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著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

<a name="l00079"></a>00079 CRYPTOPP_DLL <span class="keywordtype">void</span> CRYPTOPP_API DERReencode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;source, <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;dest);
<a name="l00080"></a>00080 <span class="comment"></span>
<a name="l00081"></a>00081 <span class="comment">//! Object Identifier</span>
<a name="l00082"></a><a class="code" href="class_o_i_d.html">00082</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL OID
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keyword">public</span>:
<a name="l00085"></a><a class="code" href="class_o_i_d.html#555321b8c9629499df393575c326fb55">00085</a>         OID() {}
<a name="l00086"></a><a class="code" href="class_o_i_d.html#8589ab74c40cdd6e6a599f99e109d073">00086</a>         OID(word32 v) : m_values(1, v) {}
<a name="l00087"></a><a class="code" href="class_o_i_d.html#8f0b919bba21aa4e1efb30c88324d2d5">00087</a>         OID(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt) {BERDecode(bt);}
<a name="l00088"></a>00088 
<a name="l00089"></a><a class="code" href="class_o_i_d.html#f7c765f8b8b4d5a46d9b037ad9084543">00089</a>         <span class="keyword">inline</span> OID &amp; operator+=(word32 rhs) {m_values.push_back(rhs); <span class="keywordflow">return</span> *<span class="keyword">this</span>;}
<a name="l00090"></a>00090 
<a name="l00091"></a>00091         <span class="keywordtype">void</span> DEREncode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt) <span class="keyword">const</span>;
<a name="l00092"></a>00092         <span class="keywordtype">void</span> BERDecode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt);
<a name="l00093"></a>00093 
<a name="l00094"></a>00094         <span class="comment">// throw BERDecodeErr() if decoded value doesn't equal this OID</span>
<a name="l00095"></a>00095         <span class="keywordtype">void</span> BERDecodeAndCheck(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt) <span class="keyword">const</span>;
<a name="l00096"></a>00096 
<a name="l00097"></a><a class="code" href="class_o_i_d.html#93dfb8399e6a30832dc7eebd2e602997">00097</a>         std::vector&lt;word32&gt; m_values;
<a name="l00098"></a>00098 
<a name="l00099"></a>00099 <span class="keyword">private</span>:
<a name="l00100"></a>00100         <span class="keyword">static</span> <span class="keywordtype">void</span> EncodeValue(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt, word32 v);
<a name="l00101"></a>00101         <span class="keyword">static</span> <span class="keywordtype">size_t</span> DecodeValue(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt, word32 &amp;v);
<a name="l00102"></a>00102 };
<a name="l00103"></a>00103 
<a name="l00104"></a><a class="code" href="class_encoded_object_filter.html">00104</a> <span class="keyword">class </span><a class="code" href="class_encoded_object_filter.html">EncodedObjectFilter</a> : <span class="keyword">public</span> <a class="code" href="class_filter.html" title="provides an implementation of BufferedTransformation's attachment interface">Filter</a>
<a name="l00105"></a>00105 {
<a name="l00106"></a>00106 <span class="keyword">public</span>:
<a name="l00107"></a><a class="code" href="class_encoded_object_filter.html#79e83aa124d042a26fba07ca3ede9d08d15616e9c6ca1060eef75928b433e83d">00107</a>         <span class="keyword">enum</span> <a class="code" href="class_encoded_object_filter.html#79e83aa124d042a26fba07ca3ede9d08">Flag</a> {<a class="code" href="class_encoded_object_filter.html#79e83aa124d042a26fba07ca3ede9d08d15616e9c6ca1060eef75928b433e83d">PUT_OBJECTS</a>=1, <a class="code" href="class_encoded_object_filter.html#79e83aa124d042a26fba07ca3ede9d083cc81ef4dcdc4e0fc8122acd230ece7b">PUT_MESSANGE_END_AFTER_EACH_OBJECT</a>=2, <a class="code" href="class_encoded_object_filter.html#79e83aa124d042a26fba07ca3ede9d0850e27220e4156443726d4610a5caa716">PUT_MESSANGE_END_AFTER_ALL_OBJECTS</a>=4, <a class="code" href="class_encoded_object_filter.html#79e83aa124d042a26fba07ca3ede9d08c2d3a09df4cff483a6867d5056aa1264">PUT_MESSANGE_SERIES_END_AFTER_ALL_OBJECTS</a>=8};
