mirror of
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move nearly everything into /src to make git.io/gam cleaner w/o a readme tree
This commit is contained in:
Jay Lee
1620
src/passlib/utils/__init__.py
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1620
src/passlib/utils/__init__.py
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File diff suppressed because it is too large
Load Diff
168
src/passlib/utils/_blowfish/__init__.py
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168
src/passlib/utils/_blowfish/__init__.py
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|
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"""passlib.utils._blowfish - pure-python eks-blowfish implementation for bcrypt
|
||||
|
||||
This is a pure-python implementation of the EKS-Blowfish algorithm described by
|
||||
Provos and Mazieres in `A Future-Adaptable Password Scheme
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||||
<http://www.openbsd.org/papers/bcrypt-paper.ps>`_.
|
||||
|
||||
This package contains two submodules:
|
||||
|
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* ``_blowfish/base.py`` contains a class implementing the eks-blowfish algorithm
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using easy-to-examine code.
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||||
|
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* ``_blowfish/unrolled.py`` contains a subclass which replaces some methods
|
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of the original class with sped-up versions, mainly using unrolled loops
|
||||
and local variables. this is the class which is actually used by
|
||||
Passlib to perform BCrypt in pure python.
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||||
|
||||
This module is auto-generated by a script, ``_blowfish/_gen_files.py``.
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||||
|
||||
Status
|
||||
------
|
||||
This implementation is usable, but is an order of magnitude too slow to be
|
||||
usable with real security. For "ok" security, BCrypt hashes should have at
|
||||
least 2**11 rounds (as of 2011). Assuming a desired response time <= 100ms,
|
||||
this means a BCrypt implementation should get at least 20 rounds/ms in order
|
||||
to be both usable *and* secure. On a 2 ghz cpu, this implementation gets
|
||||
roughly 0.09 rounds/ms under CPython (220x too slow), and 1.9 rounds/ms
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||||
under PyPy (10x too slow).
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||||
|
||||
History
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||||
-------
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||||
While subsequently modified considerly for Passlib, this code was originally
|
||||
based on `jBcrypt 0.2 <http://www.mindrot.org/projects/jBCrypt/>`_, which was
|
||||
released under the BSD license::
|
||||
|
||||
Copyright (c) 2006 Damien Miller <djm@mindrot.org>
|
||||
|
||||
Permission to use, copy, modify, and distribute this software for any
|
||||
purpose with or without fee is hereby granted, provided that the above
|
||||
copyright notice and this permission notice appear in all copies.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""
|
||||
#=============================================================================
|
||||
# imports
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||||
#=============================================================================
|
||||
# core
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||||
from itertools import chain
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import struct
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||||
# pkg
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||||
from passlib.utils import bcrypt64, getrandbytes, rng
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||||
from passlib.utils.compat import b, bytes, BytesIO, unicode, u, native_string_types
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||||
from passlib.utils._blowfish.unrolled import BlowfishEngine
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# local
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||||
__all__ = [
|
||||
'BlowfishEngine',
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||||
'raw_bcrypt',
|
||||
]
|
||||
|
||||
#=============================================================================
|
||||
# bcrypt constants
|
||||
#=============================================================================
|
||||
|
||||
# bcrypt constant data "OrpheanBeholderScryDoubt" as 6 integers
|
||||
BCRYPT_CDATA = [
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0x4f727068, 0x65616e42, 0x65686f6c,
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||||
0x64657253, 0x63727944, 0x6f756274
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||||
]
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||||
|
||||
# struct used to encode ciphertext as digest (last output byte discarded)
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digest_struct = struct.Struct(">6I")
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|
||||
#=============================================================================
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||||
# base bcrypt helper
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#
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# interface designed only for use by passlib.handlers.bcrypt:BCrypt
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# probably not suitable for other purposes
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#=============================================================================
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||||
BNULL = b('\x00')
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|
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def raw_bcrypt(password, ident, salt, log_rounds):
|
||||
"""perform central password hashing step in bcrypt scheme.
|
||||
|
||||
:param password: the password to hash
|
||||
:param ident: identifier w/ minor version (e.g. 2, 2a)
|
||||
:param salt: the binary salt to use (encoded in bcrypt-base64)
|
||||
:param rounds: the log2 of the number of rounds (as int)
|
||||
:returns: bcrypt-base64 encoded checksum
|
||||
"""
|
||||
#===================================================================
|
||||
# parse inputs
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||||
#===================================================================
|
||||
|
||||
# parse ident
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||||
assert isinstance(ident, native_string_types)
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||||
add_null_padding = True
|
||||
if ident == u('2a') or ident == u('2y') or ident == u('2b'):
|
||||
pass
|
||||
elif ident == u('2'):
|
||||
add_null_padding = False
|
||||
elif ident == u('2x'):
|
||||
raise ValueError("crypt_blowfish's buggy '2x' hashes are not "
|
||||
"currently supported")
|
||||
else:
|
||||
raise ValueError("unknown ident: %r" % (ident,))
|
||||
|
||||
# decode & validate salt
|
||||
assert isinstance(salt, bytes)
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salt = bcrypt64.decode_bytes(salt)
|
||||
if len(salt) < 16:
|
||||
raise ValueError("Missing salt bytes")
|
||||
elif len(salt) > 16:
|
||||
salt = salt[:16]
|
||||
|
||||
# prepare password
|
||||
assert isinstance(password, bytes)
|
||||
if add_null_padding:
|
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password += BNULL
|
||||
|
||||
# validate rounds
|
||||
if log_rounds < 4 or log_rounds > 31:
|
||||
raise ValueError("Bad number of rounds")
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||||
|
||||
#===================================================================
|
||||
#
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||||
# run EKS-Blowfish algorithm
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||||
#
|
||||
# This uses the "enhanced key schedule" step described by
|
||||
# Provos and Mazieres in "A Future-Adaptable Password Scheme"
|
||||
# http://www.openbsd.org/papers/bcrypt-paper.ps
|
||||
#
|
||||
#===================================================================
|
||||
|
||||
engine = BlowfishEngine()
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||||
|
||||
# convert password & salt into list of 18 32-bit integers (72 bytes total).
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pass_words = engine.key_to_words(password)
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||||
salt_words = engine.key_to_words(salt)
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||||
|
||||
# truncate salt_words to original 16 byte salt, or loop won't wrap
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# correctly when passed to .eks_salted_expand()
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salt_words16 = salt_words[:4]
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||||
# do EKS key schedule setup
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engine.eks_salted_expand(pass_words, salt_words16)
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|
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# apply password & salt keys to key schedule a bunch more times.
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rounds = 1<<log_rounds
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engine.eks_repeated_expand(pass_words, salt_words, rounds)
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||||
|
||||
# encipher constant data, and encode to bytes as digest.
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||||
data = list(BCRYPT_CDATA)
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||||
i = 0
|
||||
while i < 6:
|
||||
data[i], data[i+1] = engine.repeat_encipher(data[i], data[i+1], 64)
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||||
i += 2
|
||||
raw = digest_struct.pack(*data)[:-1]
|
||||
return bcrypt64.encode_bytes(raw)
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
204
src/passlib/utils/_blowfish/_gen_files.py
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204
src/passlib/utils/_blowfish/_gen_files.py
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|
||||
"""passlib.utils._blowfish._gen_files - meta script that generates unrolled.py"""
|
||||
#=============================================================================
|
||||
# imports
|
||||
#=============================================================================
|
||||
# core
|
||||
import os
|
||||
import textwrap
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||||
# pkg
|
||||
from passlib.utils.compat import irange
|
||||
# local
|
||||
|
||||
#=============================================================================
|
||||
# helpers
|
||||
#=============================================================================
|
||||
def varlist(name, count):
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||||
return ", ".join(name + str(x) for x in irange(count))
|
||||
|
||||
|
||||
def indent_block(block, padding):
|
||||
"""ident block of text"""
|
||||
lines = block.split("\n")
|
||||
return "\n".join(
|
||||
padding + line if line else ""
|
||||
for line in lines
|
||||
)
|
||||
|
||||
BFSTR = """\
|
||||
((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff)
|
||||
""".strip()
|
||||
|
||||
def render_encipher(write, indent=0):
|
||||
for i in irange(0, 15, 2):
|
||||
write(indent, """\
|
||||
# Feistel substitution on left word (round %(i)d)
|
||||
r ^= %(left)s ^ p%(i1)d
|
||||
|
||||
# Feistel substitution on right word (round %(i1)d)
|
||||
l ^= %(right)s ^ p%(i2)d
|
||||
""", i=i, i1=i+1, i2=i+2,
|
||||
left=BFSTR, right=BFSTR.replace("l","r"),
|
||||
)
|
||||
|
||||
def write_encipher_function(write, indent=0):
|
||||
write(indent, """\
|
||||
def encipher(self, l, r):
|
||||
\"""blowfish encipher a single 64-bit block encoded as two 32-bit ints\"""
|
||||
|
||||
(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9,
|
||||
p10, p11, p12, p13, p14, p15, p16, p17) = self.P
|
||||
S0, S1, S2, S3 = self.S
|
||||
|
||||
l ^= p0
|
||||
|
||||
""")
|
||||
render_encipher(write, indent+1)
|
||||
|
||||
write(indent+1, """\
|
||||
|
||||
return r ^ p17, l
|
||||
|
||||
""")
|
||||
|
||||
def write_expand_function(write, indent=0):
|
||||
write(indent, """\
|
||||
def expand(self, key_words):
|
||||
\"""unrolled version of blowfish key expansion\"""
|
||||
##assert len(key_words) >= 18, "size of key_words must be >= 18"
|
||||
|
||||
P, S = self.P, self.S
|
||||
S0, S1, S2, S3 = S
|
||||
|
||||
#=============================================================
|
||||
# integrate key
|
||||
#=============================================================
|
||||
""")
|
||||
for i in irange(18):
|
||||
write(indent+1, """\
|
||||
p%(i)d = P[%(i)d] ^ key_words[%(i)d]
|
||||
""", i=i)
|
||||
write(indent+1, """\
|
||||
|
||||
#=============================================================
|
||||
# update P
|
||||
#=============================================================
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[0] and P[1]
|
||||
#------------------------------------------------
|
||||
l, r = p0, 0
|
||||
|
||||
""")
|
||||
|
||||
render_encipher(write, indent+1)
|
||||
|
||||
write(indent+1, """\
|
||||
|
||||
p0, p1 = l, r = r ^ p17, l
|
||||
|
||||
""")
|
||||
|
||||
for i in irange(2, 18, 2):
|
||||
write(indent+1, """\
|
||||
#------------------------------------------------
|
||||
# update P[%(i)d] and P[%(i1)d]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
""", i=i, i1=i+1)
|
||||
|
||||
render_encipher(write, indent+1)
|
||||
|
||||
write(indent+1, """\
|
||||
p%(i)d, p%(i1)d = l, r = r ^ p17, l
|
||||
|
||||
""", i=i, i1=i+1)
|
||||
|
||||
write(indent+1, """\
|
||||
|
||||
#------------------------------------------------
|
||||
# save changes to original P array
|
||||
#------------------------------------------------
|
||||
P[:] = (p0, p1, p2, p3, p4, p5, p6, p7, p8, p9,
|
||||
p10, p11, p12, p13, p14, p15, p16, p17)
|
||||
|
||||
#=============================================================
|
||||
# update S
|
||||
#=============================================================
|
||||
|
||||
for box in S:
|
||||
j = 0
|
||||
while j < 256:
|
||||
l ^= p0
|
||||
|
||||
""")
|
||||
|
||||
render_encipher(write, indent+3)
|
||||
|
||||
write(indent+3, """\
|
||||
|
||||
box[j], box[j+1] = l, r = r ^ p17, l
|
||||
j += 2
|
||||
""")
|
||||
|
||||
#=============================================================================
|
||||
# main
|
||||
#=============================================================================
|
||||
|
||||
def main():
|
||||
target = os.path.join(os.path.dirname(__file__), "unrolled.py")
|
||||
fh = file(target, "w")
|
||||
|
||||
def write(indent, msg, **kwds):
|
||||
literal = kwds.pop("literal", False)
|
||||
if kwds:
|
||||
msg %= kwds
|
||||
if not literal:
|
||||
msg = textwrap.dedent(msg.rstrip(" "))
|
||||
if indent:
|
||||
msg = indent_block(msg, " " * (indent*4))
|
||||
fh.write(msg)
|
||||
|
||||
write(0, """\
|
||||
\"""passlib.utils._blowfish.unrolled - unrolled loop implementation of bcrypt,
|
||||
autogenerated by _gen_files.py
|
||||
|
||||
currently this override the encipher() and expand() methods
|
||||
with optimized versions, and leaves the other base.py methods alone.
|
||||
\"""
|
||||
#=================================================================
|
||||
# imports
|
||||
#=================================================================
|
||||
# pkg
|
||||
from passlib.utils._blowfish.base import BlowfishEngine as _BlowfishEngine
|
||||
# local
|
||||
__all__ = [
|
||||
"BlowfishEngine",
|
||||
]
|
||||
#=================================================================
|
||||
#
|
||||
#=================================================================
|
||||
class BlowfishEngine(_BlowfishEngine):
|
||||
|
||||
""")
|
||||
|
||||
write_encipher_function(write, indent=1)
|
||||
write_expand_function(write, indent=1)
|
||||
|
||||
write(0, """\
|
||||
#=================================================================
|
||||
# eoc
|
||||
#=================================================================
|
||||
|
||||
#=================================================================
|
||||
# eof
|
||||
#=================================================================
|
||||
""")
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
442
src/passlib/utils/_blowfish/base.py
Normal file
442
src/passlib/utils/_blowfish/base.py
Normal file
@@ -0,0 +1,442 @@
|
||||
"""passlib.utils._blowfish.base - unoptimized pure-python blowfish engine"""
|
||||
#=============================================================================
|
||||
# imports
|
||||
#=============================================================================
|
||||
# core
|
||||
import struct
|
||||
# pkg
|
||||
from passlib.utils.compat import bytes
|
||||
from passlib.utils import repeat_string
|
||||
# local
|
||||
__all__ = [
|
||||
"BlowfishEngine",
|
||||
]
|
||||
|
||||
#=============================================================================
|
||||
# blowfish constants
|
||||
#=============================================================================
|
||||
BLOWFISH_P = BLOWFISH_S = None
|
||||
|
||||
def _init_constants():
