service_account.py 文件源码

def _get_private_key(private_key_pkcs8_text):
  """Get an RSA private key object from a pkcs8 representation."""

  der = rsa.pem.load_pem(private_key_pkcs8_text, 'PRIVATE KEY')
  asn1_private_key, _ = decoder.decode(der, asn1Spec=PrivateKeyInfo())
  return rsa.PrivateKey.load_pkcs1(
      asn1_private_key.getComponentByName('privateKey').asOctets(),
      format='DER')