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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://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=9"/> <meta name="generator" content="Doxygen 1.8.14"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Ruby: ext/openssl/ossl_cipher.c 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="../../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 style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">Ruby  <span id="projectnumber">1.9.3p551(2014-11-13revision48407)</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.14 --> <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:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('../../',false,false,'search.php','Search'); }); /* @license-end */</script> <div id="main-nav"></div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="../../dir_31cedd4509e06940f559c1ca2f722e02.html">ext</a></li><li class="navelem"><a class="el" href="../../dir_64db7e4e7eda6525bb8a667fe79df7d6.html">openssl</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">ossl_cipher.c</div> </div> </div><!--header--> <div class="contents"> <a href="../../d3/d28/ossl__cipher_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * $Id: ossl_cipher.c 44754 2014-01-30 03:49:07Z usa $</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * 'OpenSSL for Ruby' project</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * All rights reserved.</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> */</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">/*</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * This program is licenced under the same licence as Ruby.</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * (See the file 'LICENCE'.)</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> */</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "<a class="code" href="../../d5/dac/ossl_8h.html">ossl.h</a>"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a85149d29ca3eef6a9b68c40c12c9a46f"> 13</a></span> <span class="preprocessor">#define WrapCipher(obj, klass, ctx) \</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"> (obj) = Data_Wrap_Struct((klass), 0, ossl_cipher_free, (ctx))</span></div><div class="line"><a name="l00015"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#aace94dcd8c619ea717987c12e045158a"> 15</a></span> <span class="preprocessor">#define MakeCipher(obj, klass, ctx) \</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor"> (obj) = Data_Make_Struct((klass), EVP_CIPHER_CTX, 0, ossl_cipher_free, (ctx))</span></div><div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a29b0b108b399525fc4ce87a9c9448559"> 17</a></span> <span class="preprocessor">#define AllocCipher(obj, ctx) \</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"> memset(DATA_PTR(obj) = (ctx) = ALLOC(EVP_CIPHER_CTX), 0, sizeof(EVP_CIPHER_CTX))</span></div><div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#aa144c65ede676549c028675fd7ef9159"> 19</a></span> <span class="preprocessor">#define GetCipherInit(obj, ctx) do { \</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"> Data_Get_Struct((obj), EVP_CIPHER_CTX, (ctx)); \</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">} while (0)</span></div><div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a"> 22</a></span> <span class="preprocessor">#define GetCipher(obj, ctx) do { \</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"> GetCipherInit((obj), (ctx)); \</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"> if (!(ctx)) { \</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"> ossl_raise(rb_eRuntimeError, "Cipher not inititalized!"); \</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">} while (0)</span></div><div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a58e7e6d8f395ba4ad2b0613b2153d893"> 28</a></span> <span class="preprocessor">#define SafeGetCipher(obj, ctx) do { \</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"> OSSL_Check_Kind((obj), cCipher); \</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"> GetCipher((obj), (ctx)); \</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">} while (0)</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">/*</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * Classes</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> */</span></div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="../../d5/dc0/ossl__cipher_8h.html#a1699efc716bacc61af6f600133fd5700"> 36</a></span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>;</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="../../d5/dc0/ossl__cipher_8h.html#a025d5d40a8fa7987d37e226dfff70858"> 37</a></span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a0406978ad01a0dd4e417bfee3e8d9d97">ossl_cipher_alloc</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> klass);</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment">/*</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * PUBLIC</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> */</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">const</span> EVP_CIPHER *</div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="../../d5/dc0/ossl__cipher_8h.html#a4705ddedb671d3849aa3e90ecfd3405c"> 45</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a9982889153efa529d644d51507b6f1fe">GetCipherPtr</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> obj)</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  EVP_CIPHER_CTX *ctx;</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>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a58e7e6d8f395ba4ad2b0613b2153d893">SafeGetCipher</a>(obj, ctx);</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="keywordflow">return</span> EVP_CIPHER_CTX_cipher(ctx);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</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="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="../../d5/dc0/ossl__cipher_8h.html#ac81d876eeca22ee03d6b9a14f046b2b3"> 55</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a9abb7ee15282df988f941985f3dce498">ossl_cipher_new</a>(<span class="keyword">const</span> EVP_CIPHER *cipher)</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> ret;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  ret = <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a0406978ad01a0dd4e417bfee3e8d9d97">ossl_cipher_alloc</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a29b0b108b399525fc4ce87a9c9448559">AllocCipher</a>(ret, ctx);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  EVP_CIPHER_CTX_init(ctx);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (<a class="code" href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a>(ctx, cipher, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, -1) != 1)</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment">/*</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> * PRIVATE</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> */</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a8cf8a7858bbebfd54cff39d219646164"> 73</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a8cf8a7858bbebfd54cff39d219646164">ossl_cipher_free</a>(EVP_CIPHER_CTX *ctx)</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span> (ctx) {</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  EVP_CIPHER_CTX_cleanup(ctx);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="../../d8/d16/gc_8c.html#a0bffec5b2cc004adcebb6802e7620387">ruby_xfree</a>(ctx);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a0406978ad01a0dd4e417bfee3e8d9d97"> 82</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a0406978ad01a0dd4e417bfee3e8d9d97">ossl_cipher_alloc</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> klass)</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> obj;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a85149d29ca3eef6a9b68c40c12c9a46f">WrapCipher</a>(obj, klass, 0);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> obj;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment">/*</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> * Cipher.new(string) -> cipher</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> *</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> * The string must contain a valid cipher name like "AES-128-CBC" or "3DES".</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> *</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> * A list of cipher names is available by calling OpenSSL::Cipher.ciphers.</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> */</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#aa5a7623d994afe85c3dc0b8948bb67c6"> 100</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#aa5a7623d994afe85c3dc0b8948bb67c6">ossl_cipher_initialize</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> str)</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">const</span> EVP_CIPHER *cipher;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">char</span> *<a class="code" href="../../d6/da0/nkf-utf8_2nkf_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>[EVP_MAX_KEY_LENGTH];</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="../../d6/da0/nkf-utf8_2nkf_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a> = <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a2665a51abbd5b49c15abff3df00fa9db">StringValuePtr</a>(str);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#aa144c65ede676549c028675fd7ef9159">GetCipherInit</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (ctx) {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../db/dcc/error_8c.html#a95ad3953d535707e2cf2b1d837f5e253">rb_eRuntimeError</a>, <span class="stringliteral">"Cipher already inititalized!"</span>);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a29b0b108b399525fc4ce87a9c9448559">AllocCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  EVP_CIPHER_CTX_init(ctx);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">if</span> (!(cipher = EVP_get_cipherbyname(<a class="code" href="../../d6/da0/nkf-utf8_2nkf_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>))) {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../db/dcc/error_8c.html#a95ad3953d535707e2cf2b1d837f5e253">rb_eRuntimeError</a>, <span class="stringliteral">"unsupported cipher algorithm (%s)"</span>, <a class="code" href="../../d6/da0/nkf-utf8_2nkf_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">/*</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> * The EVP which has EVP_CIPH_RAND_KEY flag (such as DES3) allows</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> * uninitialized key, but other EVPs (such as AES) does not allow it.</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"> * Calling EVP_CipherUpdate() without initializing key causes SEGV so we</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"> * set the data filled with "\0" as the key by default.</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> */</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  memset(<a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>, 0, EVP_MAX_KEY_LENGTH);</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (<a class="code" href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a>(ctx, cipher, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, -1) != 1)</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">return</span> <span class="keyword">self</span>;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> }</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a05c11fd16b874eebb8562932cb544bfe"> 131</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a05c11fd16b874eebb8562932cb544bfe">ossl_cipher_copy</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> other)</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  EVP_CIPHER_CTX *ctx1, *ctx2;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="../../db/d2e/intern_8h.html#a372d6acb27d271ee4fc2e88c7022c485">rb_check_frozen</a>(<span class="keyword">self</span>);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> (<span class="keyword">self</span> == other) <span class="keywordflow">return</span> <span class="keyword">self</span>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#aa144c65ede676549c028675fd7ef9159">GetCipherInit</a>(<span class="keyword">self</span>, ctx1);</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (!ctx1) {</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a29b0b108b399525fc4ce87a9c9448559">AllocCipher</a>(<span class="keyword">self</span>, ctx1);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a58e7e6d8f395ba4ad2b0613b2153d893">SafeGetCipher</a>(other, ctx2);</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (<a class="code" href="../../da/d8c/openssl__missing_8c.html#a3d8a8829e379cd7e061120208e3a9142">EVP_CIPHER_CTX_copy</a>(ctx1, ctx2) != 1)</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> <span class="keyword">self</span>;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> }</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="preprocessor">#ifdef HAVE_OBJ_NAME_DO_ALL_SORTED</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">static</span> <span class="keywordtype">void</span>*</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> add_cipher_name_to_ary(<span class="keyword">const</span> OBJ_NAME *<a class="code" href="../../d6/da0/nkf-utf8_2nkf_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> ary)</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> {</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="../../dc/dcc/array_8c.html#a59d553a8cd781364b8bcb0deae25cca2">rb_ary_push</a>(ary, <a class="code" href="../../db/d2e/intern_8h.html#ada1577ce4242b06ff5c1c52f37f5e679">rb_str_new2</a>(<a class="code" href="../../d6/da0/nkf-utf8_2nkf_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>->name));</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span> <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> }</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="preprocessor">#ifdef HAVE_OBJ_NAME_DO_ALL_SORTED</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">/*</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> * Cipher.ciphers -> array[string...]</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> *</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> * Returns the names of all available ciphers in an array.</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> */</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#aa1a25cf1b81084221778daef284b828e">ossl_s_ciphers</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> {</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> ary;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  ary = <a class="code" href="../../dc/dcc/array_8c.html#a9518114fd36cb4ef4656ec1dc63348c9">rb_ary_new</a>();</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  (<span class="keywordtype">void</span>(*)(<span class="keyword">const</span> OBJ_NAME*,<span class="keywordtype">void</span>*))add_cipher_name_to_ary,</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  (<span class="keywordtype">void</span>*)ary);</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span> ary;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> }</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#aa1a25cf1b81084221778daef284b828e"> 178</a></span> <span class="preprocessor">#define ossl_s_ciphers rb_f_notimplement</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment">/*</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> * cipher.reset -> self</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> *</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> * Fully resets the internal state of the Cipher. By using this, the same</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> * Cipher instance may be used several times for en- or decryption tasks.</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> *</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> * Internally calls EVP_CipherInit_ex(ctx, NULL, NULL, NULL, NULL, -1).</span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> */</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a2ba81577bd9ba85ce3620e92a0ffb084"> 191</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a2ba81577bd9ba85ce3620e92a0ffb084">ossl_cipher_reset</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> {</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> (<a class="code" href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a>(ctx, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, -1) != 1)</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> <span class="keyword">self</span>;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> }</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00203"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a94eb9d5b9de6aa1a3bbb85ba1261fce8"> 203</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a94eb9d5b9de6aa1a3bbb85ba1261fce8">ossl_cipher_init</a>(<span class="keywordtype">int</span> <a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> *<a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>, <span class="keywordtype">int</span> mode)</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> {</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>[EVP_MAX_KEY_LENGTH], *p_key = <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> iv[EVP_MAX_IV_LENGTH], *p_iv = <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> pass, init_v;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">if</span>(<a class="code" href="../../d7/d19/group__defmethod.html#gaa7bed88640f01bee619f85fda09d28d7">rb_scan_args</a>(<a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <span class="stringliteral">"02"</span>, &pass, &init_v) > 0){</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">/*</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> * oops. this code mistakes salt for IV.</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> * We deprecated the arguments for this method, but we decided</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> * keeping this behaviour for backward compatibility.</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> */</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> cname = <a class="code" href="../../db/d2e/intern_8h.html#a77687f70dceed0367c7514c1dca29193">rb_class_path</a>(<a class="code" href="../../db/d2e/intern_8h.html#ac2be7243e739fa8f5dce6be0c8ee5f6d">rb_obj_class</a>(<span class="keyword">self</span>));</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="../../db/dcc/error_8c.html#aa5b1972d475e9a090c8ef607ce033008">rb_warn</a>(<span class="stringliteral">"arguments for %"</span><a class="code" href="../../de/d07/bigdecimal_8c.html#a8e362fd0b6f28e246f5d689a4b5ee1b8">PRIsVALUE</a><span class="stringliteral">"#encrypt and %"</span><a class="code" href="../../de/d07/bigdecimal_8c.html#a8e362fd0b6f28e246f5d689a4b5ee1b8">PRIsVALUE</a><span class="stringliteral">"#decrypt were deprecated; "</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="stringliteral">"use %"</span><a class="code" href="../../de/d07/bigdecimal_8c.html#a8e362fd0b6f28e246f5d689a4b5ee1b8">PRIsVALUE</a><span class="stringliteral">"#pkcs5_keyivgen to derive key and IV"</span>,</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="../../de/d07/bigdecimal_8c.html#a17f087f0a16e1ea932a538012f023aaa">RB_OBJ_STRING</a>(cname), <a class="code" href="../../de/d07/bigdecimal_8c.html#a17f087f0a16e1ea932a538012f023aaa">RB_OBJ_STRING</a>(cname), <a class="code" href="../../de/d07/bigdecimal_8c.html#a17f087f0a16e1ea932a538012f023aaa">RB_OBJ_STRING</a>(cname));</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(pass);</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">if</span> (<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a4832bad8845a35fc50f7a160901854a1">NIL_P</a>(init_v)) memcpy(iv, <span class="stringliteral">"OpenSSL for Ruby rulez!"</span>, <span class="keyword">sizeof</span>(iv));</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">else</span>{</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(init_v);</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">if</span> (EVP_MAX_IV_LENGTH > <a class="code" href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a>(init_v)) {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  memset(iv, 0, EVP_MAX_IV_LENGTH);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  memcpy(iv, <a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(init_v), <a class="code" href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a>(init_v));</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">else</span> memcpy(iv, <a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(init_v), <span class="keyword">sizeof</span>(iv));</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  EVP_BytesToKey(EVP_CIPHER_CTX_cipher(ctx), EVP_md5(), iv,</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(pass), <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a5133348f689646af76f8fe8e0af547f5">RSTRING_LENINT</a>(pass), 1, <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  p_key = <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  p_iv = iv;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  }</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  }</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (<a class="code" href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a>(ctx, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, p_key, p_iv, mode) != 1) {</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  }</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">return</span> <span class="keyword">self</span>;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> }</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment">/*</span></div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"> * cipher.encrypt -> self</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> *</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> * Initializes the Cipher for encryption.</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment"> *</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> * Make sure to call Cipher#encrypt or Cipher#decrypt before using any of the</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> * following methods:</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment"> * * [key=, iv=, random_key, random_iv, pkcs5_keyivgen]</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"> *</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> * Internally calls EVP_CipherInit_ex(ctx, NULL, NULL, NULL, NULL, 1).</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment"> */</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00259"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#ab4fdcde3aed8e6862ebbf00309d6a294"> 259</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#ab4fdcde3aed8e6862ebbf00309d6a294">ossl_cipher_encrypt</a>(<span class="keywordtype">int</span> <a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> *<a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> {</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a94eb9d5b9de6aa1a3bbb85ba1261fce8">ossl_cipher_init</a>(<a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <span class="keyword">self</span>, 1);</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> }</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment">/*</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment"> * cipher.decrypt -> self</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment"> *</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment"> * Initializes the Cipher for decryption.</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment"> *</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="comment"> * Make sure to call Cipher#encrypt or Cipher#decrypt before using any of the</span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment"> * following methods:</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment"> * * [key=, iv=, random_key, random_iv, pkcs5_keyivgen]</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment"> *</span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment"> * Internally calls EVP_CipherInit_ex(ctx, NULL, NULL, NULL, NULL, 0).</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment"> */</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00277"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#afb29ebd06d88db7b6d5e45667a97de3e"> 277</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#afb29ebd06d88db7b6d5e45667a97de3e">ossl_cipher_decrypt</a>(<span class="keywordtype">int</span> <a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> *<a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> {</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">return</span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a94eb9d5b9de6aa1a3bbb85ba1261fce8">ossl_cipher_init</a>(<a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <span class="keyword">self</span>, 0);</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> }</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment">/*</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment"> * cipher.pkcs5_keyivgen(pass [, salt [, iterations [, digest]]] ) -> nil</span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> *</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> * Generates and sets the key/IV based on a password.</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> *</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> * WARNING: This method is only PKCS5 v1.5 compliant when using RC2, RC4-40,</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment"> * or DES with MD5 or SHA1. Using anything else (like AES) will generate the</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"> * key/iv using an OpenSSL specific method. This method is deprecated and</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"> * should no longer be used. Use a PKCS5 v2 key generation method from</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> * OpenSSL::PKCS5 instead.</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment"> *</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment"> * === Parameters</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"> * +salt+ must be an 8 byte string if provided.</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> * +iterations+ is a integer with a default of 2048.</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment"> * +digest+ is a Digest object that defaults to 'MD5'</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"> *</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> * A minimum of 1000 iterations is recommended.</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> *</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"> */</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00303"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a1073221be5623b16ac67ca81aefee13f"> 303</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1073221be5623b16ac67ca81aefee13f">ossl_cipher_pkcs5_keyivgen</a>(<span class="keywordtype">int</span> <a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> *<a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> {</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keyword">const</span> EVP_MD *digest;</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> vpass, vsalt, viter, vdigest;</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH], *salt = <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordtype">int</span> iter;</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <a class="code" href="../../d7/d19/group__defmethod.html#gaa7bed88640f01bee619f85fda09d28d7">rb_scan_args</a>(<a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <span class="stringliteral">"13"</span>, &vpass, &vsalt, &viter, &vdigest);</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(vpass);</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordflow">if</span>(!<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a4832bad8845a35fc50f7a160901854a1">NIL_P</a>(vsalt)){</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(vsalt);</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">if</span>(<a class="code" href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a>(vsalt) != PKCS5_SALT_LEN)</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <span class="stringliteral">"salt must be an 8-octet string"</span>);</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  salt = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(vsalt);</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  }</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  iter = <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a4832bad8845a35fc50f7a160901854a1">NIL_P</a>(viter) ? 2048 : <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a877c38180d23c5447d976c70dda89d69">NUM2INT</a>(viter);</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  digest = <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a4832bad8845a35fc50f7a160901854a1">NIL_P</a>(vdigest) ? EVP_md5() : <a class="code" href="../../d3/d99/ossl__digest_8c.html#a760b89840317c7c4920f209db9cf12f2">GetDigestPtr</a>(vdigest);</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  EVP_BytesToKey(EVP_CIPHER_CTX_cipher(ctx), digest, salt,</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(vpass), <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a5133348f689646af76f8fe8e0af547f5">RSTRING_LENINT</a>(vpass), iter, <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>, iv);</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">if</span> (<a class="code" href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a>(ctx, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>, iv, -1) != 1)</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <a class="code" href="../../df/d69/openssl__missing_8h.html#a49bfe394ad0f4c0598b9367c4d52f029">OPENSSL_cleanse</a>(<a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>, <span class="keyword">sizeof</span> <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>);</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <a class="code" href="../../df/d69/openssl__missing_8h.html#a49bfe394ad0f4c0598b9367c4d52f029">OPENSSL_cleanse</a>(iv, <span class="keyword">sizeof</span> iv);</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordflow">return</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#aba03c3c4ff187bbda6c4459e2dc9f6c6">Qnil</a>;</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> }</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment">/*</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="comment"> * cipher.update(data [, buffer]) -> string or buffer</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="comment"> *</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="comment"> * Encrypts data in a streaming fashion. Hand consecutive blocks of data</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"> * to the +update+ method in order to encrypt it. Returns the encrypted</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment"> * data chunk. When done, the output of Cipher#final should be additionally</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment"> * added to the result.</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment"> *</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment"> * === Parameters</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="comment"> * +data+ is a nonempty string.</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="comment"> * +buffer+ is an optional string to store the result.</span></div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="comment"> */</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00347"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a445652bbce47eeb2a15474df0eca643a"> 347</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a445652bbce47eeb2a15474df0eca643a">ossl_cipher_update</a>(<span class="keywordtype">int</span> <a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> *<a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> {</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *in;</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordtype">int</span> in_len, out_len;</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> data, str;</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <a class="code" href="../../d7/d19/group__defmethod.html#gaa7bed88640f01bee619f85fda09d28d7">rb_scan_args</a>(<a class="code" href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a>, <a class="code" href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a>, <span class="stringliteral">"11"</span>, &data, &str);</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(data);</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  in = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(data);</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordflow">if</span> ((in_len = <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a5133348f689646af76f8fe8e0af547f5">RSTRING_LENINT</a>(data)) == 0)</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../db/dcc/error_8c.html#ab5e2a9fec766c75176fbb262bfe6a596">rb_eArgError</a>, <span class="stringliteral">"data must not be empty"</span>);</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  out_len = in_len+EVP_CIPHER_CTX_block_size(ctx);</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">if</span> (<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a4832bad8845a35fc50f7a160901854a1">NIL_P</a>(str)) {</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  str = <a class="code" href="../../db/d2e/intern_8h.html#a48b2b873adb8b6a04254bd631c4b03c5">rb_str_new</a>(0, out_len);</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(str);</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <a class="code" href="../../db/d2e/intern_8h.html#a0a133856edb99f69eae3cb5a9e275ac9">rb_str_resize</a>(str, out_len);</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  }</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span> (!EVP_CipherUpdate(ctx, (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(str), &out_len, in, in_len))</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <a class="code" href="../../d5/dac/ossl_8h.html#acdcc5aaebf3f273c1762f24a6ece2e5e">assert</a>(out_len < <a class="code" href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a>(str));</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <a class="code" href="../../d8/d81/ruby__missing_8h.html#a89ed8cb86ca6dd49d2db67adae809057">rb_str_set_len</a>(str, out_len);</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">return</span> str;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> }</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment">/*</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="comment"> * cipher.final -> string</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="comment"> *</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment"> * Returns the remaining data held in the cipher object. Further calls to</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="comment"> * Cipher#update or Cipher#final will return garbage.</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment"> *</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="comment"> * See EVP_CipherFinal_ex for further information.</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="comment"> */</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00388"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a7874738e31390d8ab4c648464956abb5"> 388</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a7874738e31390d8ab4c648464956abb5">ossl_cipher_final</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> {</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordtype">int</span> out_len;</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> str;</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  str = <a class="code" href="../../db/d2e/intern_8h.html#a48b2b873adb8b6a04254bd631c4b03c5">rb_str_new</a>(0, EVP_CIPHER_CTX_block_size(ctx));</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../df/d69/openssl__missing_8h.html#a2c13f2b44dd561d0bfa6d6cc576085ea">EVP_CipherFinal_ex</a>(ctx, (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(str), &out_len))</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <a class="code" href="../../d5/dac/ossl_8h.html#acdcc5aaebf3f273c1762f24a6ece2e5e">assert</a>(out_len <= <a class="code" href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a>(str));</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <a class="code" href="../../d8/d81/ruby__missing_8h.html#a89ed8cb86ca6dd49d2db67adae809057">rb_str_set_len</a>(str, out_len);</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">return</span> str;</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> }</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment">/*</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="comment"> * cipher.name -> string</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="comment"> *</span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="comment"> * Returns the name of the cipher which may differ slightly from the original</span></div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="comment"> * name provided.</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="comment"> */</span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00412"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a87be5f931333c594456007a09aa3eb26"> 412</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a87be5f931333c594456007a09aa3eb26">ossl_cipher_name</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>)</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> {</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> </div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">return</span> <a class="code" href="../../db/d2e/intern_8h.html#ada1577ce4242b06ff5c1c52f37f5e679">rb_str_new2</a>(<a class="code" href="../../df/d69/openssl__missing_8h.html#a0d7abaced986c0a76e13fa6200a89d7d">EVP_CIPHER_name</a>(EVP_CIPHER_CTX_cipher(ctx)));</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> }</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> </div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment">/*</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="comment"> * cipher.key = string -> string</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment"> *</span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="comment"> * Sets the cipher key. To generate a key, you should either use a secure</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="comment"> * random byte string or, if the key is to be derived from a password, you</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="comment"> * should rely on PBKDF2 functionality provided by OpenSSL::PKCS5. To</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment"> * generate a secure random-based key, Cipher#random_key may be used.