Fix Mega
Rimosso pyaes Rimosso Crypto
This commit is contained in:
Alhaziel01
@@ -1,115 +0,0 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# Cipher/AES.py : AES
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
"""AES symmetric cipher
|
||||
|
||||
AES `(Advanced Encryption Standard)`__ is a symmetric block cipher standardized
|
||||
by NIST_ . It has a fixed data block size of 16 bytes.
|
||||
Its keys can be 128, 192, or 256 bits long.
|
||||
|
||||
AES is very fast and secure, and it is the de facto standard for symmetric
|
||||
encryption.
|
||||
|
||||
As an example, encryption can be done as follows:
|
||||
|
||||
>>> from Crypto.Cipher import AES
|
||||
>>> from Crypto import Random
|
||||
>>>
|
||||
>>> key = b'Sixteen byte key'
|
||||
>>> iv = Random.new().read(AES.block_size)
|
||||
>>> cipher = AES.new(key, AES.MODE_CFB, iv)
|
||||
>>> msg = iv + cipher.encrypt(b'Attack at dawn')
|
||||
|
||||
.. __: http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
|
||||
.. _NIST: http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
|
||||
|
||||
:undocumented: __revision__, __package__
|
||||
"""
|
||||
|
||||
__revision__ = "$Id$"
|
||||
|
||||
from Crypto.Cipher import blockalgo
|
||||
from Crypto.Cipher import _AES
|
||||
|
||||
class AESCipher (blockalgo.BlockAlgo):
|
||||
"""AES cipher object"""
|
||||
|
||||
def __init__(self, key, *args, **kwargs):
|
||||
"""Initialize an AES cipher object
|
||||
|
||||
See also `new()` at the module level."""
|
||||
blockalgo.BlockAlgo.__init__(self, _AES, key, *args, **kwargs)
|
||||
|
||||
def new(key, *args, **kwargs):
|
||||
"""Create a new AES cipher
|
||||
|
||||
:Parameters:
|
||||
key : byte string
|
||||
The secret key to use in the symmetric cipher.
|
||||
It must be 16 (*AES-128*), 24 (*AES-192*), or 32 (*AES-256*) bytes long.
|
||||
:Keywords:
|
||||
mode : a *MODE_** constant
|
||||
The chaining mode to use for encryption or decryption.
|
||||
Default is `MODE_ECB`.
|
||||
IV : byte string
|
||||
The initialization vector to use for encryption or decryption.
|
||||
|
||||
It is ignored for `MODE_ECB` and `MODE_CTR`.
|
||||
|
||||
For `MODE_OPENPGP`, IV must be `block_size` bytes long for encryption
|
||||
and `block_size` +2 bytes for decryption (in the latter case, it is
|
||||
actually the *encrypted* IV which was prefixed to the ciphertext).
|
||||
It is mandatory.
|
||||
|
||||
For all other modes, it must be `block_size` bytes longs. It is optional and
|
||||
when not present it will be given a default value of all zeroes.
|
||||
counter : callable
|
||||
(*Only* `MODE_CTR`). A stateful function that returns the next
|
||||
*counter block*, which is a byte string of `block_size` bytes.
|
||||
For better performance, use `Crypto.Util.Counter`.
|
||||
segment_size : integer
|
||||
(*Only* `MODE_CFB`).The number of bits the plaintext and ciphertext
|
||||
are segmented in.
|
||||
It must be a multiple of 8. If 0 or not specified, it will be assumed to be 8.
|
||||
|
||||
:Return: an `AESCipher` object
|
||||
"""
|
||||
return AESCipher(key, *args, **kwargs)
|
||||
|
||||
#: Electronic Code Book (ECB). See `blockalgo.MODE_ECB`.
|
||||
MODE_ECB = 1
|
||||
#: Cipher-Block Chaining (CBC). See `blockalgo.MODE_CBC`.
|
||||
MODE_CBC = 2
|
||||
#: Cipher FeedBack (CFB). See `blockalgo.MODE_CFB`.
|
||||
MODE_CFB = 3
|
||||
#: This mode should not be used.
|
||||
MODE_PGP = 4
|
||||
#: Output FeedBack (OFB). See `blockalgo.MODE_OFB`.
|
||||
MODE_OFB = 5
|
||||
#: CounTer Mode (CTR). See `blockalgo.MODE_CTR`.
|
||||
MODE_CTR = 6
|
||||
#: OpenPGP Mode. See `blockalgo.MODE_OPENPGP`.
|
||||
MODE_OPENPGP = 7
|
||||
#: Size of a data block (in bytes)
|
||||
block_size = 16
|
||||
#: Size of a key (in bytes)
|
||||
key_size = ( 16, 24, 32 )
|
||||
|
||||
Binary file not shown.
@@ -1,83 +0,0 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
|
||||
"""Symmetric- and asymmetric-key encryption algorithms.
|
||||
|
||||
Encryption algorithms transform plaintext in some way that
|
||||
is dependent on a key or key pair, producing ciphertext.
|
||||
|
||||
Symmetric algorithms
|
||||
--------------------
|
||||
|
||||
Encryption can easily be reversed, if (and, hopefully, only if)
|
||||
one knows the same key.
|
||||
In other words, sender and receiver share the same key.
|
||||
|
||||
The symmetric encryption modules here all support the interface described in PEP
|
||||
272, "API for Block Encryption Algorithms".
|
||||
|
||||
If you don't know which algorithm to choose, use AES because it's
|
||||
standard and has undergone a fair bit of examination.
|
||||
|
||||
======================== ======= ========================
|
||||
Module name Type Description
|
||||
======================== ======= ========================
|
||||
`Crypto.Cipher.AES` Block Advanced Encryption Standard
|
||||
`Crypto.Cipher.ARC2` Block Alleged RC2
|
||||
`Crypto.Cipher.ARC4` Stream Alleged RC4
|
||||
`Crypto.Cipher.Blowfish` Block Blowfish
|
||||
`Crypto.Cipher.CAST` Block CAST
|
||||
`Crypto.Cipher.DES` Block The Data Encryption Standard.
|
||||
Very commonly used in the past,
|
||||
but today its 56-bit keys are too small.
|
||||
`Crypto.Cipher.DES3` Block Triple DES.
|
||||
`Crypto.Cipher.XOR` Stream The simple XOR cipher.
|
||||
======================== ======= ========================
|
||||
|
||||
|
||||
Asymmetric algorithms
|
||||
---------------------
|
||||
|
||||
For asymmetric algorithms, the key to be used for decryption is totally
|
||||
different and cannot be derived in a feasible way from the key used
|
||||
for encryption. Put differently, sender and receiver each own one half
|
||||
of a key pair. The encryption key is often called ``public`` whereas
|
||||
the decryption key is called ``private``.
|
||||
|
||||
========================== =======================
|
||||
Module name Description
|
||||
========================== =======================
|
||||
`Crypto.Cipher.PKCS1_v1_5` PKCS#1 v1.5 encryption, based on RSA key pairs
|
||||
`Crypto.Cipher.PKCS1_OAEP` PKCS#1 OAEP encryption, based on RSA key pairs
|
||||
========================== =======================
|
||||
|
||||
:undocumented: __revision__, __package__, _AES, _ARC2, _ARC4, _Blowfish
|
||||
_CAST, _DES, _DES3, _XOR
|
||||
"""
|
||||
|
||||
__all__ = ['AES', 'ARC2', 'ARC4',
|
||||
'Blowfish', 'CAST', 'DES', 'DES3',
|
||||
'XOR',
|
||||
'PKCS1_v1_5', 'PKCS1_OAEP'
|
||||
]
|
||||
|
||||
__revision__ = "$Id$"
|
||||
|
||||
|
||||
@@ -1,296 +0,0 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# Cipher/blockalgo.py
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
"""Module with definitions common to all block ciphers."""
|
||||
|
||||
import sys
|
||||
if sys.version_info[0] == 2 and sys.version_info[1] == 1:
|
||||
from Crypto.Util.py21compat import *
|
||||
from Crypto.Util.py3compat import *
|
||||
|
||||
#: *Electronic Code Book (ECB)*.
|
||||
#: This is the simplest encryption mode. Each of the plaintext blocks
|
||||
#: is directly encrypted into a ciphertext block, independently of
|
||||
#: any other block. This mode exposes frequency of symbols
|
||||
#: in your plaintext. Other modes (e.g. *CBC*) should be used instead.
|
||||
#:
|
||||
#: See `NIST SP800-38A`_ , Section 6.1 .
|
||||
#:
|
||||
#: .. _`NIST SP800-38A` : http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
|
||||
MODE_ECB = 1
|
||||
|
||||
#: *Cipher-Block Chaining (CBC)*. Each of the ciphertext blocks depends
|
||||
#: on the current and all previous plaintext blocks. An Initialization Vector
|
||||
#: (*IV*) is required.
|
||||
#:
|
||||
#: The *IV* is a data block to be transmitted to the receiver.
|
||||
#: The *IV* can be made public, but it must be authenticated by the receiver and
|
||||
#: it should be picked randomly.
|
||||
#:
|
||||
#: See `NIST SP800-38A`_ , Section 6.2 .
|
||||
#:
|
||||
#: .. _`NIST SP800-38A` : http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
|
||||
MODE_CBC = 2
|
||||
|
||||
#: *Cipher FeedBack (CFB)*. This mode is similar to CBC, but it transforms
|
||||
#: the underlying block cipher into a stream cipher. Plaintext and ciphertext
|
||||
#: are processed in *segments* of **s** bits. The mode is therefore sometimes
|
||||
#: labelled **s**-bit CFB. An Initialization Vector (*IV*) is required.
|
||||
#:
|
||||
#: When encrypting, each ciphertext segment contributes to the encryption of
|
||||
#: the next plaintext segment.
|
||||
#:
|
||||
#: This *IV* is a data block to be transmitted to the receiver.
|
||||
#: The *IV* can be made public, but it should be picked randomly.
|
||||
#: Reusing the same *IV* for encryptions done with the same key lead to
|
||||
#: catastrophic cryptographic failures.
|
||||
#:
|
||||
#: See `NIST SP800-38A`_ , Section 6.3 .
|
||||
#:
|
||||
#: .. _`NIST SP800-38A` : http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
|
||||
MODE_CFB = 3
|
||||
|
||||
#: This mode should not be used.
|
||||
MODE_PGP = 4
|
||||
|
||||
#: *Output FeedBack (OFB)*. This mode is very similar to CBC, but it
|
||||
#: transforms the underlying block cipher into a stream cipher.
|
||||
#: The keystream is the iterated block encryption of an Initialization Vector (*IV*).
|
||||
#:
|
||||
#: The *IV* is a data block to be transmitted to the receiver.
|
||||
#: The *IV* can be made public, but it should be picked randomly.
|
||||
#:
|
||||
#: Reusing the same *IV* for encryptions done with the same key lead to
|
||||
#: catastrophic cryptograhic failures.
|
||||
#:
|
||||
#: See `NIST SP800-38A`_ , Section 6.4 .
|
||||
#:
|
||||
#: .. _`NIST SP800-38A` : http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
|
||||
MODE_OFB = 5
|
||||
|
||||
#: *CounTeR (CTR)*. This mode is very similar to ECB, in that
|
||||
#: encryption of one block is done independently of all other blocks.
|
||||
#: Unlike ECB, the block *position* contributes to the encryption and no
|
||||
#: information leaks about symbol frequency.
|
||||
#:
|
||||
#: Each message block is associated to a *counter* which must be unique
|
||||
#: across all messages that get encrypted with the same key (not just within
|
||||
#: the same message). The counter is as big as the block size.
|
||||
#:
|
||||
#: Counters can be generated in several ways. The most straightword one is
|
||||
#: to choose an *initial counter block* (which can be made public, similarly
|
||||
#: to the *IV* for the other modes) and increment its lowest **m** bits by
|
||||
#: one (modulo *2^m*) for each block. In most cases, **m** is chosen to be half
|
||||
#: the block size.
|
||||
#:
|
||||
#: Reusing the same *initial counter block* for encryptions done with the same
|
||||
#: key lead to catastrophic cryptograhic failures.
|
||||
#:
|
||||
#: See `NIST SP800-38A`_ , Section 6.5 (for the mode) and Appendix B (for how
|
||||
#: to manage the *initial counter block*).
|
||||
#:
|
||||
#: .. _`NIST SP800-38A` : http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
|
||||
MODE_CTR = 6
|
||||
|
||||
#: OpenPGP. This mode is a variant of CFB, and it is only used in PGP and OpenPGP_ applications.
|
||||
#: An Initialization Vector (*IV*) is required.
|
||||
#:
|
||||
#: Unlike CFB, the IV is not transmitted to the receiver. Instead, the *encrypted* IV is.
|
||||
#: The IV is a random data block. Two of its bytes are duplicated to act as a checksum
|
||||
#: for the correctness of the key. The encrypted IV is therefore 2 bytes longer than
|
||||
#: the clean IV.
|
||||
#:
|
||||
#: .. _OpenPGP: http://tools.ietf.org/html/rfc4880
|
||||
MODE_OPENPGP = 7
|
||||
|
||||
def _getParameter(name, index, args, kwargs, default=None):
|
||||
"""Find a parameter in tuple and dictionary arguments a function receives"""
|
||||
param = kwargs.get(name)
|
||||
if len(args)>index:
|
||||
if param:
|
||||
raise ValueError("Parameter '%s' is specified twice" % name)
|
||||
param = args[index]
|
||||
return param or default
|
||||
|
||||
class BlockAlgo:
|
||||
"""Class modelling an abstract block cipher."""
|
||||
|
||||
def __init__(self, factory, key, *args, **kwargs):
|
||||
self.mode = _getParameter('mode', 0, args, kwargs, default=MODE_ECB)
|
||||
self.block_size = factory.block_size
|
||||
|
||||
if self.mode != MODE_OPENPGP:
|
||||
self._cipher = factory.new(key, *args, **kwargs)
|
||||
self.IV = self._cipher.IV
|
||||
else:
|
||||
# OPENPGP mode. For details, see 13.9 in RCC4880.
|
||||
#
|
||||
# A few members are specifically created for this mode:
|
||||
# - _encrypted_iv, set in this constructor
|
||||
# - _done_first_block, set to True after the first encryption
|
||||
# - _done_last_block, set to True after a partial block is processed
|
||||
|
||||
self._done_first_block = False
|
||||
self._done_last_block = False
|
||||
self.IV = _getParameter('iv', 1, args, kwargs)
|
||||
if not self.IV:
|
||||
raise ValueError("MODE_OPENPGP requires an IV")
|
||||
|
||||
# Instantiate a temporary cipher to process the IV
|
||||
IV_cipher = factory.new(key, MODE_CFB,
|
||||
b('\x00')*self.block_size, # IV for CFB
|
||||
segment_size=self.block_size*8)
|
||||
|
||||
# The cipher will be used for...
|
||||
if len(self.IV) == self.block_size:
|
||||
# ... encryption
|
||||
self._encrypted_IV = IV_cipher.encrypt(
|
||||
self.IV + self.IV[-2:] + # Plaintext
|
||||
b('\x00')*(self.block_size-2) # Padding
|
||||
)[:self.block_size+2]
|
||||
elif len(self.IV) == self.block_size+2:
|
||||
# ... decryption
|
||||
self._encrypted_IV = self.IV
|
||||
self.IV = IV_cipher.decrypt(self.IV + # Ciphertext
|
||||
b('\x00')*(self.block_size-2) # Padding
|
||||
)[:self.block_size+2]
|
||||
if self.IV[-2:] != self.IV[-4:-2]:
|
||||
raise ValueError("Failed integrity check for OPENPGP IV")
|
||||
self.IV = self.IV[:-2]
|
||||
else:
|
||||
raise ValueError("Length of IV must be %d or %d bytes for MODE_OPENPGP"
|
||||
% (self.block_size, self.block_size+2))
|
||||
|
||||
# Instantiate the cipher for the real PGP data
|
||||
self._cipher = factory.new(key, MODE_CFB,
|
||||
self._encrypted_IV[-self.block_size:],
|
||||
segment_size=self.block_size*8)
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
"""Encrypt data with the key and the parameters set at initialization.
|
||||
|
||||
The cipher object is stateful; encryption of a long block
|
||||
of data can be broken up in two or more calls to `encrypt()`.
|
||||
That is, the statement:
|
||||
|
||||
>>> c.encrypt(a) + c.encrypt(b)
|
||||
|
||||
is always equivalent to:
|
||||
|
||||
>>> c.encrypt(a+b)
|
||||
|
||||
That also means that you cannot reuse an object for encrypting
|
||||
or decrypting other data with the same key.
|
||||
|
||||
This function does not perform any padding.
|
||||
|
||||
- For `MODE_ECB`, `MODE_CBC`, and `MODE_OFB`, *plaintext* length
|
||||
(in bytes) must be a multiple of *block_size*.
|
||||
|
||||
- For `MODE_CFB`, *plaintext* length (in bytes) must be a multiple
|
||||
of *segment_size*/8.
|
||||
|
||||
- For `MODE_CTR`, *plaintext* can be of any length.
|
||||
|
||||
- For `MODE_OPENPGP`, *plaintext* must be a multiple of *block_size*,
|
||||
unless it is the last chunk of the message.
|
||||
|
||||
:Parameters:
|
||||
plaintext : byte string
|
||||
The piece of data to encrypt.
|
||||
:Return:
|
||||
the encrypted data, as a byte string. It is as long as
|
||||
*plaintext* with one exception: when encrypting the first message
|
||||
chunk with `MODE_OPENPGP`, the encypted IV is prepended to the
|
||||
returned ciphertext.
|
||||
"""
|
||||
|
||||
if self.mode == MODE_OPENPGP:
|
||||
padding_length = (self.block_size - len(plaintext) % self.block_size) % self.block_size
|
||||
if padding_length>0:
|
||||
# CFB mode requires ciphertext to have length multiple of block size,
|
||||
# but PGP mode allows the last block to be shorter
|
||||
if self._done_last_block:
|
||||
raise ValueError("Only the last chunk is allowed to have length not multiple of %d bytes",
|
||||
self.block_size)
|
||||
self._done_last_block = True
|
||||
padded = plaintext + b('\x00')*padding_length
|
||||
res = self._cipher.encrypt(padded)[:len(plaintext)]
|
||||
else:
|
||||
res = self._cipher.encrypt(plaintext)
|
||||
if not self._done_first_block:
|
||||
res = self._encrypted_IV + res
|
||||
self._done_first_block = True
|
||||
return res
|
||||
|
||||
return self._cipher.encrypt(plaintext)
|
||||
|
||||
def decrypt(self, ciphertext):
|
||||
"""Decrypt data with the key and the parameters set at initialization.
|
||||
|
||||
The cipher object is stateful; decryption of a long block
|
||||
of data can be broken up in two or more calls to `decrypt()`.
|
||||
That is, the statement:
|
||||
|
||||
>>> c.decrypt(a) + c.decrypt(b)
|
||||
|
||||
is always equivalent to:
|
||||
|
||||
>>> c.decrypt(a+b)
|
||||
|
||||
That also means that you cannot reuse an object for encrypting
|
||||
or decrypting other data with the same key.
|
||||
|
||||
This function does not perform any padding.
|
||||
|
||||
- For `MODE_ECB`, `MODE_CBC`, and `MODE_OFB`, *ciphertext* length
|
||||
(in bytes) must be a multiple of *block_size*.
|
||||
|
||||
- For `MODE_CFB`, *ciphertext* length (in bytes) must be a multiple
|
||||
of *segment_size*/8.
|
||||
|
||||
- For `MODE_CTR`, *ciphertext* can be of any length.
|
||||
|
||||
- For `MODE_OPENPGP`, *plaintext* must be a multiple of *block_size*,
|
||||
unless it is the last chunk of the message.
|
||||
|
||||
:Parameters:
|
||||
ciphertext : byte string
|
||||
The piece of data to decrypt.
|
||||
:Return: the decrypted data (byte string, as long as *ciphertext*).
|
||||
"""
|
||||
if self.mode == MODE_OPENPGP:
|
||||
padding_length = (self.block_size - len(ciphertext) % self.block_size) % self.block_size
|
||||
if padding_length>0:
|
||||
# CFB mode requires ciphertext to have length multiple of block size,
|
||||
# but PGP mode allows the last block to be shorter
|
||||
if self._done_last_block:
|
||||
raise ValueError("Only the last chunk is allowed to have length not multiple of %d bytes",
|
||||
self.block_size)
|
||||
self._done_last_block = True
|
||||
padded = ciphertext + b('\x00')*padding_length
|
||||
res = self._cipher.decrypt(padded)[:len(ciphertext)]
|
||||
else:
|
||||
res = self._cipher.decrypt(ciphertext)
|
||||
return res
|
||||
|
||||
return self._cipher.decrypt(ciphertext)
|
||||
|
||||
@@ -1,127 +0,0 @@
|
||||
# -*- coding: ascii -*-
|
||||
#
|
||||
# Util/Counter.py : Fast counter for use with CTR-mode ciphers
|
||||
#
|
||||
# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
"""Fast counter functions for CTR cipher modes.
|
||||
|
||||
CTR is a chaining mode for symmetric block encryption or decryption.
|
||||
Messages are divideded into blocks, and the cipher operation takes
|
||||
place on each block using the secret key and a unique *counter block*.
|
||||
|
||||
The most straightforward way to fulfil the uniqueness property is
|
||||
to start with an initial, random *counter block* value, and increment it as
|
||||
the next block is processed.
|
||||
|
||||
The block ciphers from `Crypto.Cipher` (when configured in *MODE_CTR* mode)
|
||||
invoke a callable object (the *counter* parameter) to get the next *counter block*.
|
||||
Unfortunately, the Python calling protocol leads to major performance degradations.
|
||||
|
||||
The counter functions instantiated by this module will be invoked directly
|
||||
by the ciphers in `Crypto.Cipher`. The fact that the Python layer is bypassed
|
||||
lead to more efficient (and faster) execution of CTR cipher modes.
|
||||
|
||||
An example of usage is the following:
|
||||
|
||||
>>> from Crypto.Cipher import AES
|
||||
>>> from Crypto.Util import Counter
|
||||
>>>
|
||||
>>> pt = b'\x00'*1000000
|
||||
>>> ctr = Counter.new(128)
|
||||
>>> cipher = AES.new(b'\x00'*16, AES.MODE_CTR, counter=ctr)
|
||||
>>> ct = cipher.encrypt(pt)
|
||||
|
||||
:undocumented: __package__
|
||||
"""
|
||||
import sys
|
||||
if sys.version_info[0] == 2 and sys.version_info[1] == 1:
|
||||
from Crypto.Util.py21compat import *
|
||||
from Crypto.Util.py3compat import *
|
||||
|
||||
from Crypto.Util import _counter
|
||||
import struct
|
||||
|
||||
# Factory function
|
||||
def new(nbits, prefix=b(""), suffix=b(""), initial_value=1, overflow=0, little_endian=False, allow_wraparound=False, disable_shortcut=False):
|
||||
"""Create a stateful counter block function suitable for CTR encryption modes.
|
||||
|
||||
Each call to the function returns the next counter block.
|
||||
Each counter block is made up by three parts::
|
||||
|
||||
prefix || counter value || postfix
|
||||
|
||||
The counter value is incremented by one at each call.
|
||||
|
||||
:Parameters:
|
||||
nbits : integer
|
||||
Length of the desired counter, in bits. It must be a multiple of 8.
|
||||
prefix : byte string
|
||||
The constant prefix of the counter block. By default, no prefix is
|
||||
used.
|
||||
suffix : byte string
|
||||
The constant postfix of the counter block. By default, no suffix is
|
||||
used.
|
||||
initial_value : integer
|
||||
The initial value of the counter. Default value is 1.
|
||||
little_endian : boolean
|
||||
If True, the counter number will be encoded in little endian format.
|
||||
If False (default), in big endian format.
|
||||
allow_wraparound : boolean
|
||||
If True, the function will raise an *OverflowError* exception as soon
|
||||
as the counter wraps around. If False (default), the counter will
|
||||
simply restart from zero.
|
||||
disable_shortcut : boolean
|
||||
If True, do not make ciphers from `Crypto.Cipher` bypass the Python
|
||||
layer when invoking the counter block function.
|
||||
If False (default), bypass the Python layer.
|
||||
:Returns:
|
||||
The counter block function.
|
||||
"""
|
||||
|
||||
# Sanity-check the message size
|
||||
(nbytes, remainder) = divmod(nbits, 8)
|
||||
if remainder != 0:
|
||||
# In the future, we might support arbitrary bit lengths, but for now we don't.
|
||||
raise ValueError("nbits must be a multiple of 8; got %d" % (nbits,))
|
||||
if nbytes < 1:
|
||||
raise ValueError("nbits too small")
|
||||
elif nbytes > 0xffff:
|
||||
raise ValueError("nbits too large")
|
||||
|
||||
initval = _encode(initial_value, nbytes, little_endian)
|
||||
|
||||
if little_endian:
|
||||
return _counter._newLE(bstr(prefix), bstr(suffix), initval, allow_wraparound=allow_wraparound, disable_shortcut=disable_shortcut)
|
||||
else:
|
||||
return _counter._newBE(bstr(prefix), bstr(suffix), initval, allow_wraparound=allow_wraparound, disable_shortcut=disable_shortcut)
|
||||
|
||||
def _encode(n, nbytes, little_endian=False):
|
||||
retval = []
|
||||
n = long(n)
|
||||
for i in range(nbytes):
|
||||
if little_endian:
|
||||
retval.append(bchr(n & 0xff))
|
||||
else:
|
||||
retval.insert(0, bchr(n & 0xff))
|
||||
n >>= 8
|
||||
return b("").join(retval)
|
||||
|
||||
# vim:set ts=4 sw=4 sts=4 expandtab:
|
||||
@@ -1,37 +0,0 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
|
||||
"""Miscellaneous modules
|
||||
|
||||
Contains useful modules that don't belong into any of the
|
||||
other Crypto.* subpackages.
|
||||
|
||||
Crypto.Util.number Number-theoretic functions (primality testing, etc.)
|
||||
Crypto.Util.randpool Random number generation
|
||||
Crypto.Util.RFC1751 Converts between 128-bit keys and human-readable
|
||||
strings of words.
|
||||
Crypto.Util.asn1 Minimal support for ASN.1 DER encoding
|
||||
|
||||
"""
|
||||
|
||||
__all__ = ['randpool', 'RFC1751', 'number', 'strxor', 'asn1' ]
|
||||
|
||||
__revision__ = "$Id$"
|
||||
|
||||
Binary file not shown.
@@ -1,107 +0,0 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# Util/py3compat.py : Compatibility code for handling Py3k / Python 2.x
|
||||
#
|
||||
# Written in 2010 by Thorsten Behrens
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
|
||||
"""Compatibility code for handling string/bytes changes from Python 2.x to Py3k
|
||||
|
||||
In Python 2.x, strings (of type ''str'') contain binary data, including encoded
|
||||
Unicode text (e.g. UTF-8). The separate type ''unicode'' holds Unicode text.
|
||||
Unicode literals are specified via the u'...' prefix. Indexing or slicing
|
||||
either type always produces a string of the same type as the original.
|
||||
Data read from a file is always of '''str'' type.
|
||||
|
||||
In Python 3.x, strings (type ''str'') may only contain Unicode text. The u'...'
|
||||
prefix and the ''unicode'' type are now redundant. A new type (called
|
||||
''bytes'') has to be used for binary data (including any particular
|
||||
''encoding'' of a string). The b'...' prefix allows one to specify a binary
|
||||
literal. Indexing or slicing a string produces another string. Slicing a byte
|
||||
string produces another byte string, but the indexing operation produces an
|
||||
integer. Data read from a file is of '''str'' type if the file was opened in
|
||||
text mode, or of ''bytes'' type otherwise.
|
||||
|
||||
Since PyCrypto aims at supporting both Python 2.x and 3.x, the following helper
|
||||
functions are used to keep the rest of the library as independent as possible
|
||||
from the actual Python version.
|
||||
|
||||
In general, the code should always deal with binary strings, and use integers
|
||||
instead of 1-byte character strings.
|
||||
|
||||
b(s)
|
||||
Take a text string literal (with no prefix or with u'...' prefix) and
|
||||
make a byte string.
|
||||
bchr(c)
|
||||
Take an integer and make a 1-character byte string.
|
||||
bord(c)
|
||||
Take the result of indexing on a byte string and make an integer.
|
||||
tobytes(s)
|
||||
Take a text string, a byte string, or a sequence of character taken from
|
||||
a byte string and make a byte string.
|
||||
"""
|
||||
|
||||
__revision__ = "$Id$"
|
||||
|
||||
import sys
|
||||
|
||||
if sys.version_info[0] == 2:
|
||||
def b(s):
|
||||
return s
|
||||
def bchr(s):
|
||||
return chr(s)
|
||||
def bstr(s):
|
||||
return str(s)
|
||||
def bord(s):
|
||||
return ord(s)
|
||||
if sys.version_info[1] == 1:
|
||||
def tobytes(s):
|
||||
try:
|
||||
return s.encode('latin-1')
|
||||
except:
|
||||
return ''.join(s)
|
||||
else:
|
||||
def tobytes(s):
|
||||
if isinstance(s, unicode):
|
||||
return s.encode("latin-1")
|
||||
else:
|
||||
return ''.join(s)
|
||||
else:
|
||||
def b(s):
|
||||
return s.encode("latin-1") # utf-8 would cause some side-effects we don't want
|
||||
def bchr(s):
|
||||
return bytes([s])
|
||||
def bstr(s):
|
||||
if isinstance(s,str):
|
||||
return bytes(s,"latin-1")
|
||||
else:
|
||||
return bytes(s)
|
||||
def bord(s):
|
||||
return s
|
||||
def tobytes(s):
|
||||
if isinstance(s,bytes):
|
||||
return s
|
||||
else:
|
||||
if isinstance(s,str):
|
||||
return s.encode("latin-1")
|
||||
else:
|
||||
return bytes(s)
|
||||
|
||||
# vim:set ts=4 sw=4 sts=4 expandtab:
|
||||
@@ -1,51 +0,0 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
|
||||
"""Python Cryptography Toolkit
|
||||
|
||||
A collection of cryptographic modules implementing various algorithms
|
||||
and protocols.
|
||||
|
||||
Subpackages:
|
||||
|
||||
Crypto.Cipher
|
||||
Secret-key (AES, DES, ARC4) and public-key encryption (RSA PKCS#1) algorithms
|
||||
Crypto.Hash
|
||||
Hashing algorithms (MD5, SHA, HMAC)
|
||||
Crypto.Protocol
|
||||
Cryptographic protocols (Chaffing, all-or-nothing transform, key derivation
|
||||
functions). This package does not contain any network protocols.
|
||||
Crypto.PublicKey
|
||||
Public-key encryption and signature algorithms (RSA, DSA)
|
||||
Crypto.Signature
|
||||
Public-key signature algorithms (RSA PKCS#1)
|
||||
Crypto.Util
|
||||
Various useful modules and functions (long-to-string conversion, random number
|
||||
generation, number theoretic functions)
|
||||
"""
|
||||
|
||||
__all__ = ['Cipher', 'Hash', 'Protocol', 'PublicKey', 'Util', 'Signature']
|
||||
|
||||
__version__ = '2.6' # See also below and setup.py
|
||||
__revision__ = "$Id$"
|
||||
|
||||
# New software should look at this instead of at __version__ above.
|
||||
version_info = (2, 6, 0, 'final', 0) # See also above and setup.py
|
||||
|
||||
@@ -1,60 +0,0 @@
|
||||
# -*- coding: ascii -*-
|
||||
#
|
||||
# pct_warnings.py : PyCrypto warnings file
|
||||
#
|
||||
# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
|
||||
#
|
||||
# ===================================================================
|
||||
# The contents of this file are dedicated to the public domain. To
|
||||
# the extent that dedication to the public domain is not available,
|
||||
# everyone is granted a worldwide, perpetual, royalty-free,
|
||||
# non-exclusive license to exercise all rights associated with the
|
||||
# contents of this file for any purpose whatsoever.
|
||||
# No rights are reserved.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
# SOFTWARE.
|
||||
# ===================================================================
|
||||
|
||||
#
|
||||
# Base classes. All our warnings inherit from one of these in order to allow
|
||||
# the user to specifically filter them.
|
||||
#
|
||||
|
||||
class CryptoWarning(Warning):
|
||||
"""Base class for PyCrypto warnings"""
|
||||
|
||||
class CryptoDeprecationWarning(DeprecationWarning, CryptoWarning):
|
||||
"""Base PyCrypto DeprecationWarning class"""
|
||||
|
||||
class CryptoRuntimeWarning(RuntimeWarning, CryptoWarning):
|
||||
"""Base PyCrypto RuntimeWarning class"""
|
||||
|
||||
#
|
||||
# Warnings that we might actually use
|
||||
#
|
||||
|
||||
class RandomPool_DeprecationWarning(CryptoDeprecationWarning):
|
||||
"""Issued when Crypto.Util.randpool.RandomPool is instantiated."""
|
||||
|
||||
class ClockRewindWarning(CryptoRuntimeWarning):
|
||||
"""Warning for when the system clock moves backwards."""
|
||||
|
||||
class GetRandomNumber_DeprecationWarning(CryptoDeprecationWarning):
|
||||
"""Issued when Crypto.Util.number.getRandomNumber is invoked."""
|
||||
|
||||
class PowmInsecureWarning(CryptoRuntimeWarning):
|
||||
"""Warning for when _fastmath is built without mpz_powm_sec"""
|
||||
|
||||
# By default, we want this warning to be shown every time we compensate for
|
||||
# clock rewinding.
|
||||
import warnings as _warnings
|
||||
_warnings.filterwarnings('always', category=ClockRewindWarning, append=1)
|
||||
|
||||
# vim:set ts=4 sw=4 sts=4 expandtab:
|
||||
@@ -180,13 +180,12 @@ class Client(object):
|
||||
return self.base64urlencode(self.a32_to_str(a))
|
||||
|
||||
def aes_cbc_decrypt(self, data, key):
|
||||
from lib import pyaes
|
||||
decryptor = pyaes.AESModeOfOperationCBC(key, '\0' * 16)
|
||||
decrypted = ''
|
||||
for p in range(0, len(data), 16):
|
||||
decrypted += decryptor.decrypt(data[p:p + 16]).replace('\0', '')
|
||||
logger.info(decrypted)
|
||||
return decrypted
|
||||
try:
|
||||
from Cryptodome.Cipher import AES
|
||||
except:
|
||||
from Crypto.Cipher import AES
|
||||
decryptor = AES.new(key, AES.MODE_CBC, '\0' * 16)
|
||||
return decryptor.decrypt(data)
|
||||
|
||||
def aes_cbc_decrypt_a32(self,data, key):
|
||||
return self.str_to_a32(self.aes_cbc_decrypt(self.a32_to_str(data), self.a32_to_str(key)))
|
||||
|
||||
@@ -69,11 +69,10 @@ class Cursor(object):
|
||||
try:
|
||||
from Cryptodome.Cipher import AES
|
||||
from Cryptodome.Util import Counter
|
||||
self.decryptor = AES.new(self._file._client.a32_to_str(self.k), AES.MODE_CTR, counter = Counter.new(128, initial_value = initial_value))
|
||||
except:
|
||||
from Crypto.Cipher import AES
|
||||
from Crypto.Util import Counter
|
||||
self.decryptor = AES.new(self._file._client.a32_to_str(self.k), AES.MODE_CTR, counter = Counter.new(128, initial_value = initial_value))
|
||||
self.decryptor = AES.new(self._file._client.a32_to_str(self.k), AES.MODE_CTR, counter = Counter.new(128, initial_value = initial_value))
|
||||
rest = offset - int(offset/16)*16
|
||||
if rest:
|
||||
self.decode(str(0)*rest)
|
||||
|
||||
@@ -1,54 +0,0 @@
|
||||
# The MIT License (MIT)
|
||||
#
|
||||
# Copyright (c) 2014 Richard Moore
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documentation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furnished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
|
||||
# This is a pure-Python implementation of the AES algorithm and AES common
|
||||
# modes of operation.
|
||||
|
||||
# See: https://en.wikipedia.org/wiki/Advanced_Encryption_Standard
|
||||
# See: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation
|
||||
|
||||
|
||||
# Supported key sizes:
|
||||
# 128-bit
|
||||
# 192-bit
|
||||
# 256-bit
|
||||
|
||||
|
||||
# Supported modes of operation:
|
||||
# ECB - Electronic Codebook
|
||||
# CBC - Cipher-Block Chaining
|
||||
# CFB - Cipher Feedback
|
||||
# OFB - Output Feedback
|
||||
# CTR - Counter
|
||||
|
||||
# See the README.md for API details and general information.
|
||||
|
||||
# Also useful, PyCrypto, a crypto library implemented in C with Python bindings:
|
||||
# https://www.dlitz.net/software/pycrypto/
|
||||
|
||||
|
||||
VERSION = [1, 3, 0]
|
||||
|
||||
from .aes import AES, AESModeOfOperationCTR, AESModeOfOperationCBC, AESModeOfOperationCFB, AESModeOfOperationECB, AESModeOfOperationOFB, AESModesOfOperation, Counter
|
||||
from .blockfeeder import decrypt_stream, Decrypter, encrypt_stream, Encrypter
|
||||
from .blockfeeder import PADDING_NONE, PADDING_DEFAULT
|
||||
from .openssl_aes import AESCipher
|
||||
589
lib/pyaes/aes.py
589
lib/pyaes/aes.py
@@ -1,589 +0,0 @@
|
||||
# The MIT License (MIT)
|
||||
#
|
||||
# Copyright (c) 2014 Richard Moore
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documentation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furnished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
|
||||
# This is a pure-Python implementation of the AES algorithm and AES common
|
||||
# modes of operation.
|
||||
|
||||
# See: https://en.wikipedia.org/wiki/Advanced_Encryption_Standard
|
||||
|
||||
# Honestly, the best description of the modes of operations are the wonderful
|
||||
# diagrams on Wikipedia. They explain in moments what my words could never
|
||||
# achieve. Hence the inline documentation here is sparer than I'd prefer.
|
||||
# See: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation
|
||||
|
||||
# Also useful, PyCrypto, a crypto library implemented in C with Python bindings:
|
||||
# https://www.dlitz.net/software/pycrypto/
|
||||
|
||||
|
||||
# Supported key sizes:
|
||||
# 128-bit
|
||||
# 192-bit
|
||||
# 256-bit
|
||||
|
||||
|
||||
# Supported modes of operation:
|
||||
# ECB - Electronic Codebook
|
||||
# CBC - Cipher-Block Chaining
|
||||
# CFB - Cipher Feedback
|
||||
# OFB - Output Feedback
|
||||
# CTR - Counter
|
||||
|
||||
|
||||
# See the README.md for API details and general information.
|
||||
|
||||
|
||||
import copy
|
||||
import struct
|
||||
|
||||
__all__ = ["AES", "AESModeOfOperationCTR", "AESModeOfOperationCBC", "AESModeOfOperationCFB",
|
||||
"AESModeOfOperationECB", "AESModeOfOperationOFB", "AESModesOfOperation", "Counter"]
|
||||
|
||||
|
||||
def _compact_word(word):
|
||||
return (word[0] << 24) | (word[1] << 16) | (word[2] << 8) | word[3]
|
||||
|
||||
def _string_to_bytes(text):
|
||||
return list(ord(c) for c in text)
|
||||
|
||||
def _bytes_to_string(binary):
|
||||
return "".join(chr(b) for b in binary)
|
||||
|
||||
def _concat_list(a, b):
|
||||
return a + b
|
||||
|
||||
|
||||
# Python 3 compatibility
|
||||
try:
|
||||
xrange
|
||||
except Exception:
|
||||
xrange = range
|
||||
|
||||
# Python 3 supports bytes, which is already an array of integers
|
||||
def _string_to_bytes(text):
|
||||
if isinstance(text, bytes):
|
||||
return text
|
||||
return [ord(c) for c in text]
|
||||
|
||||
# In Python 3, we return bytes
|
||||
def _bytes_to_string(binary):
|
||||
return bytes(binary)
|
||||
|
||||
# Python 3 cannot concatenate a list onto a bytes, so we bytes-ify it first
|
||||
def _concat_list(a, b):
|
||||
return a + bytes(b)
|
||||
|
||||
|
||||
# Based *largely* on the Rijndael implementation
|
||||
# See: http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
|
||||
class AES(object):
|
||||
'''Encapsulates the AES block cipher.
|
||||
|
||||
You generally should not need this. Use the AESModeOfOperation classes
|
||||
below instead.'''
|
||||
|
||||
# Number of rounds by keysize
|
||||
number_of_rounds = {16: 10, 24: 12, 32: 14}
|
||||
|
||||
# Round constant words
|
||||
rcon = [ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91 ]
|
||||
|
||||
# S-box and Inverse S-box (S is for Substitution)
|
||||
S = [ 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 ]
|
||||
Si =[ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e, 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84, 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73, 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4, 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61, 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d ]
|
||||
|
||||
# Transformations for encryption
|
||||
T1 = [ 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d, 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554, 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d, 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a, 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87, 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b, 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea, 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b, 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a, 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f, 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108, 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f, 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e, 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5, 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d, 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f, 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e, 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb, 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce, 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497, 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c, 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed, 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b, 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a, 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16, 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594, 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81, 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3, 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a, 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504, 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163, 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d, 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f, 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739, 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47, 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395, 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f, 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883, 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c, 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76, 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e, 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4, 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6, 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b, 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7, 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0, 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25, 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818, 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72, 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651, 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21, 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85, 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa, 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12, 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0, 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9, 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133, 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7, 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920, 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a, 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17, 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8, 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11, 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a ]
|
||||
