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<div class="title">asn.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// asn.cpp - written and placed in the public domain 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
<a name="l00005"></a>00005 <span class="preprocessor">#ifndef CRYPTOPP_IMPORTS</span>
<a name="l00006"></a>00006 <span class="preprocessor"></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include "asn.h"</span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="preprocessor">#include <iomanip></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <time.h></span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 NAMESPACE_BEGIN(CryptoPP)
<a name="l00013"></a>00013 USING_NAMESPACE(std)
<a name="l00014"></a>00014 <span class="comment"></span>
<a name="l00015"></a>00015 <span class="comment">/// DER Length</span>
<a name="l00016"></a>00016 <span class="comment"></span><span class="keywordtype">size_t</span> DERLengthEncode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, lword length)
<a name="l00017"></a>00017 {
<a name="l00018"></a>00018 <span class="keywordtype">size_t</span> i=0;
<a name="l00019"></a>00019 <span class="keywordflow">if</span> (length <= 0x7f)
<a name="l00020"></a>00020 {
<a name="l00021"></a>00021 bt.Put(byte(length));
<a name="l00022"></a>00022 i++;
<a name="l00023"></a>00023 }
<a name="l00024"></a>00024 <span class="keywordflow">else</span>
<a name="l00025"></a>00025 {
<a name="l00026"></a>00026 bt.Put(byte(BytePrecision(length) | 0x80));
<a name="l00027"></a>00027 i++;
<a name="l00028"></a>00028 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j=BytePrecision(length); j; --j)
<a name="l00029"></a>00029 {
<a name="l00030"></a>00030 bt.Put(byte(length >> (j-1)*8));
<a name="l00031"></a>00031 i++;
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033 }
<a name="l00034"></a>00034 <span class="keywordflow">return</span> i;
<a name="l00035"></a>00035 }
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keywordtype">bool</span> BERLengthDecode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, lword &length, <span class="keywordtype">bool</span> &definiteLength)
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 byte b;
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b))
<a name="l00042"></a>00042 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="keywordflow">if</span> (!(b & 0x80))
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 definiteLength = <span class="keyword">true</span>;
<a name="l00047"></a>00047 length = b;
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049 <span class="keywordflow">else</span>
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lengthBytes = b & 0x7f;
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keywordflow">if</span> (lengthBytes == 0)
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 definiteLength = <span class="keyword">false</span>;
<a name="l00056"></a>00056 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a>00059 definiteLength = <span class="keyword">true</span>;
<a name="l00060"></a>00060 length = 0;
<a name="l00061"></a>00061 <span class="keywordflow">while</span> (lengthBytes--)
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 <span class="keywordflow">if</span> (length >> (8*(<span class="keyword">sizeof</span>(length)-1)))
<a name="l00064"></a>00064 BERDecodeError(); <span class="comment">// length about to overflow</span>
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b))
<a name="l00067"></a>00067 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 length = (length << 8) | b;
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keywordtype">bool</span> BERLengthDecode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <span class="keywordtype">size_t</span> &length)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 lword lw;
<a name="l00078"></a>00078 <span class="keywordtype">bool</span> definiteLength;
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (!BERLengthDecode(bt, lw, definiteLength))
<a name="l00080"></a>00080 BERDecodeError();
<a name="l00081"></a>00081 <span class="keywordflow">if</span> (!SafeConvert(lw, length))
<a name="l00082"></a>00082 BERDecodeError();
<a name="l00083"></a>00083 <span class="keywordflow">return</span> definiteLength;
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="keywordtype">void</span> DEREncodeNull(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &out)
<a name="l00087"></a>00087 {
<a name="l00088"></a>00088 out.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(TAG_NULL);
<a name="l00089"></a>00089 out.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(0);
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="keywordtype">void</span> BERDecodeNull(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &in)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 byte b;
<a name="l00095"></a>00095 <span class="keywordflow">if</span> (!in.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != TAG_NULL)
<a name="l00096"></a>00096 BERDecodeError();
<a name="l00097"></a>00097 <span class="keywordtype">size_t</span> length;
<a name="l00098"></a>00098 <span class="keywordflow">if</span> (!BERLengthDecode(in, length) || length != 0)
<a name="l00099"></a>00099 BERDecodeError();
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101 <span class="comment"></span>
<a name="l00102"></a>00102 <span class="comment">/// ASN Strings</span>
<a name="l00103"></a>00103 <span class="comment"></span><span class="keywordtype">size_t</span> DEREncodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <span class="keyword">const</span> byte *str, <span class="keywordtype">size_t</span> strLen)
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(OCTET_STRING);
<a name="l00106"></a>00106 <span class="keywordtype">size_t</span> lengthBytes = DERLengthEncode(bt, strLen);