</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment"> *</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="comment"> * Only call this method after calling Cipher#encrypt or Cipher#decrypt.</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="comment"> */</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00433"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a4b0b47e00c054161b6d1b9ff208f8b07"> 433</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a4b0b47e00c054161b6d1b9ff208f8b07">ossl_cipher_set_key</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>)</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> {</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(<a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>);</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span> </div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a>(<a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>) < EVP_CIPHER_CTX_key_length(ctx))</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <span class="stringliteral">"key length too short"</span>);</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">if</span> (<a class="code" href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a>(ctx, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(<a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>), <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, -1) != 1)</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span> </div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">return</span> <a class="code" href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a>;</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> }</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="comment">/*</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="comment"> * cipher.iv = string -> string</span></div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="comment"> *</span></div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="comment"> * Sets the cipher IV. Please note that since you should never be using ECB</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="comment"> * mode, an IV is always explicitly required and should be set prior to</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> * encryption. The IV itself can be safely transmitted in public, but it</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment"> * should be unpredictable to prevent certain kinds of attacks. You may use</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment"> * Cipher#random_iv to create a secure random IV.</span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment"> *</span></div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="comment"> * Only call this method after calling Cipher#encrypt or Cipher#decrypt.</span></div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="comment"> *</span></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="comment"> * If not explicitly set, the OpenSSL default of an all-zeroes ("\\0") IV is</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="comment"> * used.</span></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="comment"> */</span></div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00465"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a2ca7a53101be0bb28f8789e71d43505f"> 465</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a2ca7a53101be0bb28f8789e71d43505f">ossl_cipher_set_iv</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> iv)</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> {</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span> </div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a>(iv);</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span> </div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a>(iv) < EVP_CIPHER_CTX_iv_length(ctx))</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <span class="stringliteral">"iv length too short"</span>);</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span> </div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">if</span> (<a class="code" href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a>(ctx, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)<a class="code" href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a>(iv), -1) != 1)</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">return</span> iv;</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span> }</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span> </div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="comment">/*</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="comment"> * cipher.key_len = integer -> integer</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="comment"> *</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="comment"> * Sets the key length of the cipher. If the cipher is a fixed length cipher</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"> * then attempting to set the key length to any value other than the fixed</span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="comment"> * value is an error.</span></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="comment"> *</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="comment"> * Under normal circumstances you do not need to call this method (and probably shouldn't).</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="comment"> *</span></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment"> * See EVP_CIPHER_CTX_set_key_length for further information.</span></div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="comment"> */</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00495"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a69c9fd02cbe7f6288207a094a4e1667e"> 495</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a69c9fd02cbe7f6288207a094a4e1667e">ossl_cipher_set_key_length</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> key_length)</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span> {</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordtype">int</span> <a class="code" href="../../d3/d15/name2ctype_8h.html#aed1cc4dca5d94cb452f79691f54f7423">len</a> = <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a877c38180d23c5447d976c70dda89d69">NUM2INT</a>(key_length);</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span> </div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordflow">if</span> (EVP_CIPHER_CTX_set_key_length(ctx, <a class="code" href="../../d3/d15/name2ctype_8h.html#aed1cc4dca5d94cb452f79691f54f7423">len</a>) != 1)</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> </div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordflow">return</span> key_length;</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> }</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> </div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="preprocessor">#if defined(HAVE_EVP_CIPHER_CTX_SET_PADDING)</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment">/*</span></div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="comment"> * cipher.padding = integer -> integer</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="comment"> *</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="comment"> * Enables or disables padding. By default encryption operations are padded using standard block padding and the</span></div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="comment"> * padding is checked and removed when decrypting. If the pad parameter is zero then no padding is performed, the</span></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="comment"> * total amount of data encrypted or decrypted must then be a multiple of the block size or an error will occur.</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="comment"> *</span></div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="comment"> * See EVP_CIPHER_CTX_set_padding for further information.</span></div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="comment"> */</span></div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="keyword">static</span> <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a31141db3735e1670f0f5a5b28eb4c2c3">ossl_cipher_set_padding</a>(<a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> <span class="keyword">self</span>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a> padding)</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span> {</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  EVP_CIPHER_CTX *ctx;</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keywordtype">int</span> pad = <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a877c38180d23c5447d976c70dda89d69">NUM2INT</a>(padding);</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span> </div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a>(<span class="keyword">self</span>, ctx);</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordflow">if</span> (EVP_CIPHER_CTX_set_padding(ctx, pad) != 1)</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a>, <a class="code" href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">return</span> padding;</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span> }</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00530"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#a31141db3735e1670f0f5a5b28eb4c2c3"> 530</a></span> <span class="preprocessor">#define ossl_cipher_set_padding rb_f_notimplement</span></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> </div><div class="line"><a name="l00533"></a><span class="lineno"><a class="line" href="../../d3/d28/ossl__cipher_8c.html#abe895d84a860ace3dedd74599ba3be4d"> 533</a></span> <span class="preprocessor">#define CIPHER_0ARG_INT(func) \</span></div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="preprocessor"> static VALUE \</span></div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="preprocessor"> ossl_cipher_##func(VALUE self) \</span></div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="preprocessor"> { \</span></div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="preprocessor"> EVP_CIPHER_CTX *ctx; \</span></div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="preprocessor"> GetCipher(self, ctx); \</span></div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="preprocessor"> return INT2NUM(EVP_CIPHER_##func(EVP_CIPHER_CTX_cipher(ctx))); \</span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span> </div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span> <span class="comment">/*</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="comment"> * cipher.key_len -> integer</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="comment"> *</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="comment"> * Returns the key length in bytes of the Cipher.</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="comment"> */</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#abe895d84a860ace3dedd74599ba3be4d">CIPHER_0ARG_INT</a>(key_length)</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="comment">/*</span></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="comment"> * cipher.iv_len -> integer</span></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="comment"> *</span></div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="comment"> * Returns the expected length in bytes for an IV for this Cipher.</span></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="comment"> */</span></div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#abe895d84a860ace3dedd74599ba3be4d">CIPHER_0ARG_INT</a>(iv_length)</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="comment">/*</span></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment"> * call-seq:</span></div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="comment"> * cipher.block_size -> integer</span></div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="comment"> *</span></div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="comment"> * Returns the size in bytes of the blocks on which this Cipher operates on.