|
||||
global BLOWFISH_P, BLOWFISH_S
|
||||
|
||||
# NOTE: blowfish's spec states these numbers are the hex representation
|
||||
# of the fractional portion of PI, in order.
|
||||
|
||||
# Initial contents of key schedule - 18 integers
|
||||
BLOWFISH_P = [
|
||||
0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
|
||||
0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
|
||||
0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
|
||||
0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
|
||||
0x9216d5d9, 0x8979fb1b,
|
||||
]
|
||||
|
||||
# all 4 blowfish S boxes in one array - 256 integers per S box
|
||||
BLOWFISH_S = [
|
||||
# sbox 1
|
||||
[
|
||||
0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
|
||||
0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
|
||||
0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
|
||||
0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
|
||||
0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
|
||||
0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
|
||||
0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
|
||||
0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
|
||||
0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
|
||||
0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
|
||||
0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
|
||||
0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
|
||||
0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
|
||||
0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
|
||||
0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
|
||||
0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
|
||||
0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
|
||||
0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
|
||||
0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
|
||||
0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
|
||||
0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
|
||||
0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
|
||||
0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
|
||||
0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
|
||||
0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
|
||||
0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
|
||||
0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
|
||||
0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
|
||||
0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
|
||||
0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
|
||||
0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
|
||||
0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
|
||||
0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
|
||||
0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
|
||||
0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
|
||||
0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
|
||||
0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
|
||||
0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
|
||||
0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
|
||||
0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
|
||||
0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
|
||||
0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
|
||||
0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
|
||||
0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
|
||||
0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
|
||||
0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
|
||||
0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
|
||||
0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
|
||||
0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
|
||||
0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
|
||||
0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
|
||||
0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
|
||||
0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
|
||||
0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
|
||||
0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
|
||||
0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
|
||||
0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
|
||||
0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
|
||||
0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
|
||||
0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
|
||||
0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
|
||||
0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
|
||||
0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
|
||||
0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
|
||||
],
|
||||
# sbox 2
|
||||
[
|
||||
0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
|
||||
0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
|
||||
0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
|
||||
0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
|
||||
0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
|
||||
0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
|
||||
0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
|
||||
0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
|
||||
0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
|
||||
0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
|
||||
0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
|
||||
0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
|
||||
0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
|
||||
0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
|
||||
0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
|
||||
0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
|
||||
0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
|
||||
0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
|
||||
0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
|
||||
0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
|
||||
0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
|
||||
0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
|
||||
0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
|
||||
0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
|
||||
0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
|
||||
0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
|
||||
0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
|
||||
0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
|
||||
0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
|
||||
0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
|
||||
0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
|
||||
0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
|
||||
0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
|
||||
0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
|
||||
0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
|
||||
0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
|
||||
0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
|
||||
0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
|
||||
0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
|
||||
0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
|
||||
0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
|
||||
0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
|
||||
0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
|
||||
0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
|
||||
0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
|
||||
0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
|
||||
0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
|
||||
0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
|
||||
0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
|
||||
0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
|
||||
0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
|
||||
0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
|
||||
0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
|
||||
0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
|
||||
0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
|
||||
0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
|
||||
0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
|
||||
0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
|
||||
0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
|
||||
0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
|
||||
0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
|
||||
0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
|
||||
0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
|
||||
0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
|
||||
],
|
||||
# sbox 3
|
||||
[
|
||||
0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
|
||||
0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
|
||||
0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
|
||||
0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
|
||||
0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
|
||||
0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
|
||||
0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
|
||||
0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
|
||||
0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
|
||||
0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
|
||||
0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
|
||||
0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
|
||||
0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
|
||||
0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
|
||||
0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
|
||||
0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
|
||||
0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
|
||||
0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
|
||||
0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
|
||||
0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
|
||||
0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
|
||||
0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
|
||||
0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
|
||||
0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
|
||||
0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
|
||||
0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
|
||||
0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
|
||||
0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
|
||||
0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
|
||||
0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
|
||||
0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
|
||||
0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
|
||||
0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
|
||||
0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
|
||||
0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
|
||||
0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
|
||||
0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
|
||||
0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
|
||||
0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
|
||||
0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
|
||||
0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
|
||||
0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
|
||||
0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
|
||||
0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
|
||||
0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
|
||||
0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
|
||||
0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
|
||||
0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
|
||||
0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
|
||||
0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
|
||||
0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
|
||||
0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
|
||||
0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
|
||||
0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
|
||||
0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
|
||||
0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
|
||||
0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
|
||||
0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
|
||||
0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
|
||||
0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
|
||||
0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
|
||||
0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
|
||||
0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
|
||||
0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
|
||||
],
|
||||
# sbox 4
|
||||
[
|
||||
0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
|
||||
0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
|
||||
0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
|
||||
0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
|
||||
0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
|
||||
0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
|
||||
0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
|
||||
0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
|
||||
0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
|
||||
0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
|
||||
0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
|
||||
0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
|
||||
0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
|
||||
0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
|
||||
0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
|
||||
0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
|
||||
0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
|
||||
0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
|
||||
0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
|
||||
0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
|
||||
0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
|
||||
0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
|
||||
0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
|
||||
0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
|
||||
0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
|
||||
0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
|
||||
0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
|
||||
0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
|
||||
0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
|
||||
0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
|
||||
0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
|
||||
0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
|
||||
0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
|
||||
0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
|
||||
0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
|
||||
0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
|
||||
0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
|
||||
0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
|
||||
0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
|
||||
0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
|
||||
0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
|
||||
0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
|
||||
0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
|
||||
0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
|
||||
0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
|
||||
0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
|
||||
0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
|
||||
0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
|
||||
0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
|
||||
0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
|
||||
0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
|
||||
0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
|
||||
0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
|
||||
0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
|
||||
0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
|
||||
0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
|
||||
0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
|
||||
0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
|
||||
0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
|
||||
0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
|
||||
0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
|
||||
0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
|
||||
0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
|
||||
0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6,
|
||||
]
|
||||
]
|
||||
|
||||
#=============================================================================
|
||||
# engine
|
||||
#=============================================================================
|
||||
class BlowfishEngine(object):
|
||||
|
||||
def __init__(self):
|
||||
if BLOWFISH_P is None:
|
||||
_init_constants()
|
||||
self.P = list(BLOWFISH_P)
|
||||
self.S = [ list(box) for box in BLOWFISH_S ]
|
||||
|
||||
#===================================================================
|
||||
# common helpers
|
||||
#===================================================================
|
||||
@staticmethod
|
||||
def key_to_words(data, size=18):
|
||||
"""convert data to tuple of <size> 4-byte integers, repeating or
|
||||
truncating data as needed to reach specified size"""
|
||||
assert isinstance(data, bytes)
|
||||
dlen = len(data)
|
||||
if not dlen:
|
||||
# return all zeros - original C code would just read the NUL after
|
||||
# the password, so mimicing that behavior for this edge case.
|
||||
return [0]*size
|
||||
|
||||
# repeat data until it fills up 4*size bytes
|
||||
data = repeat_string(data, size<<2)
|
||||
|
||||
# unpack
|
||||
return struct.unpack(">%dI" % (size,), data)
|
||||
|
||||
#===================================================================
|
||||
# blowfish routines
|
||||
#===================================================================
|
||||
def encipher(self, l, r):
|
||||
"""loop version of blowfish encipher routine"""
|
||||
P, S = self.P, self.S
|
||||
l ^= P[0]
|
||||
i = 1
|
||||
while i < 17:
|
||||
# Feistel substitution on left word
|
||||
r = ((((S[0][l >> 24] + S[1][(l >> 16) & 0xff]) ^ S[2][(l >> 8) & 0xff]) +
|
||||
S[3][l & 0xff]) & 0xffffffff) ^ P[i] ^ r
|
||||
# swap vars so even rounds do Feistel substition on right word
|
||||
l, r = r, l
|
||||
i += 1
|
||||
return r ^ P[17], l
|
||||
|
||||
# NOTE: decipher is same as above, just with reversed(P) instead.
|
||||
|
||||
def expand(self, key_words):
|
||||
"""perform stock Blowfish keyschedule setup"""
|
||||
assert len(key_words) >= 18, "key_words must be at least as large as P"
|
||||
P, S, encipher = self.P, self.S, self.encipher
|
||||
|
||||
i = 0
|
||||
while i < 18:
|
||||
P[i] ^= key_words[i]
|
||||
i += 1
|
||||
|
||||
i = l = r = 0
|
||||
while i < 18:
|
||||
P[i], P[i+1] = l,r = encipher(l,r)
|
||||
i += 2
|
||||
|
||||
for box in S:
|
||||
i = 0
|
||||
while i < 256:
|
||||
box[i], box[i+1] = l,r = encipher(l,r)
|
||||
i += 2
|
||||
|
||||
#===================================================================
|
||||
# eks-blowfish routines
|
||||
#===================================================================
|
||||
def eks_salted_expand(self, key_words, salt_words):
|
||||
"""perform EKS' salted version of Blowfish keyschedule setup"""
|
||||
# NOTE: this is the same as expand(), except for the addition
|
||||
# of the operations involving *salt_words*.
|
||||
|
||||
assert len(key_words) >= 18, "key_words must be at least as large as P"
|
||||
salt_size = len(salt_words)
|
||||
assert salt_size, "salt_words must not be empty"
|
||||
assert not salt_size & 1, "salt_words must have even length"
|
||||
P, S, encipher = self.P, self.S, self.encipher
|
||||
|
||||
i = 0
|
||||
while i < 18:
|
||||
P[i] ^= key_words[i]
|
||||
i += 1
|
||||
|
||||
s = i = l = r = 0
|
||||
while i < 18:
|
||||
l ^= salt_words[s]
|
||||
r ^= salt_words[s+1]
|
||||
s += 2
|
||||
if s == salt_size:
|
||||
s = 0
|
||||
P[i], P[i+1] = l,r = encipher(l,r) # next()
|
||||
i += 2
|
||||
|
||||
for box in S:
|
||||
i = 0
|
||||
while i < 256:
|
||||
l ^= salt_words[s]
|
||||
r ^= salt_words[s+1]
|
||||
s += 2
|
||||
if s == salt_size:
|
||||
s = 0
|
||||
box[i], box[i+1] = l,r = encipher(l,r) # next()
|
||||
i += 2
|
||||
|
||||
def eks_repeated_expand(self, key_words, salt_words, rounds):
|
||||
"""perform rounds stage of EKS keyschedule setup"""
|
||||
expand = self.expand
|
||||
n = 0
|
||||
while n < rounds:
|
||||
expand(key_words)
|
||||
expand(salt_words)
|
||||
n += 1
|
||||
|
||||
def repeat_encipher(self, l, r, count):
|
||||
"""repeatedly apply encipher operation to a block"""
|
||||
encipher = self.encipher
|
||||
n = 0
|
||||
while n < count:
|
||||
l, r = encipher(l, r)
|
||||
n += 1
|
||||
return l, r
|
||||
|
||||
#===================================================================
|
||||
# eoc
|
||||
#===================================================================
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
771
src/passlib/utils/_blowfish/unrolled.py
Normal file
771
src/passlib/utils/_blowfish/unrolled.py
Normal file
@@ -0,0 +1,771 @@
|
||||
"""passlib.utils._blowfish.unrolled - unrolled loop implementation of bcrypt,
|
||||
autogenerated by _gen_files.py
|
||||
|
||||
currently this override the encipher() and expand() methods
|
||||
with optimized versions, and leaves the other base.py methods alone.
|
||||
"""
|
||||
#=============================================================================
|
||||
# imports
|
||||
#=============================================================================
|
||||
# pkg
|
||||
from passlib.utils._blowfish.base import BlowfishEngine as _BlowfishEngine
|
||||
# local
|
||||
__all__ = [
|
||||
"BlowfishEngine",
|
||||
]
|
||||
#=============================================================================
|
||||
#
|
||||
#=============================================================================
|
||||
class BlowfishEngine(_BlowfishEngine):
|
||||
|
||||
def encipher(self, l, r):
|
||||
"""blowfish encipher a single 64-bit block encoded as two 32-bit ints"""
|
||||
|
||||
(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9,
|
||||
p10, p11, p12, p13, p14, p15, p16, p17) = self.P
|
||||
S0, S1, S2, S3 = self.S
|
||||
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
|
||||
return r ^ p17, l
|
||||
|
||||
def expand(self, key_words):
|
||||
"""unrolled version of blowfish key expansion"""
|
||||
##assert len(key_words) >= 18, "size of key_words must be >= 18"
|
||||
|
||||
P, S = self.P, self.S
|
||||
S0, S1, S2, S3 = S
|
||||
|
||||
#=============================================================
|
||||
# integrate key
|
||||
#=============================================================
|
||||
p0 = P[0] ^ key_words[0]
|
||||
p1 = P[1] ^ key_words[1]
|
||||
p2 = P[2] ^ key_words[2]
|
||||
p3 = P[3] ^ key_words[3]
|
||||
p4 = P[4] ^ key_words[4]
|
||||
p5 = P[5] ^ key_words[5]
|
||||
p6 = P[6] ^ key_words[6]
|
||||
p7 = P[7] ^ key_words[7]
|
||||
p8 = P[8] ^ key_words[8]
|
||||
p9 = P[9] ^ key_words[9]
|
||||
p10 = P[10] ^ key_words[10]
|
||||
p11 = P[11] ^ key_words[11]
|
||||
p12 = P[12] ^ key_words[12]
|
||||
p13 = P[13] ^ key_words[13]
|
||||
p14 = P[14] ^ key_words[14]
|
||||
p15 = P[15] ^ key_words[15]
|
||||
p16 = P[16] ^ key_words[16]
|
||||
p17 = P[17] ^ key_words[17]
|
||||
|
||||
#=============================================================
|
||||
# update P
|
||||
#=============================================================
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[0] and P[1]
|
||||
#------------------------------------------------
|
||||
l, r = p0, 0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
|
||||
p0, p1 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[2] and P[3]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p2, p3 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[4] and P[5]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p4, p5 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[6] and P[7]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p6, p7 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[8] and P[9]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p8, p9 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[10] and P[11]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p10, p11 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[12] and P[13]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p12, p13 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[14] and P[15]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p14, p15 = l, r = r ^ p17, l
|
||||
|
||||
#------------------------------------------------
|
||||
# update P[16] and P[17]
|
||||
#------------------------------------------------
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
p16, p17 = l, r = r ^ p17, l
|
||||
|
||||
|
||||
#------------------------------------------------
|
||||
# save changes to original P array
|
||||
#------------------------------------------------
|
||||
P[:] = (p0, p1, p2, p3, p4, p5, p6, p7, p8, p9,
|
||||
p10, p11, p12, p13, p14, p15, p16, p17)
|
||||
|
||||
#=============================================================
|
||||
# update S
|
||||
#=============================================================
|
||||
|
||||
for box in S:
|
||||
j = 0
|
||||
while j < 256:
|
||||
l ^= p0
|
||||
|
||||
# Feistel substitution on left word (round 0)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p1
|
||||
|
||||
# Feistel substitution on right word (round 1)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p2
|
||||
# Feistel substitution on left word (round 2)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p3
|
||||
|
||||
# Feistel substitution on right word (round 3)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p4
|
||||
# Feistel substitution on left word (round 4)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p5
|
||||
|
||||
# Feistel substitution on right word (round 5)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p6
|
||||
# Feistel substitution on left word (round 6)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p7
|
||||
|
||||
# Feistel substitution on right word (round 7)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p8
|
||||
# Feistel substitution on left word (round 8)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p9
|
||||
|
||||
# Feistel substitution on right word (round 9)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p10
|
||||
# Feistel substitution on left word (round 10)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p11
|
||||
|
||||
# Feistel substitution on right word (round 11)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p12
|
||||
# Feistel substitution on left word (round 12)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p13
|
||||
|
||||
# Feistel substitution on right word (round 13)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p14
|
||||
# Feistel substitution on left word (round 14)
|
||||
r ^= ((((S0[l >> 24] + S1[(l >> 16) & 0xff]) ^ S2[(l >> 8) & 0xff]) +
|
||||
S3[l & 0xff]) & 0xffffffff) ^ p15
|
||||
|
||||
# Feistel substitution on right word (round 15)
|
||||
l ^= ((((S0[r >> 24] + S1[(r >> 16) & 0xff]) ^ S2[(r >> 8) & 0xff]) +
|
||||
S3[r & 0xff]) & 0xffffffff) ^ p16
|
||||
|
||||
box[j], box[j+1] = l, r = r ^ p17, l
|
||||
j += 2
|
||||
#===================================================================
|
||||
# eoc
|
||||
#===================================================================
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
438
src/passlib/utils/compat.py
Normal file
438
src/passlib/utils/compat.py
Normal file
@@ -0,0 +1,438 @@
|
||||
"""passlib.utils.compat - python 2/3 compatibility helpers"""
|
||||
#=============================================================================
|
||||
# figure out what we're running
|
||||
#=============================================================================
|
||||
|
||||
#------------------------------------------------------------------------
|
||||
# python version
|
||||
#------------------------------------------------------------------------
|
||||
import sys
|
||||
PY2 = sys.version_info < (3,0)
|
||||
PY3 = sys.version_info >= (3,0)
|
||||
PY_MAX_25 = sys.version_info < (2,6) # py 2.5 or earlier
|
||||
PY27 = sys.version_info[:2] == (2,7) # supports last 2.x release
|
||||
PY_MIN_32 = sys.version_info >= (3,2) # py 3.2 or later
|
||||
|
||||
#------------------------------------------------------------------------
|
||||
# python implementation
|
||||
#------------------------------------------------------------------------
|
||||
PYPY = hasattr(sys, "pypy_version_info")
|
||||
JYTHON = sys.platform.startswith('java')
|
||||
|
||||
#------------------------------------------------------------------------
|
||||
# capabilities
|
||||
#------------------------------------------------------------------------
|
||||
|
||||
# __dir__() added in py2.6
|
||||
SUPPORTS_DIR_METHOD = not PY_MAX_25 and not (PYPY and sys.pypy_version_info < (1,6))
|
||||
|
||||
#=============================================================================
|
||||
# common imports
|
||||
#=============================================================================
|
||||
import logging; log = logging.getLogger(__name__)
|
||||
if PY3:
|
||||
import builtins
|
||||
else:
|
||||
import __builtin__ as builtins
|
||||
|
||||
def add_doc(obj, doc):
|
||||
"""add docstring to an object"""
|
||||
obj.__doc__ = doc
|
||||
|
||||
#=============================================================================
|
||||
# the default exported vars
|
||||
#=============================================================================
|
||||
__all__ = [
|
||||
# python versions
|
||||
'PY2', 'PY3', 'PY_MAX_25', 'PY27', 'PY_MIN_32',
|
||||
|
||||
# io
|
||||
'BytesIO', 'StringIO', 'NativeStringIO', 'SafeConfigParser',
|
||||
'print_',
|
||||
|
||||
# type detection
|
||||
## 'is_mapping',
|
||||
'callable',
|
||||
'int_types',
|
||||
'num_types',
|
||||
'base_string_types',
|
||||
|
||||
# unicode/bytes types & helpers
|
||||
'u', 'b',
|
||||
'unicode', 'bytes',
|
||||
'uascii_to_str', 'bascii_to_str',
|
||||
'str_to_uascii', 'str_to_bascii',
|
||||
'join_unicode', 'join_bytes',
|
||||
'join_byte_values', 'join_byte_elems',
|
||||
'byte_elem_value',
|
||||
'iter_byte_values',
|
||||
|
||||
# iteration helpers
|
||||
'irange', #'lrange',
|
||||
'imap', 'lmap',
|
||||
'iteritems', 'itervalues',
|
||||
'next',
|
||||
|
||||
# introspection
|
||||
'exc_err', 'get_method_function', 'add_doc',
|
||||
]
|
||||
|
||||
# begin accumulating mapping of lazy-loaded attrs,
|
||||
# 'merged' into module at bottom
|
||||
_lazy_attrs = dict()
|
||||
|
||||
#=============================================================================
|
||||
# unicode & bytes types
|
||||
#=============================================================================
|
||||
if PY3:
|
||||
unicode = str
|
||||
bytes = builtins.bytes
|
||||
|
||||
def u(s):
|
||||
assert isinstance(s, str)
|
||||
return s
|
||||
|
||||
def b(s):
|
||||
assert isinstance(s, str)
|
||||
return s.encode("latin-1")
|
||||
|
||||
base_string_types = (unicode, bytes)
|
||||
native_string_types = (unicode,)
|
||||
|
||||
else:
|
||||
unicode = builtins.unicode
|
||||
bytes = str if PY_MAX_25 else builtins.bytes
|
||||
|
||||
def u(s):
|
||||
assert isinstance(s, str)
|
||||
return s.decode("unicode_escape")
|
||||
|
||||
def b(s):
|
||||
assert isinstance(s, str)
|
||||
return s
|
||||
|
||||
base_string_types = basestring
|
||||
native_string_types = (basestring,)
|
||||
|
||||
#=============================================================================
|
||||
# unicode & bytes helpers
|
||||
#=============================================================================
|
||||
# function to join list of unicode strings
|
||||
join_unicode = u('').join
|
||||
|
||||
# function to join list of byte strings
|
||||
join_bytes = b('').join
|
||||
|
||||
if PY3:
|
||||
def uascii_to_str(s):
|
||||
assert isinstance(s, unicode)
|
||||
return s
|
||||
|
||||
def bascii_to_str(s):
|
||||
assert isinstance(s, bytes)
|
||||
return s.decode("ascii")
|
||||
|
||||
def str_to_uascii(s):
|
||||
assert isinstance(s, str)
|
||||
return s
|
||||
|
||||
def str_to_bascii(s):
|
||||
assert isinstance(s, str)
|
||||
return s.encode("ascii")
|
||||
|
||||
join_byte_values = join_byte_elems = bytes
|
||||
|
||||
def byte_elem_value(elem):
|
||||
assert isinstance(elem, int)
|
||||
return elem
|
||||
|
||||
def iter_byte_values(s):
|
||||
assert isinstance(s, bytes)
|
||||
return s
|
||||
|
||||
def iter_byte_chars(s):
|
||||
assert isinstance(s, bytes)
|
||||
# FIXME: there has to be a better way to do this
|
||||
return (bytes([c]) for c in s)
|
||||
|
||||
else:
|
||||
def uascii_to_str(s):
|
||||
assert isinstance(s, unicode)
|
||||
return s.encode("ascii")
|
||||
|
||||
def bascii_to_str(s):
|
||||
assert isinstance(s, bytes)
|
||||
return s
|
||||
|
||||
def str_to_uascii(s):
|
||||
assert isinstance(s, str)
|
||||
return s.decode("ascii")
|
||||
|
||||
def str_to_bascii(s):
|
||||
assert isinstance(s, str)
|
||||
return s
|
||||
|
||||
def join_byte_values(values):
|
||||
return join_bytes(chr(v) for v in values)
|
||||
|
||||
join_byte_elems = join_bytes
|
||||
|
||||
byte_elem_value = ord
|
||||
|
||||
def iter_byte_values(s):
|
||||
assert isinstance(s, bytes)
|
||||
return (ord(c) for c in s)
|
||||
|
||||
def iter_byte_chars(s):
|
||||
assert isinstance(s, bytes)
|
||||
return s
|
||||
|
||||
add_doc(uascii_to_str, "helper to convert ascii unicode -> native str")
|
||||
add_doc(bascii_to_str, "helper to convert ascii bytes -> native str")
|
||||
add_doc(str_to_uascii, "helper to convert ascii native str -> unicode")
|
||||
add_doc(str_to_bascii, "helper to convert ascii native str -> bytes")
