Nodes on a wide area network such as the Internet may communicate with multiple Internet Protocol Version 6 nodes on a private network despite the lack of domain name service server support. Disclosed is a policy-driven augmented style sheet processor that creates a selectively-encrypted document carrying key-distribution material, such that by using an augmented document processor, an agent can recover only the information elements for which it is authorized. Preferably, the etchant is chlorine gas so that a relatively low temperature is used during the process.