1 % run this through PhD-TeX
7 \def\appendix#1#2{\dosection{Appendix #1: #2}}
13 {\it Proceedings, Second International Symposium on Computer Message
23 Copyright $\copyright$ {\oldstyle 1985},
28 \def\uci@footpage{\draftstring\hfil\rm\folio}
39 \def\TTI/{{\sl TTI\/}}
42 \def\itemm$#1${\item{$#1\/$:}}
45 Design of the TTI Prototype\\
46 Trusted Mail Agent\title
47 Marshall T.~Rose$^\dagger$\\
49 Stephen T.~Walker\author\info
50 \footnote{}{\hskip -\parindent
51 $^\dagger$ All three authors are with Trusted Technologies, Incorporated,
52 POB~45, Glenwood,~MD~21738, USA.
53 Telephone: 301/854--6889.
54 In addition, Professor Farber is with the University of Delaware.}
56 \centerline{\sc Abstract}
57 {\rightskip=0pt\narrower\narrower
59 The design of the \TTI/ prototype Trusted Mail Agent (\TMA/) is discussed.
60 This agent interfaces between two entities:
61 a key distribution center (\KDC/) and a user agent (\UA/).
62 The \KDC/ manages keys for the encryption of text messages,
63 which two subscribers to a key distribution service (\KDS/) may exchange.
64 The \TMA/ is independent of any underlying message transport system.
67 Subscribers to the \KDC/ are known by unique identifiers,
69 In addition to distributing keys,
70 the \KDC/ also offers a simple directory lookup service,
71 in which the ``real-world'' name of a subscriber may be mapped to an ID,
72 or the inverse mapping may be performed.
75 This document details three software components:
77 a prototype key distribution service,
78 which has been running in a TCP/IP environment since December, 1984;
80 a prototype trusted mail agent;
83 modifications to an existing \UA/,
84 the Rand \MH/ Message Handling system,
85 which permit interaction with the prototype \TMA/.
94 \unskip\footnote{}{\hskip -\parskip This document (version \versiontag/)
95 was \TeX set \today\ with DISS.STY v\version.}