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."""
    private_key_pkcs8_text = _to_bytes(private_key_pkcs8_text)
    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')