]j; d Z ddlZddlmZ ddlmZ ddlmZmZm Z m
Z
m Z edd Z d Z
d Zd
Zd Zd Zd
ZdZdZdZdZdZdS )a
Module's constants for the modes of operation supported with Single DES:
: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>`
N)_create_cipher) byte_string)load_pycryptodome_raw_lib VoidPointer SmartPointerc_size_t c_uint8_ptrzCrypto.Cipher._raw_desa
int DES_start_operation(const uint8_t key[],
size_t key_len,
void **pResult);
int DES_encrypt(const void *state,
const uint8_t *in,
uint8_t *out,
size_t data_len);
int DES_decrypt(const void *state,
const uint8_t *in,
uint8_t *out,
size_t data_len);
int DES_stop_operation(void *state);
c | d }n # t $ r t d w xY wt | t k r t dt | z t j }t j }t } |t | t t | | }|rt d|z t | | S )z}This method instantiates and returns a handle to a low-level
base cipher. It will absorb named parameters in the process.keyzMissing 'key' parameterz#Incorrect DES key length (%d bytes)z+Error %X while instantiating the DES cipher)popKeyError TypeErrorlenkey_size
ValueError _raw_des_libDES_start_operationDES_stop_operationr r r
address_ofr get)dict_parametersr start_operationstop_operationcipherresults s/builddir/build/BUILD/imunify360-venv-2.6.3/opt/imunify360/venv/lib64/python3.11/site-packages/Crypto/Cipher/DES.py_create_base_cipherr < s 3 !!%(( 3 3 312223 3xx8>SIJJJ"6O!4N
]]F
_[ - - %c#hh / / # . . 0 02 2F #F!" # # #
n 5 55s 2c P t t j t | |g|R i |S )a Create a new DES cipher.
:param key:
The secret key to use in the symmetric cipher.
It must be 8 byte long. The parity bits will be ignored.
: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** (*byte string*) --
(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** (*byte string*) --
(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 DES object, of the applicable mode.
)r sysmodules__name__)r modeargskwargss r newr% U s. x #+h/d LT L L LV L LL )__doc__r
Crypto.Cipherr Crypto.Util.py3compatr Crypto.Util._raw_apir r r r r r r r% MODE_ECBMODE_CBCMODE_CFBMODE_OFBMODE_CTR MODE_OPENPGPMODE_EAX
block_sizer r& r <module>r< s ,
( ( ( ( ( ( - - - - - -9 9 9 9 9 9 9 9 9 9 9 9 9 9 )((
$6 6 62<M <M <M|
r&