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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=11"/> <meta name="generator" content="Doxygen 1.9.4"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>FreeTDS API: src/tds/sec_negotiate_gnutls.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr id="projectrow"> <td id="projectalign"> <div id="projectname">FreeTDS API </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.9.4 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ var searchBox = new SearchBox("searchBox", "search",'Search','.html'); /* @license-end */ </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); /* @license-end */ </script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_f7308370ebb9c2ff76f3bdfe0748aabf.html">tds</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"><div class="title">sec_negotiate_gnutls.h</div></div> </div><!--header--> <div class="contents"> <div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/* FreeTDS - Library of routines accessing Sybase and Microsoft databases</span></div> <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Copyright (C) 2015 Frediano Ziglio</span></div> <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> *</span></div> <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * This library is free software; you can redistribute it and/or</span></div> <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * modify it under the terms of the GNU Library General Public</span></div> <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * License as published by the Free Software Foundation; either</span></div> <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * version 2 of the License, or (at your option) any later version.</span></div> <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> *</span></div> <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * This library is distributed in the hope that it will be useful,</span></div> <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div> <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div> <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Library General Public License for more details.</span></div> <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> *</span></div> <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * You should have received a copy of the GNU Library General Public</span></div> <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * License along with this library; if not, write to the</span></div> <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330,</span></div> <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * Boston, MA 02111-1307, USA.</span></div> <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div> <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div> <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <gnutls/gnutls.h></span></div> <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <gnutls/crypto.h></span></div> <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#ifdef HAVE_GNUTLS_ABSTRACT_H</span></div> <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor"># include <gnutls/abstract.h></span></div> <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div> <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#if !defined(HAVE_NETTLE) || !defined(HAVE_GMP) || !defined(HAVE_GNUTLS_RND)</span></div> <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor"># include <gcrypt.h></span></div> <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div> <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#ifndef HAVE_NETTLE</span></div> <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor"># include <libtasn1.h></span></div> <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div> <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#ifdef HAVE_NETTLE</span></div> <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor"># include <nettle/asn1.h></span></div> <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor"># include <nettle/rsa.h></span></div> <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor"># include <nettle/bignum.h></span></div> <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div> <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="preprocessor">#ifndef HAVE_GNUTLS</span></div> <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="preprocessor">#error HAVE_GNUTLS not defines, this file should not be included</span></div> <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div> <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="comment">/* emulate GMP if not present */</span></div> <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="preprocessor">#ifndef HAVE_GMP</span></div> <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="preprocessor">#define HAVE_GMP 1</span></div> <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div> <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="a00750.html"> 59</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> gcry_mpi_t num;</div> <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span>} <a class="code hl_struct" href="a00750.html">mpz_t</a>[1];</div> <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div> <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="preprocessor">#define mpz_powm(w,n,e,m) \</span></div> <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="preprocessor"> gcry_mpi_powm((w)->num, (n)->num, (e)->num, (m)->num);</span></div> <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="preprocessor">#define mpz_init(n) do { (n)->num = NULL; } while(0)</span></div> <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="preprocessor">#define mpz_clear(n) gcry_mpi_release((n)->num)</span></div> <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div> <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div> <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div> <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="comment">/* emulate Nettle is not present */</span></div> <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="preprocessor">#ifndef HAVE_NETTLE</span></div> <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="preprocessor">#define HAVE_NETTLE 1</span></div> <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div> <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="keyword">typedef</span> <span class="keywordtype">void</span> nettle_random_func(<span class="keywordtype">void</span> *ctx, <span class="keywordtype">size_t</span> len, uint8_t *out);</div> <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div> <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span>nettle_mpz_set_str_256_u(<a class="code hl_struct" href="a00750.html">mpz_t</a> x, <span class="keywordtype">unsigned</span> length, <span class="keyword">const</span> uint8_t *s)</div> <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span>{</div> <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> gcry_mpi_scan(&x->num, GCRYMPI_FMT_USG, s, length, NULL);</div> <div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span>}</div> <div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> </div> <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span>nettle_mpz_get_str_256(<span class="keywordtype">unsigned</span> length, uint8_t *s, <span class="keyword">const</span> <a class="code