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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: init.py

#
# A block cipher is instantiated as a combination of:
# 1. A base cipher (such as AES)
# 2. A mode of operation (such as CBC)
#
# Both items are implemented as C modules.
#
# The API of #1 is (replace "AES" with the name of the actual cipher):
# - AES_start_operaion(key) --> base_cipher_state
# - AES_encrypt(base_cipher_state, in, out, length)
# - AES_decrypt(base_cipher_state, in, out, length)
# - AES_stop_operation(base_cipher_state)
#
# Where base_cipher_state is AES_State, a struct with BlockBase (set of
# pointers to encrypt/decrypt/stop) followed by cipher-specific data.
#
# The API of #2 is (replace "CBC" with the name of the actual mode):
# - CBC_start_operation(base_cipher_state) --> mode_state
# - CBC_encrypt(mode_state, in, out, length)
# - CBC_decrypt(mode_state, in, out, length)
# - CBC_stop_operation(mode_state)
#
# where mode_state is a a pointer to base_cipher_state plus mode-specific data.

import os

from Crypto.Cipher._mode_ecb import _create_ecb_cipher
from Crypto.Cipher._mode_cbc import _create_cbc_cipher
from Crypto.Cipher._mode_cfb import _create_cfb_cipher
from Crypto.Cipher._mode_ofb import _create_ofb_cipher
from Crypto.Cipher._mode_ctr import _create_ctr_cipher
from Crypto.Cipher._mode_openpgp import _create_openpgp_cipher
from Crypto.Cipher._mode_ccm import _create_ccm_cipher
from Crypto.Cipher._mode_eax import _create_eax_cipher
from Crypto.Cipher._mode_siv import _create_siv_cipher
from Crypto.Cipher._mode_gcm import _create_gcm_cipher
from Crypto.Cipher._mode_ocb import _create_ocb_cipher

_modes = { 1:_create_ecb_cipher,
           2:_create_cbc_cipher,
           3:_create_cfb_cipher,
           5:_create_ofb_cipher,
           6:_create_ctr_cipher,
           7:_create_openpgp_cipher,
           9:_create_eax_cipher
           }

_extra_modes = { 8:_create_ccm_cipher,
                10:_create_siv_cipher,
                11:_create_gcm_cipher,
                12:_create_ocb_cipher
                }

def _create_cipher(factory, key, mode, *args, **kwargs):

kwargs["key"] = key

modes = dict(_modes)
    if kwargs.pop("add_aes_modes", False):
        modes.update(_extra_modes)
    if not mode in modes:
        raise ValueError("Mode not supported")

if args:
        if mode in (8, 9, 10, 11, 12):
            if len(args) > 1:
                raise TypeError("Too many arguments for this mode")
            kwargs["nonce"] = args[0]
        elif mode in (2, 3, 5, 7):
            if len(args) > 1:
                raise TypeError("Too many arguments for this mode")
            kwargs["IV"] = args[0]
        elif mode == 6:
            if len(args) > 0:
                raise TypeError("Too many arguments for this mode")
        elif mode == 1:
            raise TypeError("IV is not meaningful for the ECB mode")

return modes[mode](factory, **kwargs)

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