File Manager

X7ROOT File Manager

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

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

📁 ..
📄 AES.py(8.71 KB)
📄 AES.pyi(3.63 KB)
📄 ARC2.py(6.85 KB)
📄 ARC2.pyi(980 B)
📄 ARC4.py(5 KB)
📄 ARC4.pyi(413 B)
📄 Blowfish.py(5.82 KB)
📄 Blowfish.pyi(1016 B)
📄 CAST.py(5.93 KB)
📄 CAST.pyi(981 B)
📄 ChaCha20.py(10.48 KB)
📄 ChaCha20.pyi(788 B)
📄 ChaCha20_Poly1305.py(11.29 KB)
📄 ChaCha20_Poly1305.pyi(1.08 KB)
📄 DES.py(5.81 KB)
📄 DES.pyi(961 B)
📄 DES3.py(6.76 KB)
📄 DES3.pyi(1.01 KB)
📄 PKCS1_OAEP.py(8.62 KB)
📄 PKCS1_OAEP.pyi(1.15 KB)
📄 PKCS1_v1_5.py(7.95 KB)
📄 PKCS1_v1_5.pyi(686 B)
📄 Salsa20.py(6.2 KB)
📄 Salsa20.pyi(751 B)
📄 _ARC4.abi3.so(15.57 KB)
📄 _EKSBlowfish.py(5.08 KB)
📄 _EKSBlowfish.pyi(266 B)
📄 _Salsa20.abi3.so(15.71 KB)
📄 __init__.py(2.78 KB)
📄 __init__.pyi(0 B)
📁 __pycache__
📄 _chacha20.abi3.so(15.69 KB)
📄 _mode_cbc.py(10.63 KB)
📄 _mode_cbc.pyi(687 B)
📄 _mode_ccm.py(23.8 KB)
📄 _mode_ccm.pyi(1.56 KB)
📄 _mode_cfb.py(10.47 KB)
📄 _mode_cfb.pyi(727 B)
📄 _mode_ctr.py(15.44 KB)
📄 _mode_ctr.pyi(800 B)
📄 _mode_eax.py(14.11 KB)
📄 _mode_eax.pyi(1.51 KB)
📄 _mode_ecb.py(8.11 KB)
📄 _mode_ecb.pyi(592 B)
📄 _mode_gcm.py(20.8 KB)
📄 _mode_gcm.pyi(1.5 KB)
📄 _mode_ocb.py(19.47 KB)
📄 _mode_ocb.pyi(1.2 KB)
📄 _mode_ofb.py(9.97 KB)
📄 _mode_ofb.pyi(691 B)
📄 _mode_openpgp.py(6.89 KB)
📄 _mode_openpgp.pyi(556 B)
📄 _mode_siv.py(13.65 KB)
📄 _mode_siv.pyi(1.23 KB)
📄 _pkcs1_decode.abi3.so(15.59 KB)
📄 _raw_aes.abi3.so(31.95 KB)
📄 _raw_aesni.abi3.so(19.91 KB)
📄 _raw_arc2.abi3.so(19.7 KB)
📄 _raw_blowfish.abi3.so(23.68 KB)
📄 _raw_cast.abi3.so(27.91 KB)
📄 _raw_cbc.abi3.so(15.56 KB)
📄 _raw_cfb.abi3.so(15.85 KB)
📄 _raw_ctr.abi3.so(15.9 KB)
📄 _raw_des.abi3.so(48.09 KB)
📄 _raw_des3.abi3.so(48.1 KB)
📄 _raw_ecb.abi3.so(15.41 KB)
📄 _raw_eksblowfish.abi3.so(31.7 KB)
📄 _raw_ocb.abi3.so(19.82 KB)
📄 _raw_ofb.abi3.so(15.57 KB)

Editing: Blowfish.py

# -*- coding: utf-8 -*-
#
#  Cipher/Blowfish.py : Blowfish
#
# ===================================================================
# 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's constants for the modes of operation supported with Blowfish:

:var MODE_ECB: :ref:`Electronic Code Book (ECB) <ecb_mode>`
:var MODE_CBC: :ref:`Cipher-Block Chaining (CBC) <cbc_mode>`
:var MODE_CFB: :ref:`Cipher FeedBack (CFB) <cfb_mode>`
:var MODE_OFB: :ref:`Output FeedBack (OFB) <ofb_mode>`
:var MODE_CTR: :ref:`CounTer Mode (CTR) <ctr_mode>`
:var MODE_OPENPGP:  :ref:`OpenPGP Mode <openpgp_mode>`
:var MODE_EAX: :ref:`EAX Mode <eax_mode>`
"""

import sys

from Crypto.Cipher import _create_cipher
from Crypto.Util._raw_api import (load_pycryptodome_raw_lib,
                                  VoidPointer, SmartPointer, c_size_t,
                                  c_uint8_ptr)

_raw_blowfish_lib = load_pycryptodome_raw_lib(
        "Crypto.Cipher._raw_blowfish",
        """
        int Blowfish_start_operation(const uint8_t key[],
                                     size_t key_len,
                                     void **pResult);
        int Blowfish_encrypt(const void *state,
                             const uint8_t *in,
                             uint8_t *out,
                             size_t data_len);
        int Blowfish_decrypt(const void *state,
                             const uint8_t *in,
                             uint8_t *out,
                             size_t data_len);
        int Blowfish_stop_operation(void *state);
        """
        )

def _create_base_cipher(dict_parameters):
    """This method instantiates and returns a smart pointer to
    a low-level base cipher. It will absorb named parameters in
    the process."""

try:
        key = dict_parameters.pop("key")
    except KeyError:
        raise TypeError("Missing 'key' parameter")

if len(key) not in key_size:
        raise ValueError("Incorrect Blowfish key length (%d bytes)" % len(key))

start_operation = _raw_blowfish_lib.Blowfish_start_operation
    stop_operation = _raw_blowfish_lib.Blowfish_stop_operation

void_p = VoidPointer()
    result = start_operation(c_uint8_ptr(key),
                             c_size_t(len(key)),
                             void_p.address_of())
    if result:
        raise ValueError("Error %X while instantiating the Blowfish cipher"
                         % result)
    return SmartPointer(void_p.get(), stop_operation)

def new(key, mode, *args, **kwargs):
    """Create a new Blowfish cipher

:param key:
        The secret key to use in the symmetric cipher.
        Its length can vary from 5 to 56 bytes.
    :type key: bytes, bytearray, memoryview

:param mode:
        The chaining mode to use for encryption or decryption.
    :type mode: One of the supported ``MODE_*`` constants

:Keyword Arguments:
        *   **iv** (*bytes*, *bytearray*, *memoryview*) --
            (Only applicable for ``MODE_CBC``, ``MODE_CFB``, ``MODE_OFB``,
            and ``MODE_OPENPGP`` modes).

The initialization vector to use for encryption or decryption.

For ``MODE_CBC``, ``MODE_CFB``, and ``MODE_OFB`` it must be 8 bytes long.

For ``MODE_OPENPGP`` mode only,
            it must be 8 bytes long for encryption
            and 10 bytes for decryption (in the latter case, it is
            actually the *encrypted* IV which was prefixed to the ciphertext).

If not provided, a random byte string is generated (you must then
            read its value with the :attr:`iv` attribute).

*   **nonce** (*bytes*, *bytearray*, *memoryview*) --
            (Only applicable for ``MODE_EAX`` and ``MODE_CTR``).

A value that must never be reused for any other encryption done
            with this key.

For ``MODE_EAX`` there are no
            restrictions on its length (recommended: **16** bytes).

For ``MODE_CTR``, its length must be in the range **[0..7]**.

If not provided for ``MODE_EAX``, a random byte string is generated (you
            can read it back via the ``nonce`` attribute).

*   **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 not specified, it will be assumed to be 8.

*   **mac_len** : (*integer*) --
            (Only ``MODE_EAX``)
            Length of the authentication tag, in bytes.
            It must be no longer than 8 (default).

*   **initial_value** : (*integer*) --
            (Only ``MODE_CTR``). The initial value for the counter within
            the counter block. By default it is **0**.

:Return: a Blowfish object, of the applicable mode.
    """

return _create_cipher(sys.modules[__name__], key, mode, *args, **kwargs)

MODE_ECB = 1
MODE_CBC = 2
MODE_CFB = 3
MODE_OFB = 5
MODE_CTR = 6
MODE_OPENPGP = 7
MODE_EAX = 9

# Size of a data block (in bytes)
block_size = 8
# Size of a key (in bytes)
key_size = range(4, 56 + 1)

X7ROOT File Manager

Editing: Blowfish.py

Upload File

Create Folder