3 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
4 <title>Using keys manager for verification/decryption.</title>
5 <meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.79">
6 <link rel="HOME" title="XML Security Library Reference Manual" href="index.html">
7 <link rel="UP" title="Keys manager." href="xmlsec-notes-keysmngr.html">
8 <link rel="PREVIOUS" title="Using keys manager for signatures/encryption." href="xmlsec-notes-keys-manager-sign-enc.html">
9 <link rel="NEXT" title="Implementing a custom keys store." href="xmlsec-notes-custom-keys-store.html">
10 <style type="text/css">.synopsis, .classsynopsis {
12 border: solid 1px #aaaaaa;
17 border: solid 1px #aaaaff;
26 border: solid 1px #ffaaaa;
33 .navigation a:visited {
40 <body><table witdh="100%" valign="top"><tr valign="top">
41 <td valign="top" align="left" width="210">
42 <img src="../images/logo.gif" alt="XML Security Library" border="0"><p></p>
44 <li><a href="../index.html">Home</a></li>
45 <li><a href="../download.html">Download</a></li>
46 <li><a href="../news.html">News</a></li>
47 <li><a href="../documentation.html">Documentation</a></li>
49 <li><a href="../faq.html">FAQ</a></li>
50 <li><a href="../api/xmlsec-notes.html">Tutorial</a></li>
51 <li><a href="../api/xmlsec-reference.html">API reference</a></li>
52 <li><a href="../api/xmlsec-examples.html">Examples</a></li>
54 <li><a href="../xmldsig.html">XML Digital Signature</a></li>
55 <ul><li><a href="http://www.aleksey.com/xmlsec/xmldsig-verifier.html">Online Verifier</a></li></ul>
56 <li><a href="../xmlenc.html">XML Encryption</a></li>
57 <li><a href="../c14n.html">XML Canonicalization</a></li>
58 <li><a href="../bugs.html">Reporting Bugs</a></li>
59 <li><a href="http://www.aleksey.com/pipermail/xmlsec">Mailing list</a></li>
60 <li><a href="../related.html">Related</a></li>
61 <li><a href="../authors.html">Authors</a></li>
66 <td><a href="http://xmlsoft.org/"><img src="../images/libxml2-logo.png" alt="LibXML2" border="0"></a></td>
70 <td><a href="http://xmlsoft.org/XSLT"><img src="../images/libxslt-logo.png" alt="LibXSLT" border="0"></a></td>
74 <td><a href="http://www.openssl.org/"><img src="../images/openssl-logo.png" alt="OpenSSL" border="0"></a></td>
76 <!--Links - start--><!--Links - end-->
79 <td valign="top"><table width="100%" valign="top"><tr><td valign="top" align="left" id="xmlsecContent">
80 <table width="100%" class="navigation" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle">
81 <td><a accesskey="p" href="xmlsec-notes-keys-manager-sign-enc.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
82 <td><a accesskey="u" href="xmlsec-notes-keysmngr.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
83 <td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
84 <th width="100%" align="center">XML Security Library Reference Manual</th>
85 <td><a accesskey="n" href="xmlsec-notes-custom-keys-store.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
87 <br clear="all"><div class="SECT1">
88 <h1 class="SECT1"><a name="XMLSEC-NOTES-KEYS-MNGR-VERIFY-DECRYPT">Using keys manager for verification/decryption.</a></h1>
89 <p>If more than one key could be used for signature or encryption,
90 then using <code class="STRUCTFIELD">signKey</code> member of
91 <a href="xmlsec-xmldsig.html#XMLSECDSIGCTX">xmlSecDSigCtx</a> structure or
92 <code class="STRUCTFIELD">encKey</code> member of
93 <a href="xmlsec-xmlenc.html#XMLSECENCCTX">xmlSecEncCtx</a> structure
94 is not possible. Instead, the application should load known keys in
95 the keys manager and use <dsig:KeyName/> element to specify
100 <a name="AEN391"></a><p><b>Example 3. Initializing keys manager and loading DES keys from binary files.</b></p>
101 <pre class="PROGRAMLISTING">/**
103 * @files: the list of filenames.
104 * @files_size: the number of filenames in #files.
106 * Creates default keys manager and load DES keys from #files in it.
107 * The caller is responsible for destroing returned keys manager using
108 * @xmlSecKeysMngrDestroy.
110 * Returns the pointer to newly created keys manager or NULL if an error
114 load_des_keys(char** files, int files_size) {
115 xmlSecKeysMngrPtr mngr;
120 assert(files_size > 0);
122 /* create and initialize keys manager, we use a default list based
123 * keys manager, implement your own xmlSecKeysStore klass if you need
124 * something more sophisticated
126 mngr = xmlSecKeysMngrCreate();
128 fprintf(stderr, "Error: failed to create keys manager.\n");
131 if(xmlSecCryptoAppDefaultKeysMngrInit(mngr) < 0) {
132 fprintf(stderr, "Error: failed to initialize keys manager.\n");
133 xmlSecKeysMngrDestroy(mngr);
137 for(i = 0; i < files_size; ++i) {
141 key = xmlSecKeyReadBinaryFile(xmlSecKeyDataDesId, files[i]);
143 fprintf(stderr,"Error: failed to load des key from binary file \"%s\"\n", files[i]);
144 xmlSecKeysMngrDestroy(mngr);
148 /* set key name to the file name, this is just an example! */
149 if(xmlSecKeySetName(key, BAD_CAST files[i]) < 0) {
150 fprintf(stderr,"Error: failed to set key name for key from \"%s\"\n", files[i]);
151 xmlSecKeyDestroy(key);
152 xmlSecKeysMngrDestroy(mngr);
156 /* add key to keys manager, from now on keys manager is responsible
159 if(xmlSecCryptoAppDefaultKeysMngrAdoptKey(mngr, key) < 0) {
160 fprintf(stderr,"Error: failed to add key from \"%s\" to keys manager\n", files[i]);
161 xmlSecKeyDestroy(key);
162 xmlSecKeysMngrDestroy(mngr);
170 <p><a href="xmlsec-decrypt-with-keys-mngr.html#XMLSEC-EXAMPLE-DECRYPT2">Full program listing</a></p>
173 <table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="2"><tr valign="middle">
174 <td align="left"><a accesskey="p" href="xmlsec-notes-keys-manager-sign-enc.html"><b><<< Using keys manager for signatures/encryption.</b></a></td>
175 <td align="right"><a accesskey="n" href="xmlsec-notes-custom-keys-store.html"><b>Implementing a custom keys store. >>></b></a></td>
177 </td></tr></table></td>