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<title>Intel&reg; Enhanced Privacy ID SDK: Sample Issuer Material</title>
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                            href="index.html">Intel&reg; Enhanced Privacy ID SDK</a>
&#160;<span id="projectnumber">2.0.0</span>
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<div class="title">Sample Issuer Material </div>  </div>
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<div class="toc"><h3>Table of Contents</h3>
<ul><li class="level1"><a href="#IssuerMaterial_Groups">Sample Groups</a><ul><li class="level2"><a href="#IssuerMaterial_Groups_groupa">groupa</a></li>
<li class="level2"><a href="#IssuerMaterial_Groups_groupb">groupb</a></li>
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</li>
<li class="level1"><a href="#IssuerMaterial_GroupRls">Group Based Revocation Lists</a></li>
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<div class="textblock"><p>Because the SDK does not include issuer APIs, pre-generated sample data is included for validation purposes.</p>
<dl class="section note"><dt>Note</dt><dd>Sample compressed key material is not included in the package.</dd></dl>
<h1><a class="anchor" id="IssuerMaterial_Groups"></a>
Sample Groups</h1>
<p>Issuers create groups and manage group membership. For each group, the issuer creates a group public key simultaneously with the corresponding issuing private key. The issuer uses the issuing private key to create unique member private keys for each group member, and makes the group public key available to verifiers.</p>
<p>All groups have the following:</p>
<ul>
<li>Group public key, which corresponds to the issuing private key kept by the issuer</li>
<li>Signature based revocation list</li>
<li>Private key based revocation list</li>
<li>Member private keys, generated from the issuing private key</li>
</ul>
<p>If a signature based revocation list or private key based revocation list does not exist, it is assumed to be empty.</p>
<h2><a class="anchor" id="IssuerMaterial_Groups_groupa"></a>
groupa</h2>
<p>There are eight members in <b>groupa</b>:</p>
<ul>
<li><b>groupa/member0</b> - A non-revoked member.</li>
<li><b>groupa/member1</b> - Another non-revoked member.</li>
<li><b>groupa/privrevokedmember0</b> - A revoked member. Revoked by Private-Key based revocation list (<code>groupa/privrl.bin</code>)</li>
<li><b>groupa/privrevokedmember1</b> - A revoked member. Revoked by Private-Key based revocation list (<code>groupa/privrl.bin</code>)</li>
<li><b>groupa/privrevokedmember2</b> - A revoked member. Revoked by Private-Key based revocation list (<code>groupa/privrl.bin</code>)</li>
<li><b>groupa/sigrevokedmember0</b> - A revoked member. Revoked by Signature based revocation list (<code>groupa/sigrl.bin</code>)</li>
<li><b>groupa/sigrevokedmember1</b> - A revoked member. Revoked by Signature based revocation list (<code>groupa/sigrl.bin</code>)</li>
<li><b>groupa/sigrevokedmember2</b> - A revoked member. Revoked by Signature based revocation list (<code>groupa/sigrl.bin</code>)</li>
</ul>
<p>The following are <b>groupa</b> revocation lists:</p>
<ul>
<li><code>groupa/privrl.bin</code> - Private-Key based revocation list. <b>privrevokedmember0</b>, <b>privrevokedmember1</b> and privrevokedmember2** revoked.</li>
<li><code>groupa/sigrl.bin</code> - Signature based revocation list. <b>sigrevokedmember0</b>, <b>sigrevokedmember0</b> and sigrevokedmember0** revoked.</li>
</ul>
<h2><a class="anchor" id="IssuerMaterial_Groups_groupb"></a>
groupb</h2>
<p>There are four members in <b>groupb</b>:</p>
<ul>
<li><b>groupb/member0</b> - A non-revoked member.</li>
<li><b>groupb/member1</b> - Another non-revoked member.</li>
<li><b>groupb/privrevokedmember0</b> - A revoked member. Revoked by Private-Key based revocation list (<code>groupb/privrl.bin</code>)</li>
<li><b>groupb/sigrevokedmember0</b> - A revoked member. Revoked by Signature based revocation list (<code>groupb/sigrl.bin</code>)</li>
</ul>
<p>The following are <b>groupb</b> revocation lists:</p>
<ul>
<li><code>groupb/privrl.bin</code> - Private-Key based revocation list. <b>privrevokedmember0</b> revoked.</li>
<li><code>groupb/sigrl.bin</code> - Signature based revocation list. <b>sigrevokedmember0</b> revoked.</li>
</ul>
<h1><a class="anchor" id="IssuerMaterial_GroupRls"></a>
Group Based Revocation Lists</h1>
<p>If an entire group is no longer valid, the issuer can revoke it using the group based revocation list. Two sample group based revocation lists are provided with the SDK.</p>
<ul>
<li><code>grprl_empty.bin</code> - No entries</li>
<li><code>grprl.bin</code> - One entry in which <b>groupb</b> is revoked. </li>
</ul>
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