|
||||
|
||||
# join_byte_values -- function to convert list of ordinal integers to byte string.
|
||||
|
||||
# join_byte_elems -- function to convert list of byte elements to byte string;
|
||||
# i.e. what's returned by ``b('a')[0]``...
|
||||
# this is b('a') under PY2, but 97 under PY3.
|
||||
|
||||
# byte_elem_value -- function to convert byte element to integer -- a noop under PY3
|
||||
|
||||
add_doc(iter_byte_values, "iterate over byte string as sequence of ints 0-255")
|
||||
add_doc(iter_byte_chars, "iterate over byte string as sequence of 1-byte strings")
|
||||
|
||||
#=============================================================================
|
||||
# numeric
|
||||
#=============================================================================
|
||||
if PY3:
|
||||
int_types = (int,)
|
||||
num_types = (int, float)
|
||||
else:
|
||||
int_types = (int, long)
|
||||
num_types = (int, long, float)
|
||||
|
||||
#=============================================================================
|
||||
# iteration helpers
|
||||
#
|
||||
# irange - range iterable / view (xrange under py2, range under py3)
|
||||
# lrange - range list (range under py2, list(range()) under py3)
|
||||
#
|
||||
# imap - map to iterator
|
||||
# lmap - map to list
|
||||
#=============================================================================
|
||||
if PY3:
|
||||
irange = range
|
||||
##def lrange(*a,**k):
|
||||
## return list(range(*a,**k))
|
||||
|
||||
def lmap(*a, **k):
|
||||
return list(map(*a,**k))
|
||||
imap = map
|
||||
|
||||
def iteritems(d):
|
||||
return d.items()
|
||||
def itervalues(d):
|
||||
return d.values()
|
||||
|
||||
next_method_attr = "__next__"
|
||||
|
||||
else:
|
||||
irange = xrange
|
||||
##lrange = range
|
||||
|
||||
lmap = map
|
||||
from itertools import imap
|
||||
|
||||
def iteritems(d):
|
||||
return d.iteritems()
|
||||
def itervalues(d):
|
||||
return d.itervalues()
|
||||
|
||||
next_method_attr = "next"
|
||||
|
||||
if PY_MAX_25:
|
||||
_undef = object()
|
||||
def next(itr, default=_undef):
|
||||
"""compat wrapper for next()"""
|
||||
if default is _undef:
|
||||
return itr.next()
|
||||
try:
|
||||
return itr.next()
|
||||
except StopIteration:
|
||||
return default
|
||||
else:
|
||||
next = builtins.next
|
||||
|
||||
#=============================================================================
|
||||
# typing
|
||||
#=============================================================================
|
||||
##def is_mapping(obj):
|
||||
## # non-exhaustive check, enough to distinguish from lists, etc
|
||||
## return hasattr(obj, "items")
|
||||
|
||||
if (3,0) <= sys.version_info < (3,2):
|
||||
# callable isn't dead, it's just resting
|
||||
from collections import Callable
|
||||
def callable(obj):
|
||||
return isinstance(obj, Callable)
|
||||
else:
|
||||
callable = builtins.callable
|
||||
|
||||
#=============================================================================
|
||||
# introspection
|
||||
#=============================================================================
|
||||
def exc_err():
|
||||
"""return current error object (to avoid try/except syntax change)"""
|
||||
return sys.exc_info()[1]
|
||||
|
||||
if PY3:
|
||||
method_function_attr = "__func__"
|
||||
else:
|
||||
method_function_attr = "im_func"
|
||||
|
||||
def get_method_function(func):
|
||||
"""given (potential) method, return underlying function"""
|
||||
return getattr(func, method_function_attr, func)
|
||||
|
||||
#=============================================================================
|
||||
# input/output
|
||||
#=============================================================================
|
||||
if PY3:
|
||||
_lazy_attrs = dict(
|
||||
BytesIO="io.BytesIO",
|
||||
UnicodeIO="io.StringIO",
|
||||
NativeStringIO="io.StringIO",
|
||||
SafeConfigParser="configparser.SafeConfigParser",
|
||||
)
|
||||
if sys.version_info >= (3,2):
|
||||
# py32 renamed this, removing old ConfigParser
|
||||
_lazy_attrs["SafeConfigParser"] = "configparser.ConfigParser"
|
||||
|
||||
print_ = getattr(builtins, "print")
|
||||
|
||||
else:
|
||||
_lazy_attrs = dict(
|
||||
BytesIO="cStringIO.StringIO",
|
||||
UnicodeIO="StringIO.StringIO",
|
||||
NativeStringIO="cStringIO.StringIO",
|
||||
SafeConfigParser="ConfigParser.SafeConfigParser",
|
||||
)
|
||||
|
||||
def print_(*args, **kwds):
|
||||
"""The new-style print function."""
|
||||
# extract kwd args
|
||||
fp = kwds.pop("file", sys.stdout)
|
||||
sep = kwds.pop("sep", None)
|
||||
end = kwds.pop("end", None)
|
||||
if kwds:
|
||||
raise TypeError("invalid keyword arguments")
|
||||
|
||||
# short-circuit if no target
|
||||
if fp is None:
|
||||
return
|
||||
|
||||
# use unicode or bytes ?
|
||||
want_unicode = isinstance(sep, unicode) or isinstance(end, unicode) or \
|
||||
any(isinstance(arg, unicode) for arg in args)
|
||||
|
||||
# pick default end sequence
|
||||
if end is None:
|
||||
end = u("\n") if want_unicode else "\n"
|
||||
elif not isinstance(end, base_string_types):
|
||||
raise TypeError("end must be None or a string")
|
||||
|
||||
# pick default separator
|
||||
if sep is None:
|
||||
sep = u(" ") if want_unicode else " "
|
||||
elif not isinstance(sep, base_string_types):
|
||||
raise TypeError("sep must be None or a string")
|
||||
|
||||
# write to buffer
|
||||
first = True
|
||||
write = fp.write
|
||||
for arg in args:
|
||||
if first:
|
||||
first = False
|
||||
else:
|
||||
write(sep)
|
||||
if not isinstance(arg, basestring):
|
||||
arg = str(arg)
|
||||
write(arg)
|
||||
write(end)
|
||||
|
||||
#=============================================================================
|
||||
# lazy overlay module
|
||||
#=============================================================================
|
||||
from types import ModuleType
|
||||
|
||||
def _import_object(source):
|
||||
"""helper to import object from module; accept format `path.to.object`"""
|
||||
modname, modattr = source.rsplit(".",1)
|
||||
mod = __import__(modname, fromlist=[modattr], level=0)
|
||||
return getattr(mod, modattr)
|
||||
|
||||
class _LazyOverlayModule(ModuleType):
|
||||
"""proxy module which overlays original module,
|
||||
and lazily imports specified attributes.
|
||||
|
||||
this is mainly used to prevent importing of resources
|
||||
that are only needed by certain password hashes,
|
||||
yet allow them to be imported from a single location.
|
||||
|
||||
used by :mod:`passlib.utils`, :mod:`passlib.utils.crypto`,
|
||||
and :mod:`passlib.utils.compat`.
|
||||
"""
|
||||
|
||||
@classmethod
|
||||
def replace_module(cls, name, attrmap):
|
||||
orig = sys.modules[name]
|
||||
self = cls(name, attrmap, orig)
|
||||
sys.modules[name] = self
|
||||
return self
|
||||
|
||||
def __init__(self, name, attrmap, proxy=None):
|
||||
ModuleType.__init__(self, name)
|
||||
self.__attrmap = attrmap
|
||||
self.__proxy = proxy
|
||||
self.__log = logging.getLogger(name)
|
||||
|
||||
def __getattr__(self, attr):
|
||||
proxy = self.__proxy
|
||||
if proxy and hasattr(proxy, attr):
|
||||
return getattr(proxy, attr)
|
||||
attrmap = self.__attrmap
|
||||
if attr in attrmap:
|
||||
source = attrmap[attr]
|
||||
if callable(source):
|
||||
value = source()
|
||||
else:
|
||||
value = _import_object(source)
|
||||
setattr(self, attr, value)
|
||||
self.__log.debug("loaded lazy attr %r: %r", attr, value)
|
||||
return value
|
||||
raise AttributeError("'module' object has no attribute '%s'" % (attr,))
|
||||
|
||||
def __repr__(self):
|
||||
proxy = self.__proxy
|
||||
if proxy:
|
||||
return repr(proxy)
|
||||
else:
|
||||
return ModuleType.__repr__(self)
|
||||
|
||||
def __dir__(self):
|
||||
attrs = set(dir(self.__class__))
|
||||
attrs.update(self.__dict__)
|
||||
attrs.update(self.__attrmap)
|
||||
proxy = self.__proxy
|
||||
if proxy is not None:
|
||||
attrs.update(dir(proxy))
|
||||
return list(attrs)
|
||||
|
||||
# replace this module with overlay that will lazily import attributes.
|
||||
_LazyOverlayModule.replace_module(__name__, _lazy_attrs)
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
859
src/passlib/utils/des.py
Normal file
859
src/passlib/utils/des.py
Normal file
@@ -0,0 +1,859 @@
|
||||
"""passlib.utils.des -- DES block encryption routines
|
||||
|
||||
History
|
||||
=======
|
||||
These routines (which have since been drastically modified for python)
|
||||
are based on a Java implementation of the des-crypt algorithm,
|
||||
found at `<http://www.dynamic.net.au/christos/crypt/UnixCrypt2.txt>`_.
|
||||
|
||||
The copyright & license for that source is as follows::
|
||||
|
||||
UnixCrypt.java 0.9 96/11/25
|
||||
Copyright (c) 1996 Aki Yoshida. All rights reserved.
|
||||
Permission to use, copy, modify and distribute this software
|
||||
for non-commercial or commercial purposes and without fee is
|
||||
hereby granted provided that this copyright notice appears in
|
||||
all copies.
|
||||
|
||||
---
|
||||
|
||||
Unix crypt(3C) utility
|
||||
@version 0.9, 11/25/96
|
||||
@author Aki Yoshida
|
||||
|
||||
---
|
||||
|
||||
modified April 2001
|
||||
by Iris Van den Broeke, Daniel Deville
|
||||
|
||||
---
|
||||
Unix Crypt.
|
||||
Implements the one way cryptography used by Unix systems for
|
||||
simple password protection.
