Presume a Libertarian and a Cryptoanarchist but at the least a Cypherpunk which is any activist advocating widespread use of strong cryptography as a route to social and political change. Originally communicating through the Cypherpunks electronic mailing list, informal groups aimed to achieve privacy and security through proactive use of cryptography. Cypherpunks have been engaged in an active movement since the late 1980s.
I wouldn't know for certain but he did develop a system that can be traced to Timothy C. May's 1988 publication The Crypto Anarchist Manifesto
The basic ideas are in this quote from A Cypherpunk's Manifesto (Eric Hughes, 1993):
Privacy is necessary for an open society in the electronic age. ...
We cannot expect governments, corporations, or other large, faceless organizations to grant us privacy ...
We must defend our own privacy if we expect to have any. ...
Cypherpunks write code. We know that someone has to write software to defend privacy, and ... we're going to write it. ...
Wiki for more info on those streams of thought
http://en.wikipedia.org/wiki/Crypto-anarchismhttp://en.wikipedia.org/wiki/Cypherpunk