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1.1 ! root 1: % run this through PhD-TeX ! 2: ! 3: \input dcustom ! 4: \articlestyle ! 5: \input version ! 6: ! 7: \def\appendix#1#2{\dosection{Appendix #1: #2}} ! 8: ! 9: \def\draftext{% ! 10: \begingroup ! 11: \eightpoint\sf ! 12: Reprinted from ! 13: {\it Proceedings, Second International Symposium on Computer Message ! 14: Systems}, ! 15: Washington, D.C., ! 16: {\oldstyle 1985}% ! 17: \endgroup ! 18: } ! 19: \catcode`\@=11 ! 20: \def\draftstring{% ! 21: \ifnum\pageno>\z@ ! 22: \begingroup ! 23: \eightpoint\sf ! 24: Copyright $\copyright$ {\oldstyle 1985}, ! 25: IFIP TC-6 ! 26: \endgroup ! 27: \fi ! 28: } ! 29: \def\uci@footpage{\draftstring\hfil\rm\folio} ! 30: \catcode`\@=12 ! 31: ! 32: \input sfwmac ! 33: \def\CKD/{{\sf CKD}} ! 34: \def\CSM/{{\sf CSM}} ! 35: \def\KDC/{{\sf KDC}} ! 36: \def\KDS/{{\sf KDS}} ! 37: \def\MTA/{{\sf MTA}} ! 38: \def\MTS/{{\sf MTS}} ! 39: \def\TMA/{{\sf TMA}} ! 40: \def\TTI/{{\sl TTI\/}} ! 41: \def\UA/{{\sf UA}} ! 42: ! 43: \def\itemm$#1${\item{$#1\/$:}} ! 44: ! 45: \header ! 46: Design of the TTI Prototype\\ ! 47: Trusted Mail Agent\title ! 48: Marshall T.~Rose$^\dagger$\\ ! 49: David J.~Farber\\ ! 50: Stephen T.~Walker\author\info ! 51: \footnote{}{\hskip -\parindent ! 52: $^\dagger$ All three authors are with Trusted Technologies, Incorporated, ! 53: POB~45, Glenwood,~MD~21738, USA. ! 54: Telephone: 301/854--6889. ! 55: In addition, Professor Farber is with the University of Delaware.} ! 56: ! 57: \centerline{\sc Abstract} ! 58: {\rightskip=0pt\narrower\narrower ! 59: \noindent ! 60: The design of the \TTI/ prototype Trusted Mail Agent (\TMA/) is discussed. ! 61: This agent interfaces between two entities: ! 62: a key distribution center (\KDC/) and a user agent (\UA/). ! 63: The \KDC/ manages keys for the encryption of text messages, ! 64: which two subscribers to a key distribution service (\KDS/) may exchange. ! 65: The \TMA/ is independent of any underlying message transport system. ! 66: ! 67: \lp ! 68: Subscribers to the \KDC/ are known by unique identifiers, ! 69: known as IDs. ! 70: In addition to distributing keys, ! 71: the \KDC/ also offers a simple directory lookup service, ! 72: in which the ``real-world'' name of a subscriber may be mapped to an ID, ! 73: or the inverse mapping may be performed. ! 74: ! 75: \lp ! 76: This document details three software components: ! 77: \underbar{first}, ! 78: a prototype key distribution service, ! 79: which has been running in a TCP/IP environment since December, 1984; ! 80: \underbar{second}, ! 81: a prototype trusted mail agent; ! 82: and, ! 83: \underbar{third}, ! 84: modifications to an existing \UA/, ! 85: the Rand \MH/ Message Handling system, ! 86: which permit interaction with the prototype \TMA/. ! 87: \par} ! 88: ! 89: \input text ! 90: \input refs ! 91: \input appendixA ! 92: \input appendixB ! 93: \input appendixC ! 94: \printcontents ! 95: \unskip\footnote{}{\hskip -\parskip This document (version \versiontag/) ! 96: was \TeX set \today\ with DISS.STY v\version.} ! 97: \showsummary ! 98: ! 99: \bye
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