ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/krb5_generate_subkey.htm

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<title>krb5_generate_subkey()--Generate Subsession Key</title>
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<h2>krb5_generate_subkey()--Generate Subsession Key</h2>
<div class="box" style="width: 60%;">
<br>
&nbsp;&nbsp;Syntax
<pre>
#include &lt;krb5.h&gt;
krb5_error_code krb5_generate_subkey(
krb5_context <em>context</em>,
krb5_const krb5_keyblock * <em>key</em>,
krb5_keyblock ** <em>subkey</em>);
</pre>
&nbsp;&nbsp;Service Program Name: QSYS/QKRBGSS<br>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: Yes<br>
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<p>The <strong>krb5_generate_subkey()</strong> function generates a random
subsession key that is based on the supplied session key.</p>
<br>
<h3>Authorities</h3>
<p>No authorities are required.</p>
<br>
<h3>Parameters</h3>
<dl>
<dt><strong>context</strong>&nbsp;&nbsp;(Input)</dt>
<dd>The Kerberos context.<br>
<br>
</dd>
<dt><strong>key</strong>&nbsp;&nbsp;(Input)</dt>
<dd>The session key.<br>
<br>
</dd>
<dt><strong>subkey</strong>&nbsp;&nbsp;(Output)</dt>
<dd>The generated subsession key. The <strong>krb5_free_keyblock()</strong>
routine should be called to release the key when it is no longer needed.</dd>
</dl>
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<h3>Return Value</h3>
<p>If no errors occur, the return value is 0. Otherwise, a Kerberos error code
is returned.</p>
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<h3>Error Messages</h3>
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<th align="left" valign="top">Message ID</th>
<th align="left" valign="top">Error Message Text</th>
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<td width="15%" valign="top">CPE3418 E</td>
<td width="85%" valign="top">Possible APAR condition or hardware failure.</td>
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API introduced: V5R1
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