----- Forwarded message from send mail ONLY to cs ----- >From [EMAIL PROTECTED] Mon Sep 20 20:32:30 1999 Return-Path: <[EMAIL PROTECTED]> Received: from yyy.lanl.gov (yyy.lanl.gov [204.121.6.60]) by suburbia.net (Postfix) with ESMTP id 8C5026C6A1 for <[EMAIL PROTECTED]>; Mon, 20 Sep 1999 20:32:26 +1000 (EST) Received: from xxx.lanl.gov (xxx.lanl.gov [204.121.6.57]) by yyy.lanl.gov (x.x.x/x.x.x) with ESMTP id EAA19776; Mon, 20 Sep 1999 04:24:00 -0600 (MDT) Received: (from e-prints@localhost) by xxx.lanl.gov (x.x.x/x.x.x) id EAA20069; Mon, 20 Sep 1999 04:24:00 -0600 Date: Mon, 20 Sep 1999 04:24:00 -0600 Message-Id: <[EMAIL PROTECTED]> Precedence: bulk X-Note: e-print archive software written by PG at LANL (8/91,...,3/98) GTDA X-Supported-By: U.S. National Science Foundation, Agreement 9413208 (3/95-9/00) From: [EMAIL PROTECTED] (send mail ONLY to cs) Reply-To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] (cs daily title/abstract distribution) Subject: cs daily Subj-class mailing 1 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ send mail only to [EMAIL PROTECTED], do not reply to no-reply@... send any complaints regarding submissions directly to submitter. use a single `get' to request multiple papers, `list macros' for available macro packages, and `help' for a list of available commands and other info. ------------------------------------------------------------------------------ point your www client at http://xxx.lanl.gov/ ------------------------------------------------------------------------------ Submissions to: Cryptography and Security received from Thu 16 Sep 99 23:00:01 GMT to Fri 17 Sep 99 23:00:00 GMT ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ \\ Paper: cs.CR/9909012 From: Jan Willemson <[EMAIL PROTECTED]> Date: Fri, 17 Sep 1999 08:00:35 GMT (14kb) Title: Certificate Revocation Paradigms Authors: Jan Willemson Comments: Tech report on 14 pages, 2 figures Subj-class: Cryptography and Security ACM-class: E.3;H.3 \\ Research in the field of electronic signature confirmation has been active for some 20 years now. Unfortunately present certificate-based solutions also come from that age when no-one knew about online data transmission. The official standardized X.509 framework also depends heavily on offline operations, one of the most complicated ones being certificate revocation handling. This is done via huge Certificate Revocation Lists which are both inconvenient and expencive. Several improvements to these lists are proposed and in this report we try to analyze them briefly. We conclude that although it is possible to do better than in the original X.509 setting, none of the solutions presented this far is good enough. \\ ( http://xxx.lanl.gov/abs/cs/9909012 , 14kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- ----- End of forwarded message from send mail ONLY to cs -----