<a name="l00107"></a>00107 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(str, strLen);
<a name="l00108"></a>00108 <span class="keywordflow">return</span> 1+lengthBytes+strLen;
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keywordtype">size_t</span> DEREncodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> &str)
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 <span class="keywordflow">return</span> DEREncodeOctetString(bt, str.begin(), str.size());
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115
<a name="l00116"></a>00116 <span class="keywordtype">size_t</span> BERDecodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> &str)
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 byte b;
<a name="l00119"></a>00119 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != OCTET_STRING)
<a name="l00120"></a>00120 BERDecodeError();
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keywordtype">size_t</span> bc;
<a name="l00123"></a>00123 <span class="keywordflow">if</span> (!BERLengthDecode(bt, bc))
<a name="l00124"></a>00124 BERDecodeError();
<a name="l00125"></a>00125
<a name="l00126"></a>00126 str.<a class="code" href="class_sec_block.html#af9e98d3f4a7af1156fcf3e6e68f4ae5a" title="change size and preserve contents">resize</a>(bc);
<a name="l00127"></a>00127 <span class="keywordflow">if</span> (bc != bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(str, bc))
<a name="l00128"></a>00128 BERDecodeError();
<a name="l00129"></a>00129 <span class="keywordflow">return</span> bc;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keywordtype">size_t</span> BERDecodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &str)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 byte b;
<a name="l00135"></a>00135 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != OCTET_STRING)
<a name="l00136"></a>00136 BERDecodeError();
<a name="l00137"></a>00137
<a name="l00138"></a>00138 <span class="keywordtype">size_t</span> bc;
<a name="l00139"></a>00139 <span class="keywordflow">if</span> (!BERLengthDecode(bt, bc))
<a name="l00140"></a>00140 BERDecodeError();
<a name="l00141"></a>00141
<a name="l00142"></a>00142 bt.<a class="code" href="class_buffered_transformation.html#ac31ac5d2da7897fb097086496b85e6f5" title="move transferMax bytes of the buffered output to target as input">TransferTo</a>(str, bc);
<a name="l00143"></a>00143 <span class="keywordflow">return</span> bc;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keywordtype">size_t</span> DEREncodeTextString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <span class="keyword">const</span> std::string &str, byte asnTag)
<a name="l00147"></a>00147 {
<a name="l00148"></a>00148 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(asnTag);
<a name="l00149"></a>00149 <span class="keywordtype">size_t</span> lengthBytes = DERLengthEncode(bt, str.size());
<a name="l00150"></a>00150 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>((<span class="keyword">const</span> byte *)str.data(), str.size());
<a name="l00151"></a>00151 <span class="keywordflow">return</span> 1+lengthBytes+str.size();
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keywordtype">size_t</span> BERDecodeTextString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, std::string &str, byte asnTag)
<a name="l00155"></a>00155 {
<a name="l00156"></a>00156 byte b;
<a name="l00157"></a>00157 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != asnTag)
<a name="l00158"></a>00158 BERDecodeError();
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="keywordtype">size_t</span> bc;
<a name="l00161"></a>00161 <span class="keywordflow">if</span> (!BERLengthDecode(bt, bc))
<a name="l00162"></a>00162 BERDecodeError();
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> temp(bc);
<a name="l00165"></a>00165 <span class="keywordflow">if</span> (bc != bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(temp, bc))
<a name="l00166"></a>00166 BERDecodeError();
<a name="l00167"></a>00167 str.assign((<span class="keywordtype">char</span> *)temp.begin(), bc);
<a name="l00168"></a>00168 <span class="keywordflow">return</span> bc;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170 <span class="comment"></span>
<a name="l00171"></a>00171 <span class="comment">/// ASN BitString</span>
<a name="l00172"></a>00172 <span class="comment"></span><span class="keywordtype">size_t</span> DEREncodeBitString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <span class="keyword">const</span> byte *str, <span class="keywordtype">size_t</span> strLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> unusedBits)
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(BIT_STRING);
<a name="l00175"></a>00175 <span class="keywordtype">size_t</span> lengthBytes = DERLengthEncode(bt, strLen+1);
<a name="l00176"></a>00176 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>((byte)unusedBits);
<a name="l00177"></a>00177 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(str, strLen);
<a name="l00178"></a>00178 <span class="keywordflow">return</span> 2+lengthBytes+strLen;
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="keywordtype">size_t</span> BERDecodeBitString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> &str, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &unusedBits)
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183 byte b;
<a name="l00184"></a>00184 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != BIT_STRING)
<a name="l00185"></a>00185 BERDecodeError();
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordtype">size_t</span> bc;
<a name="l00188"></a>00188 <span class="keywordflow">if</span> (!BERLengthDecode(bt, bc))
<a name="l00189"></a>00189 BERDecodeError();
<a name="l00190"></a>00190
<a name="l00191"></a>00191 byte unused;
<a name="l00192"></a>00192 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(unused))
<a name="l00193"></a>00193 BERDecodeError();