hl_struct" href="a00750.html">mpz_t</a> x)</div> <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>{</div> <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> gcry_mpi_print(GCRYMPI_FMT_USG, s, length, NULL, x->num);</div> <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span>}</div> <div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div> <div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="a00754.html"> 89</a></span><span class="keyword">struct </span><a class="code hl_struct" href="a00754.html">asn1_der_iterator</a> {</div> <div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data, *data_end;</div> <div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> length;</div> <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> type;</div> <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span>};</div> <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div> <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span><span class="keyword">enum</span> asn1_iterator_result {</div> <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> ASN1_ITERATOR_ERROR,</div> <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> ASN1_ITERATOR_PRIMITIVE,</div> <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> ASN1_ITERATOR_CONSTRUCTED,</div> <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> ASN1_ITERATOR_END,</div> <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span>};</div> <div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div> <div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span><span class="keyword">enum</span> {</div> <div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> ASN1_SEQUENCE = ASN1_TAG_SEQUENCE,</div> <div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span>};</div> <div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div> <div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="keyword">static</span> <span class="keyword">enum</span> asn1_iterator_result</div> <div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span>asn1_der_iterator_next(<span class="keyword">struct</span> <a class="code hl_struct" href="a00754.html">asn1_der_iterator</a> *der)</div> <div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span>{</div> <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> cls;</div> <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> tag;</div> <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordtype">int</span> len;</div> <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordtype">long</span> l;</div> <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div> <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">if</span> (asn1_get_tag_der(der->data, der->data_end - der->data, &cls, &len, &tag) != ASN1_SUCCESS)</div> <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">return</span> ASN1_ITERATOR_ERROR;</div> <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> der->type = tag;</div> <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> der->data += len;</div> <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> l = asn1_get_length_der(der->data, der->data_end - der->data, &len);</div> <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">if</span> (l < 0)</div> <div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">return</span> ASN1_ITERATOR_ERROR;</div> <div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> der->data += len;</div> <div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> der->length = l;</div> <div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">if</span> (cls == ASN1_CLASS_STRUCTURED)</div> <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordflow">return</span> ASN1_ITERATOR_CONSTRUCTED;</div> <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">return</span> ASN1_ITERATOR_PRIMITIVE;</div> <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span>}</div> <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div> <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span><span class="keyword">static</span> <span class="keyword">enum</span> asn1_iterator_result</div> <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span>asn1_der_iterator_first(<span class="keyword">struct</span> <a class="code hl_struct" href="a00754.html">asn1_der_iterator</a> *der, <span class="keywordtype">int</span> size, <span class="keyword">const</span> <span class="keywordtype">void</span> *der_buf)</div> <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span>{</div> <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> der->data = (<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) der_buf;</div> <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> der->data_end = der->data + size;</div> <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div> <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">return</span> asn1_der_iterator_next(der);</div> <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span>}</div> <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div> <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"><a class="line" href="a00758.html"> 137</a></span><span class="keyword">struct </span><a class="code hl_struct" href="a00758.html">rsa_public_key</a> {</div> <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordtype">unsigned</span> size;</div> <div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <a class="code hl_struct" href="a00750.html">mpz_t</a> n, e;</div> <div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span>};</div> <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div> <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span>rsa_public_key_init(<span class="keyword">struct</span> <a class="code hl_struct" href="a00758.html">rsa_public_key</a> *key)</div> <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span>{</div> <div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> key->size = 0;</div> <div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> mpz_init(key->n);</div> <div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> mpz_init(key->e);</div> <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span>}</div> <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div> <div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span>rsa_public_key_clear(<span class="keyword">struct</span> <a class="code hl_struct" href="a00758.html">rsa_public_key</a> *key)</div> <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span>{</div> <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> mpz_clear(key->n);</div> <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> mpz_clear(key->e);</div> <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span>}</div> <div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> </div> <div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span>rsa_public_key_from_der_iterator(<span class="keyword">struct</span> <a class="code hl_struct" href="a00758.html">rsa_public_key</a> *key, <span class="keywordtype">unsigned</span> key_bits, <span class="keyword">struct</span> <a class="code hl_struct" href="a00754.html">asn1_der_iterator</a> *der)</div> <div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span>{</div> <div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">enum</span> asn1_iterator_result ret;</div> <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div> <div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> ret = asn1_der_iterator_next(der);</div> <div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">if</span> (ret != ASN1_ITERATOR_PRIMITIVE || der->type != ASN1_TAG_INTEGER)</div> <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">return</span> 0;</div> <div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> gcry_mpi_scan(&key->n->num, GCRYMPI_FMT_USG, der->data, der->length, NULL);</div> <div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> key->size = (gcry_mpi_get_nbits(key->n->num)+7)/8;</div> <div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> der->data += der->length;</div> <div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div> <div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> ret = asn1_der_iterator_next(der);</div> <div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">if</span> (ret != ASN1_ITERATOR_PRIMITIVE || der->type != ASN1_TAG_INTEGER)</div> <div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordflow">return</span> 0;</div> <div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> gcry_mpi_scan(&key->e->num, GCRYMPI_FMT_USG, der->data, der->length, NULL);</div> <div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div> <div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keywordflow">return</span> 1;</div> <div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span>}</div> <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div> <div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span>sha1(uint8_t *hash, <span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len)</div> <div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span>{</div> <div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> gcry_md_hash_buffer(GCRY_MD_SHA1, hash, data, len);</div> <div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>}</div> <div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span><span class="preprocessor">#else</span></div> <div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span>sha1(uint8_t *hash, <span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len)</div> <div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span>{</div> <div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keyword">struct </span>sha1_ctx ctx;</div> <div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> sha1_init(&ctx);</div> <div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> sha1_update(&ctx, len, (<span class="keyword">const</span> uint8_t *) data);</div> <div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> sha1_digest(&ctx, 20, hash);</div> <div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span>}</div> <div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> </div> <div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> </div> <div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span>rnd_func(<span class="keywordtype">void</span> *ctx, <span class="keywordtype">size_t</span> len, uint8_t * out)</div> <div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span>{</div> <div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> tds_random_buffer(out, len);</div> <div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span>}</div> <div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div> <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span><span class="preprocessor">#define dumpl(b,l) tdsdump_dump_buf(TDS_DBG_INFO1, #b, b, l)</span></div> <div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span><span class="preprocessor">#ifndef dumpl</span></div> <div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span><span class="preprocessor">#define dumpl(b,l) do {} while(0)</span></div> <div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span><span class="preprocessor">#define dump(b) dumpl(b, sizeof(b))</span></div> <div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> </div> <div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span><span class="comment">/* OAEP configuration parameters */</span></div> <div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span><span class="preprocessor">#define hash_func sha1</span></div> <div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span><span class="keyword">enum</span> { hash_len = 20 }; <span class="comment">/* sha1 length */</span></div> <div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span><span class="keyword">enum</span> { key_size_max = 1024 }; <span class="comment">/* max key in bytes */</span></div> <div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span><span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> label[] = <span class="stringliteral">""</span>;</div> <div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> </div> <div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span>memxor(uint8_t *dest, <span class="keyword">const</span> uint8_t *src, <span class="keywordtype">size_t</span> len)</div> <div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span>{</div> <div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordtype">size_t</span> n;</div> <div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">for</span> (n = 0; n < len; ++n)</div> <div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> dest[n] = dest[n] ^ src[n];</div> <div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span>}</div> <div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> </div> <div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span>mgf_mask(uint8_t *dest, <span class="keywordtype">size_t</span> dest_len, <span class="keyword">const</span> uint8_t *mask, <span class="keywordtype">size_t</span> mask_len)</div> <div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span>{</div> <div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keywordtype">unsigned</span> n = 0;</div> <div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> uint8_t hash[hash_len];</div> <div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> uint8_t seed[mask_len + 4];</div> <div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div> <div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> memcpy(seed, mask, mask_len);</div> <div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="comment">/* we always have some data and check is done internally */</span></div> <div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordflow">for</span> (;;) {</div> <div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> TDS_PUT_UA4BE(seed+mask_len, n);</div> <div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> </div> <div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> hash_func(hash, seed, <span class="keyword">sizeof</span>(seed));</div> <div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordflow">if</span> (dest_len <= hash_len) {</div> <div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> memxor(dest, hash, dest_len);</div> <div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">break</span>;</div> <div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> }</div> <div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> </div> <div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> memxor(dest, hash, hash_len);</div> <div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> dest += hash_len;</div> <div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> dest_len -= hash_len;</div> <div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> ++n;</div> <div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> }</div> <div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span>}</div> <div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div> <div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span>oaep_encrypt(<span class="keywordtype">size_t</span> key_size, <span class="keywordtype">void</span> *random_ctx, nettle_random_func *random,</div> <div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keywordtype">size_t</span> length, <span class="keyword">const</span> uint8_t *message, <a class="code hl_struct" href="a00750.html">mpz_t</a> m)</div> <div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span>{</div> <div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="comment">/* EM: 0x00 ROS (HASH 0x00.. 