Jari Arkko Pekka Nikander Weak Authentication: How to Authenticate Unknown Principals without Trusted Parties. 5-19 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2845&spage=5 2002 conf/spw/2002 Security Protocols Workshop db/conf/spw/spw2002.html#ArkkoN02