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<title>bn</title>
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<h1>
<a name="XMLSEC-OPENSSL-BN"></a>bn</h1>
<div class="REFNAMEDIV">
<a name="AEN30079"></a><h2>Name</h2>bn -- Big numbers helper functions.</div>
<div class="REFSECT1">
<a name="XMLSEC-OPENSSL-BN.FUNCTIONS"></a><h2>Functions</h2>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN30084"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<tbody>
<tr>
<td>
<font><span class="RETURNVALUE">BIGNUM</span></font> *</td>
<td>
<a href="xmlsec-openssl-bn.html#XMLSECOPENSSLNODEGETBNVALUE">xmlSecOpenSSLNodeGetBNValue</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
</tr>
<tr>
<td><font><span class="RETURNVALUE">int</span></font></td>
<td>
<a href="xmlsec-openssl-bn.html#XMLSECOPENSSLNODESETBNVALUE">xmlSecOpenSSLNodeSetBNValue</a> <span class="c_punctuation"><span class="PHRASE">()</span></span>
</td>
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</table>
<p></p>
</div>
</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.FUNCTIONS_DETAILS"></a><h2>Functions</h2>
<div class="REFSECT2">
<a name="XMLSECOPENSSLNODEGETBNVALUE"></a><h3>xmlSecOpenSSLNodeGetBNValue ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">BIGNUM</span></font> *
xmlSecOpenSSLNodeGetBNValue (<code class="PARAMETER">const <font><span class="TYPE">xmlNodePtr</span></font> cur</code>,
<code class="PARAMETER"><font><span class="TYPE">BIGNUM</span></font> **a</code>);</pre>
<p>Converts the node content from CryptoBinary format
(http://www.w3.org/TR/xmldsig-core/<font><span class="TYPE">sec-CryptoBinary</span></font>)
to a BIGNUM. If no BIGNUM buffer provided then a new
BIGNUM is created (caller is responsible for freeing it).</p>
<div class="REFSECT3">
<a name="AEN30122"></a><h4>Parameters</h4>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN30124"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<col>
<tbody>
<tr>
<td><p>cur</p></td>
<td><p>the poitner to an XML node.</p></td>
<td> </td>
</tr>
<tr>
<td><p>a</p></td>
<td><p>the BIGNUM buffer.</p></td>
<td> </td>
</tr>
</tbody>
</table>
<p></p>
</div>
</div>
<div class="REFSECT3">
<a name="AEN30139"></a><h4>Returns</h4>
<p> a pointer to BIGNUM produced from CryptoBinary string
or NULL if an error occurs.</p>
</div>
</div>
<hr>
<div class="REFSECT2">
<a name="XMLSECOPENSSLNODESETBNVALUE"></a><h3>xmlSecOpenSSLNodeSetBNValue ()</h3>
<pre class="PROGRAMLISTING"><font><span class="RETURNVALUE">int</span></font>
xmlSecOpenSSLNodeSetBNValue (<code class="PARAMETER"><font><span class="TYPE">xmlNodePtr</span></font> cur</code>,
<code class="PARAMETER">const <font><span class="TYPE">BIGNUM</span></font> *a</code>,
<code class="PARAMETER"><font><span class="TYPE">int</span></font> addLineBreaks</code>);</pre>
<p>Converts BIGNUM to CryptoBinary string
(http://www.w3.org/TR/xmldsig-core/<font><span class="TYPE">sec-CryptoBinary</span></font>)
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>
<div class="REFSECT3">
<a name="AEN30161"></a><h4>Parameters</h4>
<div class="INFORMALTABLE">
<p></p>
<a name="AEN30163"></a><table border="0" frame="void" width="100%" class="CALSTABLE">
<col>
<col>
<col>
<tbody>
<tr>
<td><p>cur</p></td>
<td><p>the pointer to an XML node.</p></td>
<td> </td>
</tr>
<tr>
<td><p>a</p></td>
<td><p>the BIGNUM.</p></td>
<td> </td>
</tr>
<tr>
<td><p>addLineBreaks</p></td>
<td><p>if the flag is equal to 1 then
linebreaks will be added before and after
new buffer content.</p></td>
<td> </td>
</tr>
</tbody>
</table>
<p></p>
</div>
</div>
<div class="REFSECT3">
<a name="AEN30184"></a><h4>Returns</h4>
<p> 0 on success or -1 otherwise.</p>
</div>
</div>
</div>
<div class="REFSECT1">
<a name="XMLSEC-OPENSSL-BN.OTHER_DETAILS"></a><h2>Types and Values</h2>
<p></p>
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