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📁 ..
📄 AES.py(9.34 KB)
📄 AES.pyi(1.35 KB)
📄 ARC2.py(6.86 KB)
📄 ARC2.pyi(982 B)
📄 ARC4.py(5.05 KB)
📄 ARC4.pyi(431 B)
📄 Blowfish.py(5.84 KB)
📄 Blowfish.pyi(1018 B)
📄 CAST.py(5.94 KB)
📄 CAST.pyi(983 B)
📄 ChaCha20.py(10.53 KB)
📄 ChaCha20.pyi(762 B)
📄 ChaCha20_Poly1305.py(11.29 KB)
📄 ChaCha20_Poly1305.pyi(1.04 KB)
📄 DES.py(5.82 KB)
📄 DES.pyi(963 B)
📄 DES3.py(6.78 KB)
📄 DES3.pyi(1.01 KB)
📄 PKCS1_OAEP.py(8.67 KB)
📄 PKCS1_OAEP.pyi(1.16 KB)
📄 PKCS1_v1_5.py(7.79 KB)
📄 PKCS1_v1_5.pyi(589 B)
📄 Salsa20.py(6.22 KB)
📄 Salsa20.pyi(744 B)
📄 _ARC4.abi3.so(5.18 KB)
📄 _EKSBlowfish.py(5.09 KB)
📄 _EKSBlowfish.pyi(270 B)
📄 _Salsa20.abi3.so(6.25 KB)
📄 __init__.py(2.82 KB)
📄 __init__.pyi(0 B)
📁 __pycache__
📄 _chacha20.abi3.so(6.79 KB)
📄 _mode_cbc.py(10.71 KB)
📄 _mode_cbc.pyi(691 B)
📄 _mode_ccm.py(23.9 KB)
📄 _mode_ccm.pyi(1.56 KB)
📄 _mode_cfb.py(10.57 KB)
📄 _mode_cfb.pyi(731 B)
📄 _mode_ctr.py(15.5 KB)
📄 _mode_ctr.pyi(804 B)
📄 _mode_eax.py(14.2 KB)
📄 _mode_eax.pyi(1.51 KB)
📄 _mode_ecb.py(8.13 KB)
📄 _mode_ecb.pyi(596 B)
📄 _mode_gcm.py(20.9 KB)
📄 _mode_gcm.pyi(1.5 KB)
📄 _mode_ocb.py(19.37 KB)
📄 _mode_ocb.pyi(1.2 KB)
📄 _mode_ofb.py(10.06 KB)
📄 _mode_ofb.pyi(695 B)
📄 _mode_openpgp.py(6.9 KB)
📄 _mode_openpgp.pyi(556 B)
📄 _mode_siv.py(13.76 KB)
📄 _mode_siv.pyi(1.23 KB)
📄 _raw_aes.abi3.so(23.2 KB)
📄 _raw_aesni.abi3.so(9.57 KB)
📄 _raw_arc2.abi3.so(7.23 KB)
📄 _raw_blowfish.abi3.so(10.41 KB)
📄 _raw_cast.abi3.so(16.12 KB)
📄 _raw_cbc.abi3.so(6.21 KB)
📄 _raw_cfb.abi3.so(6.13 KB)
📄 _raw_ctr.abi3.so(7.91 KB)
📄 _raw_des.abi3.so(41.73 KB)
📄 _raw_des3.abi3.so(42 KB)
📄 _raw_ecb.abi3.so(4.38 KB)
📄 _raw_eksblowfish.abi3.so(11.59 KB)
📄 _raw_ocb.abi3.so(8.57 KB)
📄 _raw_ofb.abi3.so(5.74 KB)

Editing: _EKSBlowfish.py

# ===================================================================
#
# Copyright (c) 2019, 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.
# ===================================================================

import sys

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

_raw_blowfish_lib = load_pycryptodome_raw_lib(
        "Cryptodome.Cipher._raw_eksblowfish",
        """
        int EKSBlowfish_start_operation(const uint8_t key[],
                                        size_t key_len,
                                        const uint8_t salt[16],
                                        size_t salt_len,
                                        unsigned cost,
                                        unsigned invert,
                                        void **pResult);
        int EKSBlowfish_encrypt(const void *state,
                                const uint8_t *in,
                                uint8_t *out,
                                size_t data_len);
        int EKSBlowfish_decrypt(const void *state,
                                const uint8_t *in,
                                uint8_t *out,
                                size_t data_len);
        int EKSBlowfish_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")
        salt = dict_parameters.pop("salt")
        cost = dict_parameters.pop("cost")
    except KeyError as e:
        raise TypeError("Missing EKSBlowfish parameter: " + str(e))
    invert = dict_parameters.pop("invert", True)

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

start_operation = _raw_blowfish_lib.EKSBlowfish_start_operation
    stop_operation = _raw_blowfish_lib.EKSBlowfish_stop_operation

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

def new(key, mode, salt, cost, invert):
    """Create a new EKSBlowfish cipher
    
    Args:

key (bytes, bytearray, memoryview):
        The secret key to use in the symmetric cipher.
        Its length can vary from 0 to 72 bytes.

mode (one of the supported ``MODE_*`` constants):
        The chaining mode to use for encryption or decryption.

salt (bytes, bytearray, memoryview):
        The salt that bcrypt uses to thwart rainbow table attacks

cost (integer):
        The complexity factor in bcrypt

invert (bool):
        If ``False``, in the inner loop use ``ExpandKey`` first over the salt
        and then over the key, as defined in
        the `original bcrypt specification <https://www.usenix.org/legacy/events/usenix99/provos/provos_html/node4.html>`_.
        If ``True``, reverse the order, as in the first implementation of
        `bcrypt` in OpenBSD.

:Return: an EKSBlowfish object
    """

kwargs = { 'salt':salt, 'cost':cost, 'invert':invert }
    return _create_cipher(sys.modules[__name__], key, mode, **kwargs)

MODE_ECB = 1

# Size of a data block (in bytes)
block_size = 8
# Size of a key (in bytes)
key_size = range(0, 72 + 1)

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Editing: _EKSBlowfish.py

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