T2 = [ 0xa5c66363, 0x84f87c7c, 0x99ee7777, 0x8df67b7b, 0x0dfff2f2, 0xbdd66b6b, 0xb1de6f6f, 0x5491c5c5, 0x50603030, 0x03020101, 0xa9ce6767, 0x7d562b2b, 0x19e7fefe, 0x62b5d7d7, 0xe64dabab, 0x9aec7676, 0x458fcaca, 0x9d1f8282, 0x4089c9c9, 0x87fa7d7d, 0x15effafa, 0xebb25959, 0xc98e4747, 0x0bfbf0f0, 0xec41adad, 0x67b3d4d4, 0xfd5fa2a2, 0xea45afaf, 0xbf239c9c, 0xf753a4a4, 0x96e47272, 0x5b9bc0c0, 0xc275b7b7, 0x1ce1fdfd, 0xae3d9393, 0x6a4c2626, 0x5a6c3636, 0x417e3f3f, 0x02f5f7f7, 0x4f83cccc, 0x5c683434, 0xf451a5a5, 0x34d1e5e5, 0x08f9f1f1, 0x93e27171, 0x73abd8d8, 0x53623131, 0x3f2a1515, 0x0c080404, 0x5295c7c7, 0x65462323, 0x5e9dc3c3, 0x28301818, 0xa1379696, 0x0f0a0505, 0xb52f9a9a, 0x090e0707, 0x36241212, 0x9b1b8080, 0x3ddfe2e2, 0x26cdebeb, 0x694e2727, 0xcd7fb2b2, 0x9fea7575, 0x1b120909, 0x9e1d8383, 0x74582c2c, 0x2e341a1a, 0x2d361b1b, 0xb2dc6e6e, 0xeeb45a5a, 0xfb5ba0a0, 0xf6a45252, 0x4d763b3b, 0x61b7d6d6, 0xce7db3b3, 0x7b522929, 0x3edde3e3, 0x715e2f2f, 0x97138484, 0xf5a65353, 0x68b9d1d1, 0x00000000, 0x2cc1eded, 0x60402020, 0x1fe3fcfc, 0xc879b1b1, 0xedb65b5b, 0xbed46a6a, 0x468dcbcb, 0xd967bebe, 0x4b723939, 0xde944a4a, 0xd4984c4c, 0xe8b05858, 0x4a85cfcf, 0x6bbbd0d0, 0x2ac5efef, 0xe54faaaa, 0x16edfbfb, 0xc5864343, 0xd79a4d4d, 0x55663333, 0x94118585, 0xcf8a4545, 0x10e9f9f9, 0x06040202, 0x81fe7f7f, 0xf0a05050, 0x44783c3c, 0xba259f9f, 0xe34ba8a8, 0xf3a25151, 0xfe5da3a3, 0xc0804040, 0x8a058f8f, 0xad3f9292, 0xbc219d9d, 0x48703838, 0x04f1f5f5, 0xdf63bcbc, 0xc177b6b6, 0x75afdada, 0x63422121, 0x30201010, 0x1ae5ffff, 0x0efdf3f3, 0x6dbfd2d2, 0x4c81cdcd, 0x14180c0c, 0x35261313, 0x2fc3ecec, 0xe1be5f5f, 0xa2359797, 0xcc884444, 0x392e1717, 0x5793c4c4, 0xf255a7a7, 0x82fc7e7e, 0x477a3d3d, 0xacc86464, 0xe7ba5d5d, 0x2b321919, 0x95e67373, 0xa0c06060, 0x98198181, 0xd19e4f4f, 0x7fa3dcdc, 0x66442222, 0x7e542a2a, 0xab3b9090, 0x830b8888, 0xca8c4646, 0x29c7eeee, 0xd36bb8b8, 0x3c281414, 0x79a7dede, 0xe2bc5e5e, 0x1d160b0b, 0x76addbdb, 0x3bdbe0e0, 0x56643232, 0x4e743a3a, 0x1e140a0a, 0xdb924949, 0x0a0c0606, 0x6c482424, 0xe4b85c5c, 0x5d9fc2c2, 0x6ebdd3d3, 0xef43acac, 0xa6c46262, 0xa8399191, 0xa4319595, 0x37d3e4e4, 0x8bf27979, 0x32d5e7e7, 0x438bc8c8, 0x596e3737, 0xb7da6d6d, 0x8c018d8d, 0x64b1d5d5, 0xd29c4e4e, 0xe049a9a9, 0xb4d86c6c, 0xfaac5656, 0x07f3f4f4, 0x25cfeaea, 0xafca6565, 0x8ef47a7a, 0xe947aeae, 0x18100808, 0xd56fbaba, 0x88f07878, 0x6f4a2525, 0x725c2e2e, 0x24381c1c, 0xf157a6a6, 0xc773b4b4, 0x5197c6c6, 0x23cbe8e8, 0x7ca1dddd, 0x9ce87474, 0x213e1f1f, 0xdd964b4b, 0xdc61bdbd, 0x860d8b8b, 0x850f8a8a, 0x90e07070, 0x427c3e3e, 0xc471b5b5, 0xaacc6666, 0xd8904848, 0x05060303, 0x01f7f6f6, 0x121c0e0e, 0xa3c26161, 0x5f6a3535, 0xf9ae5757, 0xd069b9b9, 0x91178686, 0x5899c1c1, 0x273a1d1d, 0xb9279e9e, 0x38d9e1e1, 0x13ebf8f8, 0xb32b9898, 0x33221111, 0xbbd26969, 0x70a9d9d9, 0x89078e8e, 0xa7339494, 0xb62d9b9b, 0x223c1e1e, 0x92158787, 0x20c9e9e9, 0x4987cece, 0xffaa5555, 0x78502828, 0x7aa5dfdf, 0x8f038c8c, 0xf859a1a1, 0x80098989, 0x171a0d0d, 0xda65bfbf, 0x31d7e6e6, 0xc6844242, 0xb8d06868, 0xc3824141, 0xb0299999, 0x775a2d2d, 0x111e0f0f, 0xcb7bb0b0, 0xfca85454, 0xd66dbbbb, 0x3a2c1616 ]
|
||||
T3 = [ 0x63a5c663, 0x7c84f87c, 0x7799ee77, 0x7b8df67b, 0xf20dfff2, 0x6bbdd66b, 0x6fb1de6f, 0xc55491c5, 0x30506030, 0x01030201, 0x67a9ce67, 0x2b7d562b, 0xfe19e7fe, 0xd762b5d7, 0xabe64dab, 0x769aec76, 0xca458fca, 0x829d1f82, 0xc94089c9, 0x7d87fa7d, 0xfa15effa, 0x59ebb259, 0x47c98e47, 0xf00bfbf0, 0xadec41ad, 0xd467b3d4, 0xa2fd5fa2, 0xafea45af, 0x9cbf239c, 0xa4f753a4, 0x7296e472, 0xc05b9bc0, 0xb7c275b7, 0xfd1ce1fd, 0x93ae3d93, 0x266a4c26, 0x365a6c36, 0x3f417e3f, 0xf702f5f7, 0xcc4f83cc, 0x345c6834, 0xa5f451a5, 0xe534d1e5, 0xf108f9f1, 0x7193e271, 0xd873abd8, 0x31536231, 0x153f2a15, 0x040c0804, 0xc75295c7, 0x23654623, 0xc35e9dc3, 0x18283018, 0x96a13796, 0x050f0a05, 0x9ab52f9a, 0x07090e07, 0x12362412, 0x809b1b80, 0xe23ddfe2, 0xeb26cdeb, 0x27694e27, 0xb2cd7fb2, 0x759fea75, 0x091b1209, 0x839e1d83, 0x2c74582c, 0x1a2e341a, 0x1b2d361b, 0x6eb2dc6e, 0x5aeeb45a, 0xa0fb5ba0, 0x52f6a452, 0x3b4d763b, 0xd661b7d6, 0xb3ce7db3, 0x297b5229, 0xe33edde3, 0x2f715e2f, 0x84971384, 0x53f5a653, 0xd168b9d1, 0x00000000, 0xed2cc1ed, 0x20604020, 0xfc1fe3fc, 0xb1c879b1, 0x5bedb65b, 0x6abed46a, 0xcb468dcb, 0xbed967be, 0x394b7239, 0x4ade944a, 0x4cd4984c, 0x58e8b058, 0xcf4a85cf, 0xd06bbbd0, 0xef2ac5ef, 0xaae54faa, 0xfb16edfb, 0x43c58643, 0x4dd79a4d, 0x33556633, 0x85941185, 0x45cf8a45, 0xf910e9f9, 0x02060402, 0x7f81fe7f, 0x50f0a050, 0x3c44783c, 0x9fba259f, 0xa8e34ba8, 0x51f3a251, 0xa3fe5da3, 0x40c08040, 0x8f8a058f, 0x92ad3f92, 0x9dbc219d, 0x38487038, 0xf504f1f5, 0xbcdf63bc, 0xb6c177b6, 0xda75afda, 0x21634221, 0x10302010, 0xff1ae5ff, 0xf30efdf3, 0xd26dbfd2, 0xcd4c81cd, 0x0c14180c, 0x13352613, 0xec2fc3ec, 0x5fe1be5f, 0x97a23597, 0x44cc8844, 0x17392e17, 0xc45793c4, 0xa7f255a7, 0x7e82fc7e, 0x3d477a3d, 0x64acc864, 0x5de7ba5d, 0x192b3219, 0x7395e673, 0x60a0c060, 0x81981981, 0x4fd19e4f, 0xdc7fa3dc, 0x22664422, 0x2a7e542a, 0x90ab3b90, 0x88830b88, 0x46ca8c46, 0xee29c7ee, 0xb8d36bb8, 0x143c2814, 0xde79a7de, 0x5ee2bc5e, 0x0b1d160b, 0xdb76addb, 0xe03bdbe0, 0x32566432, 0x3a4e743a, 0x0a1e140a, 0x49db9249, 0x060a0c06, 0x246c4824, 0x5ce4b85c, 0xc25d9fc2, 0xd36ebdd3, 0xacef43ac, 0x62a6c462, 0x91a83991, 0x95a43195, 0xe437d3e4, 0x798bf279, 0xe732d5e7, 0xc8438bc8, 0x37596e37, 0x6db7da6d, 0x8d8c018d, 0xd564b1d5, 0x4ed29c4e, 0xa9e049a9, 0x6cb4d86c, 0x56faac56, 0xf407f3f4, 0xea25cfea, 0x65afca65, 0x7a8ef47a, 0xaee947ae, 0x08181008, 0xbad56fba, 0x7888f078, 0x256f4a25, 0x2e725c2e, 0x1c24381c, 0xa6f157a6, 0xb4c773b4, 0xc65197c6, 0xe823cbe8, 0xdd7ca1dd, 0x749ce874, 0x1f213e1f, 0x4bdd964b, 0xbddc61bd, 0x8b860d8b, 0x8a850f8a, 0x7090e070, 0x3e427c3e, 0xb5c471b5, 0x66aacc66, 0x48d89048, 0x03050603, 0xf601f7f6, 0x0e121c0e, 0x61a3c261, 0x355f6a35, 0x57f9ae57, 0xb9d069b9, 0x86911786, 0xc15899c1, 0x1d273a1d, 0x9eb9279e, 0xe138d9e1, 0xf813ebf8, 0x98b32b98, 0x11332211, 0x69bbd269, 0xd970a9d9, 0x8e89078e, 0x94a73394, 0x9bb62d9b, 0x1e223c1e, 0x87921587, 0xe920c9e9, 0xce4987ce, 0x55ffaa55, 0x28785028, 0xdf7aa5df, 0x8c8f038c, 0xa1f859a1, 0x89800989, 0x0d171a0d, 0xbfda65bf, 0xe631d7e6, 0x42c68442, 0x68b8d068, 0x41c38241, 0x99b02999, 0x2d775a2d, 0x0f111e0f, 0xb0cb7bb0, 0x54fca854, 0xbbd66dbb, 0x163a2c16 ]
|
||||
T4 = [ 0x6363a5c6, 0x7c7c84f8, 0x777799ee, 0x7b7b8df6, 0xf2f20dff, 0x6b6bbdd6, 0x6f6fb1de, 0xc5c55491, 0x30305060, 0x01010302, 0x6767a9ce, 0x2b2b7d56, 0xfefe19e7, 0xd7d762b5, 0xababe64d, 0x76769aec, 0xcaca458f, 0x82829d1f, 0xc9c94089, 0x7d7d87fa, 0xfafa15ef, 0x5959ebb2, 0x4747c98e, 0xf0f00bfb, 0xadadec41, 0xd4d467b3, 0xa2a2fd5f, 0xafafea45, 0x9c9cbf23, 0xa4a4f753, 0x727296e4, 0xc0c05b9b, 0xb7b7c275, 0xfdfd1ce1, 0x9393ae3d, 0x26266a4c, 0x36365a6c, 0x3f3f417e, 0xf7f702f5, 0xcccc4f83, 0x34345c68, 0xa5a5f451, 0xe5e534d1, 0xf1f108f9, 0x717193e2, 0xd8d873ab, 0x31315362, 0x15153f2a, 0x04040c08, 0xc7c75295, 0x23236546, 0xc3c35e9d, 0x18182830, 0x9696a137, 0x05050f0a, 0x9a9ab52f, 0x0707090e, 0x12123624, 0x80809b1b, 0xe2e23ddf, 0xebeb26cd, 0x2727694e, 0xb2b2cd7f, 0x75759fea, 0x09091b12, 0x83839e1d, 0x2c2c7458, 0x1a1a2e34, 0x1b1b2d36, 0x6e6eb2dc, 0x5a5aeeb4, 0xa0a0fb5b, 0x5252f6a4, 0x3b3b4d76, 0xd6d661b7, 0xb3b3ce7d, 0x29297b52, 0xe3e33edd, 0x2f2f715e, 0x84849713, 0x5353f5a6, 0xd1d168b9, 0x00000000, 0xeded2cc1, 0x20206040, 0xfcfc1fe3, 0xb1b1c879, 0x5b5bedb6, 0x6a6abed4, 0xcbcb468d, 0xbebed967, 0x39394b72, 0x4a4ade94, 0x4c4cd498, 0x5858e8b0, 0xcfcf4a85, 0xd0d06bbb, 0xefef2ac5, 0xaaaae54f, 0xfbfb16ed, 0x4343c586, 0x4d4dd79a, 0x33335566, 0x85859411, 0x4545cf8a, 0xf9f910e9, 0x02020604, 0x7f7f81fe, 0x5050f0a0, 0x3c3c4478, 0x9f9fba25, 0xa8a8e34b, 0x5151f3a2, 0xa3a3fe5d, 0x4040c080, 0x8f8f8a05, 0x9292ad3f, 0x9d9dbc21, 0x38384870, 0xf5f504f1, 0xbcbcdf63, 0xb6b6c177, 0xdada75af, 0x21216342, 0x10103020, 0xffff1ae5, 0xf3f30efd, 0xd2d26dbf, 0xcdcd4c81, 0x0c0c1418, 0x13133526, 0xecec2fc3, 0x5f5fe1be, 0x9797a235, 0x4444cc88, 0x1717392e, 0xc4c45793, 0xa7a7f255, 0x7e7e82fc, 0x3d3d477a, 0x6464acc8, 0x5d5de7ba, 0x19192b32, 0x737395e6, 0x6060a0c0, 0x81819819, 0x4f4fd19e, 0xdcdc7fa3, 0x22226644, 0x2a2a7e54, 0x9090ab3b, 0x8888830b, 0x4646ca8c, 0xeeee29c7, 0xb8b8d36b, 0x14143c28, 0xdede79a7, 0x5e5ee2bc, 0x0b0b1d16, 0xdbdb76ad, 0xe0e03bdb, 0x32325664, 0x3a3a4e74, 0x0a0a1e14, 0x4949db92, 0x06060a0c, 0x24246c48, 0x5c5ce4b8, 0xc2c25d9f, 0xd3d36ebd, 0xacacef43, 0x6262a6c4, 0x9191a839, 0x9595a431, 0xe4e437d3, 0x79798bf2, 0xe7e732d5, 0xc8c8438b, 0x3737596e, 0x6d6db7da, 0x8d8d8c01, 0xd5d564b1, 0x4e4ed29c, 0xa9a9e049, 0x6c6cb4d8, 0x5656faac, 0xf4f407f3, 0xeaea25cf, 0x6565afca, 0x7a7a8ef4, 0xaeaee947, 0x08081810, 0xbabad56f, 0x787888f0, 0x25256f4a, 0x2e2e725c, 0x1c1c2438, 0xa6a6f157, 0xb4b4c773, 0xc6c65197, 0xe8e823cb, 0xdddd7ca1, 0x74749ce8, 0x1f1f213e, 0x4b4bdd96, 0xbdbddc61, 0x8b8b860d, 0x8a8a850f, 0x707090e0, 0x3e3e427c, 0xb5b5c471, 0x6666aacc, 0x4848d890, 0x03030506, 0xf6f601f7, 0x0e0e121c, 0x6161a3c2, 0x35355f6a, 0x5757f9ae, 0xb9b9d069, 0x86869117, 0xc1c15899, 0x1d1d273a, 0x9e9eb927, 0xe1e138d9, 0xf8f813eb, 0x9898b32b, 0x11113322, 0x6969bbd2, 0xd9d970a9, 0x8e8e8907, 0x9494a733, 0x9b9bb62d, 0x1e1e223c, 0x87879215, 0xe9e920c9, 0xcece4987, 0x5555ffaa, 0x28287850, 0xdfdf7aa5, 0x8c8c8f03, 0xa1a1f859, 0x89898009, 0x0d0d171a, 0xbfbfda65, 0xe6e631d7, 0x4242c684, 0x6868b8d0, 0x4141c382, 0x9999b029, 0x2d2d775a, 0x0f0f111e, 0xb0b0cb7b, 0x5454fca8, 0xbbbbd66d, 0x16163a2c ]
|
||||
|
||||
# Transformations for decryption
|
||||
T5 = [ 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96, 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393, 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25, 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f, 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1, 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6, 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da, 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844, 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd, 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4, 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45, 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94, 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7, 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a, 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5, 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c, 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1, 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a, 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75, 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051, 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46, 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff, 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77, 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb, 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000, 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e, 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927, 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a, 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e, 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16, 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d, 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8, 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd, 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34, 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163, 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120, 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d, 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0, 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422, 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef, 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36, 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4, 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662, 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5, 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3, 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b, 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8, 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6, 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6, 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0, 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815, 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f, 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df, 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f, 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e, 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713, 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89, 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c, 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf, 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86, 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f, 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541, 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190, 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742 ]
|
||||
