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<title>Crypto++: DL_PublicKey< T > Class Template Reference</title>
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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
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<a href="#pub-types">Public Types</a> |
<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">DL_PublicKey< T > Class Template Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div>
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<p>Interface for Discrete Log (DL) public keys.
<a href="class_d_l___public_key.html#details">More...</a></p>
<div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;">
<img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for DL_PublicKey< T >:</div>
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<img src="class_d_l___public_key.png" usemap="#DL_5FPublicKey_3C_20T_20_3E_map" alt=""/>
<map id="DL_5FPublicKey_3C_20T_20_3E_map" name="DL_5FPublicKey_3C_20T_20_3E_map">
<area href="class_d_l___key.html" title="Base class for a Discrete Log (DL) key. " alt="DL_Key< T >" shape="rect" coords="0,0,123,24"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a26c192a54ad555f24082894c5f271ebf"><td class="memItemLeft" align="right" valign="top"><a id="a26c192a54ad555f24082894c5f271ebf"></a>
typedef T </td><td class="memItemRight" valign="bottom"><b>Element</b></td></tr>
<tr class="separator:a26c192a54ad555f24082894c5f271ebf"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ac2ecb1de28d09a66c7a000e6f9417930"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#ac2ecb1de28d09a66c7a000e6f9417930">GetVoidValue</a> (const char *name, const std::type_info &valueType, void *pValue) const</td></tr>
<tr class="memdesc:ac2ecb1de28d09a66c7a000e6f9417930"><td class="mdescLeft"> </td><td class="mdescRight">Get a named value. <a href="#ac2ecb1de28d09a66c7a000e6f9417930">More...</a><br /></td></tr>
<tr class="separator:ac2ecb1de28d09a66c7a000e6f9417930"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7adbe2e3adc4bdb8a60ffd653d91532e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#a7adbe2e3adc4bdb8a60ffd653d91532e">AssignFrom</a> (const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &source)</td></tr>
<tr class="memdesc:a7adbe2e3adc4bdb8a60ffd653d91532e"><td class="mdescLeft"> </td><td class="mdescRight">Initialize or reinitialize this this key. <a href="#a7adbe2e3adc4bdb8a60ffd653d91532e">More...</a><br /></td></tr>
<tr class="separator:a7adbe2e3adc4bdb8a60ffd653d91532e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab748086e14a92416ff49183f81f777c4"><td class="memItemLeft" align="right" valign="top">virtual const Element & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#ab748086e14a92416ff49183f81f777c4">GetPublicElement</a> () const</td></tr>
<tr class="memdesc:ab748086e14a92416ff49183f81f777c4"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the public element. <a href="#ab748086e14a92416ff49183f81f777c4">More...</a><br /></td></tr>
<tr class="separator:ab748086e14a92416ff49183f81f777c4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a86cac45fc0ddaf07c057061b93cd8ce1"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#a86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a> (const Element &y)</td></tr>
<tr class="memdesc:a86cac45fc0ddaf07c057061b93cd8ce1"><td class="mdescLeft"> </td><td class="mdescRight">Sets the public element. <a href="#a86cac45fc0ddaf07c057061b93cd8ce1">More...</a><br /></td></tr>
<tr class="separator:a86cac45fc0ddaf07c057061b93cd8ce1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a276f2ab6a25f60c48a6296bcd742647f"><td class="memItemLeft" align="right" valign="top">virtual Element </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#a276f2ab6a25f60c48a6296bcd742647f">ExponentiatePublicElement</a> (const <a class="el" href="class_integer.html">Integer</a> &exponent) const</td></tr>
<tr class="memdesc:a276f2ab6a25f60c48a6296bcd742647f"><td class="mdescLeft"> </td><td class="mdescRight">Exponentiates this element. <a href="#a276f2ab6a25f60c48a6296bcd742647f">More...</a><br /></td></tr>
<tr class="separator:a276f2ab6a25f60c48a6296bcd742647f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac9f9cdb455c4a859e50d202f67008cb8"><td class="memItemLeft" align="right" valign="top">virtual Element </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#ac9f9cdb455c4a859e50d202f67008cb8">CascadeExponentiateBaseAndPublicElement</a> (const <a class="el" href="class_integer.html">Integer</a> &baseExp, const <a class="el" href="class_integer.html">Integer</a> &publicExp) const</td></tr>
<tr class="memdesc:ac9f9cdb455c4a859e50d202f67008cb8"><td class="mdescLeft"> </td><td class="mdescRight">Exponentiates an element. <a href="#ac9f9cdb455c4a859e50d202f67008cb8">More...</a><br /></td></tr>
<tr class="separator:ac9f9cdb455c4a859e50d202f67008cb8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a14a74e0fd35ec6441424fb09e5ba4512"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a>< T > & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#a14a74e0fd35ec6441424fb09e5ba4512">GetPublicPrecomputation</a> () const =0</td></tr>
<tr class="memdesc:a14a74e0fd35ec6441424fb09e5ba4512"><td class="mdescLeft"> </td><td class="mdescRight">Accesses the public precomputation. <a href="#a14a74e0fd35ec6441424fb09e5ba4512">More...</a><br /></td></tr>
