o 5Î h=ã@slddlmZddlmZmZmZddlmZddlm Z m Z ddl m Z m Z m Z Gdd„deƒZd d „Zd S) é)Ú unhexlify)ÚbordÚtobytesÚis_bytes)Úget_random_bytesé)Ú cSHAKE128ÚSHA3_256)Ú_bytepadÚ _encode_strÚ _right_encodec@sHeZdZdZdd„Zdd„Zdd„Zdd „Zd d „Zd d „Z dd„Z dS)Ú KMAC_Hashz[A KMAC hash object. Do not instantiate directly. Use the :func:`new` function. c CsPd||_||_d|_ttt|ƒƒ|ƒ}| ||d¡|_|r&|j |¡dSdS)Nz2.16.840.1.101.3.4.2.sKMAC) ÚoidÚ digest_sizeÚ_macr r rÚ_newÚ_cshakeÚupdate) ÚselfÚdataÚkeyÚmac_lenÚcustomÚ oid_variantÚcshakeÚrateÚ partial_newX©rúg/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/Crypto/Hash/KMAC128.pyÚ__init__.s ÿzKMAC_Hash.__init__cCs|jrtdƒ‚|j |¡|S)z©Authenticate the next chunk of message. Args: data (bytes/bytearray/memoryview): The next chunk of the message to authenticate. z8You can only call 'digest' or 'hexdigest' on this object)rÚ TypeErrorrr)rrrrrr=s zKMAC_Hash.updatecCs2|js|j t|jdƒ¡|j |j¡|_|jS)zŽReturn the **binary** (non-printable) MAC tag of the message. :return: The MAC tag. Binary form. :rtype: byte string é)rrrr rÚread©rrrrÚdigestKszKMAC_Hash.digestcCsd dd„t| ¡ƒDƒ¡S)z„Return the **printable** MAC tag of the message. :return: The MAC tag. Hexadecimal encoded. :rtype: string ÚcSsg|]}dt|ƒ‘qS)z%02x)r)Ú.0ÚxrrrÚ _sz'KMAC_Hash.hexdigest..)ÚjoinÚtupler$r#rrrÚ hexdigestXszKMAC_Hash.hexdigestcCsDtdƒ}t ||¡}t || ¡¡}| ¡| ¡kr tdƒ‚dS)a`Verify that a given **binary** MAC (computed by another party) is valid. Args: mac_tag (bytes/bytearray/memoryview): the expected MAC of the message. Raises: ValueError: if the MAC does not match. It means that the message has been tampered with or that the MAC key is incorrect. ézMAC check failedN)rr Únewr$Ú ValueError)rÚmac_tagÚsecretÚmac1Úmac2rrrÚverifyas  ÿzKMAC_Hash.verifycCs| tt|ƒƒ¡dS)anVerify that a given **printable** MAC (computed by another party) is valid. Args: hex_mac_tag (string): the expected MAC of the message, as a hexadecimal string. Raises: ValueError: if the MAC does not match. It means that the message has been tampered with or that the MAC key is incorrect. N)r3rr)rÚ hex_mac_tagrrrÚ hexverifyus zKMAC_Hash.hexverifycKs d|vr |j|d<tdi|¤ŽS)zNReturn a new instance of a KMAC hash object. See :func:`new`. rNr)rr-)rÚkwargsrrrr-ƒs z KMAC_Hash.newN) Ú__name__Ú __module__Ú __qualname__Ú__doc__rrr$r+r3r5r-rrrrr (s   r cKsŒ| dd¡}t|ƒstdƒ‚t|ƒdkrtdƒ‚| dd¡}| dd¡}|d kr,td ƒ‚| d d ¡}|rs   f