T6 = [ 0x5051f4a7, 0x537e4165, 0xc31a17a4, 0x963a275e, 0xcb3bab6b, 0xf11f9d45, 0xabacfa58, 0x934be303, 0x552030fa, 0xf6ad766d, 0x9188cc76, 0x25f5024c, 0xfc4fe5d7, 0xd7c52acb, 0x80263544, 0x8fb562a3, 0x49deb15a, 0x6725ba1b, 0x9845ea0e, 0xe15dfec0, 0x02c32f75, 0x12814cf0, 0xa38d4697, 0xc66bd3f9, 0xe7038f5f, 0x9515929c, 0xebbf6d7a, 0xda955259, 0x2dd4be83, 0xd3587421, 0x2949e069, 0x448ec9c8, 0x6a75c289, 0x78f48e79, 0x6b99583e, 0xdd27b971, 0xb6bee14f, 0x17f088ad, 0x66c920ac, 0xb47dce3a, 0x1863df4a, 0x82e51a31, 0x60975133, 0x4562537f, 0xe0b16477, 0x84bb6bae, 0x1cfe81a0, 0x94f9082b, 0x58704868, 0x198f45fd, 0x8794de6c, 0xb7527bf8, 0x23ab73d3, 0xe2724b02, 0x57e31f8f, 0x2a6655ab, 0x07b2eb28, 0x032fb5c2, 0x9a86c57b, 0xa5d33708, 0xf2302887, 0xb223bfa5, 0xba02036a, 0x5ced1682, 0x2b8acf1c, 0x92a779b4, 0xf0f307f2, 0xa14e69e2, 0xcd65daf4, 0xd50605be, 0x1fd13462, 0x8ac4a6fe, 0x9d342e53, 0xa0a2f355, 0x32058ae1, 0x75a4f6eb, 0x390b83ec, 0xaa4060ef, 0x065e719f, 0x51bd6e10, 0xf93e218a, 0x3d96dd06, 0xaedd3e05, 0x464de6bd, 0xb591548d, 0x0571c45d, 0x6f0406d4, 0xff605015, 0x241998fb, 0x97d6bde9, 0xcc894043, 0x7767d99e, 0xbdb0e842, 0x8807898b, 0x38e7195b, 0xdb79c8ee, 0x47a17c0a, 0xe97c420f, 0xc9f8841e, 0x00000000, 0x83098086, 0x48322bed, 0xac1e1170, 0x4e6c5a72, 0xfbfd0eff, 0x560f8538, 0x1e3daed5, 0x27362d39, 0x640a0fd9, 0x21685ca6, 0xd19b5b54, 0x3a24362e, 0xb10c0a67, 0x0f9357e7, 0xd2b4ee96, 0x9e1b9b91, 0x4f80c0c5, 0xa261dc20, 0x695a774b, 0x161c121a, 0x0ae293ba, 0xe5c0a02a, 0x433c22e0, 0x1d121b17, 0x0b0e090d, 0xadf28bc7, 0xb92db6a8, 0xc8141ea9, 0x8557f119, 0x4caf7507, 0xbbee99dd, 0xfda37f60, 0x9ff70126, 0xbc5c72f5, 0xc544663b, 0x345bfb7e, 0x768b4329, 0xdccb23c6, 0x68b6edfc, 0x63b8e4f1, 0xcad731dc, 0x10426385, 0x40139722, 0x2084c611, 0x7d854a24, 0xf8d2bb3d, 0x11aef932, 0x6dc729a1, 0x4b1d9e2f, 0xf3dcb230, 0xec0d8652, 0xd077c1e3, 0x6c2bb316, 0x99a970b9, 0xfa119448, 0x2247e964, 0xc4a8fc8c, 0x1aa0f03f, 0xd8567d2c, 0xef223390, 0xc787494e, 0xc1d938d1, 0xfe8ccaa2, 0x3698d40b, 0xcfa6f581, 0x28a57ade, 0x26dab78e, 0xa43fadbf, 0xe42c3a9d, 0x0d507892, 0x9b6a5fcc, 0x62547e46, 0xc2f68d13, 0xe890d8b8, 0x5e2e39f7, 0xf582c3af, 0xbe9f5d80, 0x7c69d093, 0xa96fd52d, 0xb3cf2512, 0x3bc8ac99, 0xa710187d, 0x6ee89c63, 0x7bdb3bbb, 0x09cd2678, 0xf46e5918, 0x01ec9ab7, 0xa8834f9a, 0x65e6956e, 0x7eaaffe6, 0x0821bccf, 0xe6ef15e8, 0xd9bae79b, 0xce4a6f36, 0xd4ea9f09, 0xd629b07c, 0xaf31a4b2, 0x312a3f23, 0x30c6a594, 0xc035a266, 0x37744ebc, 0xa6fc82ca, 0xb0e090d0, 0x1533a7d8, 0x4af10498, 0xf741ecda, 0x0e7fcd50, 0x2f1791f6, 0x8d764dd6, 0x4d43efb0, 0x54ccaa4d, 0xdfe49604, 0xe39ed1b5, 0x1b4c6a88, 0xb8c12c1f, 0x7f466551, 0x049d5eea, 0x5d018c35, 0x73fa8774, 0x2efb0b41, 0x5ab3671d, 0x5292dbd2, 0x33e91056, 0x136dd647, 0x8c9ad761, 0x7a37a10c, 0x8e59f814, 0x89eb133c, 0xeecea927, 0x35b761c9, 0xede11ce5, 0x3c7a47b1, 0x599cd2df, 0x3f55f273, 0x791814ce, 0xbf73c737, 0xea53f7cd, 0x5b5ffdaa, 0x14df3d6f, 0x867844db, 0x81caaff3, 0x3eb968c4, 0x2c382434, 0x5fc2a340, 0x72161dc3, 0x0cbce225, 0x8b283c49, 0x41ff0d95, 0x7139a801, 0xde080cb3, 0x9cd8b4e4, 0x906456c1, 0x617bcb84, 0x70d532b6, 0x74486c5c, 0x42d0b857 ]
|
||||
T7 = [ 0xa75051f4, 0x65537e41, 0xa4c31a17, 0x5e963a27, 0x6bcb3bab, 0x45f11f9d, 0x58abacfa, 0x03934be3, 0xfa552030, 0x6df6ad76, 0x769188cc, 0x4c25f502, 0xd7fc4fe5, 0xcbd7c52a, 0x44802635, 0xa38fb562, 0x5a49deb1, 0x1b6725ba, 0x0e9845ea, 0xc0e15dfe, 0x7502c32f, 0xf012814c, 0x97a38d46, 0xf9c66bd3, 0x5fe7038f, 0x9c951592, 0x7aebbf6d, 0x59da9552, 0x832dd4be, 0x21d35874, 0x692949e0, 0xc8448ec9, 0x896a75c2, 0x7978f48e, 0x3e6b9958, 0x71dd27b9, 0x4fb6bee1, 0xad17f088, 0xac66c920, 0x3ab47dce, 0x4a1863df, 0x3182e51a, 0x33609751, 0x7f456253, 0x77e0b164, 0xae84bb6b, 0xa01cfe81, 0x2b94f908, 0x68587048, 0xfd198f45, 0x6c8794de, 0xf8b7527b, 0xd323ab73, 0x02e2724b, 0x8f57e31f, 0xab2a6655, 0x2807b2eb, 0xc2032fb5, 0x7b9a86c5, 0x08a5d337, 0x87f23028, 0xa5b223bf, 0x6aba0203, 0x825ced16, 0x1c2b8acf, 0xb492a779, 0xf2f0f307, 0xe2a14e69, 0xf4cd65da, 0xbed50605, 0x621fd134, 0xfe8ac4a6, 0x539d342e, 0x55a0a2f3, 0xe132058a, 0xeb75a4f6, 0xec390b83, 0xefaa4060, 0x9f065e71, 0x1051bd6e, 0x8af93e21, 0x063d96dd, 0x05aedd3e, 0xbd464de6, 0x8db59154, 0x5d0571c4, 0xd46f0406, 0x15ff6050, 0xfb241998, 0xe997d6bd, 0x43cc8940, 0x9e7767d9, 0x42bdb0e8, 0x8b880789, 0x5b38e719, 0xeedb79c8, 0x0a47a17c, 0x0fe97c42, 0x1ec9f884, 0x00000000, 0x86830980, 0xed48322b, 0x70ac1e11, 0x724e6c5a, 0xfffbfd0e, 0x38560f85, 0xd51e3dae, 0x3927362d, 0xd9640a0f, 0xa621685c, 0x54d19b5b, 0x2e3a2436, 0x67b10c0a, 0xe70f9357, 0x96d2b4ee, 0x919e1b9b, 0xc54f80c0, 0x20a261dc, 0x4b695a77, 0x1a161c12, 0xba0ae293, 0x2ae5c0a0, 0xe0433c22, 0x171d121b, 0x0d0b0e09, 0xc7adf28b, 0xa8b92db6, 0xa9c8141e, 0x198557f1, 0x074caf75, 0xddbbee99, 0x60fda37f, 0x269ff701, 0xf5bc5c72, 0x3bc54466, 0x7e345bfb, 0x29768b43, 0xc6dccb23, 0xfc68b6ed, 0xf163b8e4, 0xdccad731, 0x85104263, 0x22401397, 0x112084c6, 0x247d854a, 0x3df8d2bb, 0x3211aef9, 0xa16dc729, 0x2f4b1d9e, 0x30f3dcb2, 0x52ec0d86, 0xe3d077c1, 0x166c2bb3, 0xb999a970, 0x48fa1194, 0x642247e9, 0x8cc4a8fc, 0x3f1aa0f0, 0x2cd8567d, 0x90ef2233, 0x4ec78749, 0xd1c1d938, 0xa2fe8cca, 0x0b3698d4, 0x81cfa6f5, 0xde28a57a, 0x8e26dab7, 0xbfa43fad, 0x9de42c3a, 0x920d5078, 0xcc9b6a5f, 0x4662547e, 0x13c2f68d, 0xb8e890d8, 0xf75e2e39, 0xaff582c3, 0x80be9f5d, 0x937c69d0, 0x2da96fd5, 0x12b3cf25, 0x993bc8ac, 0x7da71018, 0x636ee89c, 0xbb7bdb3b, 0x7809cd26, 0x18f46e59, 0xb701ec9a, 0x9aa8834f, 0x6e65e695, 0xe67eaaff, 0xcf0821bc, 0xe8e6ef15, 0x9bd9bae7, 0x36ce4a6f, 0x09d4ea9f, 0x7cd629b0, 0xb2af31a4, 0x23312a3f, 0x9430c6a5, 0x66c035a2, 0xbc37744e, 0xcaa6fc82, 0xd0b0e090, 0xd81533a7, 0x984af104, 0xdaf741ec, 0x500e7fcd, 0xf62f1791, 0xd68d764d, 0xb04d43ef, 0x4d54ccaa, 0x04dfe496, 0xb5e39ed1, 0x881b4c6a, 0x1fb8c12c, 0x517f4665, 0xea049d5e, 0x355d018c, 0x7473fa87, 0x412efb0b, 0x1d5ab367, 0xd25292db, 0x5633e910, 0x47136dd6, 0x618c9ad7, 0x0c7a37a1, 0x148e59f8, 0x3c89eb13, 0x27eecea9, 0xc935b761, 0xe5ede11c, 0xb13c7a47, 0xdf599cd2, 0x733f55f2, 0xce791814, 0x37bf73c7, 0xcdea53f7, 0xaa5b5ffd, 0x6f14df3d, 0xdb867844, 0xf381caaf, 0xc43eb968, 0x342c3824, 0x405fc2a3, 0xc372161d, 0x250cbce2, 0x498b283c, 0x9541ff0d, 0x017139a8, 0xb3de080c, 0xe49cd8b4, 0xc1906456, 0x84617bcb, 0xb670d532, 0x5c74486c, 0x5742d0b8 ]
|
||||
T8 = [ 0xf4a75051, 0x4165537e, 0x17a4c31a, 0x275e963a, 0xab6bcb3b, 0x9d45f11f, 0xfa58abac, 0xe303934b, 0x30fa5520, 0x766df6ad, 0xcc769188, 0x024c25f5, 0xe5d7fc4f, 0x2acbd7c5, 0x35448026, 0x62a38fb5, 0xb15a49de, 0xba1b6725, 0xea0e9845, 0xfec0e15d, 0x2f7502c3, 0x4cf01281, 0x4697a38d, 0xd3f9c66b, 0x8f5fe703, 0x929c9515, 0x6d7aebbf, 0x5259da95, 0xbe832dd4, 0x7421d358, 0xe0692949, 0xc9c8448e, 0xc2896a75, 0x8e7978f4, 0x583e6b99, 0xb971dd27, 0xe14fb6be, 0x88ad17f0, 0x20ac66c9, 0xce3ab47d, 0xdf4a1863, 0x1a3182e5, 0x51336097, 0x537f4562, 0x6477e0b1, 0x6bae84bb, 0x81a01cfe, 0x082b94f9, 0x48685870, 0x45fd198f, 0xde6c8794, 0x7bf8b752, 0x73d323ab, 0x4b02e272, 0x1f8f57e3, 0x55ab2a66, 0xeb2807b2, 0xb5c2032f, 0xc57b9a86, 0x3708a5d3, 0x2887f230, 0xbfa5b223, 0x036aba02, 0x16825ced, 0xcf1c2b8a, 0x79b492a7, 0x07f2f0f3, 0x69e2a14e, 0xdaf4cd65, 0x05bed506, 0x34621fd1, 0xa6fe8ac4, 0x2e539d34, 0xf355a0a2, 0x8ae13205, 0xf6eb75a4, 0x83ec390b, 0x60efaa40, 0x719f065e, 0x6e1051bd, 0x218af93e, 0xdd063d96, 0x3e05aedd, 0xe6bd464d, 0x548db591, 0xc45d0571, 0x06d46f04, 0x5015ff60, 0x98fb2419, 0xbde997d6, 0x4043cc89, 0xd99e7767, 0xe842bdb0, 0x898b8807, 0x195b38e7, 0xc8eedb79, 0x7c0a47a1, 0x420fe97c, 0x841ec9f8, 0x00000000, 0x80868309, 0x2bed4832, 0x1170ac1e, 0x5a724e6c, 0x0efffbfd, 0x8538560f, 0xaed51e3d, 0x2d392736, 0x0fd9640a, 0x5ca62168, 0x5b54d19b, 0x362e3a24, 0x0a67b10c, 0x57e70f93, 0xee96d2b4, 0x9b919e1b, 0xc0c54f80, 0xdc20a261, 0x774b695a, 0x121a161c, 0x93ba0ae2, 0xa02ae5c0, 0x22e0433c, 0x1b171d12, 0x090d0b0e, 0x8bc7adf2, 0xb6a8b92d, 0x1ea9c814, 0xf1198557, 0x75074caf, 0x99ddbbee, 0x7f60fda3, 0x01269ff7, 0x72f5bc5c, 0x663bc544, 0xfb7e345b, 0x4329768b, 0x23c6dccb, 0xedfc68b6, 0xe4f163b8, 0x31dccad7, 0x63851042, 0x97224013, 0xc6112084, 0x4a247d85, 0xbb3df8d2, 0xf93211ae, 0x29a16dc7, 0x9e2f4b1d, 0xb230f3dc, 0x8652ec0d, 0xc1e3d077, 0xb3166c2b, 0x70b999a9, 0x9448fa11, 0xe9642247, 0xfc8cc4a8, 0xf03f1aa0, 0x7d2cd856, 0x3390ef22, 0x494ec787, 0x38d1c1d9, 0xcaa2fe8c, 0xd40b3698, 0xf581cfa6, 0x7ade28a5, 0xb78e26da, 0xadbfa43f, 0x3a9de42c, 0x78920d50, 0x5fcc9b6a, 0x7e466254, 0x8d13c2f6, 0xd8b8e890, 0x39f75e2e, 0xc3aff582, 0x5d80be9f, 0xd0937c69, 0xd52da96f, 0x2512b3cf, 0xac993bc8, 0x187da710, 0x9c636ee8, 0x3bbb7bdb, 0x267809cd, 0x5918f46e, 0x9ab701ec, 0x4f9aa883, 0x956e65e6, 0xffe67eaa, 0xbccf0821, 0x15e8e6ef, 0xe79bd9ba, 0x6f36ce4a, 0x9f09d4ea, 0xb07cd629, 0xa4b2af31, 0x3f23312a, 0xa59430c6, 0xa266c035, 0x4ebc3774, 0x82caa6fc, 0x90d0b0e0, 0xa7d81533, 0x04984af1, 0xecdaf741, 0xcd500e7f, 0x91f62f17, 0x4dd68d76, 0xefb04d43, 0xaa4d54cc, 0x9604dfe4, 0xd1b5e39e, 0x6a881b4c, 0x2c1fb8c1, 0x65517f46, 0x5eea049d, 0x8c355d01, 0x877473fa, 0x0b412efb, 0x671d5ab3, 0xdbd25292, 0x105633e9, 0xd647136d, 0xd7618c9a, 0xa10c7a37, 0xf8148e59, 0x133c89eb, 0xa927eece, 0x61c935b7, 0x1ce5ede1, 0x47b13c7a, 0xd2df599c, 0xf2733f55, 0x14ce7918, 0xc737bf73, 0xf7cdea53, 0xfdaa5b5f, 0x3d6f14df, 0x44db8678, 0xaff381ca, 0x68c43eb9, 0x24342c38, 0xa3405fc2, 0x1dc37216, 0xe2250cbc, 0x3c498b28, 0x0d9541ff, 0xa8017139, 0x0cb3de08, 0xb4e49cd8, 0x56c19064, 0xcb84617b, 0x32b670d5, 0x6c5c7448, 0xb85742d0 ]
|
||||
|
||||
# Transformations for decryption key expansion
|
||||
U1 = [ 0x00000000, 0x0e090d0b, 0x1c121a16, 0x121b171d, 0x3824342c, 0x362d3927, 0x24362e3a, 0x2a3f2331, 0x70486858, 0x7e416553, 0x6c5a724e, 0x62537f45, 0x486c5c74, 0x4665517f, 0x547e4662, 0x5a774b69, 0xe090d0b0, 0xee99ddbb, 0xfc82caa6, 0xf28bc7ad, 0xd8b4e49c, 0xd6bde997, 0xc4a6fe8a, 0xcaaff381, 0x90d8b8e8, 0x9ed1b5e3, 0x8ccaa2fe, 0x82c3aff5, 0xa8fc8cc4, 0xa6f581cf, 0xb4ee96d2, 0xbae79bd9, 0xdb3bbb7b, 0xd532b670, 0xc729a16d, 0xc920ac66, 0xe31f8f57, 0xed16825c, 0xff0d9541, 0xf104984a, 0xab73d323, 0xa57ade28, 0xb761c935, 0xb968c43e, 0x9357e70f, 0x9d5eea04, 0x8f45fd19, 0x814cf012, 0x3bab6bcb, 0x35a266c0, 0x27b971dd, 0x29b07cd6, 0x038f5fe7, 0x0d8652ec, 0x1f9d45f1, 0x119448fa, 0x4be30393, 0x45ea0e98, 0x57f11985, 0x59f8148e, 0x73c737bf, 0x7dce3ab4, 0x6fd52da9, 0x61dc20a2, 0xad766df6, 0xa37f60fd, 0xb16477e0, 0xbf6d7aeb, 0x955259da, 0x9b5b54d1, 0x894043cc, 0x87494ec7, 0xdd3e05ae, 0xd33708a5, 0xc12c1fb8, 0xcf2512b3, 0xe51a3182, 0xeb133c89, 0xf9082b94, 0xf701269f, 0x4de6bd46, 0x43efb04d, 0x51f4a750, 0x5ffdaa5b, 0x75c2896a, 0x7bcb8461, 0x69d0937c, 0x67d99e77, 0x3daed51e, 0x33a7d815, 0x21bccf08, 0x2fb5c203, 0x058ae132, 0x0b83ec39, 0x1998fb24, 0x1791f62f, 0x764dd68d, 0x7844db86, 0x6a5fcc9b, 0x6456c190, 0x4e69e2a1, 0x4060efaa, 0x527bf8b7, 0x5c72f5bc, 0x0605bed5, 0x080cb3de, 0x1a17a4c3, 0x141ea9c8, 0x3e218af9, 0x302887f2, 0x223390ef, 0x2c3a9de4, 0x96dd063d, 0x98d40b36, 0x8acf1c2b, 0x84c61120, 0xaef93211, 0xa0f03f1a, 0xb2eb2807, 0xbce2250c, 0xe6956e65, 0xe89c636e, 0xfa877473, 0xf48e7978, 0xdeb15a49, 0xd0b85742, 0xc2a3405f, 0xccaa4d54, 0x41ecdaf7, 0x4fe5d7fc, 0x5dfec0e1, 0x53f7cdea, 0x79c8eedb, 0x77c1e3d0, 0x65daf4cd, 0x6bd3f9c6, 0x31a4b2af, 0x3fadbfa4, 0x2db6a8b9, 0x23bfa5b2, 0x09808683, 0x07898b88, 0x15929c95, 0x1b9b919e, 0xa17c0a47, 0xaf75074c, 0xbd6e1051, 0xb3671d5a, 0x99583e6b, 0x97513360, 0x854a247d, 0x8b432976, 0xd134621f, 0xdf3d6f14, 0xcd267809, 0xc32f7502, 0xe9105633, 0xe7195b38, 0xf5024c25, 0xfb0b412e, 0x9ad7618c, 0x94de6c87, 0x86c57b9a, 0x88cc7691, 0xa2f355a0, 0xacfa58ab, 0xbee14fb6, 0xb0e842bd, 0xea9f09d4, 0xe49604df, 0xf68d13c2, 0xf8841ec9, 0xd2bb3df8, 0xdcb230f3, 0xcea927ee, 0xc0a02ae5, 0x7a47b13c, 0x744ebc37, 0x6655ab2a, 0x685ca621, 0x42638510, 0x4c6a881b, 0x5e719f06, 0x5078920d, 0x0a0fd964, 0x0406d46f, 0x161dc372, 0x1814ce79, 0x322bed48, 0x3c22e043, 0x2e39f75e, 0x2030fa55, 0xec9ab701, 0xe293ba0a, 0xf088ad17, 0xfe81a01c, 0xd4be832d, 0xdab78e26, 0xc8ac993b, 0xc6a59430, 0x9cd2df59, 0x92dbd252, 0x80c0c54f, 0x8ec9c844, 0xa4f6eb75, 0xaaffe67e, 0xb8e4f163, 0xb6edfc68, 0x0c0a67b1, 0x02036aba, 0x10187da7, 0x1e1170ac, 0x342e539d, 0x3a275e96, 0x283c498b, 0x26354480, 0x7c420fe9, 0x724b02e2, 0x605015ff, 0x6e5918f4, 0x44663bc5, 0x4a6f36ce, 0x587421d3, 0x567d2cd8, 0x37a10c7a, 0x39a80171, 0x2bb3166c, 0x25ba1b67, 0x0f853856, 0x018c355d, 0x13972240, 0x1d9e2f4b, 0x47e96422, 0x49e06929, 0x5bfb7e34, 0x55f2733f, 0x7fcd500e, 0x71c45d05, 0x63df4a18, 0x6dd64713, 0xd731dcca, 0xd938d1c1, 0xcb23c6dc, 0xc52acbd7, 0xef15e8e6, 0xe11ce5ed, 0xf307f2f0, 0xfd0efffb, 0xa779b492, 0xa970b999, 0xbb6bae84, 0xb562a38f, 0x9f5d80be, 0x91548db5, 0x834f9aa8, 0x8d4697a3 ]
