eddlmZddlmZmZmZddlmZddlm Z ddl m Z m Z m Z mZmZmZmZe ddZGdd eZd Zy ) ) unhexlify)bordtobytes _copy_bytes)BLAKE2s)get_random_bytes)load_pycryptodome_raw_lib VoidPointer SmartPointercreate_string_bufferget_raw_bufferc_size_t c_uint8_ptrzCryptodome.Hash._poly1305a int poly1305_init(void **state, const uint8_t *r, size_t r_len, const uint8_t *s, size_t s_len); int poly1305_destroy(void *state); int poly1305_update(void *state, const uint8_t *in, size_t len); int poly1305_digest(const void *state, uint8_t *digest, size_t len); c>eZdZdZdZdZdZdZdZdZ dZ d Z y ) Poly1305_MACzAn Poly1305 MAC object. Do not instantiate directly. Use the :func:`new` function. :ivar digest_size: the size in bytes of the resulting MAC tag :vartype digest_size: integer c t|dk7r tdt|dk7r tdd|_t}tj |j t|tt|t|tt|}|rtd|zt|jtj|_ |r|j|yy)Nrz Parameter r is not 16 bytes longz Parameter s is not 16 bytes longz%Error %d while instantiating Poly1305)len ValueError_mac_tagr _raw_poly1305 poly1305_init address_ofrrr getpoly1305_destroy_stateupdate)selfrsdatastateresults :/usr/lib/python3/dist-packages/Cryptodome/Hash/Poly1305.py__init__zPoly1305_MAC.__init__?s q6R<?@ @ q6R<?@ @  ,,U-=-=-?-8^-5c!f-=-8^-5c!f-= / DvMN N"599;#0#A#AC  KK  c |jr tdtj|jj t |tt|}|rtd|z|S)zAuthenticate the next chunk of message. Args: data (byte string/byte array/memoryview): The next chunk of data z8You can only call 'digest' or 'hexdigest' on this objectz$Error %d while hashing Poly1305 data) r TypeErrorrpoly1305_updaterrrrrr)rr!r#s r$rzPoly1305_MAC.updateVsd ==VW W..t{{/@/:4/@/7D /BD CfLM M r&ct)N)NotImplementedError)rs r$copyzPoly1305_MAC.copygs !##r&c "|jr |jStd}tj|jj |t t|}|rtd|zt||_|jS)zReturn the **binary** (non-printable) MAC tag of the message authenticated so far. :return: The MAC tag digest, computed over the data processed so far. Binary form. :rtype: byte string rz'Error %d while creating Poly1305 digest) rr rpoly1305_digestrrrrrr )rbfrr#s r$digestzPoly1305_MAC.digestjsx ==== "2&..t{{/@/2/7C/AC FOP P&s+ }}r&c djt|jDcgc]}dt|zc}Scc}w)zReturn the **printable** MAC tag of the message authenticated so far. :return: The MAC tag, computed over the data processed so far. Hexadecimal encoded. :rtype: string z%02x)jointupler0r)rxs r$ hexdigestzPoly1305_MAC.hexdigestsDww!&t{{}!57a(78 87sActd}tjd||}tjd||j}|j|jk7r t dy)ahVerify that a given **binary** MAC (computed by another party) is valid. Args: mac_tag (byte string/byte string/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. r) digest_bitskeyr!zMAC check failedN)rrnewr0r)rmac_tagsecretmac1mac2s r$verifyzPoly1305_MAC.verifys]""%{{sWE{{sT[[]K ;;=DKKM )/0 0 *r&cJ|jtt|y)a~Verify that a given **printable** MAC (computed by another party) is valid. Args: hex_mac_tag (string): the expected MAC of the message, as a hexadecimal string. Raises: ValueError: if the MAC does not match. It means that the message has been tampered with or that the MAC key is incorrect. N)r@rr)r hex_mac_tags r$ hexverifyzPoly1305_MAC.hexverifys Igk234r&N) __name__ __module__ __qualname____doc__ digest_sizer%rr,r0r6r@rCr&r$rr5s1K."$, 81( 5r&rc z|jdd}t|ds td|jdd}| td|jdd}|jdd}|rtd t |z|j ||\}}}t |||}tdd||_|S) aCreate a new Poly1305 MAC object. Args: key (bytes/bytearray/memoryview): The 32-byte key for the Poly1305 object. cipher (module from ``Cryptodome.Cipher``): The cipher algorithm to use for deriving the Poly1305 key pair *(r, s)*. It can only be ``Cryptodome.Cipher.AES`` or ``Cryptodome.Cipher.ChaCha20``. nonce (bytes/bytearray/memoryview): Optional. The non-repeatable value to use for the MAC of this message. It must be 16 bytes long for ``AES`` and 8 or 12 bytes for ``ChaCha20``. If not passed, a random nonce is created; you will find it in the ``nonce`` attribute of the new object. data (bytes/bytearray/memoryview): Optional. The very first chunk of the message to authenticate. It is equivalent to an early call to ``update()``. Returns: A :class:`Poly1305_MAC` object cipherN_derive_Poly1305_key_pairz*Parameter 'cipher' must be AES or ChaCha20r:zYou must pass a parameter 'key'noncer!zUnknown parameters: ) pophasattrrr(strrLrrrM)kwargsrK cipher_keyrMr!rr new_macs r$r;r;s.ZZ$ 'F 66 7EFFE4(J9:: JJw %E ::fd #D .V<==22:uEKAq%1a&GdE2GM Nr&N)binasciirCryptodome.Util.py3compatrrrCryptodome.HashrCryptodome.RandomrCryptodome.Util._raw_apir r r r r rrrobjectrr;rIr&r$rZsM.@@#.///**E  "w56w5v)r&