o e0@sZddlmZddlmZmZmZmZmZmZm Z ddl m Z Gddde Z d ddZdS) )bord)load_pycryptodome_raw_lib VoidPointer SmartPointercreate_string_bufferget_raw_bufferc_size_t c_uint8_ptr)_raw_keccak_libc@s8eZdZdZdZd ddZddZdd Zd d d ZdS) SHAKE128_XOFzA SHAKE128 hash object. Do not instantiate directly. Use the :func:`new` function. :ivar oid: ASN.1 Object ID :vartype oid: string z2.16.840.1.101.3.4.2.11NcCsZt}t|tdd}|rtd|t|tj|_ d|_ |r+| |dSdS)N z%Error %d while instantiating SHAKE128F) rr keccak_init address_ofr ValueErrorrgetkeccak_destroy_state _is_squeezingupdate)selfdatastateresultr:/usr/lib/python3/dist-packages/Cryptodome/Hash/SHAKE128.py__init__5s  zSHAKE128_XOF.__init__cCsB|jrtdt|jt|tt|}|rt d||S)zContinue 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 keccak_absorbrrr rlenr)rrrrrrrCs  zSHAKE128_XOF.updatecCs>d|_t|}t|j|t|}|rtd|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) rrr keccak_squeezerrrrr)rlengthbfrrrrrreadUs zSHAKE128_XOF.readcCst||dS)Nr)type)rrrrrnewoszSHAKE128_XOF.newN) __name__ __module__ __qualname____doc__oidrrr#r&rrrrr )s r NcCs t|dS)aReturn 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$)r r$rrrr&ss r&r')Cryptodome.Util.py3compatrCryptodome.Util._raw_apirrrrrrr Cryptodome.Hash.keccakr objectr r&rrrrs $ J