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<h1>
<a name="XMLSEC-OPENSSL-BN"></a>bn</h1>
<div class="REFNAMEDIV">
<a name="AEN27077"></a><h2>Name</h2>bn -- Big numbers helper functions.</div>
<div class="REFSYNOPSISDIV">
<a name="XMLSEC-OPENSSL-BN.SYNOPSIS"></a><h2>Synopsis</h2>
<pre class="SYNOPSIS"><gtkdoclink href="BIGNUM:CAPS"><span class="RETURNVALUE">BIGNUM</span></gtkdoclink>* <a href="xmlsec-openssl-bn.html#XMLSECOPENSSLNODEGETBNVALUE">xmlSecOpenSSLNodeGetBNValue</a> (<code class="PARAMETER">const <gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> cur</code>,
<code class="PARAMETER"><gtkdoclink href="BIGNUM:CAPS"><span class="TYPE">BIGNUM</span></gtkdoclink> **a</code>);
<gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink><a href="xmlsec-openssl-bn.html#XMLSECOPENSSLNODESETBNVALUE">xmlSecOpenSSLNodeSetBNValue</a> (<code class="PARAMETER"><gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> cur</code>,
<code class="PARAMETER">const <gtkdoclink href="BIGNUM:CAPS"><span class="TYPE">BIGNUM</span></gtkdoclink> *a</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> addLineBreaks</code>);</pre>
</div>
<div class="REFSECT1">
<a name="XMLSEC-OPENSSL-BN.DESCRIPTION"></a><h2>Description</h2>
<p>Big numbers helper functions.</p>
</div>
<div class="REFSECT1">
<a name="XMLSEC-OPENSSL-BN.DETAILS"></a><h2>Details</h2>
<div class="REFSECT2">
<a name="XMLSECOPENSSLNODEGETBNVALUE"></a><h3>xmlSecOpenSSLNodeGetBNValue ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="BIGNUM:CAPS"><span class="RETURNVALUE">BIGNUM</span></gtkdoclink>* xmlSecOpenSSLNodeGetBNValue (<code class="PARAMETER">const <gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> cur</code>,
<code class="PARAMETER"><gtkdoclink href="BIGNUM:CAPS"><span class="TYPE">BIGNUM</span></gtkdoclink> **a</code>);</pre>
<p>Converts the node content from CryptoBinary format
(http://www.w3.org/TR/xmldsig-core/<gtkdoclink href="SEC-CRYPTOBINARY"><span class="TYPE">sec-CryptoBinary</span></gtkdoclink>)
to a BIGNUM. If no BIGNUM buffer provided then a new
BIGNUM is created (caller is responsible for freeing it).</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN27126"><span style="white-space: nowrap"><code class="PARAMETER">cur</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the poitner to an XML node.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN27131"><span style="white-space: nowrap"><code class="PARAMETER">a</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the BIGNUM buffer.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN27136"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p> a pointer to BIGNUM produced from CryptoBinary string
or NULL if an error occurs.</p></td>
</tr>
</tbody></table>
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<hr>
<div class="REFSECT2">
<a name="XMLSECOPENSSLNODESETBNVALUE"></a><h3>xmlSecOpenSSLNodeSetBNValue ()</h3>
<pre class="PROGRAMLISTING"><gtkdoclink href="INT"><span class="RETURNVALUE">int</span></gtkdoclink> xmlSecOpenSSLNodeSetBNValue (<code class="PARAMETER"><gtkdoclink href="XMLNODE"><span class="TYPE">xmlNodePtr</span></gtkdoclink> cur</code>,
<code class="PARAMETER">const <gtkdoclink href="BIGNUM:CAPS"><span class="TYPE">BIGNUM</span></gtkdoclink> *a</code>,
<code class="PARAMETER"><gtkdoclink href="INT"><span class="TYPE">int</span></gtkdoclink> addLineBreaks</code>);</pre>
<p>Converts BIGNUM to CryptoBinary string
(http://www.w3.org/TR/xmldsig-core/<gtkdoclink href="SEC-CRYPTOBINARY"><span class="TYPE">sec-CryptoBinary</span></gtkdoclink>)
and sets it as the content of the given node. If the
addLineBreaks is set then line breaks are added
before and after the CryptoBinary string.</p>
<p></p>
<table class="variablelist" border="0" cellspacing="0" cellpadding="4"><tbody>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN27161"><span style="white-space: nowrap"><code class="PARAMETER">cur</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the pointer to an XML node.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN27166"><span style="white-space: nowrap"><code class="PARAMETER">a</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>the BIGNUM.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN27171"><span style="white-space: nowrap"><code class="PARAMETER">addLineBreaks</code> :</span></a></td>
<td align="LEFT" valign="TOP"><p>if the flag is equal to 1 then
linebreaks will be added before and after
new buffer content.</p></td>
</tr>
<tr>
<td align="LEFT" valign="TOP"><a name="AEN27176"><span style="white-space: nowrap"><span class="emphasis"><i class="EMPHASIS">Returns</i></span> :</span></a></td>
<td align="LEFT" valign="TOP"><p> 0 on success or -1 otherwise.</p></td>
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