|
||||
@version $Id: UnixCrypt2.txt,v 1.1.1.1 2005/09/13 22:20:13 christos Exp $
|
||||
@author Greg Wilkins (gregw)
|
||||
|
||||
The netbsd des-crypt implementation has some nice notes on how this all works -
|
||||
http://fxr.googlebit.com/source/lib/libcrypt/crypt.c?v=NETBSD-CURRENT
|
||||
"""
|
||||
|
||||
# TODO: could use an accelerated C version of this module to speed up lmhash,
|
||||
# des-crypt, and ext-des-crypt
|
||||
|
||||
#=============================================================================
|
||||
# imports
|
||||
#=============================================================================
|
||||
# core
|
||||
import struct
|
||||
# pkg
|
||||
from passlib import exc
|
||||
from passlib.utils.compat import bytes, join_byte_values, byte_elem_value, \
|
||||
b, irange, irange, int_types
|
||||
from passlib.utils import deprecated_function
|
||||
# local
|
||||
__all__ = [
|
||||
"expand_des_key",
|
||||
"des_encrypt_block",
|
||||
"mdes_encrypt_int_block",
|
||||
]
|
||||
|
||||
#=============================================================================
|
||||
# constants
|
||||
#=============================================================================
|
||||
|
||||
# masks/upper limits for various integer sizes
|
||||
INT_24_MASK = 0xffffff
|
||||
INT_56_MASK = 0xffffffffffffff
|
||||
INT_64_MASK = 0xffffffffffffffff
|
||||
|
||||
# mask to clear parity bits from 64-bit key
|
||||
_KDATA_MASK = 0xfefefefefefefefe
|
||||
_KPARITY_MASK = 0x0101010101010101
|
||||
|
||||
# mask used to setup key schedule
|
||||
_KS_MASK = 0xfcfcfcfcffffffff
|
||||
|
||||
#=============================================================================
|
||||
# static DES tables
|
||||
#=============================================================================
|
||||
|
||||
# placeholders filled in by _load_tables()
|
||||
PCXROT = IE3264 = SPE = CF6464 = None
|
||||
|
||||
def _load_tables():
|
||||
"""delay loading tables until they are actually needed"""
|
||||
global PCXROT, IE3264, SPE, CF6464
|
||||
|
||||
#---------------------------------------------------------------
|
||||
# Initial key schedule permutation
|
||||
# PC1ROT - bit reverse, then PC1, then Rotate, then PC2
|
||||
#---------------------------------------------------------------
|
||||
# NOTE: this was reordered from original table to make perm3264 logic simpler
|
||||
PC1ROT=(
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000002000, 0x0000000000002000,
|
||||
0x0000000000000020, 0x0000000000000020, 0x0000000000002020, 0x0000000000002020,
|
||||
0x0000000000000400, 0x0000000000000400, 0x0000000000002400, 0x0000000000002400,
|
||||
0x0000000000000420, 0x0000000000000420, 0x0000000000002420, 0x0000000000002420, ),
|
||||
( 0x0000000000000000, 0x2000000000000000, 0x0000000400000000, 0x2000000400000000,
|
||||
0x0000800000000000, 0x2000800000000000, 0x0000800400000000, 0x2000800400000000,
|
||||
0x0008000000000000, 0x2008000000000000, 0x0008000400000000, 0x2008000400000000,
|
||||
0x0008800000000000, 0x2008800000000000, 0x0008800400000000, 0x2008800400000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000040, 0x0000000000000040,
|
||||
0x0000000020000000, 0x0000000020000000, 0x0000000020000040, 0x0000000020000040,
|
||||
0x0000000000200000, 0x0000000000200000, 0x0000000000200040, 0x0000000000200040,
|
||||
0x0000000020200000, 0x0000000020200000, 0x0000000020200040, 0x0000000020200040, ),
|
||||
( 0x0000000000000000, 0x0002000000000000, 0x0800000000000000, 0x0802000000000000,
|
||||
0x0100000000000000, 0x0102000000000000, 0x0900000000000000, 0x0902000000000000,
|
||||
0x4000000000000000, 0x4002000000000000, 0x4800000000000000, 0x4802000000000000,
|
||||
0x4100000000000000, 0x4102000000000000, 0x4900000000000000, 0x4902000000000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000040000, 0x0000000000040000,
|
||||
0x0000020000000000, 0x0000020000000000, 0x0000020000040000, 0x0000020000040000,
|
||||
0x0000000000000004, 0x0000000000000004, 0x0000000000040004, 0x0000000000040004,
|
||||
0x0000020000000004, 0x0000020000000004, 0x0000020000040004, 0x0000020000040004, ),
|
||||
( 0x0000000000000000, 0x0000400000000000, 0x0200000000000000, 0x0200400000000000,
|
||||
0x0080000000000000, 0x0080400000000000, 0x0280000000000000, 0x0280400000000000,
|
||||
0x0000008000000000, 0x0000408000000000, 0x0200008000000000, 0x0200408000000000,
|
||||
0x0080008000000000, 0x0080408000000000, 0x0280008000000000, 0x0280408000000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000010000000, 0x0000000010000000,
|
||||
0x0000000000001000, 0x0000000000001000, 0x0000000010001000, 0x0000000010001000,
|
||||
0x0000000040000000, 0x0000000040000000, 0x0000000050000000, 0x0000000050000000,
|
||||
0x0000000040001000, 0x0000000040001000, 0x0000000050001000, 0x0000000050001000, ),
|
||||
( 0x0000000000000000, 0x0000001000000000, 0x0000080000000000, 0x0000081000000000,
|
||||
0x1000000000000000, 0x1000001000000000, 0x1000080000000000, 0x1000081000000000,
|
||||
0x0004000000000000, 0x0004001000000000, 0x0004080000000000, 0x0004081000000000,
|
||||
0x1004000000000000, 0x1004001000000000, 0x1004080000000000, 0x1004081000000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000080, 0x0000000000000080,
|
||||
0x0000000000080000, 0x0000000000080000, 0x0000000000080080, 0x0000000000080080,
|
||||
0x0000000000800000, 0x0000000000800000, 0x0000000000800080, 0x0000000000800080,
|
||||
0x0000000000880000, 0x0000000000880000, 0x0000000000880080, 0x0000000000880080, ),
|
||||
( 0x0000000000000000, 0x0000000008000000, 0x0000002000000000, 0x0000002008000000,
|
||||
0x0000100000000000, 0x0000100008000000, 0x0000102000000000, 0x0000102008000000,
|
||||
0x0000200000000000, 0x0000200008000000, 0x0000202000000000, 0x0000202008000000,
|
||||
0x0000300000000000, 0x0000300008000000, 0x0000302000000000, 0x0000302008000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000400000, 0x0000000000400000,
|
||||
0x0000000004000000, 0x0000000004000000, 0x0000000004400000, 0x0000000004400000,
|
||||
0x0000000000000800, 0x0000000000000800, 0x0000000000400800, 0x0000000000400800,
|
||||
0x0000000004000800, 0x0000000004000800, 0x0000000004400800, 0x0000000004400800, ),
|
||||
( 0x0000000000000000, 0x0000000000008000, 0x0040000000000000, 0x0040000000008000,
|
||||
0x0000004000000000, 0x0000004000008000, 0x0040004000000000, 0x0040004000008000,
|
||||
0x8000000000000000, 0x8000000000008000, 0x8040000000000000, 0x8040000000008000,
|
||||
0x8000004000000000, 0x8000004000008000, 0x8040004000000000, 0x8040004000008000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000004000, 0x0000000000004000,
|
||||
0x0000000000000008, 0x0000000000000008, 0x0000000000004008, 0x0000000000004008,
|
||||
0x0000000000000010, 0x0000000000000010, 0x0000000000004010, 0x0000000000004010,
|
||||
0x0000000000000018, 0x0000000000000018, 0x0000000000004018, 0x0000000000004018, ),
|
||||
( 0x0000000000000000, 0x0000000200000000, 0x0001000000000000, 0x0001000200000000,
|
||||
0x0400000000000000, 0x0400000200000000, 0x0401000000000000, 0x0401000200000000,
|
||||
0x0020000000000000, 0x0020000200000000, 0x0021000000000000, 0x0021000200000000,
|
||||
0x0420000000000000, 0x0420000200000000, 0x0421000000000000, 0x0421000200000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000010000000000, 0x0000010000000000,
|
||||
0x0000000100000000, 0x0000000100000000, 0x0000010100000000, 0x0000010100000000,
|
||||
0x0000000000100000, 0x0000000000100000, 0x0000010000100000, 0x0000010000100000,
|
||||
0x0000000100100000, 0x0000000100100000, 0x0000010100100000, 0x0000010100100000, ),
|
||||
( 0x0000000000000000, 0x0000000080000000, 0x0000040000000000, 0x0000040080000000,
|
||||
0x0010000000000000, 0x0010000080000000, 0x0010040000000000, 0x0010040080000000,
|
||||
0x0000000800000000, 0x0000000880000000, 0x0000040800000000, 0x0000040880000000,
|
||||
0x0010000800000000, 0x0010000880000000, 0x0010040800000000, 0x0010040880000000, ),
|
||||
)
|
||||
#---------------------------------------------------------------
|
||||
# Subsequent key schedule rotation permutations
|
||||
# PC2ROT - PC2 inverse, then Rotate, then PC2
|
||||
#---------------------------------------------------------------
|
||||
# NOTE: this was reordered from original table to make perm3264 logic simpler
|
||||
PC2ROTA=(
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000000200000, 0x0000000000200000, 0x0000000000200000, 0x0000000000200000,
|
||||
0x0000000004000000, 0x0000000004000000, 0x0000000004000000, 0x0000000004000000,
|
||||
0x0000000004200000, 0x0000000004200000, 0x0000000004200000, 0x0000000004200000, ),
|
||||
( 0x0000000000000000, 0x0000000000000800, 0x0000010000000000, 0x0000010000000800,
|
||||
0x0000000000002000, 0x0000000000002800, 0x0000010000002000, 0x0000010000002800,
|
||||
0x0000000010000000, 0x0000000010000800, 0x0000010010000000, 0x0000010010000800,
|
||||
0x0000000010002000, 0x0000000010002800, 0x0000010010002000, 0x0000010010002800, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000100000000, 0x0000000100000000, 0x0000000100000000, 0x0000000100000000,
|
||||
0x0000000000800000, 0x0000000000800000, 0x0000000000800000, 0x0000000000800000,
|
||||
0x0000000100800000, 0x0000000100800000, 0x0000000100800000, 0x0000000100800000, ),
|
||||
( 0x0000000000000000, 0x0000020000000000, 0x0000000080000000, 0x0000020080000000,
|
||||
0x0000000000400000, 0x0000020000400000, 0x0000000080400000, 0x0000020080400000,
|
||||
0x0000000008000000, 0x0000020008000000, 0x0000000088000000, 0x0000020088000000,
|
||||
0x0000000008400000, 0x0000020008400000, 0x0000000088400000, 0x0000020088400000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000000000040, 0x0000000000000040, 0x0000000000000040, 0x0000000000000040,
|
||||
0x0000000000001000, 0x0000000000001000, 0x0000000000001000, 0x0000000000001000,
|
||||
0x0000000000001040, 0x0000000000001040, 0x0000000000001040, 0x0000000000001040, ),
|
||||
( 0x0000000000000000, 0x0000000000000010, 0x0000000000000400, 0x0000000000000410,
|
||||
0x0000000000000080, 0x0000000000000090, 0x0000000000000480, 0x0000000000000490,
|
||||
0x0000000040000000, 0x0000000040000010, 0x0000000040000400, 0x0000000040000410,
|
||||
0x0000000040000080, 0x0000000040000090, 0x0000000040000480, 0x0000000040000490, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000000080000, 0x0000000000080000, 0x0000000000080000, 0x0000000000080000,
|
||||
0x0000000000100000, 0x0000000000100000, 0x0000000000100000, 0x0000000000100000,
|
||||
0x0000000000180000, 0x0000000000180000, 0x0000000000180000, 0x0000000000180000, ),
|
||||
( 0x0000000000000000, 0x0000000000040000, 0x0000000000000020, 0x0000000000040020,
|
||||
0x0000000000000004, 0x0000000000040004, 0x0000000000000024, 0x0000000000040024,
|
||||
0x0000000200000000, 0x0000000200040000, 0x0000000200000020, 0x0000000200040020,
|
||||
0x0000000200000004, 0x0000000200040004, 0x0000000200000024, 0x0000000200040024, ),
|
||||
( 0x0000000000000000, 0x0000000000000008, 0x0000000000008000, 0x0000000000008008,
|
||||
0x0010000000000000, 0x0010000000000008, 0x0010000000008000, 0x0010000000008008,
|
||||
0x0020000000000000, 0x0020000000000008, 0x0020000000008000, 0x0020000000008008,
|
||||
0x0030000000000000, 0x0030000000000008, 0x0030000000008000, 0x0030000000008008, ),
|
||||
( 0x0000000000000000, 0x0000400000000000, 0x0000080000000000, 0x0000480000000000,
|
||||
0x0000100000000000, 0x0000500000000000, 0x0000180000000000, 0x0000580000000000,
|
||||
0x4000000000000000, 0x4000400000000000, 0x4000080000000000, 0x4000480000000000,
|
||||
0x4000100000000000, 0x4000500000000000, 0x4000180000000000, 0x4000580000000000, ),
|
||||
( 0x0000000000000000, 0x0000000000004000, 0x0000000020000000, 0x0000000020004000,
|
||||
0x0001000000000000, 0x0001000000004000, 0x0001000020000000, 0x0001000020004000,
|
||||
0x0200000000000000, 0x0200000000004000, 0x0200000020000000, 0x0200000020004000,
|
||||
0x0201000000000000, 0x0201000000004000, 0x0201000020000000, 0x0201000020004000, ),
|
||||
( 0x0000000000000000, 0x1000000000000000, 0x0004000000000000, 0x1004000000000000,
|
||||
0x0002000000000000, 0x1002000000000000, 0x0006000000000000, 0x1006000000000000,
|
||||
0x0000000800000000, 0x1000000800000000, 0x0004000800000000, 0x1004000800000000,
|
||||
0x0002000800000000, 0x1002000800000000, 0x0006000800000000, 0x1006000800000000, ),
|
||||
( 0x0000000000000000, 0x0040000000000000, 0x2000000000000000, 0x2040000000000000,
|
||||
0x0000008000000000, 0x0040008000000000, 0x2000008000000000, 0x2040008000000000,
|
||||
0x0000001000000000, 0x0040001000000000, 0x2000001000000000, 0x2040001000000000,
|
||||
0x0000009000000000, 0x0040009000000000, 0x2000009000000000, 0x2040009000000000, ),
|
||||
( 0x0000000000000000, 0x0400000000000000, 0x8000000000000000, 0x8400000000000000,
|
||||
0x0000002000000000, 0x0400002000000000, 0x8000002000000000, 0x8400002000000000,
|
||||
0x0100000000000000, 0x0500000000000000, 0x8100000000000000, 0x8500000000000000,
|
||||
0x0100002000000000, 0x0500002000000000, 0x8100002000000000, 0x8500002000000000, ),
|
||||
( 0x0000000000000000, 0x0000800000000000, 0x0800000000000000, 0x0800800000000000,
|
||||
0x0000004000000000, 0x0000804000000000, 0x0800004000000000, 0x0800804000000000,
|
||||
0x0000000400000000, 0x0000800400000000, 0x0800000400000000, 0x0800800400000000,
|
||||
0x0000004400000000, 0x0000804400000000, 0x0800004400000000, 0x0800804400000000, ),
|
||||
( 0x0000000000000000, 0x0080000000000000, 0x0000040000000000, 0x0080040000000000,
|
||||
0x0008000000000000, 0x0088000000000000, 0x0008040000000000, 0x0088040000000000,
|
||||
0x0000200000000000, 0x0080200000000000, 0x0000240000000000, 0x0080240000000000,
|
||||
0x0008200000000000, 0x0088200000000000, 0x0008240000000000, 0x0088240000000000, ),
|
||||
)
|
||||
|
||||
# NOTE: this was reordered from original table to make perm3264 logic simpler
|
||||
PC2ROTB=(
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000000000400, 0x0000000000000400, 0x0000000000000400, 0x0000000000000400,
|
||||
0x0000000000080000, 0x0000000000080000, 0x0000000000080000, 0x0000000000080000,
|
||||
0x0000000000080400, 0x0000000000080400, 0x0000000000080400, 0x0000000000080400, ),
|
||||
( 0x0000000000000000, 0x0000000000800000, 0x0000000000004000, 0x0000000000804000,
|
||||
0x0000000080000000, 0x0000000080800000, 0x0000000080004000, 0x0000000080804000,
|
||||
0x0000000000040000, 0x0000000000840000, 0x0000000000044000, 0x0000000000844000,
|
||||
0x0000000080040000, 0x0000000080840000, 0x0000000080044000, 0x0000000080844000, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000000000008, 0x0000000000000008, 0x0000000000000008, 0x0000000000000008,
|
||||
0x0000000040000000, 0x0000000040000000, 0x0000000040000000, 0x0000000040000000,
|
||||
0x0000000040000008, 0x0000000040000008, 0x0000000040000008, 0x0000000040000008, ),
|
||||
( 0x0000000000000000, 0x0000000020000000, 0x0000000200000000, 0x0000000220000000,
|
||||
0x0000000000000080, 0x0000000020000080, 0x0000000200000080, 0x0000000220000080,
|
||||
0x0000000000100000, 0x0000000020100000, 0x0000000200100000, 0x0000000220100000,
|
||||
0x0000000000100080, 0x0000000020100080, 0x0000000200100080, 0x0000000220100080, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000000002000, 0x0000000000002000, 0x0000000000002000, 0x0000000000002000,
|
||||
0x0000020000000000, 0x0000020000000000, 0x0000020000000000, 0x0000020000000000,
|
||||
0x0000020000002000, 0x0000020000002000, 0x0000020000002000, 0x0000020000002000, ),
|
||||
( 0x0000000000000000, 0x0000000000000800, 0x0000000100000000, 0x0000000100000800,
|
||||
0x0000000010000000, 0x0000000010000800, 0x0000000110000000, 0x0000000110000800,
|
||||
0x0000000000000004, 0x0000000000000804, 0x0000000100000004, 0x0000000100000804,
|
||||
0x0000000010000004, 0x0000000010000804, 0x0000000110000004, 0x0000000110000804, ),
|
||||
( 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000,
|
||||
0x0000000000001000, 0x0000000000001000, 0x0000000000001000, 0x0000000000001000,
|
||||
0x0000000000000010, 0x0000000000000010, 0x0000000000000010, 0x0000000000000010,
|
||||
0x0000000000001010, 0x0000000000001010, 0x0000000000001010, 0x0000000000001010, ),
|
||||
( 0x0000000000000000, 0x0000000000000040, 0x0000010000000000, 0x0000010000000040,
|
||||
0x0000000000200000, 0x0000000000200040, 0x0000010000200000, 0x0000010000200040,
|
||||
0x0000000000008000, 0x0000000000008040, 0x0000010000008000, 0x0000010000008040,
|
||||
0x0000000000208000, 0x0000000000208040, 0x0000010000208000, 0x0000010000208040, ),
|
||||
( 0x0000000000000000, 0x0000000004000000, 0x0000000008000000, 0x000000000c000000,
|
||||
0x0400000000000000, 0x0400000004000000, 0x0400000008000000, 0x040000000c000000,
|
||||
0x8000000000000000, 0x8000000004000000, 0x8000000008000000, 0x800000000c000000,
|
||||
0x8400000000000000, 0x8400000004000000, 0x8400000008000000, 0x840000000c000000, ),
|
||||
( 0x0000000000000000, 0x0002000000000000, 0x0200000000000000, 0x0202000000000000,
|
||||
0x1000000000000000, 0x1002000000000000, 0x1200000000000000, 0x1202000000000000,
|
||||
0x0008000000000000, 0x000a000000000000, 0x0208000000000000, 0x020a000000000000,
|
||||
0x1008000000000000, 0x100a000000000000, 0x1208000000000000, 0x120a000000000000, ),
|
||||
( 0x0000000000000000, 0x0000000000400000, 0x0000000000000020, 0x0000000000400020,
|
||||
0x0040000000000000, 0x0040000000400000, 0x0040000000000020, 0x0040000000400020,
|
||||
0x0800000000000000, 0x0800000000400000, 0x0800000000000020, 0x0800000000400020,
|
||||
0x0840000000000000, 0x0840000000400000, 0x0840000000000020, 0x0840000000400020, ),
|
||||
( 0x0000000000000000, 0x0080000000000000, 0x0000008000000000, 0x0080008000000000,
|
||||
0x2000000000000000, 0x2080000000000000, 0x2000008000000000, 0x2080008000000000,
|
||||
0x0020000000000000, 0x00a0000000000000, 0x0020008000000000, 0x00a0008000000000,
|
||||
0x2020000000000000, 0x20a0000000000000, 0x2020008000000000, 0x20a0008000000000, ),
|
||||
( 0x0000000000000000, 0x0000002000000000, 0x0000040000000000, 0x0000042000000000,
|
||||
0x4000000000000000, 0x4000002000000000, 0x4000040000000000, 0x4000042000000000,
|
||||
0x0000400000000000, 0x0000402000000000, 0x0000440000000000, 0x0000442000000000,
|
||||
0x4000400000000000, 0x4000402000000000, 0x4000440000000000, 0x4000442000000000, ),
|
||||
( 0x0000000000000000, 0x0000004000000000, 0x0000200000000000, 0x0000204000000000,
|
||||
0x0000080000000000, 0x0000084000000000, 0x0000280000000000, 0x0000284000000000,
|
||||
0x0000800000000000, 0x0000804000000000, 0x0000a00000000000, 0x0000a04000000000,
|
||||
0x0000880000000000, 0x0000884000000000, 0x0000a80000000000, 0x0000a84000000000, ),
|
||||
( 0x0000000000000000, 0x0000000800000000, 0x0000000400000000, 0x0000000c00000000,
|
||||
0x0000100000000000, 0x0000100800000000, 0x0000100400000000, 0x0000100c00000000,
|
||||
0x0010000000000000, 0x0010000800000000, 0x0010000400000000, 0x0010000c00000000,
|
||||
0x0010100000000000, 0x0010100800000000, 0x0010100400000000, 0x0010100c00000000, ),
|
||||
( 0x0000000000000000, 0x0100000000000000, 0x0001000000000000, 0x0101000000000000,
|
||||
0x0000001000000000, 0x0100001000000000, 0x0001001000000000, 0x0101001000000000,
|
||||
0x0004000000000000, 0x0104000000000000, 0x0005000000000000, 0x0105000000000000,
|
||||
0x0004001000000000, 0x0104001000000000, 0x0005001000000000, 0x0105001000000000, ),
|
||||
)
|
||||
#---------------------------------------------------------------
|
||||
# PCXROT - PC1ROT, PC2ROTA, PC2ROTB listed in order
|
||||
# of the PC1 rotation schedule, as used by des_setkey
|
||||
#---------------------------------------------------------------
|
||||
##ROTATES = (1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1)
