<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="generator" content="rustdoc">
    <meta name="description" content="Source to the Rust file `/home/travis/.cargo/registry/src/github.com-1ecc6299db9ec823/openssl-0.7.14/src/crypto/symm.rs`.">
    <meta name="keywords" content="rust, rustlang, rust-lang">

    <title>symm.rs.html -- source</title>

    <link rel="stylesheet" type="text/css" href="../../../rustdoc.css">
    <link rel="stylesheet" type="text/css" href="../../../main.css">
    

    
    
</head>
<body class="rustdoc">
    <!--[if lte IE 8]>
    <div class="warning">
        This old browser is unsupported and will most likely display funky
        things.
    </div>
    <![endif]-->

    

    <nav class="sidebar">
        
        
    </nav>

    <nav class="sub">
        <form class="search-form js-only">
            <div class="search-container">
                <input class="search-input" name="search"
                       autocomplete="off"
                       placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
                       type="search">
            </div>
        </form>
    </nav>

    <section id='main' class="content source"><pre class="line-numbers"><span id="1">  1</span>
<span id="2">  2</span>
<span id="3">  3</span>
<span id="4">  4</span>
<span id="5">  5</span>
<span id="6">  6</span>
<span id="7">  7</span>
<span id="8">  8</span>
<span id="9">  9</span>
<span id="10"> 10</span>
<span id="11"> 11</span>
<span id="12"> 12</span>
<span id="13"> 13</span>
<span id="14"> 14</span>
<span id="15"> 15</span>
<span id="16"> 16</span>
<span id="17"> 17</span>
<span id="18"> 18</span>
<span id="19"> 19</span>
<span id="20"> 20</span>
<span id="21"> 21</span>
<span id="22"> 22</span>
<span id="23"> 23</span>
<span id="24"> 24</span>
<span id="25"> 25</span>
<span id="26"> 26</span>
<span id="27"> 27</span>
<span id="28"> 28</span>
<span id="29"> 29</span>
<span id="30"> 30</span>
<span id="31"> 31</span>
<span id="32"> 32</span>
<span id="33"> 33</span>
<span id="34"> 34</span>
<span id="35"> 35</span>
<span id="36"> 36</span>
<span id="37"> 37</span>
<span id="38"> 38</span>
<span id="39"> 39</span>
<span id="40"> 40</span>
<span id="41"> 41</span>
<span id="42"> 42</span>
<span id="43"> 43</span>
<span id="44"> 44</span>
<span id="45"> 45</span>
<span id="46"> 46</span>
<span id="47"> 47</span>
<span id="48"> 48</span>
<span id="49"> 49</span>
<span id="50"> 50</span>
<span id="51"> 51</span>
<span id="52"> 52</span>
<span id="53"> 53</span>
<span id="54"> 54</span>
<span id="55"> 55</span>
<span id="56"> 56</span>
<span id="57"> 57</span>
<span id="58"> 58</span>
<span id="59"> 59</span>
<span id="60"> 60</span>
<span id="61"> 61</span>
<span id="62"> 62</span>
<span id="63"> 63</span>
<span id="64"> 64</span>
<span id="65"> 65</span>
<span id="66"> 66</span>
<span id="67"> 67</span>
<span id="68"> 68</span>
<span id="69"> 69</span>
<span id="70"> 70</span>
<span id="71"> 71</span>
<span id="72"> 72</span>
<span id="73"> 73</span>
<span id="74"> 74</span>
<span id="75"> 75</span>
<span id="76"> 76</span>
<span id="77"> 77</span>
<span id="78"> 78</span>
<span id="79"> 79</span>
<span id="80"> 80</span>
<span id="81"> 81</span>
<span id="82"> 82</span>
<span id="83"> 83</span>
<span id="84"> 84</span>
<span id="85"> 85</span>
<span id="86"> 86</span>
<span id="87"> 87</span>
<span id="88"> 88</span>
<span id="89"> 89</span>
<span id="90"> 90</span>
<span id="91"> 91</span>
<span id="92"> 92</span>
<span id="93"> 93</span>
<span id="94"> 94</span>
<span id="95"> 95</span>
<span id="96"> 96</span>
<span id="97"> 97</span>
<span id="98"> 98</span>
<span id="99"> 99</span>
<span id="100">100</span>
<span id="101">101</span>
<span id="102">102</span>
<span id="103">103</span>
<span id="104">104</span>
<span id="105">105</span>
<span id="106">106</span>
<span id="107">107</span>
<span id="108">108</span>
<span id="109">109</span>
<span id="110">110</span>
<span id="111">111</span>
<span id="112">112</span>
<span id="113">113</span>
<span id="114">114</span>
<span id="115">115</span>
