V.j" XdZddlZddlmZddlmZmZmZddlm Z gdZ dZ d Z d d Z y) a RFC 6979: Deterministic Usage of the Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA) http://tools.ietf.org/html/rfc6979 Many thanks to Coda Hale for his implementation in Go language: https://github.com/codahale/rfc6979 N)hexlify)number_to_stringnumber_to_string_crop bit_length) hmac_compat)rbits2int bits2octets generate_kcftt|d}t|dz}||kDr|||z z S|S)N)intrlen)dataqlenxls OC:\xampp\htdocs\tradingbinance\backend\.venv\Lib\site-packages\ecdsa/rfc6979.pyr r s9 GDM2A D A A4xQX Hc\t|t|}||z }|dkr|}t||S)Nr)r rr)rorderz1z2s rr r s5 $ 5) *B eB Av  U ++rc"t|}|j}|dzdz}tt||tt ||t|f} d|z} d|z} t j | |} | j| dz| D]} | j| | j} t j | | |j} t j | |} | j| dz| D]} | j| | j} t j | | |j} d} t| |kr9t j | | |j} | | z } t| |kr9t| |}d|cxkr|krnn |dkr|S|dz}t j | | dz|j} t j | | |j} ) aD Generate the ``k`` value - the nonce for DSA. :param int order: order of the DSA generator used in the signature :param int secexp: secure exponent (private key) in numeric form :param hash_func: reference to the same hash function used for generating hash, like :py:class:`hashlib.sha1` :param bytes data: hash in binary form of the signing data :param int retry_gen: how many good 'k' values to skip before returning :param bytes extra_entropy: additional added data in binary form as per section-3.6 of rfc6979 :rtype: int r) digestmodrrr) r digest_sizerrr hmacnewupdatedigestrr )rsecexp hash_funcr retry_gen extra_entropyrholenrolenbxvkitsecrets rr r +s e D K # #E AX!OE$VU34Ke,-M" B %A %A i(AHHQ[     A Ay!((*A i(AHHQ[     A Ay!((*A  !funAy)002A FA!fun !T"   A~ NI HHQG Y / 6 6 8 HHQ9 % , , .% r)rr)__doc__r!binasciirutilrrr_compatr__all__r r r rrr7s3  EE B ,F/r