cryptlib_8cpp-source.html

来自「Crypto++是一个非常强大的密码学库,主要是功能全」· HTML 代码 · 共 649 行 · 第 1/5 页

00124 {
00125         <span class="keyword">class </span>NullRNG : <span class="keyword">public</span> <a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a>
00126         {
00127         <span class="keyword">public</span>:
00128                 std::string <a class="code" href="class_algorithm.html#_zlib_decompressora17">AlgorithmName</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> <span class="stringliteral">"NullRNG"</span>;}
00129                 byte <a class="code" href="class_random_number_generator.html#_sapphire_r_n_ga2">GenerateByte</a>() {<span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html">NotImplemented</a>(<span class="stringliteral">"NullRNG: NullRNG should only be passed to functions that don't need to generate random bytes"</span>);}
00130         };
00131 
00132         <span class="keyword">static</span> NullRNG s_nullRNG;
00133         <span class="keywordflow">return</span> s_nullRNG;
00134 }
00135 
<a name="l00136"></a><a class="code" href="class_hash_transformation.html#_x_m_a_c_ca17">00136</a> <span class="keywordtype">bool</span> <a class="code" href="class_hash_transformation.html#_x_m_a_c_ca17">HashTransformation::TruncatedVerify</a>(<span class="keyword">const</span> byte *digestIn, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digestLength)
00137 {
00138         ThrowIfInvalidTruncatedSize(digestLength);
00139         <a class="code" href="class_sec_block.html">SecByteBlock</a> digest(digestLength);
00140         <a class="code" href="class_hash_transformation.html#_x_m_a_c_ca15">TruncatedFinal</a>(digest, digestLength);
00141         <span class="keywordflow">return</span> memcmp(digest, digestIn, digestLength) == 0;
00142 }
00143 
00144 <span class="keywordtype">void</span> HashTransformation::ThrowIfInvalidTruncatedSize(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size)<span class="keyword"> const</span>
00145 <span class="keyword"></span>{
00146         <span class="keywordflow">if</span> (size &gt; <a class="code" href="class_hash_transformation.html#_x_m_a_c_ca9">DigestSize</a>())
00147                 <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"HashTransformation: can't truncate a "</span> + IntToString(<a class="code" href="class_hash_transformation.html#_x_m_a_c_ca9">DigestSize</a>()) + <span class="stringliteral">" byte digest to "</span> + IntToString(size) + <span class="stringliteral">" bytes"</span>);
00148 }
00149 
<a name="l00150"></a><a class="code" href="class_buffered_transformation.html#_zlib_decompressorz3_0">00150</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz3_0">BufferedTransformation::GetMaxWaitObjectCount</a>()<span class="keyword"> const</span>
00151 <span class="keyword"></span>{
00152         <span class="keyword">const</span> <a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *t = <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>();
00153         <span class="keywordflow">return</span> t ? t-&gt;GetMaxWaitObjectCount() : 0;
00154 }
00155 
<a name="l00156"></a><a class="code" href="class_buffered_transformation.html#_zlib_decompressorz3_1">00156</a> <span class="keywordtype">void</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz3_1">BufferedTransformation::GetWaitObjects</a>(<a class="code" href="class_wait_object_container.html">WaitObjectContainer</a> &amp;container)
00157 {
00158         <a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *t = <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>();
00159         <span class="keywordflow">if</span> (t)
00160                 t-&gt;GetWaitObjects(container);
00161 }
00162 
<a name="l00163"></a><a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_2">00163</a> <span class="keywordtype">void</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_2">BufferedTransformation::Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;parameters, <span class="keywordtype">int</span> propagation)
00164 {
00165         assert(!<a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>());
00166         IsolatedInitialize(parameters);
00167 }
00168 
<a name="l00169"></a><a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_3">00169</a> <span class="keywordtype">bool</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_3">BufferedTransformation::Flush</a>(<span class="keywordtype">bool</span> hardFlush, <span class="keywordtype">int</span> propagation, <span class="keywordtype">bool</span> blocking)
00170 {
00171         assert(!<a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>());
00172         <span class="keywordflow">return</span> IsolatedFlush(hardFlush, blocking);
00173 }
00174 
<a name="l00175"></a><a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_4">00175</a> <span class="keywordtype">bool</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_4">BufferedTransformation::MessageSeriesEnd</a>(<span class="keywordtype">int</span> propagation, <span class="keywordtype">bool</span> blocking)
00176 {
00177         assert(!<a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>());
00178         <span class="keywordflow">return</span> IsolatedMessageSeriesEnd(blocking);
00179 }
00180 
00181 byte * BufferedTransformation::ChannelCreatePutSpace(<span class="keyword">const</span> std::string &amp;channel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &amp;size)
00182 {
00183         <span class="keywordflow">if</span> (channel.empty())