<span id="116">116</span>
<span id="117">117</span>
<span id="118">118</span>
<span id="119">119</span>
<span id="120">120</span>
<span id="121">121</span>
<span id="122">122</span>
<span id="123">123</span>
<span id="124">124</span>
<span id="125">125</span>
<span id="126">126</span>
<span id="127">127</span>
<span id="128">128</span>
<span id="129">129</span>
<span id="130">130</span>
<span id="131">131</span>
<span id="132">132</span>
<span id="133">133</span>
<span id="134">134</span>
<span id="135">135</span>
<span id="136">136</span>
<span id="137">137</span>
<span id="138">138</span>
<span id="139">139</span>
<span id="140">140</span>
<span id="141">141</span>
<span id="142">142</span>
<span id="143">143</span>
<span id="144">144</span>
<span id="145">145</span>
<span id="146">146</span>
<span id="147">147</span>
<span id="148">148</span>
<span id="149">149</span>
<span id="150">150</span>
<span id="151">151</span>
<span id="152">152</span>
<span id="153">153</span>
<span id="154">154</span>
<span id="155">155</span>
<span id="156">156</span>
<span id="157">157</span>
<span id="158">158</span>
<span id="159">159</span>
<span id="160">160</span>
<span id="161">161</span>
<span id="162">162</span>
<span id="163">163</span>
<span id="164">164</span>
<span id="165">165</span>
<span id="166">166</span>
<span id="167">167</span>
<span id="168">168</span>
<span id="169">169</span>
<span id="170">170</span>
<span id="171">171</span>
<span id="172">172</span>
<span id="173">173</span>
<span id="174">174</span>
<span id="175">175</span>
<span id="176">176</span>
<span id="177">177</span>
<span id="178">178</span>
<span id="179">179</span>
<span id="180">180</span>
<span id="181">181</span>
<span id="182">182</span>
<span id="183">183</span>
<span id="184">184</span>
<span id="185">185</span>
<span id="186">186</span>
<span id="187">187</span>
<span id="188">188</span>
<span id="189">189</span>
<span id="190">190</span>
<span id="191">191</span>
<span id="192">192</span>
<span id="193">193</span>
<span id="194">194</span>
<span id="195">195</span>
<span id="196">196</span>
<span id="197">197</span>
<span id="198">198</span>
<span id="199">199</span>
<span id="200">200</span>
<span id="201">201</span>
<span id="202">202</span>
<span id="203">203</span>
<span id="204">204</span>
<span id="205">205</span>
<span id="206">206</span>
<span id="207">207</span>
<span id="208">208</span>
<span id="209">209</span>
<span id="210">210</span>
<span id="211">211</span>
<span id="212">212</span>
<span id="213">213</span>
<span id="214">214</span>
<span id="215">215</span>
<span id="216">216</span>
<span id="217">217</span>
<span id="218">218</span>
<span id="219">219</span>
<span id="220">220</span>
<span id="221">221</span>
<span id="222">222</span>
<span id="223">223</span>
<span id="224">224</span>
<span id="225">225</span>
<span id="226">226</span>
<span id="227">227</span>
<span id="228">228</span>
<span id="229">229</span>
<span id="230">230</span>
<span id="231">231</span>
<span id="232">232</span>
<span id="233">233</span>
<span id="234">234</span>
<span id="235">235</span>
<span id="236">236</span>
<span id="237">237</span>
<span id="238">238</span>
<span id="239">239</span>
<span id="240">240</span>
<span id="241">241</span>
<span id="242">242</span>
<span id="243">243</span>
<span id="244">244</span>
<span id="245">245</span>
<span id="246">246</span>
<span id="247">247</span>
<span id="248">248</span>
<span id="249">249</span>
<span id="250">250</span>
<span id="251">251</span>
<span id="252">252</span>
<span id="253">253</span>
<span id="254">254</span>
<span id="255">255</span>
<span id="256">256</span>
<span id="257">257</span>
<span id="258">258</span>
<span id="259">259</span>
<span id="260">260</span>
<span id="261">261</span>
<span id="262">262</span>
<span id="263">263</span>
<span id="264">264</span>
<span id="265">265</span>
<span id="266">266</span>
<span id="267">267</span>
<span id="268">268</span>
<span id="269">269</span>
<span id="270">270</span>
<span id="271">271</span>
<span id="272">272</span>
<span id="273">273</span>
<span id="274">274</span>
