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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Crypto++: base64.cpp Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.2 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Compound List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Compound Members</a> | <a class="qindex" href="globals.html">File Members</a></div><h1>base64.cpp</h1><div class="fragment"><pre>00001 <span class="comment">// base64.cpp - written and placed in the public domain by Wei Dai</span>00002 00003 <span class="preprocessor">#include "pch.h"</span>00004 <span class="preprocessor">#include "base64.h"</span>00005 00006 NAMESPACE_BEGIN(CryptoPP)00007 00008 <span class="keyword">static</span> <span class="keyword">const</span> byte s_vec[] =00009 <span class="stringliteral">"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"</span>;00010 <span class="keyword">static</span> <span class="keyword">const</span> byte s_padding = <span class="charliteral">'='</span>;00011 00012 <span class="keywordtype">void</span> Base64Encoder::IsolatedInitialize(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters)00013 {00014 <span class="keywordtype">bool</span> insertLineBreaks = parameters.<a class="code" href="class_name_value_pairs.html#_x_t_r___d_ha40">GetValueWithDefault</a>(<span class="stringliteral">"InsertLineBreaks"</span>, <span class="keyword">true</span>);00015 <span class="keywordtype">int</span> maxLineLength = parameters.<a class="code" href="class_name_value_pairs.html#_x_t_r___d_ha43">GetIntValueWithDefault</a>(<span class="stringliteral">"MaxLineLength"</span>, 72);00016 00017 m_filter->Initialize(CombinedNameValuePairs(00018 parameters,00019 MakeParameters(<span class="stringliteral">"EncodingLookupArray"</span>, (<span class="keyword">const</span> byte *)s_vec)00020 (<span class="stringliteral">"PaddingByte"</span>, s_padding)00021 (<span class="stringliteral">"Log2Base"</span>, 6)00022 (<span class="stringliteral">"GroupSize"</span>, insertLineBreaks ? maxLineLength : 0)00023 (<span class="stringliteral">"Seperator"</span>, <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a>(<span class="stringliteral">"\n"</span>))00024 (<span class="stringliteral">"Terminator"</span>, <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a>(<span class="stringliteral">"\n"</span>))));00025 }00026 00027 <span class="keyword">const</span> <span class="keywordtype">int</span> *Base64Decoder::GetDecodingLookupArray()00028 {00029 <span class="keyword">static</span> <span class="keywordtype">bool</span> s_initialized = <span class="keyword">false</span>;00030 <span class="keyword">static</span> <span class="keywordtype">int</span> s_array[256];00031 00032 <span class="keywordflow">if</span> (!s_initialized)00033 {00034 InitializeDecodingLookupArray(s_array, s_vec, 64, <span class="keyword">false</span>);00035 s_initialized = <span class="keyword">true</span>;00036 }00037 <span class="keywordflow">return</span> s_array;00038 }00039 00040 NAMESPACE_END</pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Jul 8 23:34:08 2003 for Crypto++ by<a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border=0 > </a>1.3.2 </small></address></body></html>⌨️ 快捷键说明
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