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1 % run this through PhD-TeX
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2
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3 \input dcustom
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4 \articlestyle
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5 \input version
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6
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7 \def\appendix#1#2{\dosection{Appendix #1: #2}}
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8
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9 \def\draftext{%
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10 \begingroup
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11 \eightpoint\sf
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12 Reprinted from
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13 {\it Proceedings, Second International Symposium on Computer Message
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14 Systems},
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15 {\oldstyle 1985}%
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16 \endgroup
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17 }
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18 \catcode`\@=11
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19 \def\draftstring{%
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20 \ifnum\pageno>\z@
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21 \begingroup
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22 \eightpoint\sf
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23 Copyright $\copyright$ {\oldstyle 1985},
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24 IFIP TC-6
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25 \endgroup
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26 \fi
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27 }
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28 \def\uci@footpage{\draftstring\hfil\rm\folio}
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29 \catcode`\@=12
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30
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31 \input sfwmac
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32 \def\CKD/{{\sf CKD}}
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33 \def\CSM/{{\sf CSM}}
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34 \def\KDC/{{\sf KDC}}
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35 \def\KDS/{{\sf KDS}}
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36 \def\MTA/{{\sf MTA}}
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37 \def\MTS/{{\sf MTS}}
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38 \def\TMA/{{\sf TMA}}
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39 \def\TTI/{{\sl TTI\/}}
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40 \def\UA/{{\sf UA}}
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41
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42 \def\itemm$#1${\item{$#1\/$:}}
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43
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44 \header
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45 Design of the TTI Prototype\\
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46 Trusted Mail Agent\title
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47 Marshall T.~Rose$^\dagger$\\
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48 David J.~Farber\\
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49 Stephen T.~Walker\author\info
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50 \footnote{}{\hskip -\parindent
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51 $^\dagger$ All three authors are with Trusted Technologies, Incorporated,
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52 POB~45, Glenwood,~MD~21738, USA.
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53 Telephone: 301/854--6889.
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54 In addition, Professor Farber is with the University of Delaware.}
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55
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56 \centerline{\sc Abstract}
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57 {\rightskip=0pt\narrower\narrower
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58 \noindent
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59 The design of the \TTI/ prototype Trusted Mail Agent (\TMA/) is discussed.
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60 This agent interfaces between two entities:
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61 a key distribution center (\KDC/) and a user agent (\UA/).
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62 The \KDC/ manages keys for the encryption of text messages,
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63 which two subscribers to a key distribution service (\KDS/) may exchange.
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64 The \TMA/ is independent of any underlying message transport system.
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65
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66 \lp
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67 Subscribers to the \KDC/ are known by unique identifiers,
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68 known as IDs.
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69 In addition to distributing keys,
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70 the \KDC/ also offers a simple directory lookup service,
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71 in which the ``real-world'' name of a subscriber may be mapped to an ID,
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72 or the inverse mapping may be performed.
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73
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74 \lp
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75 This document details three software components:
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76 \underbar{first},
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77 a prototype key distribution service,
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78 which has been running in a TCP/IP environment since December, 1984;
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79 \underbar{second},
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80 a prototype trusted mail agent;
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81 and,
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82 \underbar{third},
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83 modifications to an existing \UA/,
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84 the Rand \MH/ Message Handling system,
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85 which permit interaction with the prototype \TMA/.
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86 \par}
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87
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88 \input text
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89 \input refs
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90 \input appendixA
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91 \input appendixB
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92 \input appendixC
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93 \printcontents
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94 \unskip\footnote{}{\hskip -\parskip This document (version \versiontag/)
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95 was \TeX set \today\ with DISS.STY v\version.}
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96 \showsummary
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97
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98 \bye
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