|
||||
U2 = [ 0x00000000, 0x0b0e090d, 0x161c121a, 0x1d121b17, 0x2c382434, 0x27362d39, 0x3a24362e, 0x312a3f23, 0x58704868, 0x537e4165, 0x4e6c5a72, 0x4562537f, 0x74486c5c, 0x7f466551, 0x62547e46, 0x695a774b, 0xb0e090d0, 0xbbee99dd, 0xa6fc82ca, 0xadf28bc7, 0x9cd8b4e4, 0x97d6bde9, 0x8ac4a6fe, 0x81caaff3, 0xe890d8b8, 0xe39ed1b5, 0xfe8ccaa2, 0xf582c3af, 0xc4a8fc8c, 0xcfa6f581, 0xd2b4ee96, 0xd9bae79b, 0x7bdb3bbb, 0x70d532b6, 0x6dc729a1, 0x66c920ac, 0x57e31f8f, 0x5ced1682, 0x41ff0d95, 0x4af10498, 0x23ab73d3, 0x28a57ade, 0x35b761c9, 0x3eb968c4, 0x0f9357e7, 0x049d5eea, 0x198f45fd, 0x12814cf0, 0xcb3bab6b, 0xc035a266, 0xdd27b971, 0xd629b07c, 0xe7038f5f, 0xec0d8652, 0xf11f9d45, 0xfa119448, 0x934be303, 0x9845ea0e, 0x8557f119, 0x8e59f814, 0xbf73c737, 0xb47dce3a, 0xa96fd52d, 0xa261dc20, 0xf6ad766d, 0xfda37f60, 0xe0b16477, 0xebbf6d7a, 0xda955259, 0xd19b5b54, 0xcc894043, 0xc787494e, 0xaedd3e05, 0xa5d33708, 0xb8c12c1f, 0xb3cf2512, 0x82e51a31, 0x89eb133c, 0x94f9082b, 0x9ff70126, 0x464de6bd, 0x4d43efb0, 0x5051f4a7, 0x5b5ffdaa, 0x6a75c289, 0x617bcb84, 0x7c69d093, 0x7767d99e, 0x1e3daed5, 0x1533a7d8, 0x0821bccf, 0x032fb5c2, 0x32058ae1, 0x390b83ec, 0x241998fb, 0x2f1791f6, 0x8d764dd6, 0x867844db, 0x9b6a5fcc, 0x906456c1, 0xa14e69e2, 0xaa4060ef, 0xb7527bf8, 0xbc5c72f5, 0xd50605be, 0xde080cb3, 0xc31a17a4, 0xc8141ea9, 0xf93e218a, 0xf2302887, 0xef223390, 0xe42c3a9d, 0x3d96dd06, 0x3698d40b, 0x2b8acf1c, 0x2084c611, 0x11aef932, 0x1aa0f03f, 0x07b2eb28, 0x0cbce225, 0x65e6956e, 0x6ee89c63, 0x73fa8774, 0x78f48e79, 0x49deb15a, 0x42d0b857, 0x5fc2a340, 0x54ccaa4d, 0xf741ecda, 0xfc4fe5d7, 0xe15dfec0, 0xea53f7cd, 0xdb79c8ee, 0xd077c1e3, 0xcd65daf4, 0xc66bd3f9, 0xaf31a4b2, 0xa43fadbf, 0xb92db6a8, 0xb223bfa5, 0x83098086, 0x8807898b, 0x9515929c, 0x9e1b9b91, 0x47a17c0a, 0x4caf7507, 0x51bd6e10, 0x5ab3671d, 0x6b99583e, 0x60975133, 0x7d854a24, 0x768b4329, 0x1fd13462, 0x14df3d6f, 0x09cd2678, 0x02c32f75, 0x33e91056, 0x38e7195b, 0x25f5024c, 0x2efb0b41, 0x8c9ad761, 0x8794de6c, 0x9a86c57b, 0x9188cc76, 0xa0a2f355, 0xabacfa58, 0xb6bee14f, 0xbdb0e842, 0xd4ea9f09, 0xdfe49604, 0xc2f68d13, 0xc9f8841e, 0xf8d2bb3d, 0xf3dcb230, 0xeecea927, 0xe5c0a02a, 0x3c7a47b1, 0x37744ebc, 0x2a6655ab, 0x21685ca6, 0x10426385, 0x1b4c6a88, 0x065e719f, 0x0d507892, 0x640a0fd9, 0x6f0406d4, 0x72161dc3, 0x791814ce, 0x48322bed, 0x433c22e0, 0x5e2e39f7, 0x552030fa, 0x01ec9ab7, 0x0ae293ba, 0x17f088ad, 0x1cfe81a0, 0x2dd4be83, 0x26dab78e, 0x3bc8ac99, 0x30c6a594, 0x599cd2df, 0x5292dbd2, 0x4f80c0c5, 0x448ec9c8, 0x75a4f6eb, 0x7eaaffe6, 0x63b8e4f1, 0x68b6edfc, 0xb10c0a67, 0xba02036a, 0xa710187d, 0xac1e1170, 0x9d342e53, 0x963a275e, 0x8b283c49, 0x80263544, 0xe97c420f, 0xe2724b02, 0xff605015, 0xf46e5918, 0xc544663b, 0xce4a6f36, 0xd3587421, 0xd8567d2c, 0x7a37a10c, 0x7139a801, 0x6c2bb316, 0x6725ba1b, 0x560f8538, 0x5d018c35, 0x40139722, 0x4b1d9e2f, 0x2247e964, 0x2949e069, 0x345bfb7e, 0x3f55f273, 0x0e7fcd50, 0x0571c45d, 0x1863df4a, 0x136dd647, 0xcad731dc, 0xc1d938d1, 0xdccb23c6, 0xd7c52acb, 0xe6ef15e8, 0xede11ce5, 0xf0f307f2, 0xfbfd0eff, 0x92a779b4, 0x99a970b9, 0x84bb6bae, 0x8fb562a3, 0xbe9f5d80, 0xb591548d, 0xa8834f9a, 0xa38d4697 ]
|
||||
U3 = [ 0x00000000, 0x0d0b0e09, 0x1a161c12, 0x171d121b, 0x342c3824, 0x3927362d, 0x2e3a2436, 0x23312a3f, 0x68587048, 0x65537e41, 0x724e6c5a, 0x7f456253, 0x5c74486c, 0x517f4665, 0x4662547e, 0x4b695a77, 0xd0b0e090, 0xddbbee99, 0xcaa6fc82, 0xc7adf28b, 0xe49cd8b4, 0xe997d6bd, 0xfe8ac4a6, 0xf381caaf, 0xb8e890d8, 0xb5e39ed1, 0xa2fe8cca, 0xaff582c3, 0x8cc4a8fc, 0x81cfa6f5, 0x96d2b4ee, 0x9bd9bae7, 0xbb7bdb3b, 0xb670d532, 0xa16dc729, 0xac66c920, 0x8f57e31f, 0x825ced16, 0x9541ff0d, 0x984af104, 0xd323ab73, 0xde28a57a, 0xc935b761, 0xc43eb968, 0xe70f9357, 0xea049d5e, 0xfd198f45, 0xf012814c, 0x6bcb3bab, 0x66c035a2, 0x71dd27b9, 0x7cd629b0, 0x5fe7038f, 0x52ec0d86, 0x45f11f9d, 0x48fa1194, 0x03934be3, 0x0e9845ea, 0x198557f1, 0x148e59f8, 0x37bf73c7, 0x3ab47dce, 0x2da96fd5, 0x20a261dc, 0x6df6ad76, 0x60fda37f, 0x77e0b164, 0x7aebbf6d, 0x59da9552, 0x54d19b5b, 0x43cc8940, 0x4ec78749, 0x05aedd3e, 0x08a5d337, 0x1fb8c12c, 0x12b3cf25, 0x3182e51a, 0x3c89eb13, 0x2b94f908, 0x269ff701, 0xbd464de6, 0xb04d43ef, 0xa75051f4, 0xaa5b5ffd, 0x896a75c2, 0x84617bcb, 0x937c69d0, 0x9e7767d9, 0xd51e3dae, 0xd81533a7, 0xcf0821bc, 0xc2032fb5, 0xe132058a, 0xec390b83, 0xfb241998, 0xf62f1791, 0xd68d764d, 0xdb867844, 0xcc9b6a5f, 0xc1906456, 0xe2a14e69, 0xefaa4060, 0xf8b7527b, 0xf5bc5c72, 0xbed50605, 0xb3de080c, 0xa4c31a17, 0xa9c8141e, 0x8af93e21, 0x87f23028, 0x90ef2233, 0x9de42c3a, 0x063d96dd, 0x0b3698d4, 0x1c2b8acf, 0x112084c6, 0x3211aef9, 0x3f1aa0f0, 0x2807b2eb, 0x250cbce2, 0x6e65e695, 0x636ee89c, 0x7473fa87, 0x7978f48e, 0x5a49deb1, 0x5742d0b8, 0x405fc2a3, 0x4d54ccaa, 0xdaf741ec, 0xd7fc4fe5, 0xc0e15dfe, 0xcdea53f7, 0xeedb79c8, 0xe3d077c1, 0xf4cd65da, 0xf9c66bd3, 0xb2af31a4, 0xbfa43fad, 0xa8b92db6, 0xa5b223bf, 0x86830980, 0x8b880789, 0x9c951592, 0x919e1b9b, 0x0a47a17c, 0x074caf75, 0x1051bd6e, 0x1d5ab367, 0x3e6b9958, 0x33609751, 0x247d854a, 0x29768b43, 0x621fd134, 0x6f14df3d, 0x7809cd26, 0x7502c32f, 0x5633e910, 0x5b38e719, 0x4c25f502, 0x412efb0b, 0x618c9ad7, 0x6c8794de, 0x7b9a86c5, 0x769188cc, 0x55a0a2f3, 0x58abacfa, 0x4fb6bee1, 0x42bdb0e8, 0x09d4ea9f, 0x04dfe496, 0x13c2f68d, 0x1ec9f884, 0x3df8d2bb, 0x30f3dcb2, 0x27eecea9, 0x2ae5c0a0, 0xb13c7a47, 0xbc37744e, 0xab2a6655, 0xa621685c, 0x85104263, 0x881b4c6a, 0x9f065e71, 0x920d5078, 0xd9640a0f, 0xd46f0406, 0xc372161d, 0xce791814, 0xed48322b, 0xe0433c22, 0xf75e2e39, 0xfa552030, 0xb701ec9a, 0xba0ae293, 0xad17f088, 0xa01cfe81, 0x832dd4be, 0x8e26dab7, 0x993bc8ac, 0x9430c6a5, 0xdf599cd2, 0xd25292db, 0xc54f80c0, 0xc8448ec9, 0xeb75a4f6, 0xe67eaaff, 0xf163b8e4, 0xfc68b6ed, 0x67b10c0a, 0x6aba0203, 0x7da71018, 0x70ac1e11, 0x539d342e, 0x5e963a27, 0x498b283c, 0x44802635, 0x0fe97c42, 0x02e2724b, 0x15ff6050, 0x18f46e59, 0x3bc54466, 0x36ce4a6f, 0x21d35874, 0x2cd8567d, 0x0c7a37a1, 0x017139a8, 0x166c2bb3, 0x1b6725ba, 0x38560f85, 0x355d018c, 0x22401397, 0x2f4b1d9e, 0x642247e9, 0x692949e0, 0x7e345bfb, 0x733f55f2, 0x500e7fcd, 0x5d0571c4, 0x4a1863df, 0x47136dd6, 0xdccad731, 0xd1c1d938, 0xc6dccb23, 0xcbd7c52a, 0xe8e6ef15, 0xe5ede11c, 0xf2f0f307, 0xfffbfd0e, 0xb492a779, 0xb999a970, 0xae84bb6b, 0xa38fb562, 0x80be9f5d, 0x8db59154, 0x9aa8834f, 0x97a38d46 ]
|
||||
U4 = [ 0x00000000, 0x090d0b0e, 0x121a161c, 0x1b171d12, 0x24342c38, 0x2d392736, 0x362e3a24, 0x3f23312a, 0x48685870, 0x4165537e, 0x5a724e6c, 0x537f4562, 0x6c5c7448, 0x65517f46, 0x7e466254, 0x774b695a, 0x90d0b0e0, 0x99ddbbee, 0x82caa6fc, 0x8bc7adf2, 0xb4e49cd8, 0xbde997d6, 0xa6fe8ac4, 0xaff381ca, 0xd8b8e890, 0xd1b5e39e, 0xcaa2fe8c, 0xc3aff582, 0xfc8cc4a8, 0xf581cfa6, 0xee96d2b4, 0xe79bd9ba, 0x3bbb7bdb, 0x32b670d5, 0x29a16dc7, 0x20ac66c9, 0x1f8f57e3, 0x16825ced, 0x0d9541ff, 0x04984af1, 0x73d323ab, 0x7ade28a5, 0x61c935b7, 0x68c43eb9, 0x57e70f93, 0x5eea049d, 0x45fd198f, 0x4cf01281, 0xab6bcb3b, 0xa266c035, 0xb971dd27, 0xb07cd629, 0x8f5fe703, 0x8652ec0d, 0x9d45f11f, 0x9448fa11, 0xe303934b, 0xea0e9845, 0xf1198557, 0xf8148e59, 0xc737bf73, 0xce3ab47d, 0xd52da96f, 0xdc20a261, 0x766df6ad, 0x7f60fda3, 0x6477e0b1, 0x6d7aebbf, 0x5259da95, 0x5b54d19b, 0x4043cc89, 0x494ec787, 0x3e05aedd, 0x3708a5d3, 0x2c1fb8c1, 0x2512b3cf, 0x1a3182e5, 0x133c89eb, 0x082b94f9, 0x01269ff7, 0xe6bd464d, 0xefb04d43, 0xf4a75051, 0xfdaa5b5f, 0xc2896a75, 0xcb84617b, 0xd0937c69, 0xd99e7767, 0xaed51e3d, 0xa7d81533, 0xbccf0821, 0xb5c2032f, 0x8ae13205, 0x83ec390b, 0x98fb2419, 0x91f62f17, 0x4dd68d76, 0x44db8678, 0x5fcc9b6a, 0x56c19064, 0x69e2a14e, 0x60efaa40, 0x7bf8b752, 0x72f5bc5c, 0x05bed506, 0x0cb3de08, 0x17a4c31a, 0x1ea9c814, 0x218af93e, 0x2887f230, 0x3390ef22, 0x3a9de42c, 0xdd063d96, 0xd40b3698, 0xcf1c2b8a, 0xc6112084, 0xf93211ae, 0xf03f1aa0, 0xeb2807b2, 0xe2250cbc, 0x956e65e6, 0x9c636ee8, 0x877473fa, 0x8e7978f4, 0xb15a49de, 0xb85742d0, 0xa3405fc2, 0xaa4d54cc, 0xecdaf741, 0xe5d7fc4f, 0xfec0e15d, 0xf7cdea53, 0xc8eedb79, 0xc1e3d077, 0xdaf4cd65, 0xd3f9c66b, 0xa4b2af31, 0xadbfa43f, 0xb6a8b92d, 0xbfa5b223, 0x80868309, 0x898b8807, 0x929c9515, 0x9b919e1b, 0x7c0a47a1, 0x75074caf, 0x6e1051bd, 0x671d5ab3, 0x583e6b99, 0x51336097, 0x4a247d85, 0x4329768b, 0x34621fd1, 0x3d6f14df, 0x267809cd, 0x2f7502c3, 0x105633e9, 0x195b38e7, 0x024c25f5, 0x0b412efb, 0xd7618c9a, 0xde6c8794, 0xc57b9a86, 0xcc769188, 0xf355a0a2, 0xfa58abac, 0xe14fb6be, 0xe842bdb0, 0x9f09d4ea, 0x9604dfe4, 0x8d13c2f6, 0x841ec9f8, 0xbb3df8d2, 0xb230f3dc, 0xa927eece, 0xa02ae5c0, 0x47b13c7a, 0x4ebc3774, 0x55ab2a66, 0x5ca62168, 0x63851042, 0x6a881b4c, 0x719f065e, 0x78920d50, 0x0fd9640a, 0x06d46f04, 0x1dc37216, 0x14ce7918, 0x2bed4832, 0x22e0433c, 0x39f75e2e, 0x30fa5520, 0x9ab701ec, 0x93ba0ae2, 0x88ad17f0, 0x81a01cfe, 0xbe832dd4, 0xb78e26da, 0xac993bc8, 0xa59430c6, 0xd2df599c, 0xdbd25292, 0xc0c54f80, 0xc9c8448e, 0xf6eb75a4, 0xffe67eaa, 0xe4f163b8, 0xedfc68b6, 0x0a67b10c, 0x036aba02, 0x187da710, 0x1170ac1e, 0x2e539d34, 0x275e963a, 0x3c498b28, 0x35448026, 0x420fe97c, 0x4b02e272, 0x5015ff60, 0x5918f46e, 0x663bc544, 0x6f36ce4a, 0x7421d358, 0x7d2cd856, 0xa10c7a37, 0xa8017139, 0xb3166c2b, 0xba1b6725, 0x8538560f, 0x8c355d01, 0x97224013, 0x9e2f4b1d, 0xe9642247, 0xe0692949, 0xfb7e345b, 0xf2733f55, 0xcd500e7f, 0xc45d0571, 0xdf4a1863, 0xd647136d, 0x31dccad7, 0x38d1c1d9, 0x23c6dccb, 0x2acbd7c5, 0x15e8e6ef, 0x1ce5ede1, 0x07f2f0f3, 0x0efffbfd, 0x79b492a7, 0x70b999a9, 0x6bae84bb, 0x62a38fb5, 0x5d80be9f, 0x548db591, 0x4f9aa883, 0x4697a38d ]
|
||||
|
||||
def __init__(self, key):
|
||||
|
||||
if len(key) not in (16, 24, 32):
|
||||
raise ValueError('Invalid key size')
|
||||
|
||||
rounds = self.number_of_rounds[len(key)]
|
||||
|
||||
# Encryption round keys
|
||||
self._Ke = [[0] * 4 for i in xrange(rounds + 1)]
|
||||
|
||||
# Decryption round keys
|
||||
self._Kd = [[0] * 4 for i in xrange(rounds + 1)]
|
||||
|
||||
round_key_count = (rounds + 1) * 4
|
||||
KC = len(key) // 4
|
||||
|
||||
# Convert the key into ints
|
||||
tk = [ struct.unpack('>i', key[i:i + 4])[0] for i in xrange(0, len(key), 4) ]
|
||||
|
||||
# Copy values into round key arrays
|
||||
for i in xrange(0, KC):
|
||||
self._Ke[i // 4][i % 4] = tk[i]
|
||||
self._Kd[rounds - (i // 4)][i % 4] = tk[i]
|
||||
|
||||
# Key expansion (fips-197 section 5.2)
|
||||
rconpointer = 0
|
||||
t = KC
|
||||
while t < round_key_count:
|
||||
|
||||
tt = tk[KC - 1]
|
||||
tk[0] ^= ((self.S[(tt >> 16) & 0xFF] << 24) ^
|
||||
(self.S[(tt >> 8) & 0xFF] << 16) ^
|
||||
(self.S[ tt & 0xFF] << 8) ^
|
||||
self.S[(tt >> 24) & 0xFF] ^
|
||||
(self.rcon[rconpointer] << 24))
|
||||
rconpointer += 1
|
||||
|
||||
if KC != 8:
|
||||
for i in xrange(1, KC):
|
||||
tk[i] ^= tk[i - 1]
|
||||
|
||||
# Key expansion for 256-bit keys is "slightly different" (fips-197)
|
||||
else:
|
||||
for i in xrange(1, KC // 2):
|
||||
tk[i] ^= tk[i - 1]
|
||||
tt = tk[KC // 2 - 1]
|
||||
|
||||
tk[KC // 2] ^= (self.S[ tt & 0xFF] ^
|
||||
(self.S[(tt >> 8) & 0xFF] << 8) ^
|
||||
(self.S[(tt >> 16) & 0xFF] << 16) ^
|
||||
(self.S[(tt >> 24) & 0xFF] << 24))
|
||||
|
||||
for i in xrange(KC // 2 + 1, KC):
|
||||
tk[i] ^= tk[i - 1]
|
||||
|
||||
# Copy values into round key arrays
|
||||
j = 0
|
||||
while j < KC and t < round_key_count:
|
||||
self._Ke[t // 4][t % 4] = tk[j]
|
||||
self._Kd[rounds - (t // 4)][t % 4] = tk[j]
|
||||
j += 1
|
||||
t += 1
|
||||
|
||||
# Inverse-Cipher-ify the decryption round key (fips-197 section 5.3)
|
||||
for r in xrange(1, rounds):
|
||||
for j in xrange(0, 4):
|
||||
tt = self._Kd[r][j]
|
||||
self._Kd[r][j] = (self.U1[(tt >> 24) & 0xFF] ^
|
||||
self.U2[(tt >> 16) & 0xFF] ^
|
||||
self.U3[(tt >> 8) & 0xFF] ^
|
||||
self.U4[ tt & 0xFF])
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
'Encrypt a block of plain text using the AES block cipher.'
