class_d_l___group_parameters___e_c.html

著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="8fa1181ce7cf91f12ba6de286d1da5bd"></a><!-- doxytag: member="DL_GroupParameters_EC::AssignFrom" ref="8fa1181ce7cf91f12ba6de286d1da5bd" args="(const NameValuePairs &amp;source)" -->
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template&lt;class EC&gt; </div>
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          <td class="memname">void <a class="el" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC</a>&lt; EC &gt;::AssignFrom           </td>
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          <td class="paramtype">const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>source</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [inline, virtual]</code></td>
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assign values from source to this object 
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<dl class="note" compact><dt><b>Note:</b></dt><dd>This function can be used to create a public key from a private key. </dd></dl>

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Implements <a class="el" href="class_crypto_material.html#20181c1b39a74a9fe91385b025b773c6">CryptoMaterial</a>.
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Definition at line <a class="el" href="eccrypto_8cpp-source.html#l00414">414</a> of file <a class="el" href="eccrypto_8cpp-source.html">eccrypto.cpp</a>.
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References <a class="el" href="argnames_8h-source.html#l00032">Name::Cofactor()</a>, <a class="el" href="argnames_8h-source.html#l00034">Name::Curve()</a>, <a class="el" href="cryptlib_8h-source.html#l00292">NameValuePairs::GetRequiredParameter()</a>, <a class="el" href="cryptlib_8h-source.html#l00260">NameValuePairs::GetValue()</a>, <a class="el" href="cryptlib_8h-source.html#l00267">NameValuePairs::GetValueWithDefault()</a>, <a class="el" href="argnames_8h-source.html#l00035">Name::GroupOID()</a>, <a class="el" href="eccrypto_8h-source.html#l00043">DL_GroupParameters_EC&lt; EC &gt;::Initialize()</a>, <a class="el" href="argnames_8h-source.html#l00033">Name::SubgroupGenerator()</a>, <a class="el" href="argnames_8h-source.html#l00031">Name::SubgroupOrder()</a>, and <a class="el" href="integer_8cpp-source.html#l02862">Integer::Zero()</a>.
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Referenced by <a class="el" href="eccrypto_8cpp-source.html#l00435">DL_GroupParameters_EC&lt; EC &gt;::GenerateRandom()</a>.
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<a class="anchor" name="519a33d073fe5bf2f278a0de75a404ab"></a><!-- doxytag: member="DL_GroupParameters_EC::GenerateRandom" ref="519a33d073fe5bf2f278a0de75a404ab" args="(RandomNumberGenerator &amp;rng, const NameValuePairs &amp;alg)" -->
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          <td class="memname">void <a class="el" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC</a>&lt; EC &gt;::GenerateRandom           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>rng</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>alg</em></td><td>&nbsp;</td>
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          <td></td><td></td><td width="100%"><code> [inline, virtual]</code></td>
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this implementation doesn't actually generate a curve, it just initializes the parameters with existing values 
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parameters: (Curve, SubgroupGenerator, SubgroupOrder, Cofactor (optional)), or (GroupOID) 
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Reimplemented from <a class="el" href="class_generatable_crypto_material.html#be368b52db1ca7079b690f2d6e605f7a">GeneratableCryptoMaterial</a>.
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Definition at line <a class="el" href="eccrypto_8cpp-source.html#l00435">435</a> of file <a class="el" href="eccrypto_8cpp-source.html">eccrypto.cpp</a>.
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References <a class="el" href="eccrypto_8cpp-source.html#l00414">DL_GroupParameters_EC&lt; EC &gt;::AssignFrom()</a>.
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<a class="anchor" name="1f25ebabec85af46cf34e2239f9612e3"></a><!-- doxytag: member="DL_GroupParameters_EC::Validate" ref="1f25ebabec85af46cf34e2239f9612e3" args="(RandomNumberGenerator &amp;rng, unsigned int level) const" -->
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          <td class="memname">bool <a class="el" href="class_d_l___group_parameters.html">DL_GroupParameters</a>&lt; typenameEcPrecomputation&lt; EC &gt;::<a class="el" href="class_d_l___group_parameters___e_c.html#c191800038b554ba526b3f99062f06fc">Element</a>  &gt;::Validate           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>rng</em>, </td>
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          <td class="paramtype">unsigned int&nbsp;</td>
          <td class="paramname"> <em>level</em></td><td>&nbsp;</td>
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          <td>)</td>
          <td></td><td></td><td width="100%"> const<code> [inline, virtual, inherited]</code></td>
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check this object for errors 
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<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>level</em>&nbsp;</td><td>denotes the level of thoroughness: 0 - using this object won't cause a crash or exception (rng is ignored) 1 - this object will probably function (encrypt, sign, etc.) correctly (but may not check for weak keys and such) 2 - make sure this object will function correctly, and do reasonable security checks 3 - do checks that may take a long time </td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>true if the tests pass </dd></dl>