<a name="l00194"></a>00194 unusedBits = unused;
<a name="l00195"></a>00195 str.<a class="code" href="class_sec_block.html#af9e98d3f4a7af1156fcf3e6e68f4ae5a" title="change size and preserve contents">resize</a>(bc-1);
<a name="l00196"></a>00196 <span class="keywordflow">if</span> ((bc-1) != bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(str, bc-1))
<a name="l00197"></a>00197 BERDecodeError();
<a name="l00198"></a>00198 <span class="keywordflow">return</span> bc-1;
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="keywordtype">void</span> DERReencode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &source, <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &dest)
<a name="l00202"></a>00202 {
<a name="l00203"></a>00203 byte tag;
<a name="l00204"></a>00204 source.<a class="code" href="class_buffered_transformation.html#a5fa048faf8c043ad57ae0a8911070090" title="peek at the next byte without removing it from the output buffer">Peek</a>(tag);
<a name="l00205"></a>00205 <a class="code" href="class_b_e_r_general_decoder.html" title="BER General Decoder.">BERGeneralDecoder</a> decoder(source, tag);
<a name="l00206"></a>00206 <a class="code" href="class_d_e_r_general_encoder.html" title="DER General Encoder.">DERGeneralEncoder</a> encoder(dest, tag);
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (decoder.IsDefiniteLength())
<a name="l00208"></a>00208 decoder.TransferTo(encoder, decoder.RemainingLength());
<a name="l00209"></a>00209 <span class="keywordflow">else</span>
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 <span class="keywordflow">while</span> (!decoder.EndReached())
<a name="l00212"></a>00212 DERReencode(decoder, encoder);
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214 decoder.MessageEnd();
<a name="l00215"></a>00215 encoder.MessageEnd();
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a>00218 <span class="keywordtype">void</span> OID::EncodeValue(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, word32 v)
<a name="l00219"></a>00219 {
<a name="l00220"></a>00220 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=RoundUpToMultipleOf(STDMAX(7U,BitPrecision(v)), 7U)-7; i != 0; i-=7)
<a name="l00221"></a>00221 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>((byte)(0x80 | ((v >> i) & 0x7f)));
<a name="l00222"></a>00222 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>((byte)(v & 0x7f));
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="keywordtype">size_t</span> OID::DecodeValue(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, word32 &v)
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 byte b;
<a name="l00228"></a>00228 <span class="keywordtype">size_t</span> i=0;
<a name="l00229"></a>00229 v = 0;
<a name="l00230"></a>00230 <span class="keywordflow">while</span> (<span class="keyword">true</span>)
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b))
<a name="l00233"></a>00233 BERDecodeError();
<a name="l00234"></a>00234 i++;
<a name="l00235"></a>00235 <span class="keywordflow">if</span> (v >> (8*<span class="keyword">sizeof</span>(v)-7)) <span class="comment">// v about to overflow</span>
<a name="l00236"></a>00236 BERDecodeError();
<a name="l00237"></a>00237 v <<= 7;
<a name="l00238"></a>00238 v += b & 0x7f;
<a name="l00239"></a>00239 <span class="keywordflow">if</span> (!(b & 0x80))
<a name="l00240"></a>00240 <span class="keywordflow">return</span> i;
<a name="l00241"></a>00241 }
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordtype">void</span> OID::DEREncode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<span class="keyword"> const</span>
<a name="l00245"></a>00245 <span class="keyword"></span>{
<a name="l00246"></a>00246 assert(m_values.size() >= 2);
<a name="l00247"></a>00247 <a class="code" href="class_byte_queue.html" title="Byte Queue.">ByteQueue</a> temp;
<a name="l00248"></a>00248 temp.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(byte(m_values[0] * 40 + m_values[1]));
<a name="l00249"></a>00249 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=2; i<m_values.size(); i++)
<a name="l00250"></a>00250 EncodeValue(temp, m_values[i]);
<a name="l00251"></a>00251 bt.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(OBJECT_IDENTIFIER);
<a name="l00252"></a>00252 DERLengthEncode(bt, temp.CurrentSize());
<a name="l00253"></a>00253 temp.TransferTo(bt);
<a name="l00254"></a>00254 }
<a name="l00255"></a>00255
<a name="l00256"></a>00256 <span class="keywordtype">void</span> OID::BERDecode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)
<a name="l00257"></a>00257 {
<a name="l00258"></a>00258 byte b;
<a name="l00259"></a>00259 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != OBJECT_IDENTIFIER)
<a name="l00260"></a>00260 BERDecodeError();
<a name="l00261"></a>00261
<a name="l00262"></a>00262 <span class="keywordtype">size_t</span> length;
<a name="l00263"></a>00263 <span class="keywordflow">if</span> (!BERLengthDecode(bt, length) || length < 1)
<a name="l00264"></a>00264 BERDecodeError();
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="keywordflow">if</span> (!bt.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b))
<a name="l00267"></a>00267 BERDecodeError();
<a name="l00268"></a>00268
<a name="l00269"></a>00269 length--;
<a name="l00270"></a>00270 m_values.resize(2);
<a name="l00271"></a>00271 m_values[0] = b / 40;
<a name="l00272"></a>00272 m_values[1] = b % 40;
<a name="l00273"></a>00273
<a name="l00274"></a>00274 <span class="keywordflow">while</span> (length > 0)
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 word32 v;
<a name="l00277"></a>00277 <span class="keywordtype">size_t</span> valueLen = DecodeValue(bt, v);
<a name="l00278"></a>00278 <span class="keywordflow">if</span> (valueLen > length)
<a name="l00279"></a>00279 BERDecodeError();
<a name="l00280"></a>00280 m_values.push_back(v);
<a name="l00281"></a>00281 length -= valueLen;
