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<div class="sect1">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="xmlsec-notes-simple-keys-store"></a>Simple keys store.</h2></div></div></div>
<p>
XML Security Library has a built-in simple keys store
implemented using a keys list. You can use it in your application
if you have a small number of keys. However, this might be not a
best option from performance point of view if you have a lot of keys.
In this case, you probably should implement your own keys store
using an SQL database or some other keys storage.
</p>
<p>
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<div class="example">
<a name="id-1.2.10.3.3.1"></a><p class="title"><b>Example 16. Initializing keys manager and loading keys from PEM files.</b></p>
<div class="example-contents">
<pre class="programlisting">
/**
* load_keys:
* @files: the list of filenames.
* @files_size: the number of filenames in #files.
*
* Creates default keys manager and load PEM keys from #files in it.
* 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_keys(char** files, int files_size) {
xmlSecKeysMngrPtr mngr;
xmlSecKeyPtr key;
int i;
assert(files);
assert(files_size > 0);
/* create and initialize keys manager, we use a default 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 key */
key = xmlSecCryptoAppKeyLoad(files[i], xmlSecKeyDataFormatPem, NULL, NULL, NULL);
if(key == NULL) {
fprintf(stderr,"Error: failed to load pem key from \"%s\"\n", files[i]);
xmlSecKeysMngrDestroy(mngr);
return(NULL);
}
/* set key name to the file name, this is just an example! */
if(xmlSecKeySetName(key, BAD_CAST files[i]) < 0) {
fprintf(stderr,"Error: failed to set key name for key from \"%s\"\n", files[i]);
xmlSecKeyDestroy(key);
xmlSecKeysMngrDestroy(mngr);
return(NULL);
}
/* add key to keys manager, from now on keys manager is responsible
* for destroying key
*/
if(xmlSecCryptoAppDefaultKeysMngrAdoptKey(mngr, key) < 0) {
fprintf(stderr,"Error: failed to add key from \"%s\" to keys manager\n", files[i]);
xmlSecKeyDestroy(key);
xmlSecKeysMngrDestroy(mngr);
return(NULL);
}
}
return(mngr);
}
</pre>
<p><a class="link" href="xmlsec-verify-with-keys-mngr.html#xmlsec-example-verify2" title="verify2.c">Full program listing</a></p>
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