There is. Signal uses it, for example. https://signal.org/blog/building-faster-oram/ https://signal.org/blog/building-faster-oram/ For another example, Integri

There is. Signal uses it, for example. https://signal.org/blog/building-faster-oram/ https://signal.org/blog/building-faster-oram/ For another example, IntegriCloud: https://secure.integricloud.com/ https://secure.integricloud.com/