Security Analysis of (Un-) Fair Non-repudiation Protocols.

Sigrid Gürgens Carsten Rudolph Security Analysis of (Un-) Fair Non-repudiation Protocols. 97-114 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2629&spage=97 2002 conf/fasec/2002 FASec db/conf/fasec/fasec2002.html#GurgensR02