|
||||
|
||||
if len(plaintext) != 16:
|
||||
raise ValueError('wrong block length')
|
||||
|
||||
rounds = len(self._Ke) - 1
|
||||
(s1, s2, s3) = [1, 2, 3]
|
||||
a = [0, 0, 0, 0]
|
||||
|
||||
# Convert plaintext to (ints ^ key)
|
||||
t = [(_compact_word(plaintext[4 * i:4 * i + 4]) ^ self._Ke[0][i]) for i in xrange(0, 4)]
|
||||
|
||||
# Apply round transforms
|
||||
for r in xrange(1, rounds):
|
||||
for i in xrange(0, 4):
|
||||
a[i] = (self.T1[(t[ i ] >> 24) & 0xFF] ^
|
||||
self.T2[(t[(i + s1) % 4] >> 16) & 0xFF] ^
|
||||
self.T3[(t[(i + s2) % 4] >> 8) & 0xFF] ^
|
||||
self.T4[ t[(i + s3) % 4] & 0xFF] ^
|
||||
self._Ke[r][i])
|
||||
t = copy.copy(a)
|
||||
|
||||
# The last round is special
|
||||
result = [ ]
|
||||
for i in xrange(0, 4):
|
||||
tt = self._Ke[rounds][i]
|
||||
result.append((self.S[(t[ i ] >> 24) & 0xFF] ^ (tt >> 24)) & 0xFF)
|
||||
result.append((self.S[(t[(i + s1) % 4] >> 16) & 0xFF] ^ (tt >> 16)) & 0xFF)
|
||||
result.append((self.S[(t[(i + s2) % 4] >> 8) & 0xFF] ^ (tt >> 8)) & 0xFF)
|
||||
result.append((self.S[ t[(i + s3) % 4] & 0xFF] ^ tt ) & 0xFF)
|
||||
|
||||
return result
|
||||
|
||||
def decrypt(self, ciphertext):
|
||||
'Decrypt a block of cipher text using the AES block cipher.'
|
||||
|
||||
if len(ciphertext) != 16:
|
||||
raise ValueError('wrong block length')
|
||||
|
||||
rounds = len(self._Kd) - 1
|
||||
(s1, s2, s3) = [3, 2, 1]
|
||||
a = [0, 0, 0, 0]
|
||||
|
||||
# Convert ciphertext to (ints ^ key)
|
||||
t = [(_compact_word(ciphertext[4 * i:4 * i + 4]) ^ self._Kd[0][i]) for i in xrange(0, 4)]
|
||||
|
||||
# Apply round transforms
|
||||
for r in xrange(1, rounds):
|
||||
for i in xrange(0, 4):
|
||||
a[i] = (self.T5[(t[ i ] >> 24) & 0xFF] ^
|
||||
self.T6[(t[(i + s1) % 4] >> 16) & 0xFF] ^
|
||||
self.T7[(t[(i + s2) % 4] >> 8) & 0xFF] ^
|
||||
self.T8[ t[(i + s3) % 4] & 0xFF] ^
|
||||
self._Kd[r][i])
|
||||
t = copy.copy(a)
|
||||
|
||||
# The last round is special
|
||||
result = [ ]
|
||||
for i in xrange(0, 4):
|
||||
tt = self._Kd[rounds][i]
|
||||
result.append((self.Si[(t[ i ] >> 24) & 0xFF] ^ (tt >> 24)) & 0xFF)
|
||||
result.append((self.Si[(t[(i + s1) % 4] >> 16) & 0xFF] ^ (tt >> 16)) & 0xFF)
|
||||
result.append((self.Si[(t[(i + s2) % 4] >> 8) & 0xFF] ^ (tt >> 8)) & 0xFF)
|
||||
result.append((self.Si[ t[(i + s3) % 4] & 0xFF] ^ tt ) & 0xFF)
|
||||
|
||||
return result
|
||||
|
||||
|
||||
class Counter(object):
|
||||
'''A counter object for the Counter (CTR) mode of operation.
|
||||
|
||||
To create a custom counter, you can usually just override the
|
||||
increment method.'''
|
||||
|
||||
def __init__(self, initial_value = 1):
|
||||
|
||||
# Convert the value into an array of bytes long
|
||||
self._counter = [ ((initial_value >> i) % 256) for i in xrange(128 - 8, -1, -8) ]
|
||||
|
||||
value = property(lambda s: s._counter)
|
||||
|
||||
def increment(self):
|
||||
'''Increment the counter (overflow rolls back to 0).'''
|
||||
|
||||
for i in xrange(len(self._counter) - 1, -1, -1):
|
||||
self._counter[i] += 1
|
||||
|
||||
if self._counter[i] < 256: break
|
||||
|
||||
# Carry the one
|
||||
self._counter[i] = 0
|
||||
|
||||
# Overflow
|
||||
else:
|
||||
self._counter = [ 0 ] * len(self._counter)
|
||||
|
||||
|
||||
class AESBlockModeOfOperation(object):
|
||||
'''Super-class for AES modes of operation that require blocks.'''
|
||||
def __init__(self, key):
|
||||
self._aes = AES(key)
|
||||
|
||||
def decrypt(self, ciphertext):
|
||||
raise Exception('not implemented')
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
raise Exception('not implemented')
|
||||
|
||||
|
||||
class AESStreamModeOfOperation(AESBlockModeOfOperation):
|
||||
'''Super-class for AES modes of operation that are stream-ciphers.'''
|
||||
|
||||
class AESSegmentModeOfOperation(AESStreamModeOfOperation):
|
||||
'''Super-class for AES modes of operation that segment data.'''
|
||||
|
||||
segment_bytes = 16
|
||||
|
||||
|
||||
|
||||
class AESModeOfOperationECB(AESBlockModeOfOperation):
|
||||
'''AES Electronic Codebook Mode of Operation.
|
||||
|
||||
o Block-cipher, so data must be padded to 16 byte boundaries
|
||||
|
||||
Security Notes:
|
||||
o This mode is not recommended
|
||||
o Any two identical blocks produce identical encrypted values,
|
||||
exposing data patterns. (See the image of Tux on wikipedia)
|
||||
|
||||
Also see:
|
||||
o https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Electronic_codebook_.28ECB.29
|
||||
o See NIST SP800-38A (http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf); section 6.1'''
|
||||
|
||||
|
||||
name = "Electronic Codebook (ECB)"
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
if len(plaintext) != 16:
|
||||
raise ValueError('plaintext block must be 16 bytes')
|
||||
|
||||
plaintext = _string_to_bytes(plaintext)
|
||||
return _bytes_to_string(self._aes.encrypt(plaintext))
|
||||
|
||||
def decrypt(self, ciphertext):
|
||||
if len(ciphertext) != 16:
|
||||
raise ValueError('ciphertext block must be 16 bytes')
|
||||
|
||||
ciphertext = _string_to_bytes(ciphertext)
|
||||
return _bytes_to_string(self._aes.decrypt(ciphertext))
|
||||
|
||||
|
||||
|
||||
class AESModeOfOperationCBC(AESBlockModeOfOperation):
|
||||
'''AES Cipher-Block Chaining Mode of Operation.
|
||||
|
||||
o The Initialization Vector (IV)
|
||||
o Block-cipher, so data must be padded to 16 byte boundaries
|
||||
o An incorrect initialization vector will only cause the first
|
||||
block to be corrupt; all other blocks will be intact
|
||||
o A corrupt bit in the cipher text will cause a block to be
|
||||
corrupted, and the next block to be inverted, but all other
|
||||
blocks will be intact.
|
||||
|
||||
Security Notes:
|
||||
o This method (and CTR) ARE recommended.
|
||||
|
||||
Also see:
|
||||
o https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher-block_chaining_.28CBC.29
|
||||
o See NIST SP800-38A (http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf); section 6.2'''
|
||||
|
||||
|
||||
name = "Cipher-Block Chaining (CBC)"
|
||||
|
||||
def __init__(self, key, iv = None):
|
||||
if iv is None:
|
||||
self._last_cipherblock = [ 0 ] * 16
|
||||
elif len(iv) != 16:
|
||||
raise ValueError('initialization vector must be 16 bytes')
|
||||
else:
|
||||
self._last_cipherblock = _string_to_bytes(iv)
|
||||
|
||||
AESBlockModeOfOperation.__init__(self, key)
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
if len(plaintext) != 16:
|
||||
raise ValueError('plaintext block must be 16 bytes')
|
||||
|
||||
plaintext = _string_to_bytes(plaintext)
|
||||
precipherblock = [ (p ^ l) for (p, l) in zip(plaintext, self._last_cipherblock) ]
|
||||
self._last_cipherblock = self._aes.encrypt(precipherblock)
|
||||
|
||||
return _bytes_to_string(self._last_cipherblock)
|
||||
|
||||
def decrypt(self, ciphertext):
|
||||
if len(ciphertext) != 16:
|
||||
raise ValueError('ciphertext block must be 16 bytes')
|
||||
|
||||
cipherblock = _string_to_bytes(ciphertext)
|
||||
plaintext = [ (p ^ l) for (p, l) in zip(self._aes.decrypt(cipherblock), self._last_cipherblock) ]
|
||||
self._last_cipherblock = cipherblock
|
||||
|
||||
return _bytes_to_string(plaintext)
|
||||
|
||||
|
||||
|
||||
class AESModeOfOperationCFB(AESSegmentModeOfOperation):
|
||||
'''AES Cipher Feedback Mode of Operation.
|
||||
|
||||
o A stream-cipher, so input does not need to be padded to blocks,
|
||||
but does need to be padded to segment_size
|
||||
|
||||
Also see:
|
||||
o https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_feedback_.28CFB.29
|
||||
o See NIST SP800-38A (http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf); section 6.3'''
|
||||
|
||||
|
||||
name = "Cipher Feedback (CFB)"
|
||||
|
||||
def __init__(self, key, iv, segment_size = 1):
|
||||
if segment_size == 0: segment_size = 1
|
||||
|
||||
if iv is None:
|
||||
self._shift_register = [ 0 ] * 16
|
||||
elif len(iv) != 16:
|
||||
raise ValueError('initialization vector must be 16 bytes')
|
||||
else:
|
||||
self._shift_register = _string_to_bytes(iv)
|
||||
|
||||
self._segment_bytes = segment_size
|
||||
|
||||
AESBlockModeOfOperation.__init__(self, key)
|
||||
|
||||
segment_bytes = property(lambda s: s._segment_bytes)
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
if len(plaintext) % self._segment_bytes != 0:
|
||||
raise ValueError('plaintext block must be a multiple of segment_size')
|
||||
|
||||
plaintext = _string_to_bytes(plaintext)
|
||||
|
||||
# Break block into segments
|
||||
encrypted = [ ]
|
||||
for i in xrange(0, len(plaintext), self._segment_bytes):
|
||||
plaintext_segment = plaintext[i: i + self._segment_bytes]
|
||||
xor_segment = self._aes.encrypt(self._shift_register)[:len(plaintext_segment)]
|
||||
cipher_segment = [ (p ^ x) for (p, x) in zip(plaintext_segment, xor_segment) ]
|
||||
|
||||
# Shift the top bits out and the ciphertext in
|
||||
self._shift_register = _concat_list(self._shift_register[len(cipher_segment):], cipher_segment)
|
||||
|
||||
encrypted.extend(cipher_segment)
|
||||
|
||||
return _bytes_to_string(encrypted)
|
||||
|
||||
def decrypt(self, ciphertext):
|
||||
if len(ciphertext) % self._segment_bytes != 0:
|
||||
raise ValueError('ciphertext block must be a multiple of segment_size')
|
||||
|
||||
ciphertext = _string_to_bytes(ciphertext)
|
||||
|
||||
# Break block into segments
|
||||
decrypted = [ ]
|
||||
for i in xrange(0, len(ciphertext), self._segment_bytes):
|
||||
cipher_segment = ciphertext[i: i + self._segment_bytes]
|
||||
xor_segment = self._aes.encrypt(self._shift_register)[:len(cipher_segment)]
|
||||
plaintext_segment = [ (p ^ x) for (p, x) in zip(cipher_segment, xor_segment) ]
|
||||
|
||||
# Shift the top bits out and the ciphertext in
|
||||
self._shift_register = _concat_list(self._shift_register[len(cipher_segment):], cipher_segment)
|
||||
|
||||
decrypted.extend(plaintext_segment)
|
||||
|
||||
return _bytes_to_string(decrypted)
|
||||
|
||||
|
||||
|
||||
class AESModeOfOperationOFB(AESStreamModeOfOperation):
|
||||
'''AES Output Feedback Mode of Operation.
|
||||
|
||||
o A stream-cipher, so input does not need to be padded to blocks,
|
||||
allowing arbitrary length data.
|
||||
o A bit twiddled in the cipher text, twiddles the same bit in the
|
||||
same bit in the plain text, which can be useful for error
|
||||
correction techniques.
|
||||
|
||||
Also see:
|
||||
o https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Output_feedback_.28OFB.29
|
||||
o See NIST SP800-38A (http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf); section 6.4'''
|
||||
|
||||
|
||||
name = "Output Feedback (OFB)"
|
||||
|
||||
def __init__(self, key, iv = None):
|
||||
if iv is None:
|
||||
self._last_precipherblock = [ 0 ] * 16
|
||||
elif len(iv) != 16:
|
||||
raise ValueError('initialization vector must be 16 bytes')
|
||||
else:
|
||||
self._last_precipherblock = _string_to_bytes(iv)
|
||||
|
||||
self._remaining_block = [ ]
|
||||
|
||||
AESBlockModeOfOperation.__init__(self, key)
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
encrypted = [ ]
|
||||
for p in _string_to_bytes(plaintext):
|
||||
if len(self._remaining_block) == 0:
|
||||
self._remaining_block = self._aes.encrypt(self._last_precipherblock)
|
||||
self._last_precipherblock = [ ]
|
||||
precipherbyte = self._remaining_block.pop(0)
|
||||
self._last_precipherblock.append(precipherbyte)
|
||||
cipherbyte = p ^ precipherbyte
|
||||
encrypted.append(cipherbyte)
|
||||
|
||||
return _bytes_to_string(encrypted)
|
||||
|
||||
def decrypt(self, ciphertext):
|
||||
# AES-OFB is symetric
|
||||
return self.encrypt(ciphertext)
|
||||
|
||||
|
||||
|
||||
class AESModeOfOperationCTR(AESStreamModeOfOperation):
|
||||
'''AES Counter Mode of Operation.
|
||||
|
||||
o A stream-cipher, so input does not need to be padded to blocks,
|
||||
allowing arbitrary length data.
|
||||
o The counter must be the same size as the key size (ie. len(key))
|
||||
o Each block independant of the other, so a corrupt byte will not
|
||||
damage future blocks.
|
||||
o Each block has a uniue counter value associated with it, which
|
||||
contributes to the encrypted value, so no data patterns are
|
||||
leaked.
|
||||
o Also known as: Counter Mode (CM), Integer Counter Mode (ICM) and
|
||||
Segmented Integer Counter (SIC
|
||||
|
||||
Security Notes:
|
||||
o This method (and CBC) ARE recommended.
|
||||
o Each message block is associated with a counter value which must be
|
||||
unique for ALL messages with the same key. Otherwise security may be
|
||||
compromised.
