Telethon/telethon/crypto/auth_key.py

23 lines
777 B
Python
Raw Normal View History

from telethon.utils import BinaryWriter, BinaryReader
import telethon.helpers as utils
2016-08-28 20:26:06 +03:00
class AuthKey:
def __init__(self, data):
self.key = data
2016-08-28 20:26:06 +03:00
2016-08-30 18:40:49 +03:00
with BinaryReader(utils.sha1(self.key)) as reader:
2016-08-28 20:26:06 +03:00
self.aux_hash = reader.read_long(signed=False)
reader.read(4)
self.key_id = reader.read_long(signed=False)
def calc_new_nonce_hash(self, new_nonce, number):
"""Calculates the new nonce hash based on the current class fields' values"""
2016-08-28 20:26:06 +03:00
with BinaryWriter() as writer:
writer.write(new_nonce)
writer.write_byte(number)
writer.write_long(self.aux_hash, signed=False)
new_nonce_hash = utils.calc_msg_key(writer.get_bytes())
2016-08-28 20:26:06 +03:00
return new_nonce_hash