|
||||
##PCXROT = (
|
||||
## PC1ROT, PC2ROTA, PC2ROTB, PC2ROTB,
|
||||
## PC2ROTB, PC2ROTB, PC2ROTB, PC2ROTB,
|
||||
## PC2ROTA, PC2ROTB, PC2ROTB, PC2ROTB,
|
||||
## PC2ROTB, PC2ROTB, PC2ROTB, PC2ROTA,
|
||||
## )
|
||||
|
||||
# NOTE: modified PCXROT to contain entrys broken into pairs,
|
||||
# to help generate them in format best used by encoder.
|
||||
PCXROT = (
|
||||
(PC1ROT, PC2ROTA), (PC2ROTB, PC2ROTB),
|
||||
(PC2ROTB, PC2ROTB), (PC2ROTB, PC2ROTB),
|
||||
(PC2ROTA, PC2ROTB), (PC2ROTB, PC2ROTB),
|
||||
(PC2ROTB, PC2ROTB), (PC2ROTB, PC2ROTA),
|
||||
)
|
||||
|
||||
#---------------------------------------------------------------
|
||||
# Bit reverse, intial permupation, expantion
|
||||
# Initial permutation/expansion table
|
||||
#---------------------------------------------------------------
|
||||
# NOTE: this was reordered from original table to make perm3264 logic simpler
|
||||
IE3264=(
|
||||
( 0x0000000000000000, 0x0000000000800800, 0x0000000000008008, 0x0000000000808808,
|
||||
0x0000008008000000, 0x0000008008800800, 0x0000008008008008, 0x0000008008808808,
|
||||
0x0000000080080000, 0x0000000080880800, 0x0000000080088008, 0x0000000080888808,
|
||||
0x0000008088080000, 0x0000008088880800, 0x0000008088088008, 0x0000008088888808, ),
|
||||
( 0x0000000000000000, 0x0080080000000000, 0x0000800800000000, 0x0080880800000000,
|
||||
0x0800000000000080, 0x0880080000000080, 0x0800800800000080, 0x0880880800000080,
|
||||
0x8008000000000000, 0x8088080000000000, 0x8008800800000000, 0x8088880800000000,
|
||||
0x8808000000000080, 0x8888080000000080, 0x8808800800000080, 0x8888880800000080, ),
|
||||
( 0x0000000000000000, 0x0000000000001000, 0x0000000000000010, 0x0000000000001010,
|
||||
0x0000000010000000, 0x0000000010001000, 0x0000000010000010, 0x0000000010001010,
|
||||
0x0000000000100000, 0x0000000000101000, 0x0000000000100010, 0x0000000000101010,
|
||||
0x0000000010100000, 0x0000000010101000, 0x0000000010100010, 0x0000000010101010, ),
|
||||
( 0x0000000000000000, 0x0000100000000000, 0x0000001000000000, 0x0000101000000000,
|
||||
0x1000000000000000, 0x1000100000000000, 0x1000001000000000, 0x1000101000000000,
|
||||
0x0010000000000000, 0x0010100000000000, 0x0010001000000000, 0x0010101000000000,
|
||||
0x1010000000000000, 0x1010100000000000, 0x1010001000000000, 0x1010101000000000, ),
|
||||
( 0x0000000000000000, 0x0000000000002000, 0x0000000000000020, 0x0000000000002020,
|
||||
0x0000000020000000, 0x0000000020002000, 0x0000000020000020, 0x0000000020002020,
|
||||
0x0000000000200000, 0x0000000000202000, 0x0000000000200020, 0x0000000000202020,
|
||||
0x0000000020200000, 0x0000000020202000, 0x0000000020200020, 0x0000000020202020, ),
|
||||
( 0x0000000000000000, 0x0000200000000000, 0x0000002000000000, 0x0000202000000000,
|
||||
0x2000000000000000, 0x2000200000000000, 0x2000002000000000, 0x2000202000000000,
|
||||
0x0020000000000000, 0x0020200000000000, 0x0020002000000000, 0x0020202000000000,
|
||||
0x2020000000000000, 0x2020200000000000, 0x2020002000000000, 0x2020202000000000, ),
|
||||
( 0x0000000000000000, 0x0000000000004004, 0x0400000000000040, 0x0400000000004044,
|
||||
0x0000000040040000, 0x0000000040044004, 0x0400000040040040, 0x0400000040044044,
|
||||
0x0000000000400400, 0x0000000000404404, 0x0400000000400440, 0x0400000000404444,
|
||||
0x0000000040440400, 0x0000000040444404, 0x0400000040440440, 0x0400000040444444, ),
|
||||
( 0x0000000000000000, 0x0000400400000000, 0x0000004004000000, 0x0000404404000000,
|
||||
0x4004000000000000, 0x4004400400000000, 0x4004004004000000, 0x4004404404000000,
|
||||
0x0040040000000000, 0x0040440400000000, 0x0040044004000000, 0x0040444404000000,
|
||||
0x4044040000000000, 0x4044440400000000, 0x4044044004000000, 0x4044444404000000, ),
|
||||
)
|
||||
|
||||
#---------------------------------------------------------------
|
||||
# Table that combines the S, P, and E operations.
|
||||
#---------------------------------------------------------------
|
||||
SPE=(
|
||||
( 0x0080088008200000, 0x0000008008000000, 0x0000000000200020, 0x0080088008200020,
|
||||
0x0000000000200000, 0x0080088008000020, 0x0000008008000020, 0x0000000000200020,
|
||||
0x0080088008000020, 0x0080088008200000, 0x0000008008200000, 0x0080080000000020,
|
||||
0x0080080000200020, 0x0000000000200000, 0x0000000000000000, 0x0000008008000020,
|
||||
0x0000008008000000, 0x0000000000000020, 0x0080080000200000, 0x0080088008000000,
|
||||
0x0080088008200020, 0x0000008008200000, 0x0080080000000020, 0x0080080000200000,
|
||||
0x0000000000000020, 0x0080080000000000, 0x0080088008000000, 0x0000008008200020,
|
||||
0x0080080000000000, 0x0080080000200020, 0x0000008008200020, 0x0000000000000000,
|
||||
0x0000000000000000, 0x0080088008200020, 0x0080080000200000, 0x0000008008000020,
|
||||
0x0080088008200000, 0x0000008008000000, 0x0080080000000020, 0x0080080000200000,
|
||||
0x0000008008200020, 0x0080080000000000, 0x0080088008000000, 0x0000000000200020,
|
||||
0x0080088008000020, 0x0000000000000020, 0x0000000000200020, 0x0000008008200000,
|
||||
0x0080088008200020, 0x0080088008000000, 0x0000008008200000, 0x0080080000200020,
|
||||
0x0000000000200000, 0x0080080000000020, 0x0000008008000020, 0x0000000000000000,
|
||||
0x0000008008000000, 0x0000000000200000, 0x0080080000200020, 0x0080088008200000,
|
||||
0x0000000000000020, 0x0000008008200020, 0x0080080000000000, 0x0080088008000020, ),
|
||||
( 0x1000800810004004, 0x0000000000000000, 0x0000800810000000, 0x0000000010004004,
|
||||
0x1000000000004004, 0x1000800800000000, 0x0000800800004004, 0x0000800810000000,
|
||||
0x0000800800000000, 0x1000000010004004, 0x1000000000000000, 0x0000800800004004,
|
||||
0x1000000010000000, 0x0000800810004004, 0x0000000010004004, 0x1000000000000000,
|
||||
0x0000000010000000, 0x1000800800004004, 0x1000000010004004, 0x0000800800000000,
|
||||
0x1000800810000000, 0x0000000000004004, 0x0000000000000000, 0x1000000010000000,
|
||||
0x1000800800004004, 0x1000800810000000, 0x0000800810004004, 0x1000000000004004,
|
||||
0x0000000000004004, 0x0000000010000000, 0x1000800800000000, 0x1000800810004004,
|
||||
0x1000000010000000, 0x0000800810004004, 0x0000800800004004, 0x1000800810000000,
|
||||
0x1000800810004004, 0x1000000010000000, 0x1000000000004004, 0x0000000000000000,
|
||||
0x0000000000004004, 0x1000800800000000, 0x0000000010000000, 0x1000000010004004,
|
||||
0x0000800800000000, 0x0000000000004004, 0x1000800810000000, 0x1000800800004004,
|
||||
0x0000800810004004, 0x0000800800000000, 0x0000000000000000, 0x1000000000004004,
|
||||
0x1000000000000000, 0x1000800810004004, 0x0000800810000000, 0x0000000010004004,
|
||||
0x1000000010004004, 0x0000000010000000, 0x1000800800000000, 0x0000800800004004,
|
||||
0x1000800800004004, 0x1000000000000000, 0x0000000010004004, 0x0000800810000000, ),
|
||||
( 0x0000000000400410, 0x0010004004400400, 0x0010000000000000, 0x0010000000400410,
|
||||
0x0000004004000010, 0x0000000000400400, 0x0010000000400410, 0x0010004004000000,
|
||||
0x0010000000400400, 0x0000004004000000, 0x0000004004400400, 0x0000000000000010,
|
||||
0x0010004004400410, 0x0010000000000010, 0x0000000000000010, 0x0000004004400410,
|
||||
0x0000000000000000, 0x0000004004000010, 0x0010004004400400, 0x0010000000000000,
|
||||
0x0010000000000010, 0x0010004004400410, 0x0000004004000000, 0x0000000000400410,
|
||||
0x0000004004400410, 0x0010000000400400, 0x0010004004000010, 0x0000004004400400,
|
||||
0x0010004004000000, 0x0000000000000000, 0x0000000000400400, 0x0010004004000010,
|
||||
0x0010004004400400, 0x0010000000000000, 0x0000000000000010, 0x0000004004000000,
|
||||
0x0010000000000010, 0x0000004004000010, 0x0000004004400400, 0x0010000000400410,
|
||||
0x0000000000000000, 0x0010004004400400, 0x0010004004000000, 0x0000004004400410,
|
||||
0x0000004004000010, 0x0000000000400400, 0x0010004004400410, 0x0000000000000010,
|
||||
0x0010004004000010, 0x0000000000400410, 0x0000000000400400, 0x0010004004400410,
|
||||
0x0000004004000000, 0x0010000000400400, 0x0010000000400410, 0x0010004004000000,
|
||||
0x0010000000400400, 0x0000000000000000, 0x0000004004400410, 0x0010000000000010,
|
||||
0x0000000000400410, 0x0010004004000010, 0x0010000000000000, 0x0000004004400400, ),
|
||||
( 0x0800100040040080, 0x0000100000001000, 0x0800000000000080, 0x0800100040041080,
|
||||
0x0000000000000000, 0x0000000040041000, 0x0800100000001080, 0x0800000040040080,
|
||||
0x0000100040041000, 0x0800000000001080, 0x0000000000001000, 0x0800100000000080,
|
||||
0x0800000000001080, 0x0800100040040080, 0x0000000040040000, 0x0000000000001000,
|
||||
0x0800000040041080, 0x0000100040040000, 0x0000100000000000, 0x0800000000000080,
|
||||
0x0000100040040000, 0x0800100000001080, 0x0000000040041000, 0x0000100000000000,
|
||||
0x0800100000000080, 0x0000000000000000, 0x0800000040040080, 0x0000100040041000,
|
||||
0x0000100000001000, 0x0800000040041080, 0x0800100040041080, 0x0000000040040000,
|
||||
0x0800000040041080, 0x0800100000000080, 0x0000000040040000, 0x0800000000001080,
|
||||
0x0000100040040000, 0x0000100000001000, 0x0800000000000080, 0x0000000040041000,
|
||||
0x0800100000001080, 0x0000000000000000, 0x0000100000000000, 0x0800000040040080,
|
||||
0x0000000000000000, 0x0800000040041080, 0x0000100040041000, 0x0000100000000000,
|
||||
0x0000000000001000, 0x0800100040041080, 0x0800100040040080, 0x0000000040040000,
|
||||
0x0800100040041080, 0x0800000000000080, 0x0000100000001000, 0x0800100040040080,
|
||||
0x0800000040040080, 0x0000100040040000, 0x0000000040041000, 0x0800100000001080,
|
||||
0x0800100000000080, 0x0000000000001000, 0x0800000000001080, 0x0000100040041000, ),
|
||||
( 0x0000000000800800, 0x0000001000000000, 0x0040040000000000, 0x2040041000800800,
|
||||
0x2000001000800800, 0x0040040000800800, 0x2040041000000000, 0x0000001000800800,
|
||||
0x0000001000000000, 0x2000000000000000, 0x2000000000800800, 0x0040041000000000,
|
||||
0x2040040000800800, 0x2000001000800800, 0x0040041000800800, 0x0000000000000000,
|
||||
0x0040041000000000, 0x0000000000800800, 0x2000001000000000, 0x2040040000000000,
|
||||
0x0040040000800800, 0x2040041000000000, 0x0000000000000000, 0x2000000000800800,
|
||||
0x2000000000000000, 0x2040040000800800, 0x2040041000800800, 0x2000001000000000,
|
||||
0x0000001000800800, 0x0040040000000000, 0x2040040000000000, 0x0040041000800800,
|
||||
0x0040041000800800, 0x2040040000800800, 0x2000001000000000, 0x0000001000800800,
|
||||
0x0000001000000000, 0x2000000000000000, 0x2000000000800800, 0x0040040000800800,
|
||||
0x0000000000800800, 0x0040041000000000, 0x2040041000800800, 0x0000000000000000,
|
||||
0x2040041000000000, 0x0000000000800800, 0x0040040000000000, 0x2000001000000000,
|
||||
0x2040040000800800, 0x0040040000000000, 0x0000000000000000, 0x2040041000800800,
|
||||
0x2000001000800800, 0x0040041000800800, 0x2040040000000000, 0x0000001000000000,
|
||||
0x0040041000000000, 0x2000001000800800, 0x0040040000800800, 0x2040040000000000,
|
||||
0x2000000000000000, 0x2040041000000000, 0x0000001000800800, 0x2000000000800800, ),
|
||||
( 0x4004000000008008, 0x4004000020000000, 0x0000000000000000, 0x0000200020008008,
|
||||
0x4004000020000000, 0x0000200000000000, 0x4004200000008008, 0x0000000020000000,
|
||||
0x4004200000000000, 0x4004200020008008, 0x0000200020000000, 0x0000000000008008,
|
||||
0x0000200000008008, 0x4004000000008008, 0x0000000020008008, 0x4004200020000000,
|
||||
0x0000000020000000, 0x4004200000008008, 0x4004000020008008, 0x0000000000000000,
|
||||
0x0000200000000000, 0x4004000000000000, 0x0000200020008008, 0x4004000020008008,
|
||||
0x4004200020008008, 0x0000000020008008, 0x0000000000008008, 0x4004200000000000,
|
||||
0x4004000000000000, 0x0000200020000000, 0x4004200020000000, 0x0000200000008008,
|
||||
0x4004200000000000, 0x0000000000008008, 0x0000200000008008, 0x4004200020000000,
|
||||
0x0000200020008008, 0x4004000020000000, 0x0000000000000000, 0x0000200000008008,
|
||||
0x0000000000008008, 0x0000200000000000, 0x4004000020008008, 0x0000000020000000,
|
||||
0x4004000020000000, 0x4004200020008008, 0x0000200020000000, 0x4004000000000000,
|
||||
0x4004200020008008, 0x0000200020000000, 0x0000000020000000, 0x4004200000008008,
|
||||
0x4004000000008008, 0x0000000020008008, 0x4004200020000000, 0x0000000000000000,
|
||||
0x0000200000000000, 0x4004000000008008, 0x4004200000008008, 0x0000200020008008,
|
||||
0x0000000020008008, 0x4004200000000000, 0x4004000000000000, 0x4004000020008008, ),
|
||||
( 0x0000400400000000, 0x0020000000000000, 0x0020000000100000, 0x0400000000100040,
|
||||
0x0420400400100040, 0x0400400400000040, 0x0020400400000000, 0x0000000000000000,
|
||||
0x0000000000100000, 0x0420000000100040, 0x0420000000000040, 0x0000400400100000,
|
||||
0x0400000000000040, 0x0020400400100000, 0x0000400400100000, 0x0420000000000040,
|
||||
0x0420000000100040, 0x0000400400000000, 0x0400400400000040, 0x0420400400100040,
|
||||
0x0000000000000000, 0x0020000000100000, 0x0400000000100040, 0x0020400400000000,
|
||||
0x0400400400100040, 0x0420400400000040, 0x0020400400100000, 0x0400000000000040,
|
||||
0x0420400400000040, 0x0400400400100040, 0x0020000000000000, 0x0000000000100000,
|
||||
0x0420400400000040, 0x0000400400100000, 0x0400400400100040, 0x0420000000000040,
|
||||
0x0000400400000000, 0x0020000000000000, 0x0000000000100000, 0x0400400400100040,
|
||||
0x0420000000100040, 0x0420400400000040, 0x0020400400000000, 0x0000000000000000,
|
||||
0x0020000000000000, 0x0400000000100040, 0x0400000000000040, 0x0020000000100000,
|
||||
0x0000000000000000, 0x0420000000100040, 0x0020000000100000, 0x0020400400000000,
|
||||
0x0420000000000040, 0x0000400400000000, 0x0420400400100040, 0x0000000000100000,
|
||||
0x0020400400100000, 0x0400000000000040, 0x0400400400000040, 0x0420400400100040,
|
||||
0x0400000000100040, 0x0020400400100000, 0x0000400400100000, 0x0400400400000040, ),
|
||||