<a name="l00282"></a>00282 }
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284
<a name="l00285"></a>00285 <span class="keywordtype">void</span> OID::BERDecodeAndCheck(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<span class="keyword"> const</span>
<a name="l00286"></a>00286 <span class="keyword"></span>{
<a name="l00287"></a>00287 <a class="code" href="class_o_i_d.html" title="Object Identifier.">OID</a> oid(bt);
<a name="l00288"></a>00288 <span class="keywordflow">if</span> (*<span class="keyword">this</span> != oid)
<a name="l00289"></a>00289 BERDecodeError();
<a name="l00290"></a>00290 }
<a name="l00291"></a>00291
<a name="l00292"></a>00292 <span class="keyword">inline</span> <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> & EncodedObjectFilter::CurrentTarget()
<a name="l00293"></a>00293 {
<a name="l00294"></a>00294 <span class="keywordflow">if</span> (m_flags & PUT_OBJECTS)
<a name="l00295"></a>00295 <span class="keywordflow">return</span> *<a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93" title="returns the object immediately attached to this object or NULL for no attachment">AttachedTransformation</a>();
<a name="l00296"></a>00296 <span class="keywordflow">else</span>
<a name="l00297"></a>00297 <span class="keywordflow">return</span> TheBitBucket();
<a name="l00298"></a>00298 }
<a name="l00299"></a>00299
<a name="l00300"></a>00300 <span class="keywordtype">void</span> EncodedObjectFilter::Put(<span class="keyword">const</span> byte *inString, <span class="keywordtype">size_t</span> length)
<a name="l00301"></a>00301 {
<a name="l00302"></a>00302 <span class="keywordflow">if</span> (m_nCurrentObject == m_nObjects)
<a name="l00303"></a>00303 {
<a name="l00304"></a>00304 <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93" title="returns the object immediately attached to this object or NULL for no attachment">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(inString, length);
<a name="l00305"></a>00305 <span class="keywordflow">return</span>;
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <a class="code" href="class_lazy_putter.html" title="use this to make sure LazyPut is finalized in event of exception">LazyPutter</a> lazyPutter(m_queue, inString, length);
<a name="l00309"></a>00309
<a name="l00310"></a>00310 <span class="keywordflow">while</span> (m_queue.<a class="code" href="class_byte_queue.html#a9f509e02fb4b1f1587d6b5a001ff43f7" title="returns whether any bytes are currently ready for retrieval">AnyRetrievable</a>())
<a name="l00311"></a>00311 {
<a name="l00312"></a>00312 <span class="keywordflow">switch</span> (m_state)
<a name="l00313"></a>00313 {
<a name="l00314"></a>00314 <span class="keywordflow">case</span> IDENTIFIER:
<a name="l00315"></a>00315 <span class="keywordflow">if</span> (!m_queue.<a class="code" href="class_byte_queue.html#a19413e3aa72b749e3771d617e8eca632" title="try to retrieve a single byte">Get</a>(m_id))
<a name="l00316"></a>00316 <span class="keywordflow">return</span>;
<a name="l00317"></a>00317 m_queue.<a class="code" href="class_buffered_transformation.html#ac31ac5d2da7897fb097086496b85e6f5" title="move transferMax bytes of the buffered output to target as input">TransferTo</a>(CurrentTarget(), 1);
<a name="l00318"></a>00318 m_state = LENGTH; <span class="comment">// fall through</span>
<a name="l00319"></a>00319 <span class="keywordflow">case</span> LENGTH:
<a name="l00320"></a>00320 {
<a name="l00321"></a>00321 byte b;
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (m_level > 0 && m_id == 0 && m_queue.<a class="code" href="class_byte_queue.html#a67e9cc7f56a2be014ee4c9f033bb2ada" title="peek at the next byte without removing it from the output buffer">Peek</a>(b) && b == 0)
<a name="l00323"></a>00323 {
<a name="l00324"></a>00324 m_queue.<a class="code" href="class_buffered_transformation.html#ac31ac5d2da7897fb097086496b85e6f5" title="move transferMax bytes of the buffered output to target as input">TransferTo</a>(CurrentTarget(), 1);
<a name="l00325"></a>00325 m_level--;
<a name="l00326"></a>00326 m_state = IDENTIFIER;
<a name="l00327"></a>00327 <span class="keywordflow">break</span>;
<a name="l00328"></a>00328 }
<a name="l00329"></a>00329 <a class="code" href="class_byte_queue_1_1_walker.html">ByteQueue::Walker</a> walker(m_queue);
<a name="l00330"></a>00330 <span class="keywordtype">bool</span> definiteLength;
<a name="l00331"></a>00331 <span class="keywordflow">if</span> (!BERLengthDecode(walker, m_lengthRemaining, definiteLength))
<a name="l00332"></a>00332 <span class="keywordflow">return</span>;
<a name="l00333"></a>00333 m_queue.<a class="code" href="class_buffered_transformation.html#ac31ac5d2da7897fb097086496b85e6f5" title="move transferMax bytes of the buffered output to target as input">TransferTo</a>(CurrentTarget(), walker.GetCurrentPosition());
<a name="l00334"></a>00334 <span class="keywordflow">if</span> (!((m_id & CONSTRUCTED) || definiteLength))
<a name="l00335"></a>00335 BERDecodeError();
<a name="l00336"></a>00336 <span class="keywordflow">if</span> (!definiteLength)
<a name="l00337"></a>00337 {
<a name="l00338"></a>00338 <span class="keywordflow">if</span> (!(m_id & CONSTRUCTED))
<a name="l00339"></a>00339 BERDecodeError();
<a name="l00340"></a>00340 m_level++;
<a name="l00341"></a>00341 m_state = IDENTIFIER;
<a name="l00342"></a>00342 <span class="keywordflow">break</span>;
<a name="l00343"></a>00343 }
<a name="l00344"></a>00344 m_state = BODY; <span class="comment">// fall through</span>
<a name="l00345"></a>00345 }
<a name="l00346"></a>00346 <span class="keywordflow">case</span> BODY:
<a name="l00347"></a>00347 m_lengthRemaining -= m_queue.<a class="code" href="class_buffered_transformation.html#ac31ac5d2da7897fb097086496b85e6f5" title="move transferMax bytes of the buffered output to target as input">TransferTo</a>(CurrentTarget(), m_lengthRemaining);
<a name="l00348"></a>00348
