FM / Cipher

/opt/imunify360/venv/lib/python3.11/site-packages/Crypto/Cipher/

/opt/imunify360/venv/lib/python3.11/site-packages/Crypto/Cipher

Name	Size	Mode	Actions
__pycache__/	-	0755	rm
AES.py	8918	0644	edit dl rm
AES.pyi	3716	0644	edit dl rm
ARC2.py	7010	0644	edit dl rm
ARC2.pyi	980	0644	edit dl rm
ARC4.py	5116	0644	edit dl rm
ARC4.pyi	413	0644	edit dl rm
Blowfish.py	5964	0644	edit dl rm
Blowfish.pyi	1016	0644	edit dl rm
CAST.py	6071	0644	edit dl rm
CAST.pyi	981	0644	edit dl rm
ChaCha20.py	10736	0644	edit dl rm
ChaCha20.pyi	788	0644	edit dl rm
ChaCha20_Poly1305.py	11561	0644	edit dl rm
ChaCha20_Poly1305.pyi	1106	0644	edit dl rm
DES.py	5947	0644	edit dl rm
DES.pyi	961	0644	edit dl rm
DES3.py	6925	0644	edit dl rm
DES3.pyi	1031	0644	edit dl rm
PKCS1_OAEP.py	8827	0644	edit dl rm
PKCS1_OAEP.pyi	1179	0644	edit dl rm
PKCS1_v1_5.py	8141	0644	edit dl rm
PKCS1_v1_5.pyi	686	0644	edit dl rm
Salsa20.py	6349	0644	edit dl rm
Salsa20.pyi	751	0644	edit dl rm
_ARC4.abi3.so	15944	0755	edit dl rm
_chacha20.abi3.so	16064	0755	edit dl rm
_EKSBlowfish.py	5205	0644	edit dl rm
_EKSBlowfish.pyi	266	0644	edit dl rm
_mode_cbc.py	10888	0644	edit dl rm
_mode_cbc.pyi	687	0644	edit dl rm
_mode_ccm.py	24375	0644	edit dl rm
_mode_ccm.pyi	1600	0644	edit dl rm
_mode_cfb.py	10721	0644	edit dl rm
_mode_cfb.pyi	727	0644	edit dl rm
_mode_ctr.py	15812	0644	edit dl rm
_mode_ctr.pyi	800	0644	edit dl rm
_mode_eax.py	14453	0644	edit dl rm
_mode_eax.pyi	1545	0644	edit dl rm
_mode_ecb.py	8309	0644	edit dl rm
_mode_ecb.pyi	592	0644	edit dl rm
_mode_gcm.py	21297	0644	edit dl rm
_mode_gcm.pyi	1541	0644	edit dl rm
_mode_ocb.py	19935	0644	edit dl rm
_mode_ocb.pyi	1231	0644	edit dl rm
_mode_ofb.py	10209	0644	edit dl rm
_mode_ofb.pyi	691	0644	edit dl rm
_mode_openpgp.py	7053	0644	edit dl rm
_mode_openpgp.pyi	556	0644	edit dl rm
_mode_siv.py	13977	0644	edit dl rm
_mode_siv.pyi	1261	0644	edit dl rm
_pkcs1_decode.abi3.so	15960	0755	edit dl rm
_raw_aes.abi3.so	32720	0755	edit dl rm
_raw_aesni.abi3.so	20384	0755	edit dl rm
_raw_arc2.abi3.so	20168	0755	edit dl rm
_raw_blowfish.abi3.so	24248	0755	edit dl rm
_raw_cast.abi3.so	28584	0755	edit dl rm
_raw_cbc.abi3.so	15936	0755	edit dl rm
_raw_cfb.abi3.so	16232	0755	edit dl rm
_raw_ctr.abi3.so	16280	0755	edit dl rm
_raw_des.abi3.so	49248	0755	edit dl rm
_raw_des3.abi3.so	49256	0755	edit dl rm
_raw_ecb.abi3.so	15784	0755	edit dl rm
_raw_eksblowfish.abi3.so	32456	0755	edit dl rm
_raw_ocb.abi3.so	20296	0755	edit dl rm
_raw_ofb.abi3.so	15944	0755	edit dl rm
_Salsa20.abi3.so	16088	0755	edit dl rm
__init__.py	2844	0644	edit dl rm
__init__.pyi	0	0644	edit dl rm

Edit: /opt/imunify360/venv/lib/python3.11/site-packages/Crypto/Cipher/_mode_openpgp.py (7053B)

# ===================================================================
#
# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ===================================================================

"""
OpenPGP mode.
"""

__all__ = ['OpenPgpMode']

from Crypto.Util.py3compat import _copy_bytes
from Crypto.Random import get_random_bytes

class OpenPgpMode(object):
    """OpenPGP mode.