( 0x8008000080082000, 0x0000002080082000, 0x8008002000000000, 0x0000000000000000,
|
||||
0x0000002000002000, 0x8008000080080000, 0x0000000080082000, 0x8008002080082000,
|
||||
0x8008000000000000, 0x0000000000002000, 0x0000002080080000, 0x8008002000000000,
|
||||
0x8008002080080000, 0x8008002000002000, 0x8008000000002000, 0x0000000080082000,
|
||||
0x0000002000000000, 0x8008002080080000, 0x8008000080080000, 0x0000002000002000,
|
||||
0x8008002080082000, 0x8008000000002000, 0x0000000000000000, 0x0000002080080000,
|
||||
0x0000000000002000, 0x0000000080080000, 0x8008002000002000, 0x8008000080082000,
|
||||
0x0000000080080000, 0x0000002000000000, 0x0000002080082000, 0x8008000000000000,
|
||||
0x0000000080080000, 0x0000002000000000, 0x8008000000002000, 0x8008002080082000,
|
||||
0x8008002000000000, 0x0000000000002000, 0x0000000000000000, 0x0000002080080000,
|
||||
0x8008000080082000, 0x8008002000002000, 0x0000002000002000, 0x8008000080080000,
|
||||
0x0000002080082000, 0x8008000000000000, 0x8008000080080000, 0x0000002000002000,
|
||||
0x8008002080082000, 0x0000000080080000, 0x0000000080082000, 0x8008000000002000,
|
||||
0x0000002080080000, 0x8008002000000000, 0x8008002000002000, 0x0000000080082000,
|
||||
0x8008000000000000, 0x0000002080082000, 0x8008002080080000, 0x0000000000000000,
|
||||
0x0000000000002000, 0x8008000080082000, 0x0000002000000000, 0x8008002080080000, ),
|
||||
)
|
||||
|
||||
#---------------------------------------------------------------
|
||||
# compressed/interleaved => final permutation table
|
||||
# Compression, final permutation, bit reverse
|
||||
#---------------------------------------------------------------
|
||||
# NOTE: this was reordered from original table to make perm6464 logic simpler
|
||||
CF6464=(
|
||||
( 0x0000000000000000, 0x0000002000000000, 0x0000200000000000, 0x0000202000000000,
|
||||
0x0020000000000000, 0x0020002000000000, 0x0020200000000000, 0x0020202000000000,
|
||||
0x2000000000000000, 0x2000002000000000, 0x2000200000000000, 0x2000202000000000,
|
||||
0x2020000000000000, 0x2020002000000000, 0x2020200000000000, 0x2020202000000000, ),
|
||||
( 0x0000000000000000, 0x0000000200000000, 0x0000020000000000, 0x0000020200000000,
|
||||
0x0002000000000000, 0x0002000200000000, 0x0002020000000000, 0x0002020200000000,
|
||||
0x0200000000000000, 0x0200000200000000, 0x0200020000000000, 0x0200020200000000,
|
||||
0x0202000000000000, 0x0202000200000000, 0x0202020000000000, 0x0202020200000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000020, 0x0000000000002000, 0x0000000000002020,
|
||||
0x0000000000200000, 0x0000000000200020, 0x0000000000202000, 0x0000000000202020,
|
||||
0x0000000020000000, 0x0000000020000020, 0x0000000020002000, 0x0000000020002020,
|
||||
0x0000000020200000, 0x0000000020200020, 0x0000000020202000, 0x0000000020202020, ),
|
||||
( 0x0000000000000000, 0x0000000000000002, 0x0000000000000200, 0x0000000000000202,
|
||||
0x0000000000020000, 0x0000000000020002, 0x0000000000020200, 0x0000000000020202,
|
||||
0x0000000002000000, 0x0000000002000002, 0x0000000002000200, 0x0000000002000202,
|
||||
0x0000000002020000, 0x0000000002020002, 0x0000000002020200, 0x0000000002020202, ),
|
||||
( 0x0000000000000000, 0x0000008000000000, 0x0000800000000000, 0x0000808000000000,
|
||||
0x0080000000000000, 0x0080008000000000, 0x0080800000000000, 0x0080808000000000,
|
||||
0x8000000000000000, 0x8000008000000000, 0x8000800000000000, 0x8000808000000000,
|
||||
0x8080000000000000, 0x8080008000000000, 0x8080800000000000, 0x8080808000000000, ),
|
||||
( 0x0000000000000000, 0x0000000800000000, 0x0000080000000000, 0x0000080800000000,
|
||||
0x0008000000000000, 0x0008000800000000, 0x0008080000000000, 0x0008080800000000,
|
||||
0x0800000000000000, 0x0800000800000000, 0x0800080000000000, 0x0800080800000000,
|
||||
0x0808000000000000, 0x0808000800000000, 0x0808080000000000, 0x0808080800000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000080, 0x0000000000008000, 0x0000000000008080,
|
||||
0x0000000000800000, 0x0000000000800080, 0x0000000000808000, 0x0000000000808080,
|
||||
0x0000000080000000, 0x0000000080000080, 0x0000000080008000, 0x0000000080008080,
|
||||
0x0000000080800000, 0x0000000080800080, 0x0000000080808000, 0x0000000080808080, ),
|
||||
( 0x0000000000000000, 0x0000000000000008, 0x0000000000000800, 0x0000000000000808,
|
||||
0x0000000000080000, 0x0000000000080008, 0x0000000000080800, 0x0000000000080808,
|
||||
0x0000000008000000, 0x0000000008000008, 0x0000000008000800, 0x0000000008000808,
|
||||
0x0000000008080000, 0x0000000008080008, 0x0000000008080800, 0x0000000008080808, ),
|
||||
( 0x0000000000000000, 0x0000001000000000, 0x0000100000000000, 0x0000101000000000,
|
||||
0x0010000000000000, 0x0010001000000000, 0x0010100000000000, 0x0010101000000000,
|
||||
0x1000000000000000, 0x1000001000000000, 0x1000100000000000, 0x1000101000000000,
|
||||
0x1010000000000000, 0x1010001000000000, 0x1010100000000000, 0x1010101000000000, ),
|
||||
( 0x0000000000000000, 0x0000000100000000, 0x0000010000000000, 0x0000010100000000,
|
||||
0x0001000000000000, 0x0001000100000000, 0x0001010000000000, 0x0001010100000000,
|
||||
0x0100000000000000, 0x0100000100000000, 0x0100010000000000, 0x0100010100000000,
|
||||
0x0101000000000000, 0x0101000100000000, 0x0101010000000000, 0x0101010100000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000010, 0x0000000000001000, 0x0000000000001010,
|
||||
0x0000000000100000, 0x0000000000100010, 0x0000000000101000, 0x0000000000101010,
|
||||
0x0000000010000000, 0x0000000010000010, 0x0000000010001000, 0x0000000010001010,
|
||||
0x0000000010100000, 0x0000000010100010, 0x0000000010101000, 0x0000000010101010, ),
|
||||
( 0x0000000000000000, 0x0000000000000001, 0x0000000000000100, 0x0000000000000101,
|
||||
0x0000000000010000, 0x0000000000010001, 0x0000000000010100, 0x0000000000010101,
|
||||
0x0000000001000000, 0x0000000001000001, 0x0000000001000100, 0x0000000001000101,
|
||||
0x0000000001010000, 0x0000000001010001, 0x0000000001010100, 0x0000000001010101, ),
|
||||
( 0x0000000000000000, 0x0000004000000000, 0x0000400000000000, 0x0000404000000000,
|
||||
0x0040000000000000, 0x0040004000000000, 0x0040400000000000, 0x0040404000000000,
|
||||
0x4000000000000000, 0x4000004000000000, 0x4000400000000000, 0x4000404000000000,
|
||||
0x4040000000000000, 0x4040004000000000, 0x4040400000000000, 0x4040404000000000, ),
|
||||
( 0x0000000000000000, 0x0000000400000000, 0x0000040000000000, 0x0000040400000000,
|
||||
0x0004000000000000, 0x0004000400000000, 0x0004040000000000, 0x0004040400000000,
|
||||
0x0400000000000000, 0x0400000400000000, 0x0400040000000000, 0x0400040400000000,
|
||||
0x0404000000000000, 0x0404000400000000, 0x0404040000000000, 0x0404040400000000, ),
|
||||
( 0x0000000000000000, 0x0000000000000040, 0x0000000000004000, 0x0000000000004040,
|
||||
0x0000000000400000, 0x0000000000400040, 0x0000000000404000, 0x0000000000404040,
|
||||
0x0000000040000000, 0x0000000040000040, 0x0000000040004000, 0x0000000040004040,
|
||||
0x0000000040400000, 0x0000000040400040, 0x0000000040404000, 0x0000000040404040, ),
|
||||
( 0x0000000000000000, 0x0000000000000004, 0x0000000000000400, 0x0000000000000404,
|
||||
0x0000000000040000, 0x0000000000040004, 0x0000000000040400, 0x0000000000040404,
|
||||
0x0000000004000000, 0x0000000004000004, 0x0000000004000400, 0x0000000004000404,
|
||||
0x0000000004040000, 0x0000000004040004, 0x0000000004040400, 0x0000000004040404, ),
|
||||
)
|
||||
#===================================================================
|
||||
# eof _load_tables()
|
||||
#===================================================================
|
||||
|
||||
#=============================================================================
|
||||
# support
|
||||
#=============================================================================
|
||||
|
||||
def _permute(c, p):
|
||||
"""Returns the permutation of the given 32-bit or 64-bit code with
|
||||
the specified permutation table."""
|
||||
# NOTE: only difference between 32 & 64 bit permutations
|
||||
# is that len(p)==8 for 32 bit, and len(p)==16 for 64 bit.
|
||||
out = 0
|
||||
for r in p:
|
||||
out |= r[c&0xf]
|
||||
c >>= 4
|
||||
return out
|
||||
|
||||
#=============================================================================
|
||||
# packing & unpacking
|
||||
#=============================================================================
|
||||
_uint64_struct = struct.Struct(">Q")
|
||||
|
||||
_BNULL = b('\x00')
|
||||
|
||||
def _pack64(value):
|
||||
return _uint64_struct.pack(value)
|
||||
|
||||
def _unpack64(value):
|
||||
return _uint64_struct.unpack(value)[0]
|
||||
|
||||
def _pack56(value):
|
||||
return _uint64_struct.pack(value)[1:]
|
||||
|
||||
def _unpack56(value):
|
||||
return _uint64_struct.unpack(_BNULL+value)[0]
|
||||
|
||||
#=============================================================================
|
||||
# 56->64 key manipulation
|
||||
#=============================================================================
|
||||
|
||||
##def expand_7bit(value):
|
||||
## "expand 7-bit integer => 7-bits + 1 odd-parity bit"
|
||||
## # parity calc adapted from 32-bit even parity alg found at
|
||||
## # http://graphics.stanford.edu/~seander/bithacks.html#ParityParallel
|
||||
## assert 0 <= value < 0x80, "value out of range"
|
||||
## return (value<<1) | (0x9669 >> ((value ^ (value >> 4)) & 0xf)) & 1
|
||||
|
||||
_EXPAND_ITER = irange(49,-7,-7)
|
||||
|
||||
def expand_des_key(key):
|
||||
"""convert DES from 7 bytes to 8 bytes (by inserting empty parity bits)"""
|
||||
if isinstance(key, bytes):
|
||||
if len(key) != 7:
|
||||
raise ValueError("key must be 7 bytes in size")
|
||||
elif isinstance(key, int_types):
|
||||
if key < 0 or key > INT_56_MASK:
|
||||
raise ValueError("key must be 56-bit non-negative integer")
|
||||
return _unpack64(expand_des_key(_pack56(key)))
|
||||
else:
|
||||
raise exc.ExpectedTypeError(key, "bytes or int", "key")
|
||||
key = _unpack56(key)
|
||||
# NOTE: the following would insert correctly-valued parity bits in each key,
|
||||
# but the parity bit would just be ignored in des_encrypt_block(),
|
||||
# so not bothering to use it.
|
||||
##return join_byte_values(expand_7bit((key >> shift) & 0x7f)
|
||||
## for shift in _EXPAND_ITER)
|
||||
return join_byte_values(((key>>shift) & 0x7f)<<1 for shift in _EXPAND_ITER)
|
||||
|
||||
def shrink_des_key(key):
|
||||
"""convert DES key from 8 bytes to 7 bytes (by discarding the parity bits)"""
|
||||
if isinstance(key, bytes):
|
||||
if len(key) != 8:
|
||||
raise ValueError("key must be 8 bytes in size")
|
||||
return _pack56(shrink_des_key(_unpack64(key)))
|
||||
elif isinstance(key, int_types):
|
||||
if key < 0 or key > INT_64_MASK:
|
||||
raise ValueError("key must be 64-bit non-negative integer")
|
||||
else:
|
||||
raise exc.ExpectedTypeError(key, "bytes or int", "key")
|
||||
key >>= 1
|
||||
result = 0
|
||||
offset = 0
|
||||
while offset < 56:
|
||||
result |= (key & 0x7f)<<offset
|
||||
key >>= 8
|
||||
offset += 7
|
||||
assert not (result & ~INT_64_MASK)
|
||||
return result
|
||||
|
||||
#=============================================================================
|
||||
# des encryption
|
||||
#=============================================================================
|
||||
def des_encrypt_block(key, input, salt=0, rounds=1):
|
||||
"""encrypt single block of data using DES, operates on 8-byte strings.
|
||||
|
||||
:arg key:
|
||||
DES key as 7 byte string, or 8 byte string with parity bits
|
||||
(parity bit values are ignored).
|
||||
|
||||
:arg input:
|
||||
plaintext block to encrypt, as 8 byte string.
|
||||
|
||||
:arg salt:
|
||||
Optional 24-bit integer used to mutate the base DES algorithm in a
|
||||
manner specific to :class:`~passlib.hash.des_crypt` and its variants.
|
||||
The default value ``0`` provides the normal (unsalted) DES behavior.
|
||||
The salt functions as follows:
|
||||
if the ``i``'th bit of ``salt`` is set,
|
||||
bits ``i`` and ``i+24`` are swapped in the DES E-box output.
|
||||
|
||||
:arg rounds:
|
||||
Optional number of rounds of to apply the DES key schedule.
|
||||
the default (``rounds=1``) provides the normal DES behavior,
|
||||
but :class:`~passlib.hash.des_crypt` and its variants use
|
||||
alternate rounds values.
|
||||
|
||||
:raises TypeError: if any of the provided args are of the wrong type.
|
||||
:raises ValueError:
|
||||
if any of the input blocks are the wrong size,
|
||||
or the salt/rounds values are out of range.
|
||||
|
||||
:returns:
|
||||
resulting 8-byte ciphertext block.
|
||||
"""
|
||||
# validate & unpack key
|
||||
if isinstance(key, bytes):
|
||||
if len(key) == 7:
|
||||
key = expand_des_key(key)
|
||||
elif len(key) != 8:
|
||||
raise ValueError("key must be 7 or 8 bytes")
|
||||
key = _unpack64(key)
|
||||
else:
|
||||
raise exc.ExpectedTypeError(key, "bytes", "key")
|
||||
|
||||
# validate & unpack input
|
||||
if isinstance(input, bytes):
|
||||
if len(input) != 8:
|
||||
raise ValueError("input block must be 8 bytes")
|
||||
input = _unpack64(input)
|
||||
else:
|
||||
raise exc.ExpectedTypeError(input, "bytes", "input")
|
||||
|
||||
# hand things off to other func
|
||||
result = des_encrypt_int_block(key, input, salt, rounds)
|
||||
|
||||
# repack result
|
||||
return _pack64(result)
|
||||
|
||||
def des_encrypt_int_block(key, input, salt=0, rounds=1):
|
||||
"""encrypt single block of data using DES, operates on 64-bit integers.
|
||||
|
||||
this function is essentially the same as :func:`des_encrypt_block`,
|
||||
except that it operates on integers, and will NOT automatically
|
||||
expand 56-bit keys if provided (since there's no way to detect them).
|
||||
|
||||
:arg key:
|
||||
DES key as 64-bit integer (the parity bits are ignored).
|
||||
|
||||
:arg input:
|
||||
input block as 64-bit integer
|
||||
|
||||
:arg salt:
|
||||
optional 24-bit integer used to mutate the base DES algorithm.
|
||||
defaults to ``0`` (no mutation applied).
|
||||
|
||||
:arg rounds:
|
||||
optional number of rounds of to apply the DES key schedule.
|
||||
defaults to ``1``.
|
||||
|
||||
:raises TypeError: if any of the provided args are of the wrong type.
|
||||
:raises ValueError:
|
||||
if any of the input blocks are the wrong size,
|
||||
or the salt/rounds values are out of range.
|
||||
|
||||
:returns:
|
||||
resulting ciphertext as 64-bit integer.
|
||||
"""
|
||||
#---------------------------------------------------------------
|
||||
# input validation
|
||||
#---------------------------------------------------------------
|
||||
|
||||
# validate salt, rounds
|
||||
if rounds < 1:
|
||||
raise ValueError("rounds must be positive integer")
|
||||
if salt < 0 or salt > INT_24_MASK:
|
||||
raise ValueError("salt must be 24-bit non-negative integer")
|
||||
|
||||
# validate & unpack key
|
||||
if not isinstance(key, int_types):
|
||||
raise exc.ExpectedTypeError(key, "int", "key")
|
||||
elif key < 0 or key > INT_64_MASK:
|
||||
raise ValueError("key must be 64-bit non-negative integer")
|
||||
|
||||
# validate & unpack input
|
||||
if not isinstance(input, int_types):
|
||||
raise exc.ExpectedTypeError(input, "int", "input")
|
||||
elif input < 0 or input > INT_64_MASK:
|
||||
raise ValueError("input must be 64-bit non-negative integer")
|
||||
|
||||
#---------------------------------------------------------------
|
||||
# DES setup
|
||||
#---------------------------------------------------------------
|
||||
# load tables if not already done
|
||||
global SPE, PCXROT, IE3264, CF6464
|
||||
if PCXROT is None:
|
||||
_load_tables()
|
||||
|
||||
# load SPE into local vars to speed things up and remove an array access call
|
||||
SPE0, SPE1, SPE2, SPE3, SPE4, SPE5, SPE6, SPE7 = SPE
|
||||
|
||||
# NOTE: parity bits are ignored completely
|
||||
# (UTs do fuzz testing to ensure this)
|
||||
|
||||
# generate key schedule
|
||||
# NOTE: generation was modified to output two elements at a time,
|
||||
# so that per-round loop could do two passes at once.
|
||||
def _iter_key_schedule(ks_odd):
|
||||
"""given 64-bit key, iterates over the 8 (even,odd) key schedule pairs"""
|
||||
for p_even, p_odd in PCXROT:
|
||||
ks_even = _permute(ks_odd, p_even)
|
||||
ks_odd = _permute(ks_even, p_odd)
|
||||
yield ks_even & _KS_MASK, ks_odd & _KS_MASK
|
||||
ks_list = list(_iter_key_schedule(key))
|
||||
|
||||
# expand 24 bit salt -> 32 bit per des_crypt & bsdi_crypt
|
||||
salt = (
|
||||
((salt & 0x00003f) << 26) |
|
||||
((salt & 0x000fc0) << 12) |
|
||||
((salt & 0x03f000) >> 2) |
|
||||
((salt & 0xfc0000) >> 16)
|
||||
)
|
||||
|
||||
# init L & R
|
||||
if input == 0:
|
||||
L = R = 0
|
||||
else:
|
||||
L = ((input >> 31) & 0xaaaaaaaa) | (input & 0x55555555)
|
||||
L = _permute(L, IE3264)
|
||||
|
||||
R = ((input >> 32) & 0xaaaaaaaa) | ((input >> 1) & 0x55555555)
|
||||
R = _permute(R, IE3264)
|
||||
|
||||
#---------------------------------------------------------------
|
||||
# main DES loop - run for specified number of rounds
|
||||
#---------------------------------------------------------------
|
||||
while rounds:
|
||||
rounds -= 1
|
||||
|
||||
# run over each part of the schedule, 2 parts at a time
|
||||
for ks_even, ks_odd in ks_list:
|
||||
k = ((R>>32) ^ R) & salt # use the salt to flip specific bits
|
||||
B = (k<<32) ^ k ^ R ^ ks_even
|
||||
|
||||
L ^= (SPE0[(B>>58)&0x3f] ^ SPE1[(B>>50)&0x3f] ^
|
||||
SPE2[(B>>42)&0x3f] ^ SPE3[(B>>34)&0x3f] ^
|
||||
SPE4[(B>>26)&0x3f] ^ SPE5[(B>>18)&0x3f] ^
|
||||
SPE6[(B>>10)&0x3f] ^ SPE7[(B>>2)&0x3f])
|
||||
|
||||
k = ((L>>32) ^ L) & salt # use the salt to flip specific bits
|
||||
B = (k<<32) ^ k ^ L ^ ks_odd
|
||||
|
||||
R ^= (SPE0[(B>>58)&0x3f] ^ SPE1[(B>>50)&0x3f] ^
|
||||
SPE2[(B>>42)&0x3f] ^ SPE3[(B>>34)&0x3f] ^
|
||||
SPE4[(B>>26)&0x3f] ^ SPE5[(B>>18)&0x3f] ^
|
||||
SPE6[(B>>10)&0x3f] ^ SPE7[(B>>2)&0x3f])
|
||||
|
||||
# swap L and R
|
||||
L, R = R, L
|
||||
|
||||
#---------------------------------------------------------------
|
||||
# return final result
|
||||
#---------------------------------------------------------------
|
||||
C = (
|
||||
((L>>3) & 0x0f0f0f0f00000000)
|
||||
|
|
||||
((L<<33) & 0xf0f0f0f000000000)
|
||||
|
|
||||
((R>>35) & 0x000000000f0f0f0f)
|
||||
|
|
||||
((R<<1) & 0x00000000f0f0f0f0)
|
||||
)
|
||||
return _permute(C, CF6464)
|
||||
|
||||
@deprecated_function(deprecated="1.6", removed="1.8",
|
||||
replacement="des_encrypt_int_block()")
|
||||
def mdes_encrypt_int_block(key, input, salt=0, rounds=1): # pragma: no cover -- deprecated & unused
|
||||
if isinstance(key, bytes):
|
||||
if len(key) == 7:
|
||||
key = expand_des_key(key)
|
||||
key = _unpack64(key)
|
||||
return des_encrypt_int_block(key, input, salt, rounds)
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
1667
src/passlib/utils/handlers.py
Normal file
1667
src/passlib/utils/handlers.py
Normal file
File diff suppressed because it is too large
Load Diff
266
src/passlib/utils/md4.py
Normal file
266
src/passlib/utils/md4.py
Normal file
@@ -0,0 +1,266 @@
|
||||
"""
|
||||
helper implementing insecure and obsolete md4 algorithm.
|
||||
used for NTHASH format, which is also insecure and broken,
|
||||
since it's just md4(password)
|
||||
|
||||
implementated based on rfc at http://www.faqs.org/rfcs/rfc1320.html
|
||||
|
||||
"""
|
||||
|
||||
#=============================================================================
|
||||
# imports
|
||||
#=============================================================================
|
||||
# core
|
||||
from binascii import hexlify
|
||||
import struct
|
||||
from warnings import warn
|
||||
# site
|
||||
from passlib.utils.compat import b, bytes, bascii_to_str, irange, PY3
|
||||
# local
|
||||
__all__ = [ "md4" ]
|
||||
#=============================================================================
|
||||
# utils
|
||||
#=============================================================================
|
||||
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
|
||||
|
||||
MASK_32 = 2**32-1
|
||||
|
||||
#=============================================================================
|
||||
# main class
|
||||
#=============================================================================
|
||||
class md4(object):
|
||||
"""pep-247 compatible implementation of MD4 hash algorithm
|
||||
|
||||
.. attribute:: digest_size
|
||||
|
||||
size of md4 digest in bytes (16 bytes)
|
||||
|
||||
.. method:: update
|
||||
|
||||
update digest by appending additional content
|
||||
|
||||
.. method:: copy
|
||||
|
||||
create clone of digest object, including current state
|
||||
|
||||
.. method:: digest
|
||||
|
||||
return bytes representing md4 digest of current content
|
||||
|
||||
.. method:: hexdigest
|
||||
|
||||
return hexadecimal version of digest
|
||||
"""
|
||||
# FIXME: make this follow hash object PEP better.
|
||||
# FIXME: this isn't threadsafe
|
||||
# XXX: should we monkeypatch ourselves into hashlib for general use? probably wouldn't be nice.
|
||||
|
||||
name = "md4"
|
||||
digest_size = digestsize = 16
|
||||
|
||||
_count = 0 # number of 64-byte blocks processed so far (not including _buf)
|
||||
_state = None # list of [a,b,c,d] 32 bit ints used as internal register
|
||||
_buf = None # data processed in 64 byte blocks, this holds leftover from last update
|
||||
|
||||
def __init__(self, content=None):
|
||||
self._count = 0
|
||||
self._state = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476]
|
||||
self._buf = b('')
|
||||
if content:
|
||||
self.update(content)
|
||||
|
||||
# round 1 table - [abcd k s]
|
||||
_round1 = [
|
||||
[0,1,2,3, 0,3],
|
||||
[3,0,1,2, 1,7],
|
||||
[2,3,0,1, 2,11],
|
||||
[1,2,3,0, 3,19],
|
||||
|
||||
[0,1,2,3, 4,3],
|
||||
[3,0,1,2, 5,7],
|
||||
[2,3,0,1, 6,11],
|
||||
[1,2,3,0, 7,19],
|
||||
|
||||
[0,1,2,3, 8,3],
|
||||
[3,0,1,2, 9,7],
|
||||
[2,3,0,1, 10,11],
|
||||
[1,2,3,0, 11,19],
|
||||
|
||||
[0,1,2,3, 12,3],
|
||||
[3,0,1,2, 13,7],
|
||||
[2,3,0,1, 14,11],
|
||||
[1,2,3,0, 15,19],
|
||||
]
|
||||
|
||||
# round 2 table - [abcd k s]
|
||||
_round2 = [
|
||||
[0,1,2,3, 0,3],
|
||||
[3,0,1,2, 4,5],
|
||||
[2,3,0,1, 8,9],
|
||||
[1,2,3,0, 12,13],
|
||||
|
||||
[0,1,2,3, 1,3],
|
||||
[3,0,1,2, 5,5],
|
||||
[2,3,0,1, 9,9],
|
||||
[1,2,3,0, 13,13],
|
||||
|
||||
[0,1,2,3, 2,3],
|
||||
[3,0,1,2, 6,5],
|
||||
[2,3,0,1, 10,9],
|
||||
[1,2,3,0, 14,13],
|
||||
|
||||
[0,1,2,3, 3,3],
|
||||
[3,0,1,2, 7,5],
|
||||
[2,3,0,1, 11,9],
|
||||
[1,2,3,0, 15,13],
|
||||
]
|
||||
|
||||
# round 3 table - [abcd k s]
|
||||
_round3 = [
|
||||
[0,1,2,3, 0,3],
|
||||
[3,0,1,2, 8,9],
|
||||
[2,3,0,1, 4,11],
|
||||
[1,2,3,0, 12,15],
|
||||
|
||||
[0,1,2,3, 2,3],
|
||||
[3,0,1,2, 10,9],
|
||||
[2,3,0,1, 6,11],
|
||||
[1,2,3,0, 14,15],
|
||||
|
||||
[0,1,2,3, 1,3],
|
||||
[3,0,1,2, 9,9],
|
||||
[2,3,0,1, 5,11],
|
||||
[1,2,3,0, 13,15],
|
||||
|
||||
[0,1,2,3, 3,3],
|
||||
[3,0,1,2, 11,9],
|
||||
[2,3,0,1, 7,11],
|
||||
[1,2,3,0, 15,15],
|
||||
]
|
||||
|
||||
def _process(self, block):
|
||||
"""process 64 byte block"""
|
||||
# unpack block into 16 32-bit ints
|
||||
X = struct.unpack("<16I", block)
|
||||
|
||||
# clone state
|
||||
orig = self._state
|
||||
state = list(orig)
|
||||
|
||||
# round 1 - F function - (x&y)|(~x & z)
|
||||
for a,b,c,d,k,s in self._round1:
|
||||
t = (state[a] + F(state[b],state[c],state[d]) + X[k]) & MASK_32
|
||||
state[a] = ((t<<s) & MASK_32) + (t>>(32-s))
|
||||
|
||||
# round 2 - G function
|
||||
for a,b,c,d,k,s in self._round2:
|
||||
t = (state[a] + G(state[b],state[c],state[d]) + X[k] + 0x5a827999) & MASK_32
|
||||
state[a] = ((t<<s) & MASK_32) + (t>>(32-s))
|
||||
|
||||
# round 3 - H function - x ^ y ^ z
|
||||
for a,b,c,d,k,s in self._round3:
|
||||
t = (state[a] + (state[b] ^ state[c] ^ state[d]) + X[k] + 0x6ed9eba1) & MASK_32
|
||||
state[a] = ((t<<s) & MASK_32) + (t>>(32-s))
|
||||
|
||||
# add back into original state
|
||||
for i in irange(4):
|
||||
orig[i] = (orig[i]+state[i]) & MASK_32
|
||||
|
||||
def update(self, content):
|
||||
if not isinstance(content, bytes):
|
||||
raise TypeError("expected bytes")
|
||||
buf = self._buf
|
||||
if buf:
|
||||
content = buf + content
|
||||
idx = 0
|
||||
end = len(content)
|
||||
while True:
|
||||
next = idx + 64
|
||||
if next <= end:
|
||||
self._process(content[idx:next])
|
||||
self._count += 1
|
||||
idx = next
|
||||
else:
|
||||
self._buf = content[idx:]
|
||||
return
|
||||
|
||||
def copy(self):
|
||||
other = _builtin_md4()
|
||||
other._count = self._count
|
||||
other._state = list(self._state)
|
||||
other._buf = self._buf
|
||||
return other
|
||||
|
||||
def digest(self):
|
||||
# NOTE: backing up state so we can restore it after _process is called,
|
||||
# in case object is updated again (this is only attr altered by this method)
|
||||
orig = list(self._state)
|
||||
|
||||
# final block: buf + 0x80,
|
||||
# then 0x00 padding until congruent w/ 56 mod 64 bytes
|
||||
# then last 8 bytes = msg length in bits
|
||||
buf = self._buf
|
||||
msglen = self._count*512 + len(buf)*8
|
||||
block = buf + b('\x80') + b('\x00') * ((119-len(buf)) % 64) + \
|
||||
struct.pack("<2I", msglen & MASK_32, (msglen>>32) & MASK_32)
|
||||
if len(block) == 128:
|
||||
self._process(block[:64])
|
||||
self._process(block[64:])
|
||||
else:
|
||||
assert len(block) == 64
|
||||
self._process(block)
|
||||
|
||||
# render digest & restore un-finalized state
|
||||
out = struct.pack("<4I", *self._state)
|
||||
self._state = orig
|
||||
return out
|
||||
|
||||
def hexdigest(self):
|
||||
return bascii_to_str(hexlify(self.digest()))
|
||||
|
||||
#===================================================================
|
||||
# eoc
|
||||
#===================================================================
|
||||
|
||||
# keep ref around for unittest, 'md4' usually replaced by ssl wrapper, below.
|
||||
_builtin_md4 = md4
|
||||
|
||||
#=============================================================================
|
||||
# check if hashlib provides accelarated md4
|
||||
#=============================================================================
|
||||
import hashlib
|
||||
from passlib.utils import PYPY
|
||||
|
||||
def _has_native_md4(): # pragma: no cover -- runtime detection
|
||||
try:
|
||||
h = hashlib.new("md4")
|
||||
except ValueError:
|
||||
# not supported - ssl probably missing (e.g. ironpython)
|
||||
return False
|
||||
result = h.hexdigest()
|
||||
if result == '31d6cfe0d16ae931b73c59d7e0c089c0':
|
||||
return True
|
||||
if PYPY and result == '':
|
||||
# workaround for https://bugs.pypy.org/issue957, fixed in PyPy 1.8
|
||||
return False
|
||||
# anything else and we should alert user
|
||||
from passlib.exc import PasslibRuntimeWarning
|
||||
warn("native md4 support disabled, sanity check failed!", PasslibRuntimeWarning)
|
||||
return False
|
||||
|
||||
if _has_native_md4():
|
||||
# overwrite md4 class w/ hashlib wrapper
|
||||
def md4(content=None):
|
||||
"""wrapper for hashlib.new('md4')"""
|
||||
return hashlib.new('md4', content or b(''))
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
415
src/passlib/utils/pbkdf2.py
Normal file
415
src/passlib/utils/pbkdf2.py
Normal file
@@ -0,0 +1,415 @@
|
||||
"""passlib.pbkdf2 - PBKDF2 support
|
||||
|
||||
this module is getting increasingly poorly named.
|
||||
maybe rename to "kdf" since it's getting more key derivation functions added.
