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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: base32.cpp Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>base32.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// base32.cpp - written and placed in the public domain by Frank Palazzolo, based on hex.cpp by Wei Dai</span><a name="l00002"></a>00002 <a name="l00003"></a>00003 <span class="preprocessor">#include "pch.h"</span><a name="l00004"></a>00004 <span class="preprocessor">#include "base32.h"</span><a name="l00005"></a>00005 <a name="l00006"></a>00006 NAMESPACE_BEGIN(CryptoPP)<a name="l00007"></a>00007 <a name="l00008"></a>00008 static const byte s_vecUpper[] = "ABCDEFGHIJKMNPQRSTUVWXYZ23456789";<a name="l00009"></a>00009 static const byte s_vecLower[] = "abcdefghijkmnpqrstuvwxyz23456789";<a name="l00010"></a>00010 <a name="l00011"></a><a class="code" href="class_base32_encoder.html#51672a74492c2dd31c7cada0471c6326">00011</a> <span class="keywordtype">void</span> <a class="code" href="class_base32_encoder.html" title="Converts given data to base 32, the default code is based on draft-ietf-idn-dude-02...">Base32Encoder</a>::IsolatedInitialize(const <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &parameters)<a name="l00012"></a>00012 {<a name="l00013"></a>00013 <span class="keywordtype">bool</span> uppercase = parameters.GetValueWithDefault(<a class="code" href="namespace_name.html#fc26b6002da461c2c47f9499606eea75">Name::Uppercase</a>(), <span class="keyword">true</span>);<a name="l00014"></a>00014 m_filter->Initialize(<a class="code" href="class_combined_name_value_pairs.html">CombinedNameValuePairs</a>(<a name="l00015"></a>00015 parameters,<a name="l00016"></a>00016 MakeParameters(<a class="code" href="namespace_name.html#55fc7c0f55a4b8d8bfbea7bae9a9ae18">Name::EncodingLookupArray</a>(), uppercase ? &s_vecUpper[0] : &s_vecLower[0], <span class="keyword">false</span>)(<a class="code" href="namespace_name.html#e7c6ebc7562274e23f87906719f67480">Name::Log2Base</a>(), 5, <span class="keyword">true</span>)));<a name="l00017"></a>00017 }<a name="l00018"></a>00018 <a name="l00019"></a><a class="code" href="class_base32_decoder.html#4b013b73a5fa3038c9ac654cd0aceb40">00019</a> <span class="keywordtype">void</span> <a class="code" href="class_base32_decoder.html#4b013b73a5fa3038c9ac654cd0aceb40">Base32Decoder::IsolatedInitialize</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &parameters)<a name="l00020"></a>00020 {<a name="l00021"></a>00021 <a class="code" href="class_filter.html#0c011bdc71755b373292e7a722e9e332" title="initialize or reinitialize this object">BaseN_Decoder::Initialize</a>(<a class="code" href="class_combined_name_value_pairs.html">CombinedNameValuePairs</a>(<a name="l00022"></a>00022 parameters,<a name="l00023"></a>00023 MakeParameters(<a class="code" href="namespace_name.html#c1e139c8ca48f86140ed48dd32f288b3">Name::DecodingLookupArray</a>(), GetDefaultDecodingLookupArray(), <span class="keyword">false</span>)(<a class="code" href="namespace_name.html#e7c6ebc7562274e23f87906719f67480">Name::Log2Base</a>(), 5, <span class="keyword">true</span>)));<a name="l00024"></a>00024 }<a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="keyword">const</span> <span class="keywordtype">int</span> *Base32Decoder::GetDefaultDecodingLookupArray()<a name="l00027"></a>00027 {<a name="l00028"></a>00028 <span class="keyword">static</span> <span class="keywordtype">bool</span> s_initialized = <span class="keyword">false</span>;<a name="l00029"></a>00029 <span class="keyword">static</span> <span class="keywordtype">int</span> s_array[256];<a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="keywordflow">if</span> (!s_initialized)<a name="l00032"></a>00032 {<a name="l00033"></a>00033 <a class="code" href="class_base_n___decoder.html#a71d01a986edd08447afe2d906d35283">InitializeDecodingLookupArray</a>(s_array, s_vecUpper, 32, <span class="keyword">true</span>);<a name="l00034"></a>00034 s_initialized = <span class="keyword">true</span>;<a name="l00035"></a>00035 }<a name="l00036"></a>00036 <span class="keywordflow">return</span> s_array;<a name="l00037"></a>00037 }<a name="l00038"></a>00038 <a name="l00039"></a>00039 NAMESPACE_END</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:19 2007 for Crypto++ by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address></body></html>⌨️ 快捷键说明
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