This mode is a variant of CFB, and it is only used in PGP and
    OpenPGP_ applications. If in doubt, use another mode.

An Initialization Vector (*IV*) is required.

Unlike CFB, the *encrypted* IV (not the IV itself) is
    transmitted to the receiver.

The IV is a random data block. For legacy reasons, two of its bytes are
    duplicated to act as a checksum for the correctness of the key, which is now
    known to be insecure and is ignored. The encrypted IV is therefore 2 bytes
    longer than the clean IV.

.. _OpenPGP: http://tools.ietf.org/html/rfc4880

:undocumented: __init__
    """

def __init__(self, factory, key, iv, cipher_params):

#: The block size of the underlying cipher, in bytes.
        self.block_size = factory.block_size

self._done_first_block = False  # True after the first encryption

# Instantiate a temporary cipher to process the IV
        IV_cipher = factory.new(
                        key,
                        factory.MODE_CFB,
                        IV=b'\x00' * self.block_size,
                        segment_size=self.block_size * 8,
                        **cipher_params)

iv = _copy_bytes(None, None, iv)

# The cipher will be used for...
        if len(iv) == self.block_size:
            # ... encryption
            self._encrypted_IV = IV_cipher.encrypt(iv + iv[-2:])
        elif len(iv) == self.block_size + 2:
            # ... decryption
            self._encrypted_IV = iv
            # Last two bytes are for a deprecated "quick check" feature that
            # should not be used. (https://eprint.iacr.org/2005/033)
            iv = IV_cipher.decrypt(iv)[:-2]
        else:
            raise ValueError("Length of IV must be %d or %d bytes"
                             " for MODE_OPENPGP"
                             % (self.block_size, self.block_size + 2))

self.iv = self.IV = iv

# Instantiate the cipher for the real PGP data
        self._cipher = factory.new(
                            key,
                            factory.MODE_CFB,
                            IV=self._encrypted_IV[-self.block_size:],
                            segment_size=self.block_size * 8,
                            **cipher_params)

def encrypt(self, plaintext):
        """Encrypt data with the key and the parameters set at initialization.

A cipher object is stateful: once you have encrypted a message
        you cannot encrypt (or decrypt) another message using the same
        object.

The data to encrypt can be broken up in two or
        more pieces and `encrypt` can be called multiple times.

That is, the statement:

>>> c.encrypt(a) + c.encrypt(b)

is equivalent to:

>>> c.encrypt(a+b)

This function does not add any padding to the plaintext.

:Parameters:
          plaintext : bytes/bytearray/memoryview
            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,
            the encypted IV is prepended to the returned ciphertext.
        """

res = self._cipher.encrypt(plaintext)
        if not self._done_first_block:
            res = self._encrypted_IV + res
            self._done_first_block = True
        return res

def decrypt(self, ciphertext):
        """Decrypt data with the key and the parameters set at initialization.

A cipher object is stateful: once you have decrypted a message
        you cannot decrypt (or encrypt) another message with the same
        object.

The data to decrypt can be broken up in two or
        more pieces and `decrypt` can be called multiple times.

That is, the statement:

>>> c.decrypt(a) + c.decrypt(b)

is equivalent to:

>>> c.decrypt(a+b)

This function does not remove any padding from the plaintext.

:Parameters:
          ciphertext : bytes/bytearray/memoryview
            The piece of data to decrypt.

:Return: the decrypted data (byte string).
        """

return self._cipher.decrypt(ciphertext)

def _create_openpgp_cipher(factory, **kwargs):
    """Create a new block cipher, configured in OpenPGP mode.

:Parameters:
      factory : module
        The module.

:Keywords:
      key : bytes/bytearray/memoryview
        The secret key to use in the symmetric cipher.

IV : bytes/bytearray/memoryview
        The initialization vector to use for encryption or decryption.

For encryption, the IV must be as long as the cipher block size.

For decryption, it must be 2 bytes longer (it is actually the
        *encrypted* IV which was prefixed to the ciphertext).
    """

iv = kwargs.pop("IV", None)
    IV = kwargs.pop("iv", None)

if (None, None) == (iv, IV):
        iv = get_random_bytes(factory.block_size)
    if iv is not None:
        if IV is not None:
            raise TypeError("You must either use 'iv' or 'IV', not both")
    else:
        iv = IV

try:
        key = kwargs.pop("key")
    except KeyError as e:
        raise TypeError("Missing component: " + str(e))

return OpenPgpMode(factory, key, iv, kwargs)

cmd: