The invention relates to a transparent proxy as well as methods of caching and providing encrypted data content at the transparent proxy. In a first aspect of the present invention, a method of providing requested encrypted data content at a transparent proxy in a communications network is provided. The method comprises receiving from a client an encrypted identifier indicating the requested encrypted data content at the proxy, identifying the encrypted data content from the received encrypted identifier, determining whether the client is authorized to access the encrypted data content, and if so providing the requested encrypted data content to the client.