Jeffrey I. Schiller is Network Manager at MIT and has managed the MIT Campus Computer Network since its inception in 1984. Prior to his work with the Network Group, he maintained MIT's Multics timesharing system during the time frame of the ArpaNet TCP/IP conversion. Mr. Schiller is an author of MIT's Kerberos Authentication system. From 1994 through 2003, he was the Internet Engineering Steering Group's (IESG) Area Director for Security, responsible for overseeing security-related Working Groups of the Internet Engineering Task Force (IETF). He was responsible for releasing a US legal freeware version of the popular PGP encryption program. Mr. Schiller is also responsible for the development and deployment of an X.509-based public key infrastructure at MIT. He was the technical lead for the Higher Education Certifying Authority operated by the Corporation for Research and Educational Networking (CREN) from 1999 until 2003. Mr. Schiller is a founding member of the Steering Group of the New England Academic and Research Network (NEARnet). NEARnet, now part of Level3, is a major nationwide ISP. He can be reached at jis at mit.edu.