class_e_s_i_g_n_function.html

Crypto++是一个非常强大的密码学库,主要是功能全

<tr><td colspan=2><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a name="_invertible_e_s_i_g_n_functionb0" doxytag="ESIGNFunction::GetK"></a>
unsigned int&nbsp;</td><td class="memItemRight" valign=bottom><b>GetK</b> () const</td></tr>

<tr><td colspan=2><br><h2>Protected Attributes</h2></td></tr>
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<a class="el" href="class_integer.html">Integer</a>&nbsp;</td><td class="memItemRight" valign=bottom><b>m_n</b></td></tr>

<tr><td class="memItemLeft" nowrap align=right valign=top><a name="_invertible_e_s_i_g_n_functionp3" doxytag="ESIGNFunction::m_e"></a>
<a class="el" href="class_integer.html">Integer</a>&nbsp;</td><td class="memItemRight" valign=bottom><b>m_e</b></td></tr>

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<hr><h2>Member Function Documentation</h2>
<a name="_e_s_i_g_n_functiona3" doxytag="ESIGNFunction::Validate"></a><p>
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          <td class="md" nowrap valign="top"> bool ESIGNFunction::Validate </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap> <em>rng</em>, </td>
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          <td></td>
          <td class="md" nowrap>unsigned int&nbsp;</td>
          <td class="mdname" nowrap> <em>level</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"> const<code> [virtual]</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><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 compact><dt><b>Returns:</b></dt><dd>true if the tests pass </dd></dl>

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Implements <a class="el" href="class_crypto_material.html#_x509_public_keya12">CryptoMaterial</a>.
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Reimplemented in <a class="el" href="class_invertible_e_s_i_g_n_function.html#_invertible_e_s_i_g_n_functiona5">InvertibleESIGNFunction</a>.
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Definition at line <a class="el" href="esign_8cpp-source.html#l00049">49</a> of file <a class="el" href="esign_8cpp-source.html">esign.cpp</a>.
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References <a class="el" href="integer_8h-source.html#l00231">Integer::IsOdd()</a>, and <a class="el" href="integer_8cpp-source.html#l02616">Integer::One()</a>.
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Referenced by <a class="el" href="esign_8cpp-source.html#l00181">InvertibleESIGNFunction::Validate()</a>.    </td>
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<a name="_e_s_i_g_n_functiona5" doxytag="ESIGNFunction::AssignFrom"></a><p>
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          <td class="md" nowrap valign="top"> void ESIGNFunction::AssignFrom </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>source</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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assign values from source to this object 
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<dl 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#_x509_public_keya11">CryptoMaterial</a>.
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Reimplemented in <a class="el" href="class_invertible_e_s_i_g_n_function.html#_invertible_e_s_i_g_n_functiona7">InvertibleESIGNFunction</a>.
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Definition at line <a class="el" href="esign_8cpp-source.html#l00065">65</a> of file <a class="el" href="esign_8cpp-source.html">esign.cpp</a>.
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References <a class="el" href="argnames_8h-source.html#l00027">Name::Modulus()</a>, and <a class="el" href="argnames_8h-source.html#l00028">Name::PublicExponent()</a>.    </td>
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<a name="_x_t_r___d_ha31" doxytag="ESIGNFunction::Load"></a><p>
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          <td class="md" nowrap valign="top"> virtual void CryptoMaterial::Load </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>bt</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline, virtual, inherited]</code></td>
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load key from a <a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> 
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<dl compact><dt><b>Exceptions:</b></dt><dd>
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    <tr><td valign=top><em>KeyingErr</em>&nbsp;</td><td>if decode fails </td></tr>
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<dl compact><dt><b>Note:</b></dt><dd>Generally does not check that the key is valid. Call ValidateKey() or ThrowIfInvalidKey() to check that. </dd></dl>

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Reimplemented in <a class="el" href="class_a_s_n1_crypto_material.html#_x509_public_keya9">ASN1CryptoMaterial</a>.
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Definition at line <a class="el" href="cryptlib_8h-source.html#l00986">986</a> of file <a class="el" href="cryptlib_8h-source.html">cryptlib.h</a>.
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Referenced by <a class="el" href="cryptlib_8h-source.html#l01052">AsymmetricAlgorithm::BERDecode()</a>.    </td>
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<a name="_x_t_r___d_ha33" doxytag="ESIGNFunction::Precompute"></a><p>
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          <td class="md" nowrap valign="top"> virtual void CryptoMaterial::Precompute </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">unsigned int&nbsp;</td>