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o ;j� � @ s^ d dl mZ d dlmZmZmZmZmZmZm Z m Z d dl m Z G dd� de �Zd dd�ZdS ) � )�bord)�load_pycryptodome_raw_lib� VoidPointer� SmartPointer�create_string_buffer�get_raw_buffer�c_size_t� c_uint8_ptr�c_ubyte)�_raw_keccak_libc @ s@ e Zd ZdZdZddd�Zdd� Zdd � Zd d � Zdd d �Z dS )� SHAKE128_XOFz�A SHAKE128 hash object. Do not instantiate directly. Use the :func:`new` function. :ivar oid: ASN.1 Object ID :vartype oid: string z2.16.840.1.101.3.4.2.11Nc C sd t � }t�|�� td�td��}|rtd| ��t|�� tj �| _ d| _ d| _ |r0| � |� d S d S )N� � z%Error %d while instantiating SHAKE128F� )r r Z keccak_initZ address_ofr r � ValueErrorr �getZkeccak_destroy�_state� _is_squeezing�_padding�update)�self�data�state�result� r �L/opt/saltstack/salt/lib/python3.10/site-packages/Cryptodome/Hash/SHAKE128.py�__init__5 s" ����zSHAKE128_XOF.__init__c C sB | j rtd��t�| j�� t|�tt|���}|r t d| ��| S )z�Continue hashing of a message by consuming the next chunk of data. Args: data (byte string/byte array/memoryview): The next chunk of the message being hashed. z/You cannot call 'update' after the first 'read'z&Error %d while updating SHAKE128 state) r � TypeErrorr Z keccak_absorbr r r r �lenr )r r r r r r r D s ��zSHAKE128_XOF.updatec C sF d| _ t|�}t�| j�� |t|�t| j��}|r t d| ��t |�S )ah Compute the next piece of XOF output. .. note:: You cannot use :meth:`update` anymore after the first call to :meth:`read`. Args: length (integer): the amount of bytes this method must return :return: the next piece of XOF output (of the given length) :rtype: byte string Tz'Error %d while extracting from SHAKE128) r r r Zkeccak_squeezer r r r r r r )r �lengthZbfrr r r r �readV s ��zSHAKE128_XOF.readc C s4 | � � }t�| j�� |j�� �}|rtd| ��|S )z�Return a copy ("clone") of the hash object. The copy will have the same internal state as the original hash object. :return: A hash object of the same type z Error %d while copying SHAKE128)�newr Z keccak_copyr r r )r �cloner r r r �copyq s � zSHAKE128_XOF.copyc C s t | �|d�S )N�r )�type)r r r r r r! � s zSHAKE128_XOF.new�N) �__name__� __module__� __qualname__�__doc__�oidr r r r# r! r r r r r ) s r Nc C s t | d�S )a Return a fresh instance of a SHAKE128 object. Args: data (bytes/bytearray/memoryview): The very first chunk of the message to hash. It is equivalent to an early call to :meth:`update`. Optional. :Return: A :class:`SHAKE128_XOF` object r$ )r r$ r r r r! � s r! r& )ZCryptodome.Util.py3compatr ZCryptodome.Util._raw_apir r r r r r r r ZCryptodome.Hash.keccakr �objectr r! r r r r �<module> s ( \
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