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diff --git a/docs/api/xmlsec-notes-verify-x509.html b/docs/api/xmlsec-notes-verify-x509.html new file mode 100644 index 00000000..9e8c87d9 --- /dev/null +++ b/docs/api/xmlsec-notes-verify-x509.html @@ -0,0 +1,180 @@ +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>Verifing document signed with X509 certificates.</title> +<meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.79"> +<link rel="HOME" title="XML Security Library Reference Manual" href="index.html"> +<link rel="UP" title="Using X509 Certificates." href="xmlsec-notes-x509.html"> +<link rel="PREVIOUS" title="Signing data with X509 certificate." href="xmlsec-notes-sign-x509.html"> +<link rel="NEXT" title="Transforms and transforms chain." href="xmlsec-notes-transforms.html"> +<style type="text/css">.synopsis, .classsynopsis { + background: #eeeeee; + border: solid 1px #aaaaaa; + padding: 0.5em; +} +.programlisting { + background: #eeeeff; + border: solid 1px #aaaaff; + padding: 0.5em; +} +.variablelist { + padding: 4px; + margin-left: 3em; +} +.navigation { + background: #ffeeee; + border: solid 1px #ffaaaa; + margin-top: 0.5em; + margin-bottom: 0.5em; +} +.navigation a { + color: #770000; +} +.navigation a:visited { + color: #550000; +} +.navigation .title { + font-size: 200%; +}</style> +</head> +<body><table witdh="100%" valign="top"><tr valign="top"> +<td valign="top" align="left" width="210"> +<img src="../images/logo.gif" alt="XML Security Library" border="0"><p></p> +<ul> +<li><a href="../index.html">Home</a></li> +<li><a href="../download.html">Download</a></li> +<li><a href="../news.html">News</a></li> +<li><a href="../documentation.html">Documentation</a></li> +<ul> +<li><a href="../faq.html">FAQ</a></li> +<li><a href="../api/xmlsec-notes.html">Tutorial</a></li> +<li><a href="../api/xmlsec-reference.html">API reference</a></li> +<li><a href="../api/xmlsec-examples.html">Examples</a></li> +</ul> +<li><a href="../xmldsig.html">XML Digital Signature</a></li> +<ul><li><a href="http://www.aleksey.com/xmlsec/xmldsig-verifier.html">Online Verifier</a></li></ul> +<li><a href="../xmlenc.html">XML Encryption</a></li> +<li><a href="../c14n.html">XML Canonicalization</a></li> +<li><a href="../bugs.html">Reporting Bugs</a></li> +<li><a href="http://www.aleksey.com/pipermail/xmlsec">Mailing list</a></li> +<li><a href="../related.html">Related</a></li> +<li><a href="../authors.html">Authors</a></li> +</ul> +<table width="100%"> +<tr> +<td width="15"></td> +<td><a href="http://xmlsoft.org/"><img src="../images/libxml2-logo.png" alt="LibXML2" border="0"></a></td> +</tr> +<tr> +<td width="15"></td> +<td><a href="http://xmlsoft.org/XSLT"><img src="../images/libxslt-logo.png" alt="LibXSLT" border="0"></a></td> +</tr> +<tr> +<td width="15"></td> +<td><a href="http://www.openssl.org/"><img src="../images/openssl-logo.png" alt="OpenSSL" border="0"></a></td> +</tr> +<!--Links - start--><!--Links - end--> +</table> +</td> +<td valign="top"><table width="100%" valign="top"><tr><td valign="top" align="left" id="xmlsecContent"> +<table width="100%" class="navigation" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"> +<td><a accesskey="p" href="xmlsec-notes-sign-x509.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td> +<td><a accesskey="u" href="xmlsec-notes-x509.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td> +<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td> +<th width="100%" align="center">XML Security Library Reference Manual</th> +<td><a accesskey="n" href="xmlsec-notes-transforms.