Alexander Iliev Sean W. Smith Prototyping an Armored Data Vault: Rights Management on Big Brother's Computer. 144-159 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2482&spage=144 2002 conf/pet/2002 Privacy Enhancing Technologies db/conf/pet/pet2002.html#IlievS02