</span></div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="comment"> */</span></div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#abe895d84a860ace3dedd74599ba3be4d">CIPHER_0ARG_INT</a>(block_size)</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="comment">/*</span></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"> * INIT</span></div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="comment"> */</span></div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00568"></a><span class="lineno"><a class="line" href="../../d5/dc0/ossl__cipher_8h.html#a959e215d3e6c837e5218063da81e2451"> 568</a></span> <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a959e215d3e6c837e5218063da81e2451">Init_ossl_cipher</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> {</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="preprocessor">#if 0</span></div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <a class="code" href="../../d4/d3c/ossl_8c.html#a19a5e8aeedd7c99b95bb894a7663fcb9">mOSSL</a> = <a class="code" href="../../de/ddf/group__class.html#ga911071d40f9312e49a774ea0e1b12869">rb_define_module</a>(<span class="stringliteral">"OpenSSL"</span>); <span class="comment">/* let rdoc know about mOSSL */</span></div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> </div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="comment">/* Document-class: OpenSSL::Cipher</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment"> *</span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="comment"> * Provides symmetric algorithms for encryption and decryption. The</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment"> * algorithms that are available depend on the particular version</span></div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="comment"> * of OpenSSL that is installed.</span></div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="comment"> *</span></div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment"> * === Listing all supported algorithms</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment"> *</span></div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="comment"> * A list of supported algorithms can be obtained by</span></div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="comment"> *</span></div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="comment"> * puts OpenSSL::Cipher.ciphers</span></div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="comment"> *</span></div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment"> * === Instantiating a Cipher</span></div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="comment"> *</span></div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="comment"> * There are several ways to create a Cipher instance. Generally, a</span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="comment"> * Cipher algorithm is categorized by its name, the key length in bits</span></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="comment"> * and the cipher mode to be used. The most generic way to create a</span></div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="comment"> * Cipher is the following</span></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="comment"> *</span></div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="comment"> * cipher = OpenSSL::Cipher.new('<name>-<key length>-<mode>')</span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment"> *</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="comment"> * That is, a string consisting of the hyphenated concatenation of the</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="comment"> * individual components name, key length and mode. Either all uppercase</span></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> <span class="comment"> * or all lowercase strings may be used, for example:</span></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="comment"> *</span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="comment"> * cipher = OpenSSL::Cipher.new('AES-128-CBC')</span></div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="comment"> *</span></div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> <span class="comment"> * For each algorithm supported, there is a class defined under the</span></div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="comment"> * Cipher class that goes by the name of the cipher, e.g. to obtain an</span></div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="comment"> * instance of AES, you could also use</span></div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="comment"> *</span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="comment"> * # these are equivalent</span></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="comment"> * cipher = OpenSSL::Cipher::AES.new(128, :CBC)</span></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="comment"> * cipher = OpenSSL::Cipher::AES.new(128, 'CBC')</span></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="comment"> * cipher = OpenSSL::Cipher::AES.new('128-CBC')</span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="comment"> *</span></div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="comment"> * Finally, due to its wide-spread use, there are also extra classes</span></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="comment"> * defined for the different key sizes of AES</span></div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="comment"> *</span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="comment"> * cipher = OpenSSL::Cipher::AES128.new(:CBC)</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment"> * cipher = OpenSSL::Cipher::AES192.new(:CBC)</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment"> * cipher = OpenSSL::Cipher::AES256.new(:CBC)</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="comment"> *</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="comment"> * === Choosing either encryption or decryption mode</span></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="comment"> *</span></div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="comment"> * Encryption and decryption are often very similar operations for</span></div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="comment"> * symmetric algorithms, this is reflected by not having to choose</span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="comment"> * different classes for either operation, both can be done using the</span></div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="comment"> * same class. Still, after obtaining a Cipher instance, we need to</span></div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span> <span class="comment"> * tell the instance what it is that we intend to do with it, so we</span></div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment"> * need to call either</span></div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="comment"> *</span></div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="comment"> * cipher.encrypt</span></div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="comment"> *</span></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="comment"> * or</span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="comment"> *</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="comment"> * cipher.decrypt</span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment"> *</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment"> * on the Cipher instance. This should be the first call after creating</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="comment"> * the instance, otherwise configuration that has already been set could</span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="comment"> * get lost in the process.</span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="comment"> *</span></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="comment"> * === Choosing a key</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="comment"> *</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="comment"> * Symmetric encryption requires a key that is the same for the encrypting</span></div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="comment"> * and for the decrypting party and after initial key establishment should</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="comment"> * be kept as private information. There are a lot of ways to create</span></div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="comment"> * insecure keys, the most notable is to simply take a password as the key</span></div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="comment"> * without processing the password further. A simple and secure way to</span></div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="comment"> * create a key for a particular Cipher is</span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment"> *</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment"> * cipher = OpenSSL::AES256.new(:CFB)</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="comment"> * cipher.encrypt</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="comment"> * key = cipher.random_key # also sets the generated key on the Cipher</span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="comment"> *</span></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="comment"> * If you absolutely need to use passwords as encryption keys, you</span></div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="comment"> * should use Password-Based Key Derivation Function 2 (PBKDF2) by</span></div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="comment"> * generating the key with the help of the functionality provided by</span></div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="comment"> * OpenSSL::PKCS5.pbkdf2_hmac_sha1 or OpenSSL::PKCS5.pbkdf2_hmac.</span></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span> <span class="comment"> *</span></div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span> <span class="comment"> * Although there is Cipher#pkcs5_keyivgen, its use is deprecated and</span></div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="comment"> * it should only be used in legacy applications because it does not use</span></div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="comment"> * the newer PKCS#5 v2 algorithms.</span></div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="comment"> *</span></div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="comment"> * === Choosing an IV</span></div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="comment"> *</span></div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="comment"> * The cipher modes CBC, CFB, OFB and CTR all need an "initialization</span></div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="comment"> * vector", or short, IV. ECB mode is the only mode that does not require</span></div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="comment"> * an IV, but there is almost no legitimate use case for this mode</span></div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="comment"> * because of the fact that it does not sufficiently hide plaintext</span></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment"> * patterns. Therefore</span></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment"> *</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment"> * <b>You should never use ECB mode unless you are absolutely sure that</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment"> * you absolutely need it</b></span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"> *</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="comment"> * Because of this, you will end up with a mode that explicitly requires</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="comment"> * an IV in any case. Note that for backwards compatibility reasons,</span></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="comment"> * setting an IV is not explicitly mandated by the Cipher API. If not</span></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span> <span class="comment"> * set, OpenSSL itself defaults to an all-zeroes IV ("\\0", not the</span></div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span> <span class="comment"> * character). Although the IV can be seen as public information, i.e.