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td> +</tr></table> +<br clear="all"><div class="SECT1"> +<h1 class="SECT1"><a name="XMLSEC-NOTES-VERIFY-X509">Verifing document signed with X509 certificates.</a></h1> +<p> If the document is signed with an X509 certificate then the signature + verification consist of two steps: + </p> +<p></p> +<ul> +<li><p>Creating and verifing X509 certificates chain. + </p></li> +<li><p>Verifing signature itself using key exrtacted from + a certificate verified on previous step. + </p></li> +</ul> + Certificates chain is constructed from certificates in a way that + each certificate in the chain is signed with previous one: + <div class="FIGURE"> +<a name="AEN442"></a><p><b>Figure 1. Certificates chain.</b></p> +<pre class="PROGRAMLISTING">Certificate A (signed with B) <- Certificate B (signed with C) <- ... <- Root Certificate (signed by itself) + </pre> +</div> + At the end of the chain there is a "Root Certificate" which + is signed by itself. There is no way to verify the validity of the + root certificate and application have to "trust" it + (another name for root certificates is "trusted" certificates). + <p> Application can use <a href="xmlsec-app.html#XMLSECCRYPTOAPPKEYSMNGRCERTLOAD">xmlSecCryptoAppKeysMngrCertLoad</a> + function to load both "trusted" and "un-trusted" + certificates. However, the selection of "trusted" + certificates is very sensitive process and this function might be + not implemented for some crypto engines. In this case, the + "trusted" certificates list is loaded during initialization + or specified in crypto engine configuration files. + Check XML Security Library API reference for more details. + </p> +<div class="EXAMPLE"> +<a name="AEN447"></a><p><b>Example 3. Loading trusted X509 certificate.</b></p> +<pre class="PROGRAMLISTING">/** + * load_trusted_certs: + * @files: the list of filenames. + * @files_size: the number of filenames in #files. + * + * Creates simple keys manager and load trusted certificates from PEM #files. + * The caller is responsible for destroing returned keys manager using + * @xmlSecKeysMngrDestroy. + * + * Returns the pointer to newly created keys manager or NULL if an error + * occurs. + */ +xmlSecKeysMngrPtr +load_trusted_certs(char** files, int files_size) { + xmlSecKeysMngrPtr mngr; + int i; + + assert(files); + assert(files_size > 0); + + /* create and initialize keys manager, we use a simple list based + * keys manager, implement your own xmlSecKeysStore klass if you need + * something more sophisticated + */ + mngr = xmlSecKeysMngrCreate(); + if(mngr == NULL) { + fprintf(stderr, "Error: failed to create keys manager.\n"); + return(NULL); + } + if(xmlSecCryptoAppDefaultKeysMngrInit(mngr) < 0) { + fprintf(stderr, "Error: failed to initialize keys manager.\n"); + xmlSecKeysMngrDestroy(mngr); + return(NULL); + } + + for(i = 0; i < files_size; ++i) { + assert(files[i]); + + /* load trusted cert */ + if(xmlSecCryptoAppKeysMngrCertLoad(mngr, files[i], xmlSecKeyDataFormatPem, xmlSecKeyDataTypeTrusted) < 0) { + fprintf(stderr,"Error: failed to load pem certificate from \"%s\"\n", files[i]); + xmlSecKeysMngrDestroy(mngr); + return(NULL); + } + } + + return(mngr); +} + </pre> +<p><a href="xmlsec-verify-with-x509.html#XMLSEC-EXAMPLE-VERIFY3">Full program listing</a></p> +</div> + </div> +<table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="2"><tr valign="middle"> +<td align="left"><a accesskey="p" href="xmlsec-notes-sign-x509.html"><b><<< Signing data with X509 certificate.</b></a></td> +<td align="right"><a accesskey="n" href="xmlsec-notes-transforms.html"><b>Transforms and transforms chain. >>></b></a></td> +</tr></table> +</td></tr></table></td> +</tr></table></body> +</html> |