<tr class="separator:a14a74e0fd35ec6441424fb09e5ba4512"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaf42f2ffabd071995559be72eb7ae845"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a>< T > & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html#aaf42f2ffabd071995559be72eb7ae845">AccessPublicPrecomputation</a> ()=0</td></tr>
<tr class="memdesc:aaf42f2ffabd071995559be72eb7ae845"><td class="mdescLeft"> </td><td class="mdescRight">Accesses the public precomputation. <a href="#aaf42f2ffabd071995559be72eb7ae845">More...</a><br /></td></tr>
<tr class="separator:aaf42f2ffabd071995559be72eb7ae845"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_d_l___key"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_d_l___key')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_d_l___key.html">DL_Key< T ></a></td></tr>
<tr class="memitem:a85e3d4eddb546c05acdca33a9939755e inherit pub_methods_class_d_l___key"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="class_d_l___group_parameters.html">DL_GroupParameters</a>< T > & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___key.html#a85e3d4eddb546c05acdca33a9939755e">GetAbstractGroupParameters</a> () const =0</td></tr>
<tr class="memdesc:a85e3d4eddb546c05acdca33a9939755e inherit pub_methods_class_d_l___key"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves abstract group parameters. <a href="class_d_l___key.html#a85e3d4eddb546c05acdca33a9939755e">More...</a><br /></td></tr>
<tr class="separator:a85e3d4eddb546c05acdca33a9939755e inherit pub_methods_class_d_l___key"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaffcc772fd8fe1d37fae92ed77c54829 inherit pub_methods_class_d_l___key"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_d_l___group_parameters.html">DL_GroupParameters</a>< T > & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___key.html#aaffcc772fd8fe1d37fae92ed77c54829">AccessAbstractGroupParameters</a> ()=0</td></tr>
<tr class="memdesc:aaffcc772fd8fe1d37fae92ed77c54829 inherit pub_methods_class_d_l___key"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves abstract group parameters. <a href="class_d_l___key.html#aaffcc772fd8fe1d37fae92ed77c54829">More...</a><br /></td></tr>
<tr class="separator:aaffcc772fd8fe1d37fae92ed77c54829 inherit pub_methods_class_d_l___key"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template<class T><br />
class DL_PublicKey< T ></h3>
<p>Interface for Discrete Log (DL) public keys. </p>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l01028">1028</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="ac2ecb1de28d09a66c7a000e6f9417930"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac2ecb1de28d09a66c7a000e6f9417930">◆ </a></span>GetVoidValue()</h2>
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<td class="memname">bool <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::GetVoidValue </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::type_info & </td>
<td class="paramname"><em>valueType</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>pValue</em> </td>
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<td></td>
<td>)</td>
<td></td><td> const</td>
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<p>Get a named value. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">name</td><td>the name of the object or value to retrieve </td></tr>
<tr><td class="paramname">valueType</td><td>reference to a variable that receives the value </td></tr>
<tr><td class="paramname">pValue</td><td>void pointer to a variable that receives the value </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true if the value was retrieved, false otherwise</dd></dl>
<p><a class="el" href="class_d_l___public_key.html#ac2ecb1de28d09a66c7a000e6f9417930" title="Get a named value. ">GetVoidValue()</a> retrieves the value of name if it exists. </p><dl class="section note"><dt>Note</dt><dd><a class="el" href="class_d_l___public_key.html#ac2ecb1de28d09a66c7a000e6f9417930" title="Get a named value. ">GetVoidValue()</a> is an internal function and should be implemented by derived classes. Users should use one of the other functions instead. </dd></dl>
<dl class="section see"><dt>See also</dt><dd>GetValue(), GetValueWithDefault(), GetIntValue(), GetIntValueWithDefault(), GetRequiredParameter() and GetRequiredIntParameter() </dd></dl>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l01047">1047</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
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<a id="a7adbe2e3adc4bdb8a60ffd653d91532e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7adbe2e3adc4bdb8a60ffd653d91532e">◆ </a></span>AssignFrom()</h2>
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<td class="memname">void <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::AssignFrom </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> & </td>
<td class="paramname"><em>source</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Initialize or reinitialize this this key. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">source</td><td><a class="el" href="class_name_value_pairs.html" title="Interface for retrieving values given their names. ">NameValuePairs</a> to assign </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l01162">1162</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab748086e14a92416ff49183f81f777c4">◆ </a></span>GetPublicElement()</h2>
