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<div class="title">EPID 1.1 specific pairing<div class="ingroups"><a class="el" href="group___epid_module.html">epid</a> &raquo; <a class="el" href="group___epid_common.html">common</a> &raquo; <a class="el" href="group___epid_math.html">math</a> &raquo; <a class="el" href="group___pairing_primitives.html">pairing</a></div></div>  </div>
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<p>EPID 1.1 pairing operations.  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ga74236e8ebbfc30a7daa7fa1cf1df148b"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga74236e8ebbfc30a7daa7fa1cf1df148b"></a>
typedef struct <a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a></td></tr>
<tr class="memdesc:ga74236e8ebbfc30a7daa7fa1cf1df148b"><td class="mdescLeft">&#160;</td><td class="mdescRight">A pairing. <br /></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ga0ee658e26e9f933ba2ffbf2504dfae7e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___epid11_pairing_primitives.html#ga0ee658e26e9f933ba2ffbf2504dfae7e">NewEpid11PairingState</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> const *ga, <a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> const *gb, <a class="el" href="group___finite_field_primitives.html#gab281b24e336a8b3d7d90079d862d969e">FiniteField</a> const *ff, <a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a> **ps)</td></tr>
<tr class="memdesc:ga0ee658e26e9f933ba2ffbf2504dfae7e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructs a new Tate pairing state.  <a href="#ga0ee658e26e9f933ba2ffbf2504dfae7e">More...</a><br /></td></tr>
<tr class="separator:ga0ee658e26e9f933ba2ffbf2504dfae7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa3457d6f85889bc714910252fd21c758"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___epid11_pairing_primitives.html#gaa3457d6f85889bc714910252fd21c758">DeleteEpid11PairingState</a> (<a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a> **ps)</td></tr>
<tr class="memdesc:gaa3457d6f85889bc714910252fd21c758"><td class="mdescLeft">&#160;</td><td class="mdescRight">Frees a previously allocated by Epid11PairingState.  <a href="#gaa3457d6f85889bc714910252fd21c758">More...</a><br /></td></tr>
<tr class="separator:gaa3457d6f85889bc714910252fd21c758"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa4076dfe25e8e61ac6753333a322c059"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___epid11_pairing_primitives.html#gaa4076dfe25e8e61ac6753333a322c059">Epid11Pairing</a> (<a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a> *ps, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *a, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *b, <a class="el" href="group___finite_field_primitives.html#ga6cff5c7c06b07a87442b810ccc0a86fa">FfElement</a> *d)</td></tr>
<tr class="memdesc:gaa4076dfe25e8e61ac6753333a322c059"><td class="mdescLeft">&#160;</td><td class="mdescRight">Computes a Tate Pairing for two parameters.  <a href="#gaa4076dfe25e8e61ac6753333a322c059">More...</a><br /></td></tr>
<tr class="separator:gaa4076dfe25e8e61ac6753333a322c059"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>EPID 1.1 pairing operations. </p>
<p>Provides APIs for defining and using a pairing relationship between two Elliptic curve groups.</p>
<p>These pairing operations are intended to support Intel(R) EPID 1.1 verification.</p>
<dl class="section see"><dt>See also</dt><dd><a href="group___epid11_verifier_module.html#details"><b>EPID 1.1 support</b></a> </dd></dl>
<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname">void DeleteEpid11PairingState </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a> **&#160;</td>
          <td class="paramname"><em>ps</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Frees a previously allocated by Epid11PairingState. </p>
<p>Frees memory pointed to by pairing state. Nulls the pointer.</p>
<p>This pairing operation is intended to support Intel(R) EPID 1.1 verification.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">ps</td><td>The pairing state. Can be NULL.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___epid11_pairing_primitives.html#ga0ee658e26e9f933ba2ffbf2504dfae7e" title="Constructs a new Tate pairing state. ">NewEpid11PairingState</a> </dd>
<dd>
<a href="group___epid11_verifier_module.html#details"><b>EPID 1.1 support</b></a> </dd></dl>

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          <td class="memname"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> Epid11Pairing </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a> *&#160;</td>
          <td class="paramname"><em>ps</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *&#160;</td>
          <td class="paramname"><em>a</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *&#160;</td>
          <td class="paramname"><em>b</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group___finite_field_primitives.html#ga6cff5c7c06b07a87442b810ccc0a86fa">FfElement</a> *&#160;</td>
          <td class="paramname"><em>d</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Computes a Tate Pairing for two parameters. </p>
<p>This pairing operation is intended to support Intel(R) EPID 1.1 verification. It frees memory pointed to by an Intel(R) EPID 1.1 pairing state.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">ps</td><td>The pairing state. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>The first value to pair. Must be in ga. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>The second value to pair. Must be in gb. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">d</td><td>The result of the pairing. Must be in ff.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360" title="Return status for SDK functions. ">EpidStatus</a></dd></dl>
<dl class="section see"><dt>See also</dt><dd><a href="group___epid11_verifier_module.html#details"><b>EPID 1.1 support</b></a> </dd></dl>

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          <td class="memname"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> NewEpid11PairingState </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> const *&#160;</td>
          <td class="paramname"><em>ga</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> const *&#160;</td>
          <td class="paramname"><em>gb</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group___finite_field_primitives.html#gab281b24e336a8b3d7d90079d862d969e">FiniteField</a> const *&#160;</td>
          <td class="paramname"><em>ff</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group___epid11_pairing_primitives.html#ga74236e8ebbfc30a7daa7fa1cf1df148b">Epid11PairingState</a> **&#160;</td>
          <td class="paramname"><em>ps</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Constructs a new Tate pairing state. </p>
<p>Allocates memory and creates a new pairing state for Tate pairing.</p>
<p>Use <a class="el" href="group___epid11_pairing_primitives.html#gaa3457d6f85889bc714910252fd21c758" title="Frees a previously allocated by Epid11PairingState. ">DeleteEpid11PairingState()</a> to free memory.</p>
<p>This pairing operation is intended to support Intel(R) EPID 1.1 verification.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">ga</td><td>The EcGroup from which the first parameter of the pairing will be taken. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">gb</td><td>The EcGroup from which the second parameter of the pairing will be taken. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">ff</td><td>The result finite field. Must be a Fq12 field. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">ps</td><td>Newly constructed pairing state.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360" title="Return status for SDK functions. ">EpidStatus</a></dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___epid11_pairing_primitives.html#gaa3457d6f85889bc714910252fd21c758" title="Frees a previously allocated by Epid11PairingState. ">DeleteEpid11PairingState</a> </dd>
<dd>
<a href="group___epid11_verifier_module.html#details"><b>EPID 1.1 support</b></a> </dd></dl>

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