class_c_f_b___mode_policy.html

著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

</td></tr>
</table>
</dl>

<p>
Definition at line <a class="el" href="cryptlib_8h-source.html#l00382">382</a> of file <a class="el" href="cryptlib_8h-source.html">cryptlib.h</a>.
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="8c9304fff5af593ee68d3cf0d33c06e9"></a><!-- doxytag: member="CFB_ModePolicy::Ref" ref="8c9304fff5af593ee68d3cf0d33c06e9" args="()" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="class_stream_transformation.html">StreamTransformation</a>&amp; StreamTransformation::Ref           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [inline, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
return a reference to this object, 
<p>
This function is useful for passing a temporary <a class="el" href="class_stream_transformation.html" title="interface for the data processing part of stream ciphers">StreamTransformation</a> object to a function that takes a non-const reference. 
<p>
Definition at line <a class="el" href="cryptlib_8h-source.html#l00470">470</a> of file <a class="el" href="cryptlib_8h-source.html">cryptlib.h</a>.
</div>
</div><p>
<a class="anchor" name="f66ef64545279c01310718af3d627534"></a><!-- doxytag: member="CFB_ModePolicy::OptimalBlockSize" ref="f66ef64545279c01310718af3d627534" args="() const" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual unsigned int StreamTransformation::OptimalBlockSize           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [inline, virtual, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
returns the input block size that is most efficient for this cipher 
<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>optimal input length is n * <a class="el" href="class_stream_transformation.html#f66ef64545279c01310718af3d627534" title="returns the input block size that is most efficient for this cipher">OptimalBlockSize()</a> - <a class="el" href="class_stream_transformation.html#b8422f6eee08fbc70069e222186e90de" title="returns how much of the current block is used up">GetOptimalBlockSizeUsed()</a> for any n &gt; 0 </dd></dl>

<p>
Reimplemented in <a class="el" href="class_e_c_b___one_way.html#697d02a4fbec48b4accec6ce4226e083">ECB_OneWay</a>.
<p>
Definition at line <a class="el" href="cryptlib_8h-source.html#l00477">477</a> of file <a class="el" href="cryptlib_8h-source.html">cryptlib.h</a>.
<p>
Referenced by <a class="el" href="filters_8cpp-source.html#l00574">StreamTransformationFilter::FirstPut()</a>.
</div>
</div><p>
<a class="anchor" name="26feabde21bc4d1783195969733e3bb0"></a><!-- doxytag: member="CFB_ModePolicy::ProcessData" ref="26feabde21bc4d1783195969733e3bb0" args="(byte *outString, const byte *inString, size_t length)=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual void StreamTransformation::ProcessData           </td>
          <td>(</td>
          <td class="paramtype">byte *&nbsp;</td>
          <td class="paramname"> <em>outString</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const byte *&nbsp;</td>
          <td class="paramname"> <em>inString</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&nbsp;</td>
          <td class="paramname"> <em>length</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td width="100%"><code> [pure virtual, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
encrypt or decrypt an array of bytes of specified length 
<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>either inString == outString, or they don't overlap </dd></dl>

<p>
Implemented in <a class="el" href="class_weak1_1_1_a_r_c4___base.html#a20124dfc1bac5050b1cd922e552ba95">Weak1::ARC4_Base</a>, <a class="el" href="class_public_blum_blum_shub.html#fb03a58653cb83c9a9013f3a57105bfc">PublicBlumBlumShub</a>, and <a class="el" href="class_block_oriented_cipher_mode_base.html#947329920de17742397a7c0fd01d3364">BlockOrientedCipherModeBase</a>.
<p>
Referenced by <a class="el" href="filters_8cpp-source.html#l00613">StreamTransformationFilter::LastPut()</a>, and <a class="el" href="cryptlib_8cpp-source.html#l00119">StreamTransformation::ProcessLastBlock()</a>.
</div>
</div><p>
<a class="anchor" name="0668b78edaea082f87bf3e878c4c02f7"></a><!-- doxytag: member="CFB_ModePolicy::ProcessLastBlock" ref="0668b78edaea082f87bf3e878c4c02f7" args="(byte *outString, const byte *inString, size_t length)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void StreamTransformation::ProcessLastBlock           </td>
          <td>(</td>
          <td class="paramtype">byte *&nbsp;</td>
          <td class="paramname"> <em>outString</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const byte *&nbsp;</td>
          <td class="paramname"> <em>inString</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&nbsp;</td>
          <td class="paramname"> <em>length</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td width="100%"><code> [virtual, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
for ciphers where the last block of data is special, encrypt or decrypt the last block of data