<div class="content" name="MQUSERSIGNCERT" uuid="c4c40ea9-150a-4939-8a49-5aab6cf6dd88"><p>The MQUSERSIGNCERT structure defines one public key
certificate stored in the user&#39;s signing certificate list (<a href="cc7a81a6-1c77-4943-b2b0-e74e2b9c466e" data-linktype="relative-path">MQUSERSIGNCERTS (section 2.2.21)</a>).</p><table>
 <tbody><tr>
  <th><p><br/>0</p></th>
  <th><p><br/>1</p></th>
  <th><p><br/>2</p></th>
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  <th><p>1<br/>0</p></th>
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  <th><p>2<br/>0</p></th>
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  <th><p>3<br/>0</p></th>
  <th><p><br/>1</p></th>
 </tr>
 <tr>
  <td colspan="32">Digest (16 bytes)</td>
 </tr>
 <tr>
  <td colspan="32">...</td>
 </tr>
 <tr>
  <td colspan="32">...</td>
 </tr>
 <tr>
  <td colspan="32">Identifier (16 bytes)</td>
 </tr>
 <tr>
  <td colspan="32">...</td>
 </tr>
 <tr>
  <td colspan="32">...</td>
 </tr>
 <tr>
  <td colspan="32">CertificateLength</td>
 </tr>
 <tr>
  <td colspan="32">Certificate (variable)</td>
 </tr>
 <tr>
  <td colspan="32">...</td>
 </tr>
</tbody></table><p><b>Digest (16 bytes): </b>A 16-byte value that is
computed as the MD5 hash of the user&#39;s X.509 certificate contained in the <b>Certificate</b>
field, as defined in <a href="https://go.microsoft.com/fwlink/?LinkId=90275" data-linktype="external">[RFC1321]</a>.</p><p><b>Identifier (16 bytes): </b>A <b>GUID</b>, as
specified in <a href="../ms-dtyp/cca27429-5689-4a16-b2b4-9325d93e4ba2" data-linktype="relative-path">[MS-DTYP]</a>
section <a href="../ms-dtyp/4926e530-816e-41c2-b251-ec5c7aca018a" data-linktype="relative-path">2.3.4</a>,
that identifies the certificate contained in the <b>Certificate</b> field. It
is generated by the entity that registers the certificate.</p><p><b>CertificateLength (4 bytes): </b>A 32-bit unsigned
integer that contains the size, in bytes, of the <b>Certificate</b> field.</p><p><b>Certificate (variable): </b>A variable length
array of bytes that contains an X.509-encoded certificate as defined in <a href="https://go.microsoft.com/fwlink/?LinkId=90414" data-linktype="external">[RFC3280]</a>.</p></div>