</span></div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span> <span class="comment"> * it may be transmitted in public once generated, it should still stay</span></div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="comment"> * unpredictable to prevent certain kinds of attacks. Therefore, ideally</span></div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="comment"> *</span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span> <span class="comment"> * <b>Always create a secure random IV for every encryption of your</span></div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="comment"> * Cipher</b></span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="comment"> *</span></div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="comment"> * A new, random IV should be created for every encryption of data. Think</span></div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> <span class="comment"> * of the IV as a nonce (number used once) - it's public but random and</span></div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span> <span class="comment"> * unpredictable. A secure random IV can be created as follows</span></div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="comment"> *</span></div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="comment"> * cipher = ...</span></div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span> <span class="comment"> * cipher.encrypt</span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span> <span class="comment"> * key = cipher.random_key</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span> <span class="comment"> * iv = cipher.random_iv # also sets the generated IV on the Cipher</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span> <span class="comment"> *</span></div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="comment"> * Although the key is generally a random value, too, it is a bad choice</span></div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="comment"> * as an IV. There are elaborate ways how an attacker can take advantage</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span> <span class="comment"> * of such an IV. As a general rule of thumb, exposing the key directly</span></div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="comment"> * or indirectly should be avoided at all cost and exceptions only be</span></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="comment"> * made with good reason.</span></div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span> <span class="comment"> *</span></div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span> <span class="comment"> * === Calling Cipher#final</span></div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span> <span class="comment"> *</span></div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span> <span class="comment"> * ECB (which should not be used) and CBC are both block-based modes.</span></div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span> <span class="comment"> * This means that unlike for the other streaming-based modes, they</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span> <span class="comment"> * operate on fixed-size blocks of data, and therefore they require a</span></div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span> <span class="comment"> * "finalization" step to produce or correctly decrypt the last block of</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span> <span class="comment"> * data by appropriately handling some form of padding. Therefore it is</span></div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span> <span class="comment"> * essential to add the output of OpenSSL::Cipher#final to your</span></div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span> <span class="comment"> * encryption/decryption buffer or you will end up with decryption errors</span></div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span> <span class="comment"> * or truncated data.</span></div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span> <span class="comment"> *</span></div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span> <span class="comment"> * Although this is not really necessary for streaming-mode ciphers, it is</span></div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span> <span class="comment"> * still recommended to apply the same pattern of adding the output of</span></div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span> <span class="comment"> * Cipher#final there as well - it also enables you to switch between</span></div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span> <span class="comment"> * modes more easily in the future.</span></div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span> <span class="comment"> *</span></div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> <span class="comment"> * === Encrypting and decrypting some data</span></div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span> <span class="comment"> *</span></div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span> <span class="comment"> * data = "Very, very confidential data"</span></div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span> <span class="comment"> *</span></div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="comment"> * cipher = OpenSSL::Cipher::AES.new(128, :CBC)</span></div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span> <span class="comment"> * cipher.encrypt</span></div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span> <span class="comment"> * key = cipher.random_key</span></div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span> <span class="comment"> * iv = cipher.random_iv</span></div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span> <span class="comment"> *</span></div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="comment"> * encrypted = cipher.update(data) + cipher.final</span></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span> <span class="comment"> * ...</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="comment"> * decipher = OpenSSL::Cipher::AES.new(128, :CBC)</span></div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="comment"> * decipher.decrypt</span></div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span> <span class="comment"> * decipher.key = key</span></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span> <span class="comment"> * decipher.iv = iv</span></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span> <span class="comment"> *</span></div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span> <span class="comment"> * plain = decipher.update(encrypted) + decipher.final</span></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span> <span class="comment"> *</span></div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="comment"> * puts data == plain #=> true</span></div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span> <span class="comment"> *</span></div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span> <span class="comment"> */</span></div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a> = <a class="code" href="../../de/ddf/group__class.html#ga5266deadce0318d830a1e63c0933b898">rb_define_class_under</a>(<a class="code" href="../../d4/d3c/ossl_8c.html#a19a5e8aeedd7c99b95bb894a7663fcb9">mOSSL</a>, <span class="stringliteral">"Cipher"</span>, <a class="code" href="../../de/de6/ruby_2ruby_8h.html#a57c96ead3ef230b4838e65fe037c346e">rb_cObject</a>);</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a> = <a class="code" href="../../de/ddf/group__class.html#ga5266deadce0318d830a1e63c0933b898">rb_define_class_under</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"CipherError"</span>, <a class="code" href="../../d4/d3c/ossl_8c.html#aea0de3b19cf8085effab72943bddc56e">eOSSLError</a>);</div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span> </div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <a class="code" href="../../db/d2e/intern_8h.html#a6c99ed7f070458b961026d43d27d0642">rb_define_alloc_func</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a0406978ad01a0dd4e417bfee3e8d9d97">ossl_cipher_alloc</a>);</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <a class="code" href="../../d8/d81/ruby__missing_8h.html#ab14e6f324ee005abbf34dd3e920e5e50">rb_define_copy_func</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a05c11fd16b874eebb8562932cb544bfe">ossl_cipher_copy</a>);</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <a class="code" href="../../d7/d19/group__defmethod.html#gafc7122dde38ecff13de3e9d19a30aaeb">rb_define_module_function</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"ciphers"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#aa1a25cf1b81084221778daef284b828e">ossl_s_ciphers</a>, 0);</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"initialize"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#aa5a7623d994afe85c3dc0b8948bb67c6">ossl_cipher_initialize</a>, 1);</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"reset"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a2ba81577bd9ba85ce3620e92a0ffb084">ossl_cipher_reset</a>, 0);</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"encrypt"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#ab4fdcde3aed8e6862ebbf00309d6a294">ossl_cipher_encrypt</a>, -1);</div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"decrypt"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#afb29ebd06d88db7b6d5e45667a97de3e">ossl_cipher_decrypt</a>, -1);</div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"pkcs5_keyivgen"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1073221be5623b16ac67ca81aefee13f">ossl_cipher_pkcs5_keyivgen</a>, -1);</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"update"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a445652bbce47eeb2a15474df0eca643a">ossl_cipher_update</a>, -1);</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"final"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a7874738e31390d8ab4c648464956abb5">ossl_cipher_final</a>, 0);</div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"name"</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a87be5f931333c594456007a09aa3eb26">ossl_cipher_name</a>, 0);</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"key="</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a4b0b47e00c054161b6d1b9ff208f8b07">ossl_cipher_set_key</a>, 1);</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"key_len="</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a69c9fd02cbe7f6288207a094a4e1667e">ossl_cipher_set_key_length</a>, 1);</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"key_len"</span>, ossl_cipher_key_length, 0);</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"iv="</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a2ca7a53101be0bb28f8789e71d43505f">ossl_cipher_set_iv</a>, 1);</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"iv_len"</span>, ossl_cipher_iv_length, 0);</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"block_size"</span>, ossl_cipher_block_size, 0);</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  <a class="code" href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a>(<a class="code" href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a>, <span class="stringliteral">"padding="</span>, <a class="code" href="../../d3/d28/ossl__cipher_8c.html#a31141db3735e1670f0f5a5b28eb4c2c3">ossl_cipher_set_padding</a>, 1);</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span> }</div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span> </div><div class="ttc" id="generator_8h_html_a1661e63c26c5cbeef7217d05b0f33942"><div class="ttname"><a href="../../d8/df4/generator_8h.html#a1661e63c26c5cbeef7217d05b0f33942">RSTRING_LEN</a></div><div class="ttdeci">#define RSTRING_LEN(string)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df4/generator_8h_source.html#l00045">generator.h:45</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a0406978ad01a0dd4e417bfee3e8d9d97"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a0406978ad01a0dd4e417bfee3e8d9d97">ossl_cipher_alloc</a></div><div class="ttdeci">static VALUE ossl_cipher_alloc(VALUE klass)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00082">ossl_cipher.c:82</a></div></div> <div class="ttc" id="ossl_8c_html_a19a5e8aeedd7c99b95bb894a7663fcb9"><div class="ttname"><a href="../../d4/d3c/ossl_8c.html#a19a5e8aeedd7c99b95bb894a7663fcb9">mOSSL</a></div><div class="ttdeci">VALUE mOSSL</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d3c/ossl_8c_source.html#l00250">ossl.c:250</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a7874738e31390d8ab4c648464956abb5"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a7874738e31390d8ab4c648464956abb5">ossl_cipher_final</a></div><div class="ttdeci">static VALUE ossl_cipher_final(VALUE