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<td class="memname">virtual const Element& <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::GetPublicElement </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">virtual</span></span> </td>
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<p>Retrieves the public element. </p>
<dl class="section return"><dt>Returns</dt><dd>the public element </dd></dl>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l01059">1059</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
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<a id="a86cac45fc0ddaf07c057061b93cd8ce1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a86cac45fc0ddaf07c057061b93cd8ce1">◆ </a></span>SetPublicElement()</h2>
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<td class="memname">virtual void <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::SetPublicElement </td>
<td>(</td>
<td class="paramtype">const Element & </td>
<td class="paramname"><em>y</em></td><td>)</td>
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<p>Sets the public element. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">y</td><td>the public element </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l01063">1063</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a276f2ab6a25f60c48a6296bcd742647f">◆ </a></span>ExponentiatePublicElement()</h2>
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<td class="memname">virtual Element <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::ExponentiatePublicElement </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_integer.html">Integer</a> & </td>
<td class="paramname"><em>exponent</em></td><td>)</td>
<td> const</td>
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<p>Exponentiates this element. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">exponent</td><td>the exponent to raise the base </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>the public element raised to the exponent </dd></dl>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l01068">1068</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac9f9cdb455c4a859e50d202f67008cb8">◆ </a></span>CascadeExponentiateBaseAndPublicElement()</h2>
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<td class="memname">virtual Element <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::CascadeExponentiateBaseAndPublicElement </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_integer.html">Integer</a> & </td>
<td class="paramname"><em>baseExp</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="class_integer.html">Integer</a> & </td>
<td class="paramname"><em>publicExp</em> </td>
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<td>)</td>
<td></td><td> const</td>
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<p>Exponentiates an element. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">baseExp</td><td>the first exponent </td></tr>
<tr><td class="paramname">publicExp</td><td>the second exponent </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the public element raised to the exponent</dd></dl>
<p>CascadeExponentiateBaseAndPublicElement raises the public element to the base element and precomputation. </p>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l01080">1080</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a14a74e0fd35ec6441424fb09e5ba4512">◆ </a></span>GetPublicPrecomputation()</h2>
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<td class="memname">virtual const <a class="el" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a><T>& <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::GetPublicPrecomputation </td>
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<p>Accesses the public precomputation. </p>
<p>GetPublicPrecomputation returns a const reference, while AccessPublicPrecomputation returns a non-const reference. Must be overridden in derived classes. </p>
<p>Implemented in <a class="el" href="class_d_l___public_key_impl.html#ac1eab8c6ae65408dcb80a3d451b5c45d">DL_PublicKeyImpl< GP ></a>, and <a class="el" href="class_d_l___public_key_impl.html#ac1eab8c6ae65408dcb80a3d451b5c45d">DL_PublicKeyImpl< DL_GroupParameters_EC< EC > ></a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aaf42f2ffabd071995559be72eb7ae845">◆ </a></span>AccessPublicPrecomputation()</h2>
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<td class="memname">virtual <a class="el" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a><T>& <a class="el" href="class_d_l___public_key.html">DL_PublicKey</a>< T >::AccessPublicPrecomputation </td>
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<p>Accesses the public precomputation. </p>
<p>GetPublicPrecomputation returns a const reference, while AccessPublicPrecomputation returns a non-const reference. Must be overridden in derived classes. </p>
<p>Implemented in <a class="el" href="class_d_l___public_key_impl.html#a43c88026bb625ad49dea861f807eb9c3">DL_PublicKeyImpl< GP ></a>, and <a class="el" href="class_d_l___public_key_impl.html#a43c88026bb625ad49dea861f807eb9c3">DL_PublicKeyImpl< DL_GroupParameters_EC< EC > ></a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="pubkey_8h_source.html">pubkey.h</a></li>
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