Подписка строки закрытым ключом

from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
from cryptography.hazmat.primitives.serialization import load_pem_private_key
from cryptography.hazmat.backends import default_backend
import base64
import requests


def load_private_key(filename):
with open(filename, "rb") as key_file:
return load_pem_private_key(key_file.read(), password=None, backend=default_backend())


def create_signature(key, data):
signature = key.sign(
data,
padding.PKCS1v15(),
hashes.SHA256()
)
return base64.b64encode(signature).decode()


private_key_path = "C:/1С/private.pem"
private_key = load_private_key(private_key_path)

data_to_sign = "https://blabla/api/v1/extensions/status/ef7e2d931df541bc9dba7125f5­3dfa27".encode()

signature_base64 = create_signature(private_key, data_to_sign)

url = "https://blabla/api/v1/extensions/status/ef7e2d931df541bc9dba7125f5­3dfa27"

headers = {
'X-Request-Signature': signature_base64
}

response = requests.get(url, headers=headers)
response.encoding = 'utf-8'

print(response.text)
print(response.status_code)