Hui-I Hsiao Karen Brannon Secure Information Caching on the Web. 24-35 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3007&spage=24 2004 conf/apweb/2004 APWeb db/conf/apweb/apweb2004.html#HsiaoB04