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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++: ida.h 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>ida.h</h1><div class="fragment"><pre>00001 <span class="preprocessor">#ifndef CRYPTOPP_IDA_H</span>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_IDA_H</span>00003 <span class="preprocessor"></span>00004 <span class="preprocessor">#include "mqueue.h"</span>00005 <span class="preprocessor">#include "filters.h"</span>00006 <span class="preprocessor">#include "channels.h"</span>00007 <span class="preprocessor">#include <map></span>00008 <span class="preprocessor">#include <vector></span>00009 00010 NAMESPACE_BEGIN(CryptoPP)00011 00012 <span class="comment">/// base class for secret sharing and information dispersal</span><a name="l00013"></a><a class="code" href="class_raw_i_d_a.html">00013</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_raw_i_d_a.html">RawIDA</a> : <span class="keyword">public</span> AutoSignaling<Unflushable<Multichannel<Filter> > >00014 {00015 <span class="keyword">public</span>:00016 <a class="code" href="class_raw_i_d_a.html">RawIDA</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment=NULL)00017 : AutoSignaling<Unflushable<Multichannel<Filter> > >(attachment) {}00018 00019 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetThreshold()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_threshold;}00020 <span class="keywordtype">void</span> AddOutputChannel(word32 channelId);00021 <span class="keywordtype">void</span> ChannelData(word32 channelId, <span class="keyword">const</span> byte *inString, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keywordtype">bool</span> messageEnd);00022 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> InputBuffered(word32 channelId) <span class="keyword">const</span>;00023 00024 <span class="keywordtype">void</span> ChannelInitialize(<span class="keyword">const</span> std::string &channel, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters=g_nullNameValuePairs, <span class="keywordtype">int</span> propagation=-1);00025 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ChannelPut2(<span class="keyword">const</span> std::string &channel, <span class="keyword">const</span> byte *begin, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keywordtype">int</span> messageEnd, <span class="keywordtype">bool</span> blocking)00026 {00027 <span class="keywordflow">if</span> (!blocking)00028 <span class="keywordflow">throw</span> BlockingInputOnly(<span class="stringliteral">"RawIDA"</span>);00029 ChannelData(StringToWord<word32>(channel), begin, length, messageEnd != 0);00030 <span class="keywordflow">return</span> 0;00031 }00032 00033 <span class="keyword">protected</span>:00034 <span class="keyword">virtual</span> <span class="keywordtype">void</span> FlushOutputQueues();00035 <span class="keyword">virtual</span> <span class="keywordtype">void</span> OutputMessageEnds();00036 00037 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> InsertInputChannel(word32 channelId);00038 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> LookupInputChannel(word32 channelId) <span class="keyword">const</span>;00039 <span class="keywordtype">void</span> ComputeV(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>);00040 <span class="keywordtype">void</span> PrepareInterpolation();00041 <span class="keywordtype">void</span> ProcessInputQueues();00042 00043 std::map<word32, unsigned int> m_inputChannelMap;00044 std::map<word32, unsigned int>::iterator m_lastMapPosition;00045 std::vector<MessageQueue> m_inputQueues;00046 std::vector<word32> m_inputChannelIds, m_outputChannelIds, m_outputToInput;00047 std::vector<std::string> m_outputChannelIdStrings;00048 std::vector<ByteQueue> m_outputQueues;00049 <span class="keywordtype">int</span> m_threshold;00050 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_channelsReady, m_channelsFinished;00051 std::vector<SecBlock<word32> > m_v;00052 <a class="code" href="class_sec_block.html">SecBlock<word32></a> m_u, m_w, m_y;00053 };00054 <span class="comment"></span>00055 <span class="comment">/// a variant of Shamir's Secret Sharing Algorithm</span><a name="l00056"></a><a class="code" href="class_secret_sharing.html">00056</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_secret_sharing.html">SecretSharing</a> : <span class="keyword">public</span> CustomSignalPropagation<Filter>00057 {00058 <span class="keyword">public</span>:00059 <a class="code" href="class_secret_sharing.html">SecretSharing</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keywordtype">int</span> threshold, <span class="keywordtype">int</span> nShares, <a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment=NULL, <span class="keywordtype">bool</span> addPadding=<span class="keyword">true</span>)00060 : CustomSignalPropagation<Filter>(attachment), m_rng(rng), m_ida(<span class="keyword">new</span> OutputProxy(*<span class="keyword">this</span>, <span class="keyword">true</span>))00061 {<a class="code" href="class_secret_sharing.html#_secret_sharinga1">Initialize</a>(MakeParameters(<span class="stringliteral">"RecoveryThreshold"</span>, threshold)(<span class="stringliteral">"NumberOfShares"</span>, nShares)(<span class="stringliteral">"AddPadding"</span>, addPadding), 0);}00062 00063 <span class="keywordtype">void</span> <a class="code" href="class_secret_sharing.html#_secret_sharinga1">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters=g_nullNameValuePairs, <span class="keywordtype">int</span> propagation=-1);00064 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_secret_sharing.html#_secret_sharinga2">Put2</a>(<span class="keyword">const</span> byte *begin, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keywordtype">int</span> messageEnd, <span class="keywordtype">bool</span> blocking);<a name="l00065"></a><a class="code" href="class_secret_sharing.html#_secret_sharinga3">00065</a> <span class="keywordtype">bool</span> <a class="code" href="class_secret_sharing.html#_secret_sharinga3">Flush</a>(<span class="keywordtype">bool</span> hardFlush, <span class="keywordtype">int</span> propagation=-1, <span class="keywordtype">bool</span> blocking=<span class="keyword">true</span>) {<span class="keywordflow">return</span> m_ida.Flush(hardFlush, propagation, blocking);}00066 00067 <span class="keyword">protected</span>:00068 <a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &m_rng;00069 <a class="code" href="class_raw_i_d_a.html">RawIDA</a> m_ida;00070 <span class="keywordtype">bool</span> m_pad;00071 };00072 <span class="comment"></span>00073 <span class="comment">/// a variant of Shamir's Secret Sharing Algorithm</span>⌨️ 快捷键说明
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