+
    '(j                         R t ^ RIt^ RIHt ^ RIHtHtHtHt ^ RI	H
t
HtHtHt ]
! RR4      tR tR tR	 t^t^t^t^t^t^t^	t^tR
tR# )a  
Module's constants for the modes of operation supported with Triple 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bchrbordbstr)load_pycryptodome_raw_libVoidPointerSmartPointerc_size_tzCrypto.Cipher._raw_des3a  
                    int DES3_start_operation(const uint8_t key[],
                                             size_t key_len,
                                             void **pResult);
                    int DES3_encrypt(const void *state,
                                     const uint8_t *in,
                                     uint8_t *out,
                                     size_t data_len);
                    int DES3_decrypt(const void *state,
                                     const uint8_t *in,
                                     uint8_t *out,
                                     size_t data_len);
                    int DES3_stop_operation(void *state);
                    c                    R p\        V 4      \        9  d   \        R4      hRP                  V  Uu. uF  p\	        V! \        V4      4      4      NK  	  up4      pVR,          VR,          8X  g   VRR	 VR	R 8X  d   \        R4      hV# u upi )
aQ  Set the parity bits in a TDES key.

:param key_in: the TDES key whose bits need to be adjusted
:type key_in: byte string

:returns: a copy of ``key_in``, with the parity bits correctly set
:rtype: byte string

:raises ValueError: if the TDES key is not 16 or 24 bytes long
:raises ValueError: if the TDES key degenerates into Single DES
c                 x    ^p\        ^^4       F  pWV,	          ^,          ,          pK  	  V ^,          V,          # )   )range)key_byteparityis   &  G/home/ubuntu/cf-venv/lib/python3.14/site-packages/Crypto/Cipher/DES3.pyparity_byte&adjust_key_parity.<locals>.parity_byteI   s7    q!A1}))F 46))    zNot a valid TDES keyr   :N   N:r      NNz(Triple DES key degenerates to single DESii)lenkey_size
ValueErrorjoinr   r   )key_inr   xkey_outs   &   r   adjust_key_parityr   <   s    * 6{("/00hhVEVk$q'23VEFGr{gdm#ws2'"#,'FCDDN Fs   #Bc                    V P                  R4      p\        \	        T4      4      p\
        P                  p\
        P                  p\        4       pT! T\        \        T4      4      TP                  4       4      pT'       d   \        RT,          4      h\        TP                  4       T4      #   \         d    \        R4      hi ; i)zyThis method instantiates and returns a handle to a low-level base cipher.
It will absorb named parameters in the process.keyzMissing 'key' parameterz,Error %X while instantiating the TDES cipher)popKeyError	TypeErrorr   r   _raw_des3_libDES3_start_operationDES3_stop_operationr   r
   r   
address_ofr   r	   get)dict_parametersr   r!   start_operationstop_operationcipherresults   &      r   _create_base_cipherr/   Z   s    3 $$U+ DL
)C#88O"66N]FS%c#h/#..02F G!" # 	#

n55  31223s   B/ /Cc                T    \        \        P                  \        ,          W.VO5/ VB # )au  Create a new Triple DES cipher.

:param key:
    The secret key to use in the symmetric cipher.
    It must be 16 or 24 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** (*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 Triple DES object, of the applicable mode.
)r   sysmodules__name__)r!   modeargskwargss   &&*,r   newr7   r   s%    x #++h/LTLVLLr   )r      )__doc__r1   Crypto.Cipherr   Crypto.Util.py3compatr   r   r   r   Crypto.Util._raw_apir   r   r	   r
   r%   r   r/   r7   MODE_ECBMODE_CBCMODE_CFBMODE_OFBMODE_CTRMODE_OPENPGPMODE_EAX
block_sizer    r   r   <module>rF      sx   ,
  ( ? ?, , *-$<60<M|  
r   