self)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00388">ossl_cipher.c:388</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a31141db3735e1670f0f5a5b28eb4c2c3"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a31141db3735e1670f0f5a5b28eb4c2c3">ossl_cipher_set_padding</a></div><div class="ttdeci">#define ossl_cipher_set_padding</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00530">ossl_cipher.c:530</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_a877c38180d23c5447d976c70dda89d69"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#a877c38180d23c5447d976c70dda89d69">NUM2INT</a></div><div class="ttdeci">#define NUM2INT(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l00536">ruby.h:536</a></div></div> <div class="ttc" id="openssl__missing_8h_html_a49bfe394ad0f4c0598b9367c4d52f029"><div class="ttname"><a href="../../df/d69/openssl__missing_8h.html#a49bfe394ad0f4c0598b9367c4d52f029">OPENSSL_cleanse</a></div><div class="ttdeci">#define OPENSSL_cleanse(p, l)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d69/openssl__missing_8h_source.html#l00133">openssl_missing.h:133</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a94eb9d5b9de6aa1a3bbb85ba1261fce8"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a94eb9d5b9de6aa1a3bbb85ba1261fce8">ossl_cipher_init</a></div><div class="ttdeci">static VALUE ossl_cipher_init(int argc, VALUE *argv, VALUE self, int mode)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00203">ossl_cipher.c:203</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a29b0b108b399525fc4ce87a9c9448559"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a29b0b108b399525fc4ce87a9c9448559">AllocCipher</a></div><div class="ttdeci">#define AllocCipher(obj, ctx)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00017">ossl_cipher.c:17</a></div></div> <div class="ttc" id="bigdecimal_8c_html_a8e362fd0b6f28e246f5d689a4b5ee1b8"><div class="ttname"><a href="../../de/d07/bigdecimal_8c.html#a8e362fd0b6f28e246f5d689a4b5ee1b8">PRIsVALUE</a></div><div class="ttdeci">#define PRIsVALUE</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d07/bigdecimal_8c_source.html#l00109">bigdecimal.c:109</a></div></div> <div class="ttc" id="array_8c_html_a59d553a8cd781364b8bcb0deae25cca2"><div class="ttname"><a href="../../dc/dcc/array_8c.html#a59d553a8cd781364b8bcb0deae25cca2">rb_ary_push</a></div><div class="ttdeci">VALUE rb_ary_push(VALUE ary, VALUE item)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dcc/array_8c_source.html#l00740">array.c:740</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a445652bbce47eeb2a15474df0eca643a"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a445652bbce47eeb2a15474df0eca643a">ossl_cipher_update</a></div><div class="ttdeci">static VALUE ossl_cipher_update(int argc, VALUE *argv, VALUE self)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00347">ossl_cipher.c:347</a></div></div> <div class="ttc" id="bigdecimal_8c_html_a17f087f0a16e1ea932a538012f023aaa"><div class="ttname"><a href="../../de/d07/bigdecimal_8c.html#a17f087f0a16e1ea932a538012f023aaa">RB_OBJ_STRING</a></div><div class="ttdeci">#define RB_OBJ_STRING(obj)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d07/bigdecimal_8c_source.html#l00111">bigdecimal.c:111</a></div></div> <div class="ttc" id="generator_8h_html_aa0c7097c0d82c8372072fbab5a604e39"><div class="ttname"><a href="../../d8/df4/generator_8h.html#aa0c7097c0d82c8372072fbab5a604e39">RSTRING_PTR</a></div><div class="ttdeci">#define RSTRING_PTR(string)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df4/generator_8h_source.html#l00042">generator.h:42</a></div></div> <div class="ttc" id="group__class_html_ga5266deadce0318d830a1e63c0933b898"><div class="ttname"><a href="../../de/ddf/group__class.html#ga5266deadce0318d830a1e63c0933b898">rb_define_class_under</a></div><div class="ttdeci">VALUE rb_define_class_under(VALUE outer, const char *name, VALUE super)</div><div class="ttdoc">Defines a class under the namespace of outer. </div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d0c/class_8c_source.html#l00515">class.c:515</a></div></div> <div class="ttc" id="intern_8h_html_a6c99ed7f070458b961026d43d27d0642"><div class="ttname"><a href="../../db/d2e/intern_8h.html#a6c99ed7f070458b961026d43d27d0642">rb_define_alloc_func</a></div><div class="ttdeci">void rb_define_alloc_func(VALUE, rb_alloc_func_t)</div></div> <div class="ttc" id="openssl__missing_8h_html_a2c13f2b44dd561d0bfa6d6cc576085ea"><div class="ttname"><a href="../../df/d69/openssl__missing_8h.html#a2c13f2b44dd561d0bfa6d6cc576085ea">EVP_CipherFinal_ex</a></div><div class="ttdeci">#define EVP_CipherFinal_ex(ctx, outm, outl)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d69/openssl__missing_8h_source.html#l00109">openssl_missing.h:109</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_acd9b8366bf6295614980e9d2c2d0b76a"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#acd9b8366bf6295614980e9d2c2d0b76a">GetCipher</a></div><div class="ttdeci">#define GetCipher(obj, ctx)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00022">ossl_cipher.c:22</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a85149d29ca3eef6a9b68c40c12c9a46f"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a85149d29ca3eef6a9b68c40c12c9a46f">WrapCipher</a></div><div class="ttdeci">#define WrapCipher(obj, klass, ctx)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00013">ossl_cipher.c:13</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a69c9fd02cbe7f6288207a094a4e1667e"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a69c9fd02cbe7f6288207a094a4e1667e">ossl_cipher_set_key_length</a></div><div class="ttdeci">static VALUE ossl_cipher_set_key_length(VALUE self, VALUE key_length)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00495">ossl_cipher.c:495</a></div></div> <div class="ttc" id="ruby__missing_8h_html_ab14e6f324ee005abbf34dd3e920e5e50"><div class="ttname"><a href="../../d8/d81/ruby__missing_8h.html#ab14e6f324ee005abbf34dd3e920e5e50">rb_define_copy_func</a></div><div class="ttdeci">#define rb_define_copy_func(klass, func)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d81/ruby__missing_8h_source.html#l00014">ruby_missing.h:14</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_aa5a7623d994afe85c3dc0b8948bb67c6"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#aa5a7623d994afe85c3dc0b8948bb67c6">ossl_cipher_initialize</a></div><div class="ttdeci">static VALUE ossl_cipher_initialize(VALUE self, VALUE str)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00100">ossl_cipher.c:100</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a9abb7ee15282df988f941985f3dce498"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a9abb7ee15282df988f941985f3dce498">ossl_cipher_new</a></div><div class="ttdeci">VALUE ossl_cipher_new(const EVP_CIPHER *cipher)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00055">ossl_cipher.c:55</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a025d5d40a8fa7987d37e226dfff70858"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a025d5d40a8fa7987d37e226dfff70858">eCipherError</a></div><div class="ttdeci">VALUE eCipherError</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00037">ossl_cipher.c:37</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_abe895d84a860ace3dedd74599ba3be4d"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#abe895d84a860ace3dedd74599ba3be4d">CIPHER_0ARG_INT</a></div><div class="ttdeci">#define CIPHER_0ARG_INT(func)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00533">ossl_cipher.c:533</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a58e7e6d8f395ba4ad2b0613b2153d893"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a58e7e6d8f395ba4ad2b0613b2153d893">SafeGetCipher</a></div><div class="ttdeci">#define SafeGetCipher(obj, ctx)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00028">ossl_cipher.c:28</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_a57c96ead3ef230b4838e65fe037c346e"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#a57c96ead3ef230b4838e65fe037c346e">rb_cObject</a></div><div class="ttdeci">RUBY_EXTERN VALUE rb_cObject</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l01246">ruby.h:1246</a></div></div> <div class="ttc" id="error_8c_html_a95ad3953d535707e2cf2b1d837f5e253"><div class="ttname"><a href="../../db/dcc/error_8c.html#a95ad3953d535707e2cf2b1d837f5e253">rb_eRuntimeError</a></div><div class="ttdeci">VALUE rb_eRuntimeError</div><div class="ttdef"><b>Definition:</b> <a href="../../db/dcc/error_8c_source.html#l00466">error.c:466</a></div></div> <div class="ttc" id="openssl__missing_8h_html_af5a214e39ad85f4c7870a4a8d1c0ae74"><div class="ttname"><a href="../../df/d69/openssl__missing_8h.html#af5a214e39ad85f4c7870a4a8d1c0ae74">EVP_CipherInit_ex</a></div><div class="ttdeci">#define EVP_CipherInit_ex(ctx, type, impl, key, iv, enc)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d69/openssl__missing_8h_source.html#l00106">openssl_missing.h:106</a></div></div> <div class="ttc" id="openssl__missing_8h_html_a0d7abaced986c0a76e13fa6200a89d7d"><div class="ttname"><a href="../../df/d69/openssl__missing_8h.html#a0d7abaced986c0a76e13fa6200a89d7d">EVP_CIPHER_name</a></div><div class="ttdeci">#define EVP_CIPHER_name(e)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d69/openssl__missing_8h_source.html#l00113">openssl_missing.h:113</a></div></div> <div class="ttc" id="array_8c_html_a9518114fd36cb4ef4656ec1dc63348c9"><div class="ttname"><a href="../../dc/dcc/array_8c.html#a9518114fd36cb4ef4656ec1dc63348c9">rb_ary_new</a></div><div class="ttdeci">VALUE rb_ary_new(void)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dcc/array_8c_source.html#l00339">array.c:339</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_a4832bad8845a35fc50f7a160901854a1"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#a4832bad8845a35fc50f7a160901854a1">NIL_P</a></div><div class="ttdeci">#define NIL_P(v)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l00374">ruby.h:374</a></div></div> <div class="ttc" id="ossl__digest_8c_html_a760b89840317c7c4920f209db9cf12f2"><div class="ttname"><a href="../../d3/d99/ossl__digest_8c.html#a760b89840317c7c4920f209db9cf12f2">GetDigestPtr</a></div><div class="ttdeci">const EVP_MD * GetDigestPtr(VALUE obj)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d99/ossl__digest_8c_source.html#l00036">ossl_digest.c:36</a></div></div> <div class="ttc" id="ossl_8c_html_aea0de3b19cf8085effab72943bddc56e"><div class="ttname"><a href="../../d4/d3c/ossl_8c.html#aea0de3b19cf8085effab72943bddc56e">eOSSLError</a></div><div class="ttdeci">VALUE eOSSLError</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d3c/ossl_8c_source.html#l00255">ossl.c:255</a></div></div> <div class="ttc" id="ruby_8c_html_ad1447518f4372828b8435ae82e48499e"><div class="ttname"><a href="../../df/d77/ruby_8c.html#ad1447518f4372828b8435ae82e48499e">argc</a></div><div class="ttdeci">int argc</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d77/ruby_8c_source.html#l00120">ruby.c:120</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a9982889153efa529d644d51507b6f1fe"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a9982889153efa529d644d51507b6f1fe">GetCipherPtr</a></div><div class="ttdeci">const EVP_CIPHER * GetCipherPtr(VALUE obj)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00045">ossl_cipher.c:45</a></div></div> <div class="ttc" id="intern_8h_html_a0a133856edb99f69eae3cb5a9e275ac9"><div class="ttname"><a href="../../db/d2e/intern_8h.html#a0a133856edb99f69eae3cb5a9e275ac9">rb_str_resize</a></div><div class="ttdeci">VALUE rb_str_resize(VALUE, long)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/db0/string_8c_source.html#l01779">string.c:1779</a></div></div> <div class="ttc" id="group__defmethod_html_gafc7122dde38ecff13de3e9d19a30aaeb"><div class="ttname"><a href="../../d7/d19/group__defmethod.html#gafc7122dde38ecff13de3e9d19a30aaeb">rb_define_module_function</a></div><div class="ttdeci">void rb_define_module_function(VALUE module, const char *name, VALUE(*func)(ANYARGS), int argc)</div><div class="ttdoc">Defines a module function for module. </div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d0c/class_8c_source.html#l01358">class.c:1358</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_ab4fdcde3aed8e6862ebbf00309d6a294"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#ab4fdcde3aed8e6862ebbf00309d6a294">ossl_cipher_encrypt</a></div><div class="ttdeci">static VALUE ossl_cipher_encrypt(int argc, VALUE *argv, VALUE self)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00259">ossl_cipher.c:259</a></div></div> <div class="ttc" id="intern_8h_html_a77687f70dceed0367c7514c1dca29193"><div class="ttname"><a href="../../db/d2e/intern_8h.html#a77687f70dceed0367c7514c1dca29193">rb_class_path</a></div><div class="ttdeci">VALUE rb_class_path(VALUE)</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d2a/variable_8c_source.html#l00189">variable.c:189</a></div></div> <div class="ttc" id="gc_8c_html_a0bffec5b2cc004adcebb6802e7620387"><div class="ttname"><a href="../../d8/d16/gc_8c.html#a0bffec5b2cc004adcebb6802e7620387">ruby_xfree</a></div><div class="ttdeci">void ruby_xfree(void *x)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d16/gc_8c_source.html#l00916">gc.c:916</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_aa1a25cf1b81084221778daef284b828e"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#aa1a25cf1b81084221778daef284b828e">ossl_s_ciphers</a></div><div class="ttdeci">#define ossl_s_ciphers</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00178">ossl_cipher.c:178</a></div></div> <div class="ttc" id="group__defmethod_html_gaa7bed88640f01bee619f85fda09d28d7"><div class="ttname"><a href="../../d7/d19/group__defmethod.html#gaa7bed88640f01bee619f85fda09d28d7">rb_scan_args</a></div><div class="ttdeci">int rb_scan_args(int argc, const VALUE *argv, const char *fmt,...)