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  <div class="section" id="krb5-auth-con-set-checksum-func-set-a-checksum-callback-in-an-auth-context">
<h1>krb5_auth_con_set_checksum_func -  Set a checksum callback in an auth context.<a class="headerlink" href="#krb5-auth-con-set-checksum-func-set-a-checksum-callback-in-an-auth-context" title="Permalink to this headline"></a></h1>
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<dt id="c.krb5_auth_con_set_checksum_func">
<a class="reference internal" href="../types/krb5_error_code.html#c.krb5_error_code" title="krb5_error_code">krb5_error_code</a> <tt class="descname">krb5_auth_con_set_checksum_func</tt><big>(</big><a class="reference internal" href="../types/krb5_context.html#c.krb5_context" title="krb5_context">krb5_context</a><em>&nbsp;context</em>, <a class="reference internal" href="../types/krb5_auth_context.html#c.krb5_auth_context" title="krb5_auth_context">krb5_auth_context</a><em>&nbsp;auth_context</em>, <a class="reference internal" href="../types/krb5_mk_req_checksum_func.html#c.krb5_mk_req_checksum_func" title="krb5_mk_req_checksum_func">krb5_mk_req_checksum_func</a><em>&nbsp;func</em>, void *<em>&nbsp;data</em><big>)</big><a class="headerlink" href="#c.krb5_auth_con_set_checksum_func" title="Permalink to this definition"></a></dt>
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<tr class="field-odd field"><th class="field-name">param:</th><td class="field-body"><p class="first"><strong>[in]</strong> <strong>context</strong> - Library context</p>
<p><strong>[in]</strong> <strong>auth_context</strong> - Authentication context</p>
<p><strong>[in]</strong> <strong>func</strong> - Checksum callback</p>
<p class="last"><strong>[in]</strong> <strong>data</strong> - Callback argument</p>
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<li>0   (always)</li>
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<p>Set a callback to obtain checksum data in <a class="reference internal" href="krb5_mk_req.html#c.krb5_mk_req" title="krb5_mk_req"><tt class="xref c c-func docutils literal"><span class="pre">krb5_mk_req()</span></tt></a> . The callback will be invoked after the subkey and local sequence number are stored in <em>auth_context</em> .</p>
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