|
||||
"""
|
||||
#=============================================================================
|
||||
# imports
|
||||
#=============================================================================
|
||||
# core
|
||||
import hashlib
|
||||
import logging; log = logging.getLogger(__name__)
|
||||
import re
|
||||
from struct import pack
|
||||
from warnings import warn
|
||||
# site
|
||||
try:
|
||||
from M2Crypto import EVP as _EVP
|
||||
except ImportError:
|
||||
_EVP = None
|
||||
# pkg
|
||||
from passlib.exc import PasslibRuntimeWarning, ExpectedTypeError
|
||||
from passlib.utils import join_bytes, to_native_str, bytes_to_int, int_to_bytes, join_byte_values
|
||||
from passlib.utils.compat import b, bytes, BytesIO, irange, callable, int_types
|
||||
# local
|
||||
__all__ = [
|
||||
"get_prf",
|
||||
"pbkdf1",
|
||||
"pbkdf2",
|
||||
]
|
||||
|
||||
#=============================================================================
|
||||
# hash helpers
|
||||
#=============================================================================
|
||||
|
||||
# known hash names
|
||||
_nhn_formats = dict(hashlib=0, iana=1)
|
||||
_nhn_hash_names = [
|
||||
# (hashlib/ssl name, iana name or standin, ... other known aliases)
|
||||
|
||||
# hashes with official IANA-assigned names
|
||||
# (as of 2012-03 - http://www.iana.org/assignments/hash-function-text-names)
|
||||
("md2", "md2"),
|
||||
("md5", "md5"),
|
||||
("sha1", "sha-1"),
|
||||
("sha224", "sha-224", "sha2-224"),
|
||||
("sha256", "sha-256", "sha2-256"),
|
||||
("sha384", "sha-384", "sha2-384"),
|
||||
("sha512", "sha-512", "sha2-512"),
|
||||
|
||||
# hashlib/ssl-supported hashes without official IANA names,
|
||||
# hopefully compatible stand-ins have been chosen.
|
||||
("md4", "md4"),
|
||||
("sha", "sha-0", "sha0"),
|
||||
("ripemd", "ripemd"),
|
||||
("ripemd160", "ripemd-160"),
|
||||
]
|
||||
|
||||
# cache for norm_hash_name()
|
||||
_nhn_cache = {}
|
||||
|
||||
def norm_hash_name(name, format="hashlib"):
|
||||
"""Normalize hash function name
|
||||
|
||||
:arg name:
|
||||
Original hash function name.
|
||||
|
||||
This name can be a Python :mod:`~hashlib` digest name,
|
||||
a SCRAM mechanism name, IANA assigned hash name, etc.
|
||||
Case is ignored, and underscores are converted to hyphens.
|
||||
|
||||
:param format:
|
||||
Naming convention to normalize to.
|
||||
Possible values are:
|
||||
|
||||
* ``"hashlib"`` (the default) - normalizes name to be compatible
|
||||
with Python's :mod:`!hashlib`.
|
||||
|
||||
* ``"iana"`` - normalizes name to IANA-assigned hash function name.
|
||||
for hashes which IANA hasn't assigned a name for, issues a warning,
|
||||
and then uses a heuristic to give a "best guess".
|
||||
|
||||
:returns:
|
||||
Hash name, returned as native :class:`!str`.
|
||||
"""
|
||||
# check cache
|
||||
try:
|
||||
idx = _nhn_formats[format]
|
||||
except KeyError:
|
||||
raise ValueError("unknown format: %r" % (format,))
|
||||
try:
|
||||
return _nhn_cache[name][idx]
|
||||
except KeyError:
|
||||
pass
|
||||
orig = name
|
||||
|
||||
# normalize input
|
||||
if not isinstance(name, str):
|
||||
name = to_native_str(name, 'utf-8', 'hash name')
|
||||
name = re.sub("[_ /]", "-", name.strip().lower())
|
||||
if name.startswith("scram-"):
|
||||
name = name[6:]
|
||||
if name.endswith("-plus"):
|
||||
name = name[:-5]
|
||||
|
||||
# look through standard names and known aliases
|
||||
def check_table(name):
|
||||
for row in _nhn_hash_names:
|
||||
if name in row:
|
||||
_nhn_cache[orig] = row
|
||||
return row[idx]
|
||||
result = check_table(name)
|
||||
if result:
|
||||
return result
|
||||
|
||||
# try to clean name up, and recheck table
|
||||
m = re.match("^(?P<name>[a-z]+)-?(?P<rev>\d)?-?(?P<size>\d{3,4})?$", name)
|
||||
if m:
|
||||
name, rev, size = m.group("name", "rev", "size")
|
||||
if rev:
|
||||
name += rev
|
||||
if size:
|
||||
name += "-" + size
|
||||
result = check_table(name)
|
||||
if result:
|
||||
return result
|
||||
|
||||
# else we've done what we can
|
||||
warn("norm_hash_name(): unknown hash: %r" % (orig,), PasslibRuntimeWarning)
|
||||
name2 = name.replace("-", "")
|
||||
row = _nhn_cache[orig] = (name2, name)
|
||||
return row[idx]
|
||||
|
||||
# TODO: get_hash() func which wraps norm_hash_name(), hashlib.<attr>, and hashlib.new
|
||||
|
||||
#=============================================================================
|
||||
# general prf lookup
|
||||
#=============================================================================
|
||||
_BNULL = b('\x00')
|
||||
_XY_DIGEST = b(',\x1cb\xe0H\xa5\x82M\xfb>\xd6\x98\xef\x8e\xf9oQ\x85\xa3i')
|
||||
|
||||
_trans_5C = join_byte_values((x ^ 0x5C) for x in irange(256))
|
||||
_trans_36 = join_byte_values((x ^ 0x36) for x in irange(256))
|
||||
|
||||
def _get_hmac_prf(digest):
|
||||
"""helper to return HMAC prf for specific digest"""
|
||||
def tag_wrapper(prf):
|
||||
prf.__name__ = "hmac_" + digest
|
||||
prf.__doc__ = ("hmac_%s(key, msg) -> digest;"
|
||||
" generated by passlib.utils.pbkdf2.get_prf()" %
|
||||
digest)
|
||||
|
||||
if _EVP and digest == "sha1":
|
||||
# use m2crypto function directly for sha1, since that's its default digest
|
||||
try:
|
||||
result = _EVP.hmac(b('x'),b('y'))
|
||||
except ValueError: # pragma: no cover
|
||||
pass
|
||||
else:
|
||||
if result == _XY_DIGEST:
|
||||
return _EVP.hmac, 20
|
||||
# don't expect to ever get here, but will fall back to pure-python if we do.
|
||||
warn("M2Crypto.EVP.HMAC() returned unexpected result " # pragma: no cover -- sanity check
|
||||
"during Passlib self-test!", PasslibRuntimeWarning)
|
||||
elif _EVP:
|
||||
# use m2crypto if it's present and supports requested digest
|
||||
try:
|
||||
result = _EVP.hmac(b('x'), b('y'), digest)
|
||||
except ValueError:
|
||||
pass
|
||||
else:
|
||||
# it does. so use M2Crypto's hmac & digest code
|
||||
hmac_const = _EVP.hmac
|
||||
def prf(key, msg):
|
||||
return hmac_const(key, msg, digest)
|
||||
digest_size = len(result)
|
||||
tag_wrapper(prf)
|
||||
return prf, digest_size
|
||||
|
||||
# fall back to hashlib-based implementation
|
||||
digest_const = getattr(hashlib, digest, None)
|
||||
if not digest_const:
|
||||
raise ValueError("unknown hash algorithm: %r" % (digest,))
|
||||
tmp = digest_const()
|
||||
block_size = tmp.block_size
|
||||
assert block_size >= 16, "unacceptably low block size"
|
||||
digest_size = tmp.digest_size
|
||||
del tmp
|
||||
def prf(key, msg):
|
||||
# simplified version of stdlib's hmac module
|
||||
if len(key) > block_size:
|
||||
key = digest_const(key).digest()
|
||||
key += _BNULL * (block_size - len(key))
|
||||
tmp = digest_const(key.translate(_trans_36) + msg).digest()
|
||||
return digest_const(key.translate(_trans_5C) + tmp).digest()
|
||||
tag_wrapper(prf)
|
||||
return prf, digest_size
|
||||
|
||||
# cache mapping prf name/func -> (func, digest_size)
|
||||
_prf_cache = {}
|
||||
|
||||
def _clear_prf_cache():
|
||||
"""helper for unit tests"""
|
||||
_prf_cache.clear()
|
||||
|
||||
def get_prf(name):
|
||||
"""lookup pseudo-random family (prf) by name.
|
||||
|
||||
:arg name:
|
||||
this must be the name of a recognized prf.
|
||||
currently this only recognizes names with the format
|
||||
:samp:`hmac-{digest}`, where :samp:`{digest}`
|
||||
is the name of a hash function such as
|
||||
``md5``, ``sha256``, etc.
|
||||
|
||||
this can also be a callable with the signature
|
||||
``prf(secret, message) -> digest``,
|
||||
in which case it will be returned unchanged.
|
||||
|
||||
:raises ValueError: if the name is not known
|
||||
:raises TypeError: if the name is not a callable or string
|
||||
|
||||
:returns:
|
||||
a tuple of :samp:`({func}, {digest_size})`.
|
||||
|
||||
* :samp:`{func}` is a function implementing
|
||||
the specified prf, and has the signature
|
||||
``func(secret, message) -> digest``.
|
||||
|
||||
* :samp:`{digest_size}` is an integer indicating
|
||||
the number of bytes the function returns.
|
||||
|
||||
usage example::
|
||||
|
||||
>>> from passlib.utils.pbkdf2 import get_prf
|
||||
>>> hmac_sha256, dsize = get_prf("hmac-sha256")
|
||||
>>> hmac_sha256
|
||||
<function hmac_sha256 at 0x1e37c80>
|
||||
>>> dsize
|
||||
32
|
||||
>>> digest = hmac_sha256('password', 'message')
|
||||
|
||||
this function will attempt to return the fastest implementation
|
||||
it can find; if M2Crypto is present, and supports the specified prf,
|
||||
:func:`M2Crypto.EVP.hmac` will be used behind the scenes.
|
||||
"""
|
||||
global _prf_cache
|
||||
if name in _prf_cache:
|
||||
return _prf_cache[name]
|
||||
if isinstance(name, str):
|
||||
if name.startswith("hmac-") or name.startswith("hmac_"):
|
||||
retval = _get_hmac_prf(name[5:])
|
||||
else:
|
||||
raise ValueError("unknown prf algorithm: %r" % (name,))
|
||||
elif callable(name):
|
||||
# assume it's a callable, use it directly
|
||||
digest_size = len(name(b('x'),b('y')))
|
||||
retval = (name, digest_size)
|
||||
else:
|
||||
raise ExpectedTypeError(name, "str or callable", "prf name")
|
||||
_prf_cache[name] = retval
|
||||
return retval
|
||||
|
||||
#=============================================================================
|
||||
# pbkdf1 support
|
||||
#=============================================================================
|
||||
def pbkdf1(secret, salt, rounds, keylen=None, hash="sha1"):
|
||||
"""pkcs#5 password-based key derivation v1.5
|
||||
|
||||
:arg secret: passphrase to use to generate key
|
||||
:arg salt: salt string to use when generating key
|
||||
:param rounds: number of rounds to use to generate key
|
||||
:arg keylen: number of bytes to generate (if ``None``, uses digest's native size)
|
||||
:param hash:
|
||||
hash function to use. must be name of a hash recognized by hashlib.
|
||||
|
||||
:returns:
|
||||
raw bytes of generated key
|
||||
|
||||
.. note::
|
||||
|
||||
This algorithm has been deprecated, new code should use PBKDF2.
|
||||
Among other limitations, ``keylen`` cannot be larger
|
||||
than the digest size of the specified hash.
|
||||
|
||||
"""
|
||||
# validate secret & salt
|
||||
if not isinstance(secret, bytes):
|
||||
raise ExpectedTypeError(secret, "bytes", "secret")
|
||||
if not isinstance(salt, bytes):
|
||||
raise ExpectedTypeError(salt, "bytes", "salt")
|
||||
|
||||
# validate rounds
|
||||
if not isinstance(rounds, int_types):
|
||||
raise ExpectedTypeError(rounds, "int", "rounds")
|
||||
if rounds < 1:
|
||||
raise ValueError("rounds must be at least 1")
|
||||
|
||||
# resolve hash
|
||||
try:
|
||||
hash_const = getattr(hashlib, hash)
|
||||
except AttributeError:
|
||||
# check for ssl hash
|
||||
# NOTE: if hash unknown, new() will throw ValueError, which we'd just
|
||||
# reraise anyways; so instead of checking, we just let it get
|
||||
# thrown during first use, below
|
||||
# TODO: use builtin md4 class if hashlib doesn't have it.
|
||||
def hash_const(msg):
|
||||
return hashlib.new(hash, msg)
|
||||
|
||||
# prime pbkdf1 loop, get block size
|
||||
block = hash_const(secret + salt).digest()
|
||||
|
||||
# validate keylen
|
||||
if keylen is None:
|
||||
keylen = len(block)
|
||||
elif not isinstance(keylen, int_types):
|
||||
raise ExpectedTypeError(keylen, "int or None", "keylen")
|
||||
elif keylen < 0:
|
||||
raise ValueError("keylen must be at least 0")
|
||||
elif keylen > len(block):
|
||||
raise ValueError("keylength too large for digest: %r > %r" %
|
||||
(keylen, len(block)))
|
||||
|
||||
# main pbkdf1 loop
|
||||
for _ in irange(rounds-1):
|
||||
block = hash_const(block).digest()
|
||||
return block[:keylen]
|
||||
|
||||
#=============================================================================
|
||||
# pbkdf2
|
||||
#=============================================================================
|
||||
MAX_BLOCKS = 0xffffffff # 2**32-1
|
||||
MAX_HMAC_SHA1_KEYLEN = MAX_BLOCKS*20
|
||||
# NOTE: the pbkdf2 spec does not specify a maximum number of rounds.
|
||||
# however, many of the hashes in passlib are currently clamped
|
||||
# at the 32-bit limit, just for sanity. once realistic pbkdf2 rounds
|
||||
# start approaching 24 bits, this limit will be raised.
|
||||
|
||||
def pbkdf2(secret, salt, rounds, keylen=None, prf="hmac-sha1"):
|
||||
"""pkcs#5 password-based key derivation v2.0
|
||||
|
||||
:arg secret: passphrase to use to generate key
|
||||
:arg salt: salt string to use when generating key
|
||||
:param rounds: number of rounds to use to generate key
|
||||
:arg keylen:
|
||||
number of bytes to generate.
|
||||
if set to ``None``, will use digest size of selected prf.
|
||||
:param prf:
|
||||
psuedo-random family to use for key strengthening.
|
||||
this can be any string or callable accepted by :func:`get_prf`.
|
||||
this defaults to ``"hmac-sha1"`` (the only prf explicitly listed in
|
||||
the PBKDF2 specification)
|
||||
|
||||
:returns:
|
||||
raw bytes of generated key
|
||||
"""
|
||||
# validate secret & salt
|
||||
if not isinstance(secret, bytes):
|
||||
raise ExpectedTypeError(secret, "bytes", "secret")
|
||||
if not isinstance(salt, bytes):
|
||||
raise ExpectedTypeError(salt, "bytes", "salt")
|
||||
|
||||
# validate rounds
|
||||
if not isinstance(rounds, int_types):
|
||||
raise ExpectedTypeError(rounds, "int", "rounds")
|
||||
if rounds < 1:
|
||||
raise ValueError("rounds must be at least 1")
|
||||
|
||||
# validate keylen
|
||||
if keylen is not None:
|
||||
if not isinstance(keylen, int_types):
|
||||
raise ExpectedTypeError(keylen, "int or None", "keylen")
|
||||
elif keylen < 0:
|
||||
raise ValueError("keylen must be at least 0")
|
||||
|
||||
# special case for m2crypto + hmac-sha1
|
||||
if prf == "hmac-sha1" and _EVP:
|
||||
if keylen is None:
|
||||
keylen = 20
|
||||
# NOTE: doing check here, because M2crypto won't take 'long' instances
|
||||
# (which this is when running under 32bit)
|
||||
if keylen > MAX_HMAC_SHA1_KEYLEN:
|
||||
raise ValueError("key length too long for digest")
|
||||
|
||||
# NOTE: as of 2012-4-4, m2crypto has buffer overflow issue
|
||||
# which may cause segfaults if keylen > 32 (EVP_MAX_KEY_LENGTH).
|
||||
# therefore we're avoiding m2crypto for large keys until that's fixed.
|
||||
# see https://bugzilla.osafoundation.org/show_bug.cgi?id=13052
|
||||
if keylen < 32:
|
||||
return _EVP.pbkdf2(secret, salt, rounds, keylen)
|
||||
|
||||
# resolve prf
|
||||
prf_func, digest_size = get_prf(prf)
|
||||
if keylen is None:
|
||||
keylen = digest_size
|
||||
|
||||
# figure out how many blocks we'll need
|
||||
block_count = (keylen+digest_size-1)//digest_size
|
||||
if block_count >= MAX_BLOCKS:
|
||||
raise ValueError("key length too long for digest")
|
||||
|
||||
# build up result from blocks
|
||||
def gen():
|
||||
for i in irange(block_count):
|
||||
digest = prf_func(secret, salt + pack(">L", i+1))
|
||||
accum = bytes_to_int(digest)
|
||||
for _ in irange(rounds-1):
|
||||
digest = prf_func(secret, digest)
|
||||
accum ^= bytes_to_int(digest)
|
||||
yield int_to_bytes(accum, digest_size)
|
||||
return join_bytes(gen())[:keylen]
|
||||
|
||||
#=============================================================================
|
||||
# eof
|
||||
#=============================================================================
|
||||
Reference in New Issue
Block a user