<a name="l00349"></a>00349 <span class="keywordflow">if</span> (m_lengthRemaining == 0)
<a name="l00350"></a>00350 m_state = IDENTIFIER;
<a name="l00351"></a>00351 }
<a name="l00352"></a>00352
<a name="l00353"></a>00353 <span class="keywordflow">if</span> (m_state == IDENTIFIER && m_level == 0)
<a name="l00354"></a>00354 {
<a name="l00355"></a>00355 <span class="comment">// just finished processing a level 0 object</span>
<a name="l00356"></a>00356 ++m_nCurrentObject;
<a name="l00357"></a>00357
<a name="l00358"></a>00358 <span class="keywordflow">if</span> (m_flags & PUT_MESSANGE_END_AFTER_EACH_OBJECT)
<a name="l00359"></a>00359 <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93" title="returns the object immediately attached to this object or NULL for no attachment">AttachedTransformation</a>()->MessageEnd();
<a name="l00360"></a>00360
<a name="l00361"></a>00361 <span class="keywordflow">if</span> (m_nCurrentObject == m_nObjects)
<a name="l00362"></a>00362 {
<a name="l00363"></a>00363 <span class="keywordflow">if</span> (m_flags & PUT_MESSANGE_END_AFTER_ALL_OBJECTS)
<a name="l00364"></a>00364 <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93" title="returns the object immediately attached to this object or NULL for no attachment">AttachedTransformation</a>()->MessageEnd();
<a name="l00365"></a>00365
<a name="l00366"></a>00366 <span class="keywordflow">if</span> (m_flags & PUT_MESSANGE_SERIES_END_AFTER_ALL_OBJECTS)
<a name="l00367"></a>00367 <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93" title="returns the object immediately attached to this object or NULL for no attachment">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#aae4c5ae024419e31bfa0c24eb35b24c2" title="mark end of a series of messages">MessageSeriesEnd</a>();
<a name="l00368"></a>00368
<a name="l00369"></a>00369 m_queue.TransferAllTo(*<a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93" title="returns the object immediately attached to this object or NULL for no attachment">AttachedTransformation</a>());
<a name="l00370"></a>00370 <span class="keywordflow">return</span>;
<a name="l00371"></a>00371 }
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373 }
<a name="l00374"></a>00374 }
<a name="l00375"></a>00375
<a name="l00376"></a>00376 BERGeneralDecoder::BERGeneralDecoder(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &inQueue, byte asnTag)
<a name="l00377"></a>00377 : m_inQueue(inQueue), m_finished(false)
<a name="l00378"></a>00378 {
<a name="l00379"></a>00379 Init(asnTag);
<a name="l00380"></a>00380 }
<a name="l00381"></a>00381
<a name="l00382"></a>00382 BERGeneralDecoder::BERGeneralDecoder(<a class="code" href="class_b_e_r_general_decoder.html" title="BER General Decoder.">BERGeneralDecoder</a> &inQueue, byte asnTag)
<a name="l00383"></a>00383 : m_inQueue(inQueue), m_finished(false)
<a name="l00384"></a>00384 {
<a name="l00385"></a>00385 Init(asnTag);
<a name="l00386"></a>00386 }
<a name="l00387"></a>00387
<a name="l00388"></a>00388 <span class="keywordtype">void</span> BERGeneralDecoder::Init(byte asnTag)
<a name="l00389"></a>00389 {
<a name="l00390"></a>00390 byte b;
<a name="l00391"></a>00391 <span class="keywordflow">if</span> (!m_inQueue.<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != asnTag)
<a name="l00392"></a>00392 BERDecodeError();
<a name="l00393"></a>00393
<a name="l00394"></a>00394 <span class="keywordflow">if</span> (!BERLengthDecode(m_inQueue, m_length, m_definiteLength))
<a name="l00395"></a>00395 BERDecodeError();
<a name="l00396"></a>00396
<a name="l00397"></a>00397 <span class="keywordflow">if</span> (!m_definiteLength && !(asnTag & CONSTRUCTED))
<a name="l00398"></a>00398 BERDecodeError(); <span class="comment">// cannot be primitive and have indefinite length</span>
<a name="l00399"></a>00399 }
<a name="l00400"></a>00400
<a name="l00401"></a>00401 BERGeneralDecoder::~BERGeneralDecoder()
<a name="l00402"></a>00402 {
<a name="l00403"></a>00403 <span class="keywordflow">try</span> <span class="comment">// avoid throwing in constructor</span>
<a name="l00404"></a>00404 {
<a name="l00405"></a>00405 <span class="keywordflow">if</span> (!m_finished)
<a name="l00406"></a>00406 MessageEnd();
<a name="l00407"></a>00407 }
<a name="l00408"></a>00408 <span class="keywordflow">catch</span> (...)
<a name="l00409"></a>00409 {
<a name="l00410"></a>00410 }
<a name="l00411"></a>00411 }
<a name="l00412"></a>00412
<a name="l00413"></a>00413 <span class="keywordtype">bool</span> BERGeneralDecoder::EndReached()<span class="keyword"> const</span>
<a name="l00414"></a>00414 <span class="keyword"></span>{
<a name="l00415"></a>00415 <span class="keywordflow">if</span> (m_definiteLength)
<a name="l00416"></a>00416 <span class="keywordflow">return</span> m_length == 0;
<a name="l00417"></a>00417 <span class="keywordflow">else</span>
<a name="l00418"></a>00418 { <span class="comment">// check end-of-content octets</span>
<a name="l00419"></a>00419 word16 i;
<a name="l00420"></a>00420 <span class="keywordflow">return</span> (m_inQueue.<a class="code" href="class_buffered_transformation.html#a452057f0d887ba0f2b6ec5373e290e91" title="try to peek at a 16-bit word">PeekWord16</a>(i)==2 && i==0);
<a name="l00421"></a>00421 }
<a name="l00422"></a>00422 }
<a name="l00423"></a>00423
<a name="l00424"></a>00424 byte BERGeneralDecoder::PeekByte()<span class="keyword"> const</span>
<a name="l00425"></a>00425 <span class="keyword"></span>{
<a name="l00426"></a>00426 byte b;
<a name="l00427"></a>00427 <span class="keywordflow">if</span> (!<a class="code" href="class_buffered_transformation.html#a5fa048faf8c043ad57ae0a8911070090" title="peek at the next byte without removing it from the output buffer">Peek</a>(b))
<a name="l00428"></a>00428 BERDecodeError();
<a name="l00429"></a>00429 <span class="keywordflow">return</span> b;
<a name="l00430"></a>00430 }
<a name="l00431"></a>00431
