(gW*ddlmZddlmZddlmZmZmZmZm Z m Z m Z m Z m Z eddZdZGddeZd Zd Zd Zd Zy ))get_random_bytes) _copy_bytes) load_pycryptodome_raw_libcreate_string_bufferget_raw_buffer VoidPointer SmartPointerc_size_t c_uint8_ptrc_ulongis_writeable_bufferzCrypto.Cipher._chacha20a int chacha20_init(void **pState, const uint8_t *key, size_t keySize, const uint8_t *nonce, size_t nonceSize); int chacha20_destroy(void *state); int chacha20_encrypt(void *state, const uint8_t in[], uint8_t out[], size_t len); int chacha20_seek(void *state, unsigned long block_high, unsigned long block_low, unsigned offset); int hchacha20( const uint8_t key[32], const uint8_t nonce16[16], uint8_t subkey[32]); ct|dk(sJt|dk(sJtd}tjt |t |t |}|rt d|z|S)N z,Error %d when deriving subkey with HChaCha20)len bytearray_raw_chacha20_lib hchacha20r ValueError)keynoncesubkeyresults T/var/www/skyplay_api_hub/venv/lib/python3.12/site-packages/Crypto/Cipher/ChaCha20.py _HChaCha20rCsp s8r>> u:   r]F  ( (C E"F#%FG&PQQ Mc6eZdZdZdZdZd dZdZd dZdZ y) ChaCha20CipherzChaCha20 (or XChaCha20) cipher object. Do not create it directly. Use :py:func:`new` instead. :var nonce: The nonce with length 8, 12 or 24 bytes :vartype nonce: bytes c 6tdd||_t|dk(rt||dd}d|ddz}d|_nd|_|j}d|_t |_tj|jjt|tt||tt|}|rtd||jfzt|jjtj |_y) z\Initialize a ChaCha20/XChaCha20 cipher object See also `new()` at the module level.Nr XChaCha20ChaCha20)encryptdecryptz"Error %d instantiating a %s cipher)rrrr_name_nextr_stater chacha20_init address_ofr r rr getchacha20_destroy)selfrrrs r__init__zChaCha20Cipher.__init__]s !tU3  u: S%*-C%*,E$DJ#DJJJE+ !m "00 ..0#C( S* U, . AVEIZZEQQR R"4;;??#4#4#E#EG rNcfd|jvr tdd|_|j||S)aEncrypt a piece of data. Args: plaintext(bytes/bytearray/memoryview): The data to encrypt, of any size. Keyword Args: output(bytes/bytearray/memoryview): The location where the ciphertext is written to. If ``None``, the ciphertext is returned. Returns: If ``output`` is ``None``, the ciphertext is returned as ``bytes``. Otherwise, ``None``. r%z-Cipher object can only be used for decryption)r%)r( TypeError_encrypt)r. plaintextoutputs rr%zChaCha20Cipher.encrypt}s4 DJJ &KL L! }}Y//rc |tt|}nF|}t|s tdt|t|k7rt dt|zt j |jjt|t|tt|}|rt d||jfz| t|Sy)zEncrypt without FSM checksNz4output must be a bytearray or a writeable memoryviewz9output must have the same length as the input (%d bytes)z!Error %d while encrypting with %s) rrr r1rrchacha20_encryptr)r,r r r'r)r.r3r4 ciphertextrs rr2zChaCha20Cipher._encrypts >-c)n=JJ&v. VWW9~V, "025i."ABB#33)-):)4Y)?)4Z)@)1#i.)A C @FDJJCWWX X >!*- -rcd|jvr tdd|_ |j||S#t$r)}tt |j ddd}~wwxYw)aDecrypt a piece of data. Args: ciphertext(bytes/bytearray/memoryview): The data to decrypt, of any size. Keyword Args: output(bytes/bytearray/memoryview): The location where the plaintext is written to. If ``None``, the plaintext is returned. Returns: If ``output`` is ``None``, the plaintext is returned as ``bytes``. Otherwise, ``None``. r&z-Cipher object can only be used for encryption)r&encdecN)r(r1r2rstrreplace)r.r7r4es rr&zChaCha20Cipher.decryptsc DJJ &KL L!  ;==V4 4 ;SV^^E59: : ;s4 A&$A!!A&ct|d\}}|dz}|dz }tj|jj t |t ||}|rt d||jfzy)aSeek to a certain position in the key stream. If you want to seek to a certain block, use ``seek(block_number * 64)``. Args: position (integer): The absolute position within the key stream, in bytes. @lrzError %d while seeking with %sN)divmodr chacha20_seekr)r,r rr')r.position block_numberoffset block_low block_highrs rseekzChaCha20Cipher.seeks~ &h3 f :- !R' "00151B181D181C17 3 =@TTU U r)N) __name__ __module__ __qualname____doc__ block_sizer/r%r2r&rGrrrrSs*JG@0$8;,Vrrct|dk7r td|tdx}}n0t|dk(rd|z}nt|dk(r|}n tdt||j d }|dd |d d|fS) zrDerive a tuple (r, s, nonce) for a Poly1305 MAC. If nonce is ``None``, a new 12-byte nonce is generated. rz-Poly1305 with ChaCha20 requires a 32-byte keyN r"z6Poly1305 with ChaCha20 requires an 8- or 12-byte nonce)rrs r)rrrnewr%)rr padded_noncerss r_derive_Poly1305_key_pairrTs  3x2~HII }/33 u Uq+U2 Ur  QRR L ) 1 1, ?B cr7BrsGU ""rc N |jd}|jdd}| td}t |dk7r t dt |dvr t d |rtd t |zt||S#t$r}td|zd}~wwxYw) a}Create a new ChaCha20 or XChaCha20 cipher Keyword Args: key (bytes/bytearray/memoryview): The secret key to use. It must be 32 bytes long. nonce (bytes/bytearray/memoryview): A mandatory value that must never be reused for any other encryption done with this key. For ChaCha20, it must be 8 or 12 bytes long. For XChaCha20, it must be 24 bytes long. If not provided, 8 bytes will be randomly generated (you can find them back in the ``nonce`` attribute). :Return: a :class:`Crypto.Cipher.ChaCha20.ChaCha20Cipher` object rzMissing parameter %sNrrPrz,ChaCha20/XChaCha20 key must be 32 bytes long)rPrOr!z:Nonce must be 8/12 bytes(ChaCha20) or 24 bytes (XChaCha20)zUnknown parameters: )popKeyErrorr1rrrr;r)kwargsrr=rs rrQrQs(4jj JJw %E } # 3x2~GHH 5z$UVV .V<== #u %%! 4.2334sB B$BB$rrN) Crypto.RandomrCrypto.Util.py3compatrCrypto.Util._raw_apirrrrr r r r r rrobjectrrTrQrLkey_sizerMrrr^s`>+-777..G4  DVVDVN#:&&R  r