def METHOD_NAME(self, data_instances, cache_data):
    LOGGER.info("Start ECDH Intersection with cache")
    id_intersect_cipher_cipher = self.get_intersect_doubly_encrypted_id_from_cache(data_instances, cache_data)
    intersect_ids = self.decrypt_intersect_doubly_encrypted_id(id_intersect_cipher_cipher)
    return intersect_ids