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25 lines
803 B
Python
25 lines
803 B
Python
from hashlib import sha1
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from .. import helpers as utils
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from ..extensions import BinaryReader, BinaryWriter
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class AuthKey:
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def __init__(self, data):
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self.key = data
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with BinaryReader(sha1(self.key).digest()) as reader:
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self.aux_hash = reader.read_long(signed=False)
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reader.read(4)
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self.key_id = reader.read_long(signed=False)
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def calc_new_nonce_hash(self, new_nonce, number):
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"""Calculates the new nonce hash based on the current class fields' values"""
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with BinaryWriter() as writer:
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writer.write(new_nonce)
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writer.write_byte(number)
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writer.write_long(self.aux_hash, signed=False)
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new_nonce_hash = utils.calc_msg_key(writer.get_bytes())
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return new_nonce_hash
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