<a name="l00108"></a>00108         <a class="code" href="class_encoded_object_filter.html">EncodedObjectFilter</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> *attachment = NULL, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nObjects = 1, word32 flags = 0);
<a name="l00109"></a>00109 
<a name="l00110"></a>00110         <span class="keywordtype">void</span> <a class="code" href="class_encoded_object_filter.html#ecdfd9aa4a927b559472d80339bfb9c1">Put</a>(<span class="keyword">const</span> byte *inString, <span class="keywordtype">size_t</span> length);
<a name="l00111"></a>00111 
<a name="l00112"></a><a class="code" href="class_encoded_object_filter.html#b01e0552a5c3db1e7f7790e0dfb393ac">00112</a>         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_encoded_object_filter.html#b01e0552a5c3db1e7f7790e0dfb393ac">GetNumberOfCompletedObjects</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_nCurrentObject;}
<a name="l00113"></a><a class="code" href="class_encoded_object_filter.html#bf2e20b8b8f139594da8690b8866a2dc">00113</a>         <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="class_encoded_object_filter.html#bf2e20b8b8f139594da8690b8866a2dc">GetPositionOfObject</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i)<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_positions[i];}
<a name="l00114"></a>00114 
<a name="l00115"></a>00115 <span class="keyword">private</span>:
<a name="l00116"></a>00116         <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp; CurrentTarget();
<a name="l00117"></a>00117 
<a name="l00118"></a>00118         word32 m_flags;
<a name="l00119"></a>00119         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_nObjects, m_nCurrentObject, m_level;
<a name="l00120"></a>00120         std::vector&lt;unsigned int&gt; m_positions;
<a name="l00121"></a>00121         <a class="code" href="class_byte_queue.html" title="Byte Queue.">ByteQueue</a> m_queue;
<a name="l00122"></a>00122         <span class="keyword">enum</span> State {IDENTIFIER, LENGTH, BODY, TAIL, ALL_DONE} m_state;
<a name="l00123"></a>00123         byte m_id;
<a name="l00124"></a>00124         lword m_lengthRemaining;
<a name="l00125"></a>00125 };
<a name="l00126"></a>00126 <span class="comment"></span>
<a name="l00127"></a>00127 <span class="comment">//! BER General Decoder</span>
<a name="l00128"></a><a class="code" href="class_b_e_r_general_decoder.html">00128</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL BERGeneralDecoder : <span class="keyword">public</span> <a class="code" href="class_store.html" title="A BufferedTransformation that only contains pre-existing data as "output".">Store</a>
<a name="l00129"></a>00129 {
<a name="l00130"></a>00130 <span class="keyword">public</span>:
<a name="l00131"></a>00131         <span class="keyword">explicit</span> BERGeneralDecoder(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;inQueue, byte asnTag);
<a name="l00132"></a>00132         <span class="keyword">explicit</span> BERGeneralDecoder(BERGeneralDecoder &amp;inQueue, byte asnTag);
<a name="l00133"></a>00133         ~BERGeneralDecoder();
<a name="l00134"></a>00134 
<a name="l00135"></a><a class="code" href="class_b_e_r_general_decoder.html#0de13dec710ab2fa27b41cdef5da2bab">00135</a>         <span class="keywordtype">bool</span> IsDefiniteLength()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_definiteLength;}
<a name="l00136"></a><a class="code" href="class_b_e_r_general_decoder.html#0a404a30dc03b914c4f2eb0ebfcde74c">00136</a>         lword RemainingLength()<span class="keyword"> const </span>{assert(m_definiteLength); <span class="keywordflow">return</span> m_length;}
<a name="l00137"></a>00137         <span class="keywordtype">bool</span> EndReached() <span class="keyword">const</span>;
<a name="l00138"></a>00138         byte PeekByte() <span class="keyword">const</span>;
<a name="l00139"></a>00139         <span class="keywordtype">void</span> CheckByte(byte b);
<a name="l00140"></a>00140 
