V.jy dZddlmZmZmZddedededefdZdgZ e d k(rQe d dd l Z e d D]1Ze j\ZZerned zdk(s$es'e dez3e dy y )zFunctions for PKCS#1 version 2 encryption and signing This module implements certain functionality from PKCS#1 version 2. Main documentation is RFC 2437: https://tools.ietf.org/html/rfc2437 )commonpkcs1 transformseedlengthhasherreturnc  tjj}|d|zkDrtdj |dj fd ttj||d zD}|d|S#t$rU}t dj dj ttjj|d}~wwxYw) a MGF1 is a Mask Generation Function based on a hash function. A mask generation function takes an octet string of variable length and a desired output length as input, and outputs an octet string of the desired length. The plaintext-awareness of RSAES-OAEP relies on the random nature of the output of the mask generation function, which in turn relies on the random nature of the underlying hash. :param bytes seed: seed from which mask is generated, an octet string :param int length: intended length in octets of the mask, at most 2^32(hLen) :param str hasher: hash function (hLen denotes the length in octets of the hash function output) :return: mask, an octet string of length `length` :rtype: bytes :raise OverflowError: when `length` is too large for the specified `hasher` :raise ValueError: when specified `hasher` is invalid z=Invalid `hasher` specified. Please select one of: {hash_list}z, ) hash_listNlzmDesired length should be at most 2**32 times the hasher's output length ({hash_length} for {hasher} function)) hash_lengthrc3|K|]3}tjtj|dz5yw)) fill_size) method_nameN)r compute_hashr int2bytes).0counterrrs NC:\xampp\htdocs\tradingbinance\backend\.venv\Lib\site-packages\rsa/pkcs1_v2.py zmgf1..HsG GG  9&&w!< <  Gs9<) r HASH_METHODS digest_sizeKeyError ValueErrorformatjoinsortedkeys OverflowErrorrangerceil_div)rrrr exoutputs` ` rmgf1r&s,((02>> ;&' ;;A6'r7s 5u5c535U5r   z 34t+GOO-5   3;!  *u$ %  /r