Hi. I believe you are talking about the paper that Jeff Schiller and I presented at the January '95 USENIX Conference, _Scaling the Web of Trust_. You can find this paper (in ASCII or PS) via ftp: ftp://toxicwaste.mit.edu/pub/pgpsign/scaleweb.txt ftp://toxicwaste.mit.edu/pub/pgpsign/scaleweb.PS -derek