<a name="l00432"></a>00432 <span class="keywordtype">void</span> BERGeneralDecoder::CheckByte(byte check)
<a name="l00433"></a>00433 {
<a name="l00434"></a>00434 byte b;
<a name="l00435"></a>00435 <span class="keywordflow">if</span> (!<a class="code" href="class_buffered_transformation.html#a9e1ad913c8fe697d269f408a7d5928fc" title="try to retrieve a single byte">Get</a>(b) || b != check)
<a name="l00436"></a>00436 BERDecodeError();
<a name="l00437"></a>00437 }
<a name="l00438"></a>00438
<a name="l00439"></a>00439 <span class="keywordtype">void</span> BERGeneralDecoder::MessageEnd()
<a name="l00440"></a>00440 {
<a name="l00441"></a>00441 m_finished = <span class="keyword">true</span>;
<a name="l00442"></a>00442 <span class="keywordflow">if</span> (m_definiteLength)
<a name="l00443"></a>00443 {
<a name="l00444"></a>00444 <span class="keywordflow">if</span> (m_length != 0)
<a name="l00445"></a>00445 BERDecodeError();
<a name="l00446"></a>00446 }
<a name="l00447"></a>00447 <span class="keywordflow">else</span>
<a name="l00448"></a>00448 { <span class="comment">// remove end-of-content octets</span>
<a name="l00449"></a>00449 word16 i;
<a name="l00450"></a>00450 <span class="keywordflow">if</span> (m_inQueue.<a class="code" href="class_buffered_transformation.html#a1ac50bcb2d279c3c6aef6858dab3eeb7" title="try to retrieve a 16-bit word">GetWord16</a>(i) != 2 || i != 0)
<a name="l00451"></a>00451 BERDecodeError();
<a name="l00452"></a>00452 }
<a name="l00453"></a>00453 }
<a name="l00454"></a>00454
<a name="l00455"></a><a class="code" href="class_b_e_r_general_decoder.html#a52f64e5904cbdddea92dfcff67d4cc7a">00455</a> <span class="keywordtype">size_t</span> <a class="code" href="class_b_e_r_general_decoder.html#a52f64e5904cbdddea92dfcff67d4cc7a" title="upon return, byteCount contains number of bytes that have finished being transfered, and returns the number of bytes left in the current transfer block">BERGeneralDecoder::TransferTo2</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &target, lword &transferBytes, <span class="keyword">const</span> std::string &channel, <span class="keywordtype">bool</span> blocking)
<a name="l00456"></a>00456 {
<a name="l00457"></a>00457 <span class="keywordflow">if</span> (m_definiteLength && transferBytes > m_length)
<a name="l00458"></a>00458 transferBytes = m_length;
<a name="l00459"></a>00459 <span class="keywordtype">size_t</span> blockedBytes = m_inQueue.<a class="code" href="class_buffered_transformation.html#a27ac15af3ef43c5ad1e9db5812025fcd" title="upon return, byteCount contains number of bytes that have finished being transfered, and returns the number of bytes left in the current transfer block">TransferTo2</a>(target, transferBytes, channel, blocking);
<a name="l00460"></a>00460 ReduceLength(transferBytes);
<a name="l00461"></a>00461 <span class="keywordflow">return</span> blockedBytes;
<a name="l00462"></a>00462 }
<a name="l00463"></a>00463
<a name="l00464"></a><a class="code" href="class_b_e_r_general_decoder.html#ae71aadf007b2f1c13c3bf830f6266e61">00464</a> <span class="keywordtype">size_t</span> <a class="code" href="class_b_e_r_general_decoder.html#ae71aadf007b2f1c13c3bf830f6266e61" title="upon return, begin contains the start position of data yet to be finished copying, and returns the number of bytes left in the current transfer block">BERGeneralDecoder::CopyRangeTo2</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &target, lword &begin, lword end, <span class="keyword">const</span> std::string &channel, <span class="keywordtype">bool</span> blocking)<span class="keyword"> const</span>
<a name="l00465"></a>00465 <span class="keyword"></span>{
<a name="l00466"></a>00466 <span class="keywordflow">if</span> (m_definiteLength)
<a name="l00467"></a>00467 end = STDMIN(m_length, end);
<a name="l00468"></a>00468 <span class="keywordflow">return</span> m_inQueue.<a class="code" href="class_buffered_transformation.html#a7f90ef36f633c97c1ae519b800527d8e" title="upon return, begin contains the start position of data yet to be finished copying, and returns the number of bytes left in the current transfer block">CopyRangeTo2</a>(target, begin, end, channel, blocking);
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470
<a name="l00471"></a>00471 lword BERGeneralDecoder::ReduceLength(lword delta)
<a name="l00472"></a>00472 {
<a name="l00473"></a>00473 <span class="keywordflow">if</span> (m_definiteLength)
<a name="l00474"></a>00474 {
<a name="l00475"></a>00475 <span class="keywordflow">if</span> (m_length < delta)
<a name="l00476"></a>00476 BERDecodeError();
<a name="l00477"></a>00477 m_length -= delta;
<a name="l00478"></a>00478 }
<a name="l00479"></a>00479 <span class="keywordflow">return</span> delta;
<a name="l00480"></a>00480 }
<a name="l00481"></a>00481
<a name="l00482"></a>00482 DERGeneralEncoder::DERGeneralEncoder(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &outQueue, byte asnTag)
<a name="l00483"></a>00483 : m_outQueue(outQueue), m_finished(false), m_asnTag(asnTag)
<a name="l00484"></a>00484 {
<a name="l00485"></a>00485 }
<a name="l00486"></a>00486
<a name="l00487"></a>00487 DERGeneralEncoder::DERGeneralEncoder(<a class="code" href="class_d_e_r_general_encoder.html" title="DER General Encoder.">DERGeneralEncoder</a> &outQueue, byte asnTag)
<a name="l00488"></a>00488 : m_outQueue(outQueue), m_finished(false), m_asnTag(asnTag)
<a name="l00489"></a>00489 {
<a name="l00490"></a>00490 }
<a name="l00491"></a>00491
<a name="l00492"></a>00492 DERGeneralEncoder::~DERGeneralEncoder()
<a name="l00493"></a>00493 {
<a name="l00494"></a>00494 <span class="keywordflow">try</span> <span class="comment">// avoid throwing in constructor</span>
<a name="l00495"></a>00495 {
<a name="l00496"></a>00496 <span class="keywordflow">if</span> (!m_finished)
<a name="l00497"></a>00497 MessageEnd();
<a name="l00498"></a>00498 }
<a name="l00499"></a>00499 <span class="keywordflow">catch</span> (...)