|
||||
|
||||
Also see:
|
||||
|
||||
o https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Counter_.28CTR.29
|
||||
o See NIST SP800-38A (http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf); section 6.5
|
||||
and Appendix B for managing the initial counter'''
|
||||
|
||||
|
||||
name = "Counter (CTR)"
|
||||
|
||||
def __init__(self, key, counter = None):
|
||||
AESBlockModeOfOperation.__init__(self, key)
|
||||
|
||||
if counter is None:
|
||||
counter = Counter()
|
||||
|
||||
self._counter = counter
|
||||
self._remaining_counter = [ ]
|
||||
|
||||
def encrypt(self, plaintext):
|
||||
while len(self._remaining_counter) < len(plaintext):
|
||||
self._remaining_counter += self._aes.encrypt(self._counter.value)
|
||||
self._counter.increment()
|
||||
|
||||
plaintext = _string_to_bytes(plaintext)
|
||||
|
||||
encrypted = [ (p ^ c) for (p, c) in zip(plaintext, self._remaining_counter) ]
|
||||
self._remaining_counter = self._remaining_counter[len(encrypted):]
|
||||
|
||||
return _bytes_to_string(encrypted)
|
||||
|
||||
def decrypt(self, crypttext):
|
||||
# AES-CTR is symetric
|
||||
return self.encrypt(crypttext)
|
||||
|
||||
|
||||
# Simple lookup table for each mode
|
||||
AESModesOfOperation = dict(
|
||||
ctr = AESModeOfOperationCTR,
|
||||
cbc = AESModeOfOperationCBC,
|
||||
cfb = AESModeOfOperationCFB,
|
||||
ecb = AESModeOfOperationECB,
|
||||
ofb = AESModeOfOperationOFB,
|
||||
)
|
||||
@@ -1,227 +0,0 @@
|
||||
# The MIT License (MIT)
|
||||
#
|
||||
# Copyright (c) 2014 Richard Moore
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documentation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furnished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
|
||||
|
||||
from .aes import AESBlockModeOfOperation, AESSegmentModeOfOperation, AESStreamModeOfOperation
|
||||
from .util import append_PKCS7_padding, strip_PKCS7_padding, to_bufferable
|
||||
|
||||
|
||||
# First we inject three functions to each of the modes of operations
|
||||
#
|
||||
# _can_consume(size)
|
||||
# - Given a size, determine how many bytes could be consumed in
|
||||
# a single call to either the decrypt or encrypt method
|
||||
#
|
||||
# _final_encrypt(data, padding = PADDING_DEFAULT)
|
||||
# - call and return encrypt on this (last) chunk of data,
|
||||
# padding as necessary; this will always be at least 16
|
||||
# bytes unless the total incoming input was less than 16
|
||||
# bytes
|
||||
#
|
||||
# _final_decrypt(data, padding = PADDING_DEFAULT)
|
||||
# - same as _final_encrypt except for decrypt, for
|
||||
# stripping off padding
|
||||
#
|
||||
|
||||
PADDING_NONE = 'none'
|
||||
PADDING_DEFAULT = 'default'
|
||||
|
||||
# @TODO: Ciphertext stealing and explicit PKCS#7
|
||||
# PADDING_CIPHERTEXT_STEALING
|
||||
# PADDING_PKCS7
|
||||
|
||||
# ECB and CBC are block-only ciphers
|
||||
|
||||
def _block_can_consume(self, size):
|
||||
if size >= 16: return 16
|
||||
return 0
|
||||
|
||||
# After padding, we may have more than one block
|
||||
def _block_final_encrypt(self, data, padding = PADDING_DEFAULT):
|
||||
if padding == PADDING_DEFAULT:
|
||||
data = append_PKCS7_padding(data)
|
||||
|
||||
elif padding == PADDING_NONE:
|
||||
if len(data) != 16:
|
||||
raise Exception('invalid data length for final block')
|
||||
else:
|
||||
raise Exception('invalid padding option')
|
||||
|
||||
if len(data) == 32:
|
||||
return self.encrypt(data[:16]) + self.encrypt(data[16:])
|
||||
|
||||
return self.encrypt(data)
|
||||
|
||||
|
||||
def _block_final_decrypt(self, data, padding = PADDING_DEFAULT):
|
||||
if padding == PADDING_DEFAULT:
|
||||
return strip_PKCS7_padding(self.decrypt(data))
|
||||
|
||||
if padding == PADDING_NONE:
|
||||
if len(data) != 16:
|
||||
raise Exception('invalid data length for final block')
|
||||
return self.decrypt(data)
|
||||
|
||||
raise Exception('invalid padding option')
|
||||
|
||||
AESBlockModeOfOperation._can_consume = _block_can_consume
|
||||
AESBlockModeOfOperation._final_encrypt = _block_final_encrypt
|
||||
AESBlockModeOfOperation._final_decrypt = _block_final_decrypt
|
||||
|
||||
|
||||
|
||||
# CFB is a segment cipher
|
||||
|
||||
def _segment_can_consume(self, size):
|
||||
return self.segment_bytes * int(size // self.segment_bytes)
|
||||
|
||||
# CFB can handle a non-segment-sized block at the end using the remaining cipherblock
|
||||
def _segment_final_encrypt(self, data, padding = PADDING_DEFAULT):
|
||||
if padding != PADDING_DEFAULT:
|
||||
raise Exception('invalid padding option')
|
||||
|
||||
faux_padding = (chr(0) * (self.segment_bytes - (len(data) % self.segment_bytes)))
|
||||
padded = data + to_bufferable(faux_padding)
|
||||
return self.encrypt(padded)[:len(data)]
|
||||
|
||||
# CFB can handle a non-segment-sized block at the end using the remaining cipherblock
|
||||
def _segment_final_decrypt(self, data, padding = PADDING_DEFAULT):
|
||||
if padding != PADDING_DEFAULT:
|
||||
raise Exception('invalid padding option')
|
||||
|
||||
faux_padding = (chr(0) * (self.segment_bytes - (len(data) % self.segment_bytes)))
|
||||
padded = data + to_bufferable(faux_padding)
|
||||
return self.decrypt(padded)[:len(data)]
|
||||
|
||||
AESSegmentModeOfOperation._can_consume = _segment_can_consume
|
||||
AESSegmentModeOfOperation._final_encrypt = _segment_final_encrypt
|
||||
AESSegmentModeOfOperation._final_decrypt = _segment_final_decrypt
|
||||
|
||||
|
||||
|
||||
# OFB and CTR are stream ciphers
|
||||
|
||||
def _stream_can_consume(self, size):
|
||||
return size
|
||||
|
||||
def _stream_final_encrypt(self, data, padding = PADDING_DEFAULT):
|
||||
if padding not in [PADDING_NONE, PADDING_DEFAULT]:
|
||||
raise Exception('invalid padding option')
|
||||
|
||||
return self.encrypt(data)
|
||||
|
||||
def _stream_final_decrypt(self, data, padding = PADDING_DEFAULT):
|
||||
if padding not in [PADDING_NONE, PADDING_DEFAULT]:
|
||||
raise Exception('invalid padding option')
|
||||
|
||||
return self.decrypt(data)
|
||||
|
||||
AESStreamModeOfOperation._can_consume = _stream_can_consume
|
||||
AESStreamModeOfOperation._final_encrypt = _stream_final_encrypt
|
||||
AESStreamModeOfOperation._final_decrypt = _stream_final_decrypt
|
||||
|
||||
|
||||
|
||||
class BlockFeeder(object):
|
||||
'''The super-class for objects to handle chunking a stream of bytes
|
||||
into the appropriate block size for the underlying mode of operation
|
||||
and applying (or stripping) padding, as necessary.'''
|
||||
|
||||
def __init__(self, mode, feed, final, padding = PADDING_DEFAULT):
|
||||
self._mode = mode
|
||||
self._feed = feed
|
||||
self._final = final
|
||||
self._buffer = to_bufferable("")
|
||||
self._padding = padding
|
||||
|
||||
def feed(self, data = None):
|
||||
'''Provide bytes to encrypt (or decrypt), returning any bytes
|
||||
possible from this or any previous calls to feed.
|
||||
|
||||
Call with None or an empty string to flush the mode of
|
||||
operation and return any final bytes; no further calls to
|
||||
feed may be made.'''
|
||||
|
||||
if self._buffer is None:
|
||||
raise ValueError('already finished feeder')
|
||||
|
||||
# Finalize; process the spare bytes we were keeping
|
||||
if not data:
|
||||
result = self._final(self._buffer, self._padding)
|
||||
self._buffer = None
|
||||
return result
|
||||
|
||||
self._buffer += to_bufferable(data)
|
||||
|
||||
# We keep 16 bytes around so we can determine padding
|
||||
result = to_bufferable('')
|
||||
while len(self._buffer) > 16:
|
||||
can_consume = self._mode._can_consume(len(self._buffer) - 16)
|
||||
if can_consume == 0: break
|
||||
result += self._feed(self._buffer[:can_consume])
|
||||
self._buffer = self._buffer[can_consume:]
|
||||
|
||||
return result
|
||||
|
||||
|
||||
class Encrypter(BlockFeeder):
|
||||
'Accepts bytes of plaintext and returns encrypted ciphertext.'
|
||||
|
||||
def __init__(self, mode, padding = PADDING_DEFAULT):
|
||||
BlockFeeder.__init__(self, mode, mode.encrypt, mode._final_encrypt, padding)
|
||||
|
||||
|
||||
class Decrypter(BlockFeeder):
|
||||
'Accepts bytes of ciphertext and returns decrypted plaintext.'
|
||||
|
||||
def __init__(self, mode, padding = PADDING_DEFAULT):
|
||||
BlockFeeder.__init__(self, mode, mode.decrypt, mode._final_decrypt, padding)
|
||||
|
||||
|
||||
# 8kb blocks
|
||||
BLOCK_SIZE = (1 << 13)
|
||||
|
||||
def _feed_stream(feeder, in_stream, out_stream, block_size = BLOCK_SIZE):
|
||||
'Uses feeder to read and convert from in_stream and write to out_stream.'
|
||||
|
||||
while True:
|
||||
chunk = in_stream.read(block_size)
|
||||
if not chunk:
|
||||
break
|
||||
converted = feeder.feed(chunk)
|
||||
out_stream.write(converted)
|
||||
converted = feeder.feed()
|
||||
out_stream.write(converted)
|
||||
|
||||
|
||||
def encrypt_stream(mode, in_stream, out_stream, block_size = BLOCK_SIZE, padding = PADDING_DEFAULT):
|
||||
'Encrypts a stream of bytes from in_stream to out_stream using mode.'
|
||||
|
||||
encrypter = Encrypter(mode, padding = padding)
|
||||
_feed_stream(encrypter, in_stream, out_stream, block_size)
|
||||
|
||||
|
||||
def decrypt_stream(mode, in_stream, out_stream, block_size = BLOCK_SIZE, padding = PADDING_DEFAULT):
|
||||
'Decrypts a stream of bytes from in_stream to out_stream using mode.'
|
||||
|
||||
decrypter = Decrypter(mode, padding = padding)
|
||||
_feed_stream(decrypter, in_stream, out_stream, block_size)
|
||||
@@ -1,201 +0,0 @@
|
||||
# The MIT License (MIT)
|
||||
#
|
||||
# Copyright (c) 2017 Diego Fernando Nieto
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documentation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furnished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
|
||||
# This is a pure-Python implementation of the AES algorithm and AES common
|
||||
# modes of operation.
|
||||
|
||||
# See: https://en.wikipedia.org/wiki/Advanced_Encryption_Standard
|
||||
|
||||
# Honestly, the best description of the modes of operations are the wonderful
|
||||
# diagrams on Wikipedia. They explain in moments what my words could never
|
||||
# achieve. Hence the inline documentation here is sparer than I'd prefer.
|
||||
# See: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation
|
||||
|
||||
# Supported key sizes:
|
||||
# 128-bit
|
||||
# 192-bit
|
||||
# 256-bit
|
||||
|
||||
|
||||
# Supported modes of operation:
|
||||
# ECB - Electronic Codebook
|
||||
# CBC - Cipher-Block Chaining
|
||||
# CFB - Cipher Feedback
|
||||
# OFB - Output Feedback
|
||||
# CTR - Counter
|
||||
|
||||
|
||||
# See the README.md for API details and general information.
|
||||
|
||||
import base64
|
||||
import hashlib
|
||||
import binascii
|
||||
from .aes import AES, AESModeOfOperationCTR, AESModeOfOperationCBC, AESModeOfOperationCFB, AESModeOfOperationECB, AESModeOfOperationOFB, AESModesOfOperation, Counter
|
||||
|
||||
from os import urandom
|
||||
import os
|
||||
|
||||
BS = 32
|
||||
pad = lambda s: s + (BS - len(s) % BS) * chr(BS - len(s) % BS)
|
||||
unpad = lambda s : s[:-ord(s[len(s)-1:])]
|
||||
|
||||
import math
|
||||
import random
|
||||
|
||||
"""
|
||||
AES: http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
|
||||
|
||||
JavaScript: https://github.com/mdp/gibberish-aes
|
||||
|
||||
Python: https://stackoverflow.com/questions/12221484/how-come-i-cant-decrypted-my-aes-encrypted-message-on-someone-elses-aes-decrypt
|
||||
https://stackoverflow.com/questions/13907841/implement-openssl-aes-encryption-in-python
|
||||
https://stackoverflow.com/questions/16761458/how-to-aes-encrypt-decrypt-files-using-python-pycrypto-in-an-openssl-compatible
|
||||
|
||||
|
||||
"""
|
||||
|
||||
|
||||
def randArr ( num ):
|
||||
"""
|
||||
JavaScript Code:
|
||||
|
||||
var result = [], i;
|
||||
for (i = 0; i < num; i++) {
|
||||
result = result.concat(Math.floor(Math.random() * 256));
|
||||
}
|
||||
return result;
|
||||
"""
|
||||
return map( lambda i: math.floor(random.random() * 256 ), xrange(num) )
|
||||
|
||||
def s2a(s, binary):
|
||||
"""
|
||||
JavaScript Code:
|
||||
|
||||
var array = [], i;
|
||||
if (! binary) {
|
||||
string = enc_utf8(string);
|
||||
}
|
||||
for (i = 0; i < string.length; i++) {
|
||||
array[i] = string.charCodeAt(i);
|
||||
}
|
||||
return array;
|
||||
"""
|
||||
return map( lambda s: ord(s), list(s) )
|
||||
|
||||
def openSSLKey(passwordArr, saltArr, Nr, Nk):
|
||||
# Nr: Default to 256 Bit Encryption
|
||||
# // Number of rounds depends on the size of the AES in use
|
||||
# // 3 rounds for 256
|
||||
# // 2 rounds for the key, 1 for the IV
|
||||
# // 2 rounds for 128
|
||||
# // 1 round for the key, 1 round for the IV
|
||||
# // 3 rounds for 192 since it's not evenly divided by 128 bits
|
||||
|
||||
|
||||
# if !Nr: Nr = 14
|
||||
# if !Nk: Nk = 8
|
||||
|
||||
# if Nr >= 12: rounds = 3
|
||||
# else: rounds = 2
|
||||
|
||||
# key = []
|
||||
# iv = []
|
||||
# md5_hash = []
|
||||
# result = []
|
||||
# data00 = passwordArr + saltArr
|
||||
|
||||
"""
|
||||
JavaScript Code:
|
||||
|
||||
var rounds = Nr >= 12 ? 3: 2,
|
||||
key = [],
|
||||
iv = [],
|
||||
md5_hash = [],
|
||||
result = [],
|
||||
data00 = passwordArr.concat(saltArr),
|
||||
i;
|
||||
md5_hash[0] = MD5(data00);
|
||||
result = md5_hash[0];
|
||||
for (i = 1; i < rounds; i++) {
|
||||
md5_hash[i] = MD5(md5_hash[i - 1].concat(data00));
|
||||
result = result.concat(md5_hash[i]);
|
||||
}
|
||||
key = result.slice(0, 4 * Nk);
|
||||
iv = result.slice(4 * Nk, 4 * Nk + 16);
|
||||
return {
|
||||
key: key,
|
||||
iv: iv
|
||||
};
|
||||
|
||||
"""
|
||||
pass
|
||||
|
||||
def derive_key_and_iv(password, salt, key_length, iv_length):
|
||||
d = d_i = ''
|
||||
while len(d) < key_length + iv_length:
|
||||
d_i = hashlib.md5(d_i + password + salt).digest()
|
||||
d += d_i
|
||||
return d[:key_length], d[key_length:key_length+iv_length]
|
||||
|
||||
|
||||
class AESCipher:
|
||||
def __init__(self):
|
||||
pass
|
||||
def encrypt(self, plaintext, password, key_length=32):
|
||||
data = ""
|
||||
bs = 16
|
||||
salt = Random.new().read(bs - len('Salted__'))
|
||||
|
||||
key, iv = derive_key_and_iv(password, salt, key_length, bs)
|
||||
cipher = AESModeOfOperationCBC(key, iv)
|
||||
|
||||
data += 'Salted__' + salt
|
||||
chunk = plaintext
|
||||
|
||||
if len(chunk) == 0 or len(chunk) % bs != 0:
|
||||
padding_length = (bs - len(chunk) % bs) or bs
|
||||
chunk += padding_length * chr(padding_length)
|
||||
|
||||
data += cipher.encrypt( chunk )
|
||||
return base64.b64encode(data)
|
||||
|
||||
def decrypt(self, data, password, key_length=32):
|
||||
data = base64.b64decode(data)
|
||||
bs = 16
|
||||
salt = data[len("Salted__"): 16]
|
||||
data = data[len("Salted__")+len(salt): ]
|
||||
|
||||
key, iv = derive_key_and_iv(password, salt, key_length, bs)
|
||||
cipher = AESModeOfOperationCBC(key, iv)
|
||||
|
||||
decryptedBytes = ""
|
||||
for x in range(len(data)//16):
|
||||
#Decrypt it
|
||||
blockBytes = data[x*16 : (x*16)+16]
|
||||
decryptedBytes += cipher.decrypt( blockBytes )
|
||||
|
||||
padding_length = ord(decryptedBytes[-1])
|
||||
|
||||
return decryptedBytes[:-padding_length]
|
||||
|
||||
|
||||
|
||||
@@ -1,60 +0,0 @@
|
||||
# The MIT License (MIT)
|
||||
#
|
||||
# Copyright (c) 2014 Richard Moore
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documentation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furnished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
|
||||
# Why to_bufferable?
|
||||
# Python 3 is very different from Python 2.x when it comes to strings of text
|
||||
# and strings of bytes; in Python 3, strings of bytes do not exist, instead to
|
||||
# represent arbitrary binary data, we must use the "bytes" object. This method
|
||||
# ensures the object behaves as we need it to.
|
||||
|
||||
def to_bufferable(binary):
|
||||
return binary
|
||||
|
||||
def _get_byte(c):
|
||||
return ord(c)
|
||||
|
||||
try:
|
||||
xrange
|
||||
except:
|
||||
|
||||
def to_bufferable(binary):
|
||||
if isinstance(binary, bytes):
|
||||
return binary
|
||||
return bytes(ord(b) for b in binary)
|
||||
|
||||
def _get_byte(c):
|
||||
return c
|
||||
|
||||
def append_PKCS7_padding(data):
|
||||
pad = 16 - (len(data) % 16)
|
||||
return data + to_bufferable(chr(pad) * pad)
|
||||
|
||||
def strip_PKCS7_padding(data):
|
||||
if len(data) % 16 != 0:
|
||||
raise ValueError("invalid length")
|
||||
|
||||
pad = _get_byte(data[-1])
|
||||
|
||||
if pad > 16:
|
||||
raise ValueError("invalid padding byte")
|
||||
|
||||
return data[:-pad]
|
||||
@@ -497,7 +497,10 @@ class UnshortenIt(object):
|
||||
if 'myfoldersakstream.php' in uri or '/verys/' in uri:
|
||||
return uri, 0
|
||||
r = None
|
||||
import pyaes
|
||||
try:
|
||||
from Cryptodome.Cipher import AES
|
||||
except:
|
||||
from Crypto.Cipher import AES
|
||||
|
||||
def decrypt(str):
|
||||
str = str.replace("_ppl_", "+").replace("_eqq_", "=").replace("_sll_", "/")
|
||||
@@ -505,7 +508,7 @@ class UnshortenIt(object):
|
||||
key = "naphajU2usWUswec"
|
||||
decoded = b64decode(str)
|
||||
decoded = decoded + '\0' * (len(decoded) % 16)
|
||||
crypt_object = pyaes.AESModeOfOperationCBC(key, iv)
|
||||
crypt_object = AES.new(key, AES.MODE_CBC, iv)
|
||||
decrypted = ''
|
||||
for p in range(0, len(decoded), 16):
|
||||
decrypted += crypt_object.decrypt(decoded[p:p + 16]).replace('\0', '')
|
||||
|
||||
Reference in New Issue
Block a user