0x01 message) */</span></div> <div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keyword">struct </span>{</div> <div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> uint8_t all[1]; <span class="comment">/* zero but used to access all data */</span></div> <div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> uint8_t ros[hash_len];</div> <div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> uint8_t db[key_size_max - hash_len - 1];</div> <div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> } em;</div> <div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> db_len = key_size - hash_len - 1;</div> <div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> </div> <div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="keywordflow">if</span> (length + hash_len * 2 + 2 > key_size)</div> <div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="comment">/* Message too long for this key. */</span></div> <div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keywordflow">return</span> 0;</div> <div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> </div> <div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="comment">/* create db */</span></div> <div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> memset(&em, 0, <span class="keyword">sizeof</span>(em));</div> <div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> hash_func(em.db, label, strlen(label));</div> <div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> em.all[key_size - length - 1] = 0x1;</div> <div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> memcpy(em.all+(key_size - length), message, length);</div> <div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> dumpl(em.db, db_len);</div> <div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> </div> <div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="comment">/* create ros */</span></div> <div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> random(random_ctx, hash_len, em.ros);</div> <div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> dump(em.ros);</div> <div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> </div> <div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="comment">/* mask db */</span></div> <div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> mgf_mask(em.db, db_len, em.ros, hash_len);</div> <div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> dumpl(em.db, db_len);</div> <div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> </div> <div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="comment">/* mask ros */</span></div> <div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> mgf_mask(em.ros, hash_len, em.db, db_len);</div> <div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> dump(em.ros);</div> <div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> </div> <div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> nettle_mpz_set_str_256_u(m, key_size, em.all);</div> <div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> </div> <div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keywordflow">return</span> 1;</div> <div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span>}</div> <div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> </div> <div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span>rsa_encrypt_oaep(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code hl_struct" href="a00758.html">rsa_public_key</a> *key, <span class="keywordtype">void</span> *random_ctx, nettle_random_func *random,</div> <div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> <span class="keywordtype">size_t</span> length, <span class="keyword">const</span> uint8_t *message, <a class="code hl_struct" href="a00750.html">mpz_t</a> gibberish)</div> <div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span>{</div> <div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> <span class="keywordflow">if</span> (!oaep_encrypt(key->size, random_ctx, random, length, message, gibberish))</div> <div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="keywordflow">return</span> 0;</div> <div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> </div> <div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> mpz_powm(gibberish, gibberish, key->e, key->n);</div> <div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="keywordflow">return</span> 1;</div> <div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span>}</div> <div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> </div> <div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span><span class="keyword">static</span> <span class="keywordtype">void</span>*</div> <div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span>tds5_rsa_encrypt(<span class="keyword">const</span> <span class="keywordtype">void</span> *key, <span class="keywordtype">size_t</span> key_len, <span class="keyword">const</span> <span class="keywordtype">void</span> *nonce, <span class="keywordtype">size_t</span> nonce_len, <span class="keyword">const</span> <span class="keywordtype">char</span> *pwd, <span class="keywordtype">size_t</span> *em_size)</div> <div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span>{</div> <div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> <span class="keywordtype">int</span> ret;</div> <div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> <a class="code hl_struct" href="a00750.html">mpz_t</a> p;</div> <div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> gnutls_datum_t pubkey_datum = { (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) key, key_len };</div> <div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> <span class="keyword">struct </span><a class="code hl_struct" href="a00754.html">asn1_der_iterator</a> der;</div> <div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> <span class="keyword">struct </span><a class="code hl_struct" href="a00758.html">rsa_public_key</a> pubkey;</div> <div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> uint8_t *message;</div> <div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="keywordtype">size_t</span> message_len, pwd_len;</div> <div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> uint8_t *em = NULL;</div> <div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> der_buf[2048];</div> <div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <span class="keywordtype">size_t</span> size = <span