<a name="l00500"></a>00500 {
<a name="l00501"></a>00501 }
<a name="l00502"></a>00502 }
<a name="l00503"></a>00503
<a name="l00504"></a>00504 <span class="keywordtype">void</span> DERGeneralEncoder::MessageEnd()
<a name="l00505"></a>00505 {
<a name="l00506"></a>00506 m_finished = <span class="keyword">true</span>;
<a name="l00507"></a>00507 lword length = CurrentSize();
<a name="l00508"></a>00508 m_outQueue.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(m_asnTag);
<a name="l00509"></a>00509 DERLengthEncode(m_outQueue, length);
<a name="l00510"></a>00510 <a class="code" href="class_buffered_transformation.html#ac31ac5d2da7897fb097086496b85e6f5" title="move transferMax bytes of the buffered output to target as input">TransferTo</a>(m_outQueue);
<a name="l00511"></a>00511 }
<a name="l00512"></a>00512
<a name="l00513"></a>00513 <span class="comment">// *************************************************************</span>
<a name="l00514"></a>00514
<a name="l00515"></a><a class="code" href="class_x509_public_key.html#a4eb86b0b55185f10a13ff7e1b083a67b">00515</a> <span class="keywordtype">void</span> <a class="code" href="class_x509_public_key.html#a4eb86b0b55185f10a13ff7e1b083a67b" title="decode this object from a BufferedTransformation, using BER (Basic Encoding Rules)">X509PublicKey::BERDecode</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)
<a name="l00516"></a>00516 {
<a name="l00517"></a>00517 <a class="code" href="class_b_e_r_sequence_decoder.html" title="BER Sequence Decoder.">BERSequenceDecoder</a> subjectPublicKeyInfo(bt);
<a name="l00518"></a>00518 <a class="code" href="class_b_e_r_sequence_decoder.html" title="BER Sequence Decoder.">BERSequenceDecoder</a> algorithm(subjectPublicKeyInfo);
<a name="l00519"></a>00519 GetAlgorithmID().BERDecodeAndCheck(algorithm);
<a name="l00520"></a>00520 <span class="keywordtype">bool</span> parametersPresent = algorithm.EndReached() ? <span class="keyword">false</span> : BERDecodeAlgorithmParameters(algorithm);
<a name="l00521"></a>00521 algorithm.MessageEnd();
<a name="l00522"></a>00522
<a name="l00523"></a>00523 <a class="code" href="class_b_e_r_general_decoder.html" title="BER General Decoder.">BERGeneralDecoder</a> subjectPublicKey(subjectPublicKeyInfo, BIT_STRING);
<a name="l00524"></a>00524 subjectPublicKey.CheckByte(0); <span class="comment">// unused bits</span>
<a name="l00525"></a>00525 <a class="code" href="class_x509_public_key.html#a3c60ac987c0d3c6aa537155946729c51" title="decode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header">BERDecodePublicKey</a>(subjectPublicKey, parametersPresent, (<span class="keywordtype">size_t</span>)subjectPublicKey.RemainingLength());
<a name="l00526"></a>00526 subjectPublicKey.MessageEnd();
<a name="l00527"></a>00527 subjectPublicKeyInfo.MessageEnd();
<a name="l00528"></a>00528 }
<a name="l00529"></a>00529
<a name="l00530"></a><a class="code" href="class_x509_public_key.html#adfd76c247053ce6f771411ea2b5a9ff5">00530</a> <span class="keywordtype">void</span> <a class="code" href="class_x509_public_key.html#adfd76c247053ce6f771411ea2b5a9ff5" title="encode this object into a BufferedTransformation, using DER (Distinguished Encoding Rules)...">X509PublicKey::DEREncode</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<span class="keyword"> const</span>
<a name="l00531"></a>00531 <span class="keyword"></span>{
<a name="l00532"></a>00532 <a class="code" href="class_d_e_r_sequence_encoder.html" title="DER Sequence Encoder.">DERSequenceEncoder</a> subjectPublicKeyInfo(bt);
<a name="l00533"></a>00533
<a name="l00534"></a>00534 <a class="code" href="class_d_e_r_sequence_encoder.html" title="DER Sequence Encoder.">DERSequenceEncoder</a> algorithm(subjectPublicKeyInfo);
<a name="l00535"></a>00535 GetAlgorithmID().DEREncode(algorithm);
<a name="l00536"></a>00536 DEREncodeAlgorithmParameters(algorithm);
<a name="l00537"></a>00537 algorithm.MessageEnd();
<a name="l00538"></a>00538
<a name="l00539"></a>00539 <a class="code" href="class_d_e_r_general_encoder.html" title="DER General Encoder.">DERGeneralEncoder</a> subjectPublicKey(subjectPublicKeyInfo, BIT_STRING);
<a name="l00540"></a>00540 subjectPublicKey.<a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(0); <span class="comment">// unused bits</span>
<a name="l00541"></a>00541 <a class="code" href="class_x509_public_key.html#aa8d06ad72e977bb175dabad152604d66" title="encode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header">DEREncodePublicKey</a>(subjectPublicKey);
<a name="l00542"></a>00542 subjectPublicKey.MessageEnd();
<a name="l00543"></a>00543
<a name="l00544"></a>00544 subjectPublicKeyInfo.MessageEnd();
<a name="l00545"></a>00545 }
<a name="l00546"></a>00546
<a name="l00547"></a><a class="code" href="class_p_k_c_s8_private_key.html#a9ffab1c1391e4faf356668d8e2cd7d32">00547</a> <span class="keywordtype">void</span> <a class="code" href="class_p_k_c_s8_private_key.html#a9ffab1c1391e4faf356668d8e2cd7d32" title="decode this object from a BufferedTransformation, using BER (Basic Encoding Rules)">PKCS8PrivateKey::BERDecode</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)
<a name="l00548"></a>00548 {
<a name="l00549"></a>00549 <a class="code" href="class_b_e_r_sequence_decoder.html" title="BER Sequence Decoder.">BERSequenceDecoder</a> privateKeyInfo(bt);
