class_d_l___decryptor_base.html

著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

          <td class="paramtype">const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>parameters</em> = <code><a class="el" href="cryptlib_8h.html#d3205973dd1afa14090a683154c1109c">g_nullNameValuePairs</a></code></td><td>&nbsp;</td>
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          <td>)</td>
          <td></td><td></td><td width="100%"> const<code> [inline, virtual]</code></td>
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decrypt a byte string, and return the length of plaintext 
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<dl class="pre" compact><dt><b>Precondition:</b></dt><dd>size of plaintext == MaxPlaintextLength(ciphertextLength) bytes. </dd></dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>the actual length of the plaintext, indication that decryption failed. </dd></dl>

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Implements <a class="el" href="class_p_k___decryptor.html#b7466675ed050c440c16508f8a88cac1">PK_Decryptor</a>.
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Definition at line <a class="el" href="pubkey_8h-source.html#l01184">1184</a> of file <a class="el" href="pubkey_8h-source.html">pubkey.h</a>.
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<a class="anchor" name="3deffe3347f225eb0483c7bf3bedc495"></a><!-- doxytag: member="DL_DecryptorBase::MaxPlaintextLength" ref="3deffe3347f225eb0483c7bf3bedc495" args="(size_t ciphertextLength) const " -->
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          <td class="memname">size_t <a class="el" href="class_d_l___crypto_system_base.html">DL_CryptoSystemBase</a>&lt; <a class="el" href="class_p_k___decryptor.html">PK_Decryptor</a> , <a class="el" href="class_d_l___private_key.html">DL_PrivateKey</a>&lt; T &gt;  &gt;::MaxPlaintextLength           </td>
          <td>(</td>
          <td class="paramtype">size_t&nbsp;</td>
          <td class="paramname"> <em>ciphertextLength</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [inline, virtual, inherited]</code></td>
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Implements <a class="el" href="class_p_k___crypto_system.html#a4a3552c933a36b3aea26f31d00bee9b">PK_CryptoSystem</a>.
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Definition at line <a class="el" href="pubkey_8h-source.html#l01156">1156</a> of file <a class="el" href="pubkey_8h-source.html">pubkey.h</a>.
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<a class="anchor" name="c738aee0b0262899ad33379da8798c6a"></a><!-- doxytag: member="DL_DecryptorBase::CiphertextLength" ref="c738aee0b0262899ad33379da8798c6a" args="(size_t plaintextLength) const " -->
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          <td class="memname">size_t <a class="el" href="class_d_l___crypto_system_base.html">DL_CryptoSystemBase</a>&lt; <a class="el" href="class_p_k___decryptor.html">PK_Decryptor</a> , <a class="el" href="class_d_l___private_key.html">DL_PrivateKey</a>&lt; T &gt;  &gt;::CiphertextLength           </td>
          <td>(</td>
          <td class="paramtype">size_t&nbsp;</td>
          <td class="paramname"> <em>plaintextLength</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [inline, virtual, inherited]</code></td>
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Implements <a class="el" href="class_p_k___crypto_system.html#bf04a4e08fb69a1a118bad3e998ef6a6">PK_CryptoSystem</a>.
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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>.
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<a class="anchor" name="c510f55af473e85547237fdb39e441e1"></a><!-- doxytag: member="DL_DecryptorBase::ParameterSupported" ref="c510f55af473e85547237fdb39e441e1" args="(const char *name) const " -->
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          <td class="memname">bool <a class="el" href="class_d_l___crypto_system_base.html">DL_CryptoSystemBase</a>&lt; <a class="el" href="class_p_k___decryptor.html">PK_Decryptor</a> , <a class="el" href="class_d_l___private_key.html">DL_PrivateKey</a>&lt; T &gt;  &gt;::ParameterSupported           </td>
          <td>(</td>
          <td class="paramtype">const char *&nbsp;</td>
          <td class="paramname"> <em>name</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [inline, virtual, inherited]</code></td>
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Implements <a class="el" href="class_p_k___crypto_system.html#294c4664af51a72112db1f04e6ef9049">PK_CryptoSystem</a>.
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Definition at line <a class="el" href="pubkey_8h-source.html#l01168">1168</a> of file <a class="el" href="pubkey_8h-source.html">pubkey.h</a>.
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<a class="anchor" name="c98bd1dac38f73bdc7d0930053ce9f56"></a><!-- doxytag: member="DL_DecryptorBase::CreateDecryptionFilter" ref="c98bd1dac38f73bdc7d0930053ce9f56" args="(RandomNumberGenerator &amp;rng, BufferedTransformation *attachment=NULL, const NameValuePairs &amp;parameters=g_nullNameValuePairs) const" -->
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          <td class="memname"><a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> * PK_Decryptor::CreateDecryptionFilter           </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>
          <td></td>
          <td class="paramtype"><a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> *&nbsp;</td>
          <td class="paramname"> <em>attachment</em> = <code>NULL</code>, </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>parameters</em> = <code><a class="el" href="cryptlib_8h.html#d3205973dd1afa14090a683154c1109c">g_nullNameValuePairs</a></code></td><td>&nbsp;</td>
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          <td></td>
          <td>)</td>
          <td></td><td></td><td width="100%"> const<code> [virtual, inherited]</code></td>
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create a new decryption filter 
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<dl class="note" compact><dt><b>Note:</b></dt><dd>caller is responsible for deleting the returned pointer </dd></dl>

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Definition at line <a class="el" href="cryptlib_8cpp-source.html#l00644">644</a> of file <a class="el" href="cryptlib_8cpp-source.html">cryptlib.cpp</a>.
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<a class="anchor" name="f415eacc974d297a03c4e7de710e5b4e"></a><!-- doxytag: member="DL_DecryptorBase::FixedCiphertextLength" ref="f415eacc974d297a03c4e7de710e5b4e" args="() const" -->
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          <td class="memname">virtual size_t PK_CryptoSystem::FixedCiphertextLength           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [inline, virtual, inherited]</code></td>
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return fixed ciphertext length, if one exists, otherwise return 0 
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<dl class="note" compact><dt><b>Note:</b></dt><dd>"Fixed" here means length of ciphertext does not depend on length of plaintext. It usually does depend on the key length. </dd></dl>

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Reimplemented in <a class="el" href="class_t_f___crypto_system_base.html#91638e029e369d985f7858ad7daf2019">TF_CryptoSystemBase&lt; PK_Decryptor, TF_Base&lt; TrapdoorFunctionInverse, PK_EncryptionMessageEncodingMethod &gt; &gt;</a>, and <a class="el" href="class_t_f___crypto_system_base.html#91638e029e369d985f7858ad7daf2019">TF_CryptoSystemBase&lt; PK_Encryptor, TF_Base&lt; RandomizedTrapdoorFunction, PK_EncryptionMessageEncodingMethod &gt; &gt;</a>.
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Definition at line <a class="el" href="cryptlib_8h-source.html#l01165">1165</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#l01223">PK_Decryptor::FixedLengthDecrypt()</a>.
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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></ul>
<hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:34 2007 for Crypto++ by&nbsp;
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address>
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