@classmethod
def decode_ssh_private(cls, packet):
    """Decode an SSH format SK ECDSA private key"""
    curve_id = packet.get_string()
    public_value = packet.get_string()
    application = packet.get_string()
    flags = packet.get_byte()
    key_handle = packet.get_string()
    reserved = packet.get_string()
    return curve_id, public_value, application, flags, key_handle, reserved
