qtj" ZdZddlZddlmZddlmZmZmZddlm Z gdZ dZ d Z d d Z dS) 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_kctt|d}t|dz}||kr|||z z S|S)N)intrlen)dataqlenxls K/var/www/html/CA-Chatbot/venv/lib/python3.11/site-packages/ecdsa/rfc6979.pyr r sB GDMM2A D A A4xxQX Hcvt|t|}||z }|dkr|}t||S)Nr)r rr)rorderz1z2s rr r s@ $ 5)) * *B eB Avv  U + ++rrct|}|j}|dzdz}tt||tt ||t|f} d|z} d|z} t j| |} | | dz| D]} | | | } t j| | |} t j| |} | | dz| D]} | | | } t j| | |} d} t| |kr@t j| | |} | | z } t| |k@t| |}d|cxkr|krnn |d kr|S|dz}t j| | dz|} t 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) digestmodTrrr) r digest_sizerrr hmacnewupdatedigestrr )rsecexp hash_funcr retry_gen extra_entropyrholenrolenbxvkitsecrets rr r +sX e  D IKK #E AX!OE$VU3344Ke,,--M"" B %A %A i(((AHHQ[     A Ay!!((**A i(((AHHQ[     A Ay!!((**A/ !ffunnAy))0022A FA!ffunn !T""          A~~ NI HQG Y / / 6 6 8 8 HQ9 % % , , . .%/r)rr)__doc__r!binasciirutilrrr_compatr__all__r r r rrr7s   EEEEEEEEEE B A A   ,,,F/F/F/F/F/F/r