classpcypher.html

pwlib开发文档

       
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<p>
Decode the data. <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>data</em>&nbsp;</td><td>
Encoded data (cyphertext). </td></tr>
<tr><td valign=top><em>length</em>&nbsp;</td><td>
Clear text binary data decoded. Maximum number of bytes of data decoded. </td></tr>
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<a name="a8" doxytag="PCypher::Decode"></a><p>
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          <td class="md" nowrap valign="top"> PINDEX PCypher::Decode </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>cypher</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>void *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>data</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>PINDEX&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>length</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
Decode the data. <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>data</em>&nbsp;</td><td>
Base64 Cypher text string to be decoded. </td></tr>
<tr><td valign=top><em>length</em>&nbsp;</td><td>
Clear text binary data decoded. Maximum number of bytes of data decoded. </td></tr>
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<a name="a7" doxytag="PCypher::Decode"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PCypher::Decode </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>cypher</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="classPBYTEArray.html">PBYTEArray</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>clear</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
Decode the data. <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>clear</em>&nbsp;</td><td>
Base64 Cypher text string to be decoded. Clear text binary data decoded. </td></tr>
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<a name="a6" doxytag="PCypher::Decode"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PCypher::Decode </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>cypher</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>clear</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
Decode the data. <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>clear</em>&nbsp;</td><td>
Base64 Cypher text string to be decoded. Clear text string decoded. </td></tr>
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<a name="a5" doxytag="PCypher::Decode"></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="classPString.html">PString</a> PCypher::Decode </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>cypher</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Decode the data. <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>cypher</em>&nbsp;</td><td>
Base64 Cypher text string to be decoded. </td></tr>
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<a name="b4" doxytag="PCypher::DecodeBlock"></a><p>
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          <td class="md" nowrap valign="top"> virtual void PCypher::DecodeBlock </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const void *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>in</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>void *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>out</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [protected, pure virtual]</code></td>
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<p>
Dencode an n bit block of memory according to the encryption algorithm. <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>out</em>&nbsp;</td><td>
Pointer to coded n bit block. Pointer to clear n bit block. </td></tr>
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</dl>
<p>
Implemented in <a class="el" href="classPTEACypher.html#b2">PTEACypher</a>.    </td>
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<a name="a4" doxytag="PCypher::Encode"></a><p>
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          <td class="md" nowrap valign="top"> void PCypher::Encode </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const void *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>data</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>PINDEX&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>length</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="classPBYTEArray.html">PBYTEArray</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>coded</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
Encode the data. The data is encoded using the algorithm embodied by the descendent class and the key specifed in the construction of the objects instance.
<p>
The first form takes a string and returns an encoded string. The second form takes arbitrary binary data bytes and returns an encoded string. In both cases the encoded string is always 7 bit printable ASCII suitable for use in mail systems etc.
<p>
The final form takes and arbitrary block of bytes and encodes them into another block of binary data.
<p>
<dl compact><dt><b>Returns: </b></dt><dd>
 encoded string. </dl>    </td>
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<a name="a3" doxytag="PCypher::Encode"></a><p>
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          <td class="md" nowrap valign="top"> void PCypher::Encode </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPBYTEArray.html">PBYTEArray</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>clear</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="classPBYTEArray.html">PBYTEArray</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>coded</em></td>
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