<a name="l00141"></a>00141         <span class="keywordtype">size_t</span> <a class="code" href="class_buffered_transformation.html#041e8af260c474a43bd232cd4143f406" title="upon return, byteCount contains number of bytes that have finished being transfered...">TransferTo2</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;target, lword &amp;transferBytes, <span class="keyword">const</span> std::string &amp;channel=NULL_CHANNEL, <span class="keywordtype">bool</span> blocking=<span class="keyword">true</span>);
<a name="l00142"></a>00142         <span class="keywordtype">size_t</span> <a class="code" href="class_buffered_transformation.html#0dd57085cd3e3340eb8d16d941332a6a" title="upon return, begin contains the start position of data yet to be finished copying...">CopyRangeTo2</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;target, lword &amp;begin, lword end=LWORD_MAX, <span class="keyword">const</span> std::string &amp;channel=NULL_CHANNEL, <span class="keywordtype">bool</span> blocking=<span class="keyword">true</span>) <span class="keyword">const</span>;
<a name="l00143"></a>00143 
<a name="l00144"></a>00144         <span class="comment">// call this to denote end of sequence</span>
<a name="l00145"></a>00145         <span class="keywordtype">void</span> <a class="code" href="class_buffered_transformation.html#20ae0ef2e4ff338b43849e541e9b940f">MessageEnd</a>();
<a name="l00146"></a>00146 
<a name="l00147"></a>00147 <span class="keyword">protected</span>:
<a name="l00148"></a><a class="code" href="class_b_e_r_general_decoder.html#29c44ea3a6c6cdf63c58046d8ab22266">00148</a>         <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;m_inQueue;
<a name="l00149"></a><a class="code" href="class_b_e_r_general_decoder.html#5eb4279b5ed2b47bc9811d4bff81b532">00149</a>         <span class="keywordtype">bool</span> m_finished, m_definiteLength;
<a name="l00150"></a><a class="code" href="class_b_e_r_general_decoder.html#11096d3b64df9f0b3ff3d8d74be9b3c3">00150</a>         lword m_length;
<a name="l00151"></a>00151 
<a name="l00152"></a>00152 <span class="keyword">private</span>:
<a name="l00153"></a>00153         <span class="keywordtype">void</span> Init(byte asnTag);
<a name="l00154"></a>00154         <span class="keywordtype">void</span> StoreInitialize(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &amp;parameters) {assert(<span class="keyword">false</span>);}
<a name="l00155"></a>00155         lword ReduceLength(lword delta);
<a name="l00156"></a>00156 };
<a name="l00157"></a>00157 <span class="comment"></span>
<a name="l00158"></a>00158 <span class="comment">//! DER General Encoder</span>
<a name="l00159"></a><a class="code" href="class_d_e_r_general_encoder.html">00159</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL DERGeneralEncoder : <span class="keyword">public</span> <a class="code" href="class_byte_queue.html" title="Byte Queue.">ByteQueue</a>
<a name="l00160"></a>00160 {
<a name="l00161"></a>00161 <span class="keyword">public</span>:
<a name="l00162"></a>00162         <span class="keyword">explicit</span> DERGeneralEncoder(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;outQueue, byte asnTag = SEQUENCE | CONSTRUCTED);
<a name="l00163"></a>00163         <span class="keyword">explicit</span> DERGeneralEncoder(DERGeneralEncoder &amp;outQueue, byte asnTag = SEQUENCE | CONSTRUCTED);
<a name="l00164"></a>00164         ~DERGeneralEncoder();
<a name="l00165"></a>00165 
<a name="l00166"></a>00166         <span class="comment">// call this to denote end of sequence</span>
<a name="l00167"></a>00167         <span class="keywordtype">void</span> <a class="code" href="class_buffered_transformation.html#20ae0ef2e4ff338b43849e541e9b940f">MessageEnd</a>();
<a name="l00168"></a>00168 
<a name="l00169"></a>00169 <span class="keyword">private</span>:
<a name="l00170"></a>00170         <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;m_outQueue;
<a name="l00171"></a>00171         <span class="keywordtype">bool</span> m_finished;
<a name="l00172"></a>00172 
<a name="l00173"></a>00173         byte m_asnTag;
<a name="l00174"></a>00174 };
<a name="l00175"></a>00175 <span class="comment"></span>
<a name="l00176"></a>00176 <span class="comment">//! BER Sequence Decoder</span>
<a name="l00177"></a><a class="code" href="class_b_e_r_sequence_decoder.html">00177</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL BERSequenceDecoder : <span class="keyword">public</span> BERGeneralDecoder