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d0c/class_8c_source.html#l01416">class.c:1416</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a05c11fd16b874eebb8562932cb544bfe"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a05c11fd16b874eebb8562932cb544bfe">ossl_cipher_copy</a></div><div class="ttdeci">static VALUE ossl_cipher_copy(VALUE self, VALUE other)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00131">ossl_cipher.c:131</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_aba03c3c4ff187bbda6c4459e2dc9f6c6"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#aba03c3c4ff187bbda6c4459e2dc9f6c6">Qnil</a></div><div class="ttdeci">#define Qnil</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l00367">ruby.h:367</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_afb29ebd06d88db7b6d5e45667a97de3e"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#afb29ebd06d88db7b6d5e45667a97de3e">ossl_cipher_decrypt</a></div><div class="ttdeci">static VALUE ossl_cipher_decrypt(int argc, VALUE *argv, VALUE self)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00277">ossl_cipher.c:277</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_a3c1d4bfc6a81af60bdcb48744c35f760"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#a3c1d4bfc6a81af60bdcb48744c35f760">VALUE</a></div><div class="ttdeci">unsigned long VALUE</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l00088">ruby.h:88</a></div></div> <div class="ttc" id="name2ctype_8h_html_aed1cc4dca5d94cb452f79691f54f7423"><div class="ttname"><a href="../../d3/d15/name2ctype_8h.html#aed1cc4dca5d94cb452f79691f54f7423">len</a></div><div class="ttdeci">register unsigned int len</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d15/name2ctype_8h_source.html#l22210">name2ctype.h:22210</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_aa144c65ede676549c028675fd7ef9159"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#aa144c65ede676549c028675fd7ef9159">GetCipherInit</a></div><div class="ttdeci">#define GetCipherInit(obj, ctx)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00019">ossl_cipher.c:19</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a1073221be5623b16ac67ca81aefee13f"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a1073221be5623b16ac67ca81aefee13f">ossl_cipher_pkcs5_keyivgen</a></div><div class="ttdeci">static VALUE ossl_cipher_pkcs5_keyivgen(int argc, VALUE *argv, VALUE self)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00303">ossl_cipher.c:303</a></div></div> <div class="ttc" id="random_8c_html_a742229490b6759a90ece7ba82ba129d5"><div class="ttname"><a href="../../dc/de5/random_8c.html#a742229490b6759a90ece7ba82ba129d5">key</a></div><div class="ttdeci">uint8_t key[16]</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/de5/random_8c_source.html#l01284">random.c:1284</a></div></div> <div class="ttc" id="ruby__missing_8h_html_a89ed8cb86ca6dd49d2db67adae809057"><div class="ttname"><a href="../../d8/d81/ruby__missing_8h.html#a89ed8cb86ca6dd49d2db67adae809057">rb_str_set_len</a></div><div class="ttdeci">#define rb_str_set_len(str, length)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d81/ruby__missing_8h_source.html#l00030">ruby_missing.h:30</a></div></div> <div class="ttc" id="ossl_8c_html_abdd6427ac56d2ded08a03d234b4ffc23"><div class="ttname"><a href="../../d4/d3c/ossl_8c.html#abdd6427ac56d2ded08a03d234b4ffc23">ossl_raise</a></div><div class="ttdeci">void ossl_raise(VALUE exc, const char *fmt,...)</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d3c/ossl_8c_source.html#l00324">ossl.c:324</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a2ba81577bd9ba85ce3620e92a0ffb084"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a2ba81577bd9ba85ce3620e92a0ffb084">ossl_cipher_reset</a></div><div class="ttdeci">static VALUE ossl_cipher_reset(VALUE self)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00191">ossl_cipher.c:191</a></div></div> <div class="ttc" id="ossl_8h_html_acdcc5aaebf3f273c1762f24a6ece2e5e"><div class="ttname"><a href="../../d5/dac/ossl_8h.html#acdcc5aaebf3f273c1762f24a6ece2e5e">assert</a></div><div class="ttdeci">#define assert(condition)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dac/ossl_8h_source.html#l00044">ossl.h:44</a></div></div> <div class="ttc" id="nkf-utf8_2nkf_8c_html_a8f8f80d37794cde9472343e4487ba3eb"><div class="ttname"><a href="../../d6/da0/nkf-utf8_2nkf_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a></div><div class="ttdeci">const char * name</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/da0/nkf-utf8_2nkf_8c_source.html#l00208">nkf.c:208</a></div></div> <div class="ttc" id="ossl_8h_html"><div class="ttname"><a href="../../d5/dac/ossl_8h.html">ossl.h</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_a2665a51abbd5b49c15abff3df00fa9db"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#a2665a51abbd5b49c15abff3df00fa9db">StringValuePtr</a></div><div class="ttdeci">#define StringValuePtr(v)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l00467">ruby.h:467</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a959e215d3e6c837e5218063da81e2451"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a959e215d3e6c837e5218063da81e2451">Init_ossl_cipher</a></div><div class="ttdeci">void Init_ossl_cipher(void)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00568">ossl_cipher.c:568</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_a5133348f689646af76f8fe8e0af547f5"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#a5133348f689646af76f8fe8e0af547f5">RSTRING_LENINT</a></div><div class="ttdeci">#define RSTRING_LENINT(str)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l00684">ruby.h:684</a></div></div> <div class="ttc" id="intern_8h_html_a372d6acb27d271ee4fc2e88c7022c485"><div class="ttname"><a href="../../db/d2e/intern_8h.html#a372d6acb27d271ee4fc2e88c7022c485">rb_check_frozen</a></div><div class="ttdeci">#define rb_check_frozen(obj)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d2e/intern_8h_source.html#l00242">intern.h:242</a></div></div> <div class="ttc" id="group__class_html_ga911071d40f9312e49a774ea0e1b12869"><div class="ttname"><a href="../../de/ddf/group__class.html#ga911071d40f9312e49a774ea0e1b12869">rb_define_module</a></div><div class="ttdeci">VALUE rb_define_module(const char *name)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d0c/class_8c_source.html#l00587">class.c:587</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a1699efc716bacc61af6f600133fd5700"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a1699efc716bacc61af6f600133fd5700">cCipher</a></div><div class="ttdeci">VALUE cCipher</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00036">ossl_cipher.c:36</a></div></div> <div class="ttc" id="openssl__missing_8c_html_a3d8a8829e379cd7e061120208e3a9142"><div class="ttname"><a href="../../da/d8c/openssl__missing_8c.html#a3d8a8829e379cd7e061120208e3a9142">EVP_CIPHER_CTX_copy</a></div><div class="ttdeci">int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, EVP_CIPHER_CTX *in)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d8c/openssl__missing_8c_source.html#l00121">openssl_missing.c:121</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a4b0b47e00c054161b6d1b9ff208f8b07"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a4b0b47e00c054161b6d1b9ff208f8b07">ossl_cipher_set_key</a></div><div class="ttdeci">static VALUE ossl_cipher_set_key(VALUE self, VALUE key)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00433">ossl_cipher.c:433</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a87be5f931333c594456007a09aa3eb26"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a87be5f931333c594456007a09aa3eb26">ossl_cipher_name</a></div><div class="ttdeci">static VALUE ossl_cipher_name(VALUE self)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00412">ossl_cipher.c:412</a></div></div> <div class="ttc" id="__sdbm_8c_html_a070d2ce7b6bb7e5c05602aa8c308d0c4"><div class="ttname"><a href="../../d4/db0/__sdbm_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></div><div class="ttdeci">#define NULL</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/db0/__sdbm_8c_source.html#l00107">_sdbm.c:107</a></div></div> <div class="ttc" id="group__defmethod_html_ga118dc7abcdb97f56fe35727ac0ff6eb8"><div class="ttname"><a href="../../d7/d19/group__defmethod.html#ga118dc7abcdb97f56fe35727ac0ff6eb8">rb_define_method</a></div><div class="ttdeci">void rb_define_method(VALUE klass, const char *name, VALUE(*func)(ANYARGS), int argc)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d0c/class_8c_source.html#l01210">class.c:1210</a></div></div> <div class="ttc" id="intern_8h_html_ada1577ce4242b06ff5c1c52f37f5e679"><div class="ttname"><a href="../../db/d2e/intern_8h.html#ada1577ce4242b06ff5c1c52f37f5e679">rb_str_new2</a></div><div class="ttdeci">VALUE rb_str_new2(const char *)</div></div> <div class="ttc" id="error_8c_html_aa5b1972d475e9a090c8ef607ce033008"><div class="ttname"><a href="../../db/dcc/error_8c.html#aa5b1972d475e9a090c8ef607ce033008">rb_warn</a></div><div class="ttdeci">void rb_warn(const char *fmt,...)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/dcc/error_8c_source.html#l00196">error.c:196</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a2ca7a53101be0bb28f8789e71d43505f"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a2ca7a53101be0bb28f8789e71d43505f">ossl_cipher_set_iv</a></div><div class="ttdeci">static VALUE ossl_cipher_set_iv(VALUE self, VALUE iv)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00465">ossl_cipher.c:465</a></div></div> <div class="ttc" id="error_8c_html_ab5e2a9fec766c75176fbb262bfe6a596"><div class="ttname"><a href="../../db/dcc/error_8c.html#ab5e2a9fec766c75176fbb262bfe6a596">rb_eArgError</a></div><div class="ttdeci">VALUE rb_eArgError</div><div class="ttdef"><b>Definition:</b> <a href="../../db/dcc/error_8c_source.html#l00468">error.c:468</a></div></div> <div class="ttc" id="ossl__cipher_8c_html_a8cf8a7858bbebfd54cff39d219646164"><div class="ttname"><a href="../../d3/d28/ossl__cipher_8c.html#a8cf8a7858bbebfd54cff39d219646164">ossl_cipher_free</a></div><div class="ttdeci">static void ossl_cipher_free(EVP_CIPHER_CTX *ctx)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d28/ossl__cipher_8c_source.html#l00073">ossl_cipher.c:73</a></div></div> <div class="ttc" id="ruby_8c_html_af2efa898e9eed6fe6715279cb1ec35b0"><div class="ttname"><a href="../../df/d77/ruby_8c.html#af2efa898e9eed6fe6715279cb1ec35b0">argv</a></div><div class="ttdeci">char ** argv</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d77/ruby_8c_source.html#l00121">ruby.c:121</a></div></div> <div class="ttc" id="ruby_2ruby_8h_html_a0e80f207eb41e9010ec9f0f5f9419fea"><div class="ttname"><a href="../../de/de6/ruby_2ruby_8h.html#a0e80f207eb41e9010ec9f0f5f9419fea">StringValue</a></div><div class="ttdeci">#define StringValue(v)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/de6/ruby_2ruby_8h_source.html#l00466">ruby.h:466</a></div></div> <div class="ttc" id="intern_8h_html_a48b2b873adb8b6a04254bd631c4b03c5"><div class="ttname"><a href="../../db/d2e/intern_8h.html#a48b2b873adb8b6a04254bd631c4b03c5">rb_str_new</a></div><div class="ttdeci">VALUE rb_str_new(const char *, long)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/db0/string_8c_source.html#l00410">string.c:410</a></div></div> <div class="ttc" id="intern_8h_html_ac2be7243e739fa8f5dce6be0c8ee5f6d"><div class="ttname"><a href="../../db/d2e/intern_8h.html#ac2be7243e739fa8f5dce6be0c8ee5f6d">rb_obj_class</a></div><div class="ttdeci">VALUE rb_obj_class(VALUE)</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/de1/object_8c_source.html#l00177">object.c:177</a></div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="../../doxygen.png" alt="doxygen"/> </a> 1.8.14 </small></address> </body> </html>
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