class="keyword">sizeof</span>(der_buf);</div> <div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> </div> <div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> mpz_init(p);</div> <div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> rsa_public_key_init(&pubkey);</div> <div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> </div> <div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> pwd_len = strlen(pwd);</div> <div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> message_len = nonce_len + pwd_len;</div> <div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> message = tds_new(uint8_t, message_len);</div> <div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> <span class="keywordflow">if</span> (!message)</div> <div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <span class="keywordflow">return</span> NULL;</div> <div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> memcpy(message, nonce, nonce_len);</div> <div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> memcpy(message + nonce_len, pwd, pwd_len);</div> <div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> </div> <div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="comment">/* use nettle directly */</span></div> <div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> <span class="comment">/* parse PEM, get DER */</span></div> <div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> ret = gnutls_pem_base64_decode(<span class="stringliteral">"RSA PUBLIC KEY"</span>, &pubkey_datum, der_buf, &size);</div> <div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <span class="keywordflow">if</span> (ret) {</div> <div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <a class="code hl_function" href="a00416.html#ab45c291105027e69836002e1dd586141">tdsdump_log</a>(TDS_DBG_ERROR, <span class="stringliteral">"Error %d decoding public key: %s\n"</span>, ret, gnutls_strerror(ret));</div> <div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordflow">goto</span> error;</div> <div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> }</div> <div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> </div> <div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <span class="comment">/* get key with nettle using DER */</span></div> <div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> ret = asn1_der_iterator_first(&der, size, der_buf);</div> <div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordflow">if</span> (ret != ASN1_ITERATOR_CONSTRUCTED || der.type != ASN1_SEQUENCE) {</div> <div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <a class="code hl_function" href="a00416.html#ab45c291105027e69836002e1dd586141">tdsdump_log</a>(TDS_DBG_ERROR, <span class="stringliteral">"Invalid DER content\n"</span>);</div> <div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="keywordflow">goto</span> error;</div> <div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> }</div> <div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> </div> <div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> ret = rsa_public_key_from_der_iterator(&pubkey, key_size_max * 8, &der);</div> <div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="keywordflow">if</span> (!ret) {</div> <div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <a class="code hl_function" href="a00416.html#ab45c291105027e69836002e1dd586141">tdsdump_log</a>(TDS_DBG_ERROR, <span class="stringliteral">"Invalid DER content\n"</span>);</div> <div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="keywordflow">goto</span> error;</div> <div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> }</div> <div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> </div> <div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> <span class="comment">/* get password encrypted */</span></div> <div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> ret = rsa_encrypt_oaep(&pubkey, NULL, rnd_func, message_len, message, p);</div> <div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keywordflow">if</span> (!ret) {</div> <div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> <a class="code hl_function" href="a00416.html#ab45c291105027e69836002e1dd586141">tdsdump_log</a>(TDS_DBG_ERROR, <span class="stringliteral">"Error encrypting message\n"</span>);</div> <div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> <span class="keywordflow">goto</span> error;</div> <div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> }</div> <div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> </div> <div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> em = tds_new(uint8_t, pubkey.size);</div> <div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> *em_size = pubkey.size;</div> <div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keywordflow">if</span> (!em)</div> <div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> <span class="keywordflow">goto</span> error;</div> <div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> </div> <div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> nettle_mpz_get_str_256(pubkey.size, em, p);</div> <div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> </div> <div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <a class="code hl_function" href="a00416.html#a79449d2f35a8acc8ed0585044f75524d">tdsdump_dump_buf</a>(TDS_DBG_INFO1, <span class="stringliteral">"em"</span>, em, pubkey.size);</div> <div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> </div> <div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span>error:</div> <div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> free(message);</div> <div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> rsa_public_key_clear(&pubkey);</div> <div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> mpz_clear(p);</div> <div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="keywordflow">return</span> em;</div> <div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span>}</div> <div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> </div> <div class="ttc" id="aa00416_html_a79449d2f35a8acc8ed0585044f75524d"><div class="ttname"><a href="a00416.html#a79449d2f35a8acc8ed0585044f75524d">tdsdump_dump_buf</a></div><div class="ttdeci">void tdsdump_dump_buf(const char *file, unsigned int level_line, const char *msg, const void *buf, size_t length)</div><div class="ttdoc">Dump the contents of data into the log file in a human readable format.</div><div class="ttdef"><b>Definition:</b> log.c:293</div></div> <div class="ttc" id="aa00416_html_ab45c291105027e69836002e1dd586141"><div class="ttname"><a href="a00416.html#ab45c291105027e69836002e1dd586141">tdsdump_log</a></div><div class="ttdeci">void tdsdump_log(const char *file, unsigned int level_line, const char *fmt,...)</div><div class="ttdoc">Write a message to the debug log.</div><div class="ttdef"><b>Definition:</b> log.c:396</div></div> <div class="ttc" id="aa00750_html"><div class="ttname"><a href="a00750.html">mpz_t</a></div><div class="ttdef"><b>Definition:</b> sec_negotiate_gnutls.h:59</div></div> <div class="ttc" id="aa00754_html"><div class="ttname"><a href="a00754.html">asn1_der_iterator</a></div><div class="ttdef"><b>Definition:</b> sec_negotiate_gnutls.h:89</div></div> <div class="ttc" id="aa00758_html"><div class="ttname"><a href="a00758.html">rsa_public_key</a></div><div class="ttdef"><b>Definition:</b> sec_negotiate_gnutls.h:137</div></div> 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