00184                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz1_4">CreatePutSpace</a>(size);
00185         <span class="keywordflow">else</span>
00186                 <span class="keywordflow">throw</span> NoChannelSupport();
00187 }
00188 
00189 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> BufferedTransformation::ChannelPut2(<span class="keyword">const</span> std::string &amp;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)
00190 {
00191         <span class="keywordflow">if</span> (channel.empty())
00192                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_unflushable_3_01_sink_01_4z1_9">Put2</a>(begin, length, messageEnd, blocking);
00193         <span class="keywordflow">else</span>
00194                 <span class="keywordflow">throw</span> NoChannelSupport();
00195 }
00196 
00197 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> BufferedTransformation::ChannelPutModifiable2(<span class="keyword">const</span> std::string &amp;channel, 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)
00198 {
00199         <span class="keywordflow">if</span> (channel.empty())
00200                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz1_9">PutModifiable2</a>(begin, length, messageEnd, blocking);
00201         <span class="keywordflow">else</span>
00202                 <span class="keywordflow">return</span> ChannelPut2(channel, begin, length, messageEnd, blocking);
00203 }
00204 
00205 <span class="keywordtype">void</span> BufferedTransformation::ChannelInitialize(<span class="keyword">const</span> std::string &amp;channel, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;parameters, <span class="keywordtype">int</span> propagation)
00206 {
00207         <span class="keywordflow">if</span> (channel.empty())
00208                 <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_2">Initialize</a>(parameters, propagation);
00209         <span class="keywordflow">else</span>
00210                 <span class="keywordflow">throw</span> NoChannelSupport();
00211 }
00212 
00213 <span class="keywordtype">bool</span> BufferedTransformation::ChannelFlush(<span class="keyword">const</span> std::string &amp;channel, <span class="keywordtype">bool</span> completeFlush, <span class="keywordtype">int</span> propagation, <span class="keywordtype">bool</span> blocking)
00214 {
00215         <span class="keywordflow">if</span> (channel.empty())
00216                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_3">Flush</a>(completeFlush, propagation, blocking);
00217         <span class="keywordflow">else</span>
00218                 <span class="keywordflow">throw</span> NoChannelSupport();
00219 }
00220 
00221 <span class="keywordtype">bool</span> BufferedTransformation::ChannelMessageSeriesEnd(<span class="keyword">const</span> std::string &amp;channel, <span class="keywordtype">int</span> propagation, <span class="keywordtype">bool</span> blocking)
00222 {
00223         <span class="keywordflow">if</span> (channel.empty())
00224                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz5_4">MessageSeriesEnd</a>(propagation, blocking);
00225         <span class="keywordflow">else</span>
00226                 <span class="keywordflow">throw</span> NoChannelSupport();
00227 }
00228 
<a name="l00229"></a><a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_0">00229</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_0">BufferedTransformation::MaxRetrievable</a>()<span class="keyword"> const</span>
00230 <span class="keyword"></span>{
00231         <span class="keywordflow">if</span> (<a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>())
00232                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>()-&gt;<a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_0">MaxRetrievable</a>();
00233         <span class="keywordflow">else</span>
00234                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_12">CopyTo</a>(TheBitBucket());
00235 }
00236 
<a name="l00237"></a><a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_1">00237</a> <span class="keywordtype">bool</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_1">BufferedTransformation::AnyRetrievable</a>()<span class="keyword"> const</span>
00238 <span class="keyword"></span>{
00239         <span class="keywordflow">if</span> (<a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>())
00240                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>()-&gt;<a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_1">AnyRetrievable</a>();
00241         <span class="keywordflow">else</span>
00242         {
00243                 byte b;
00244                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_4">Peek</a>(b) != 0;
00245         }
00246 }
00247 
<a name="l00248"></a><a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_2">00248</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_2">BufferedTransformation::Get</a>(byte &amp;outByte)
00249 {
00250         <span class="keywordflow">if</span> (<a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>())
00251                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_windows_pipe_sinkz15_1">AttachedTransformation</a>()-&gt;<a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_2">Get</a>(outByte);
00252         <span class="keywordflow">else</span>
00253                 <span class="keywordflow">return</span> <a class="code" href="class_buffered_transformation.html#_zlib_decompressorz7_2">Get</a>(&amp;outByte, 1);