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<div id="projectname">apt
 <span id="projectnumber">1.4.6</span>
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<div id="projectbrief">commandline package manager</div>
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<li class="navelem"><a class="el" href="dir_18f22d4be2ca84c350e120b6506056ca.xhtml">apt-pkg</a></li><li class="navelem"><a class="el" href="dir_c6ef23f15b074dcedf6810e24f2a7676.xhtml">contrib</a></li> </ul>
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<div class="title">md5.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// -*- mode: cpp; mode: fold -*-</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Description /*{{{*/</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// $Id: md5.h,v 1.6 2001/05/07 05:06:52 jgg Exp $</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/* ######################################################################</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> </span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> MD5SumValue - Storage for a MD5Sum</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> MD5Summation - MD5 Message Digest Algorithm.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> </span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> This is a C++ interface to a set of MD5Sum functions. The class can</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> store a MD5Sum in 16 bytes of memory.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> </span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> A MD5Sum is used to generate a (hopefully) unique 16 byte number for a</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> block of data. This can be used to guard against corruption of a file.</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> MD5 should not be used for tamper protection, use SHA or something more</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> secure.</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> </span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> There are two classes because computing a MD5 is not a continual </span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> operation unless 64 byte blocks are used. Also the summation requires an</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> extra 18*4 bytes to operate.</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> </span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> ##################################################################### */</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="comment">/*}}}*/</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef APTPKG_MD5_H</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#define APTPKG_MD5_H</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <stdint.h></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "hashsum_template.h"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#ifndef APT_10_CLEANER_HEADERS</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <cstring></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <algorithm></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#ifndef APT_8_CLEANER_HEADERS</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">using</span> std::string;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">using</span> std::min;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">typedef</span> <a class="code" href="classHashSumValue.xhtml">HashSumValue<128></a> <a class="code" href="classHashSumValue.xhtml">MD5SumValue</a>;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classMD5Summation.xhtml"> 42</a></span> <span class="keyword">class </span><a class="code" href="classMD5Summation.xhtml">MD5Summation</a> : <span class="keyword">public</span> <a class="code" href="classSummationImplementation.xhtml">SummationImplementation</a></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  uint32_t Buf[4];</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Bytes[2*4];</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> In[16*4];</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">bool</span> Done;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">bool</span> Add(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *inbuf, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> inlen) APT_OVERRIDE APT_NONNULL(2);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">using</span> SummationImplementation::Add;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="classHashSumValue.xhtml">MD5SumValue</a> Result();</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classMD5Summation.xhtml">MD5Summation</a>();</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> };</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classMD5Summation_xhtml"><div class="ttname"><a href="classMD5Summation.xhtml">MD5Summation</a></div><div class="ttdef"><b>Definition:</b> md5.h:42</div></div>
<div class="ttc" id="classSummationImplementation_xhtml"><div class="ttname"><a href="classSummationImplementation.xhtml">SummationImplementation</a></div><div class="ttdef"><b>Definition:</b> hashsum_template.h:122</div></div>
<div class="ttc" id="classHashSumValue_xhtml"><div class="ttname"><a href="classHashSumValue.xhtml">HashSumValue</a></div><div class="ttdef"><b>Definition:</b> hashsum_template.h:35</div></div>
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