D,A,B,10, 9, X)
B = f2(B,C,D,A,14,13, X)
A = f2(A,B,C,D, 3, 3, X)
D = f2(D,A,B,C, 7, 5, X)
C = f2(C,D,A,B,11, 9, X)
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
#print self
#-----------------------------------------------------
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 <= long(self.count)): padlen = U32(56 - long(self.count) + 64)
else: padlen = U32(56 - long(self.count))
#print int(padlen)
temp.update(int_array2str(padding[:int(padlen)]))
#print temp
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))
#print temp
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)
#------------------------------------------------------------------------------
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(0x5a827999L), s)
def f3(a, b, c, d, k, s, X): return ROL(a + H(b, c, d) + X[k] + U32(0x6ed9eba1L), s)
def int_array2str(array):
str = ''
for i in array:
str = str + chr(i)
return str
new = MD4
|