<a name="l00550"></a>00550 word32 version;
<a name="l00551"></a>00551 BERDecodeUnsigned<word32>(privateKeyInfo, version, INTEGER, 0, 0); <span class="comment">// check version</span>
<a name="l00552"></a>00552
<a name="l00553"></a>00553 <a class="code" href="class_b_e_r_sequence_decoder.html" title="BER Sequence Decoder.">BERSequenceDecoder</a> algorithm(privateKeyInfo);
<a name="l00554"></a>00554 GetAlgorithmID().BERDecodeAndCheck(algorithm);
<a name="l00555"></a>00555 <span class="keywordtype">bool</span> parametersPresent = algorithm.EndReached() ? <span class="keyword">false</span> : BERDecodeAlgorithmParameters(algorithm);
<a name="l00556"></a>00556 algorithm.MessageEnd();
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <a class="code" href="class_b_e_r_general_decoder.html" title="BER General Decoder.">BERGeneralDecoder</a> octetString(privateKeyInfo, OCTET_STRING);
<a name="l00559"></a>00559 <a class="code" href="class_p_k_c_s8_private_key.html#ab759ba85c01e99203f08da6084d61318" title="decode privateKey part of privateKeyInfo, without the OCTET STRING header">BERDecodePrivateKey</a>(octetString, parametersPresent, (<span class="keywordtype">size_t</span>)privateKeyInfo.RemainingLength());
<a name="l00560"></a>00560 octetString.MessageEnd();
<a name="l00561"></a>00561
<a name="l00562"></a>00562 <span class="keywordflow">if</span> (!privateKeyInfo.EndReached())
<a name="l00563"></a>00563 <a class="code" href="class_p_k_c_s8_private_key.html#a55301b3f97993d9bb2dd7dcf48f35aa6" title="decode optional attributes including context-specific tag">BERDecodeOptionalAttributes</a>(privateKeyInfo);
<a name="l00564"></a>00564 privateKeyInfo.MessageEnd();
<a name="l00565"></a>00565 }
<a name="l00566"></a>00566
<a name="l00567"></a><a class="code" href="class_p_k_c_s8_private_key.html#a83e4531f1f514441107a1f35274589b8">00567</a> <span class="keywordtype">void</span> <a class="code" href="class_p_k_c_s8_private_key.html#a83e4531f1f514441107a1f35274589b8" title="encode this object into a BufferedTransformation, using DER (Distinguished Encoding Rules)...">PKCS8PrivateKey::DEREncode</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<span class="keyword"> const</span>
<a name="l00568"></a>00568 <span class="keyword"></span>{
<a name="l00569"></a>00569 <a class="code" href="class_d_e_r_sequence_encoder.html" title="DER Sequence Encoder.">DERSequenceEncoder</a> privateKeyInfo(bt);
<a name="l00570"></a>00570 DEREncodeUnsigned<word32>(privateKeyInfo, 0); <span class="comment">// version</span>
<a name="l00571"></a>00571
<a name="l00572"></a>00572 <a class="code" href="class_d_e_r_sequence_encoder.html" title="DER Sequence Encoder.">DERSequenceEncoder</a> algorithm(privateKeyInfo);
<a name="l00573"></a>00573 GetAlgorithmID().DEREncode(algorithm);
<a name="l00574"></a>00574 DEREncodeAlgorithmParameters(algorithm);
<a name="l00575"></a>00575 algorithm.MessageEnd();
<a name="l00576"></a>00576
<a name="l00577"></a>00577 <a class="code" href="class_d_e_r_general_encoder.html" title="DER General Encoder.">DERGeneralEncoder</a> octetString(privateKeyInfo, OCTET_STRING);
<a name="l00578"></a>00578 <a class="code" href="class_p_k_c_s8_private_key.html#a4effc9a887bb955bca2ad6199b2abf89" title="encode privateKey part of privateKeyInfo, without the OCTET STRING header">DEREncodePrivateKey</a>(octetString);
<a name="l00579"></a>00579 octetString.MessageEnd();
<a name="l00580"></a>00580
<a name="l00581"></a>00581 <a class="code" href="class_p_k_c_s8_private_key.html#a0a32007edac3c3137ad0be6542402285" title="encode optional attributes including context-specific tag">DEREncodeOptionalAttributes</a>(privateKeyInfo);
<a name="l00582"></a>00582 privateKeyInfo.MessageEnd();
<a name="l00583"></a>00583 }
<a name="l00584"></a>00584
<a name="l00585"></a><a class="code" href="class_p_k_c_s8_private_key.html#a55301b3f97993d9bb2dd7dcf48f35aa6">00585</a> <span class="keywordtype">void</span> <a class="code" href="class_p_k_c_s8_private_key.html#a55301b3f97993d9bb2dd7dcf48f35aa6" title="decode optional attributes including context-specific tag">PKCS8PrivateKey::BERDecodeOptionalAttributes</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)
<a name="l00586"></a>00586 {
<a name="l00587"></a>00587 DERReencode(bt, m_optionalAttributes);
<a name="l00588"></a>00588 }
<a name="l00589"></a>00589
<a name="l00590"></a><a class="code" href="class_p_k_c_s8_private_key.html#a0a32007edac3c3137ad0be6542402285">00590</a> <span class="keywordtype">void</span> <a class="code" href="class_p_k_c_s8_private_key.html#a0a32007edac3c3137ad0be6542402285" title="encode optional attributes including context-specific tag">PKCS8PrivateKey::DEREncodeOptionalAttributes</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<span class="keyword"> const</span>
<a name="l00591"></a>00591 <span class="keyword"></span>{
<a name="l00592"></a>00592 m_optionalAttributes.<a class="code" href="class_buffered_transformation.html#a5253b8693ac9932f3862b71c9960903c" title="copy copyMax bytes of the buffered output to target as input">CopyTo</a>(bt);
<a name="l00593"></a>00593 }
<a name="l00594"></a>00594
<a name="l00595"></a>00595 NAMESPACE_END
<a name="l00596"></a>00596
<a name="l00597"></a>00597 <span class="preprocessor">#endif</span>
</pre></div></div>
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