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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML><HEAD> <META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.21"> <TITLE>XCA : Introduction</TITLE> <LINK HREF="xca-2.html" REL=next> <LINK HREF="xca.html#toc1" REL=contents></HEAD><BODY><A HREF="xca-2.html">Next</A>Previous<A HREF="xca.html#toc1">Contents</A><HR><H2><A NAME="s1">1.</A> <A HREF="xca.html#toc1">Introduction</A></H2><P><!--(your index root)!introduction--> This application is intended as Certificate and Keystore and as signing application issuing certificates.</P><P>All datastructures (Keys, Certificate signing requests, Certificates and Templates) can be importedand exported in several formats like DER or PEM.Import means reading a file from the filesystem and storing the datastructureinto the databasefile, while exporting means to write the datastructurefrom the databasefile to the filesystem to be e.g imported to an other application.</P><P>When starting the application the first time, it needs a password to encrypt theprivate keys in the database.After starting the application all RSA keys are hold <B>unencrypted</B> in the RAM of the computer.This is a security issue to be aware of.</P><P>The different parts are divided over 4 Tabs: Keys, Requests, Certificates and Templates.All items can be manipulated either by a context menu available byright-clicking on the item, or by using the buttons at the right border.Every item gets an internal name which is unique in one tab-view and isalways shown in the first column.</P><H2><A NAME="ss1.1">1.1</A> <A HREF="xca.html#toc1.1">File formats</A></H2><P>There are several default file-formats to exchange cryptographic the data withother applications.<UL><LI><B>DER</B> is the ASN.1 encoding of the data.</LI><LI><B>PEM</B> is the base64 encoded version of the <B>DER</B> formatted data with additional header and footer lines to be transported via e.g. E-mail</LI><LI><B>PKCS#X</B> <B>P</B>ublic <B>K</B>ey <B>C</B>ryptography <B>S</B>tandards published by <A HREF="http://www.rsasecurity.com">RSA Laboratories</A> </LI></UL></P><H2><A NAME="otherdoc"></A> <A NAME="ss1.2">1.2</A> <A HREF="xca.html#toc1.2">Further reading </A></H2><P><OL><LI><A HREF="http://tldp.org/HOWTO/SSL-Certificates-HOWTO/">SSL Certificates HOWTO</A></LI><LI><A HREF="http://ospkibook.sourceforge.net/">OS-PKI book</A></LI></OL></P><H2><A NAME="ss1.3">1.3</A> <A HREF="xca.html#toc1.3">Copyright</A></H2><P><BLOCKQUOTE><CODE><PRE>/* * Copyright (C) 2001 Christian Hohnstaedt. * * All rights reserved. * * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * - Neither the name of the author nor the names of its contributors may be * used to endorse or promote products derived from this software without * specific prior written permission. * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * This program links to software with different licenses from: * * http://www.openssl.org which includes cryptographic software * written by Eric Young (eay@cryptsoft.com)" * * http://www.sleepycat.com * * http://www.trolltech.com * * * * http://www.hohnstaedt.de/xca * email: christian@hohnstaedt.de * */ </PRE></CODE></BLOCKQUOTE></P><H2><A NAME="ss1.4">1.4</A> <A HREF="xca.html#toc1.4">Credits</A></H2><P>In this version I have the pleasure of acknowledging<BLOCKQUOTE><CODE><PRE>Kerstin Steinhauff <tine (at) kerstine.de> Arts, graphics, testing, SuSE rpm buildingIlya Kozhevnikov <ilya (at) ef.unn.ru> Compiling and testing the WIN32-port</PRE></CODE></BLOCKQUOTE></P><P>Thank you very much.</P><HR><A HREF="xca-2.html">Next</A>Previous<A HREF="xca.html#toc1">Contents</A></BODY></HTML>?? 快捷鍵說明
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