<span id="275">275</span>
<span id="276">276</span>
<span id="277">277</span>
<span id="278">278</span>
<span id="279">279</span>
<span id="280">280</span>
<span id="281">281</span>
<span id="282">282</span>
<span id="283">283</span>
<span id="284">284</span>
<span id="285">285</span>
<span id="286">286</span>
<span id="287">287</span>
<span id="288">288</span>
<span id="289">289</span>
<span id="290">290</span>
<span id="291">291</span>
<span id="292">292</span>
<span id="293">293</span>
<span id="294">294</span>
<span id="295">295</span>
<span id="296">296</span>
<span id="297">297</span>
<span id="298">298</span>
<span id="299">299</span>
<span id="300">300</span>
<span id="301">301</span>
<span id="302">302</span>
<span id="303">303</span>
<span id="304">304</span>
<span id="305">305</span>
<span id="306">306</span>
<span id="307">307</span>
<span id="308">308</span>
<span id="309">309</span>
<span id="310">310</span>
<span id="311">311</span>
<span id="312">312</span>
<span id="313">313</span>
<span id="314">314</span>
<span id="315">315</span>
<span id="316">316</span>
<span id="317">317</span>
<span id="318">318</span>
<span id="319">319</span>
<span id="320">320</span>
<span id="321">321</span>
<span id="322">322</span>
<span id="323">323</span>
<span id="324">324</span>
<span id="325">325</span>
<span id="326">326</span>
<span id="327">327</span>
<span id="328">328</span>
<span id="329">329</span>
<span id="330">330</span>
<span id="331">331</span>
<span id="332">332</span>
<span id="333">333</span>
<span id="334">334</span>
<span id="335">335</span>
<span id="336">336</span>
<span id="337">337</span>
<span id="338">338</span>
<span id="339">339</span>
<span id="340">340</span>
<span id="341">341</span>
<span id="342">342</span>
<span id="343">343</span>
<span id="344">344</span>
<span id="345">345</span>
<span id="346">346</span>
<span id="347">347</span>
<span id="348">348</span>
<span id="349">349</span>
<span id="350">350</span>
<span id="351">351</span>
<span id="352">352</span>
<span id="353">353</span>
<span id="354">354</span>
<span id="355">355</span>
<span id="356">356</span>
<span id="357">357</span>
<span id="358">358</span>
<span id="359">359</span>
<span id="360">360</span>
<span id="361">361</span>
<span id="362">362</span>
<span id="363">363</span>
<span id="364">364</span>
<span id="365">365</span>
<span id="366">366</span>
<span id="367">367</span>
<span id="368">368</span>
<span id="369">369</span>
<span id="370">370</span>
<span id="371">371</span>
<span id="372">372</span>
<span id="373">373</span>
<span id="374">374</span>
<span id="375">375</span>
<span id="376">376</span>
<span id="377">377</span>
<span id="378">378</span>
<span id="379">379</span>
<span id="380">380</span>
<span id="381">381</span>
<span id="382">382</span>
<span id="383">383</span>
<span id="384">384</span>
<span id="385">385</span>
<span id="386">386</span>
<span id="387">387</span>
<span id="388">388</span>
<span id="389">389</span>
<span id="390">390</span>
</pre><pre class='rust '>
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::<span class='ident'>repeat</span>;
<span class='kw'>use</span> <span class='ident'>libc</span>::<span class='ident'>c_int</span>;

<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>symm_internal</span>::<span class='ident'>evpc</span>;
<span class='kw'>use</span> <span class='ident'>ffi</span>;

<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>Mode</span> {
    <span class='ident'>Encrypt</span>,
    <span class='ident'>Decrypt</span>,
}

<span class='attribute'>#[<span class='ident'>allow</span>(<span class='ident'>non_camel_case_types</span>)]</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>Type</span> {
    <span class='ident'>AES_128_ECB</span>,
    <span class='ident'>AES_128_CBC</span>,
    <span class='doccomment'>/// Requires the `aes_xts` feature</span>
    <span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>&quot;aes_xts&quot;</span>)]</span>
    <span class='ident'>AES_128_XTS</span>,
    <span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>&quot;aes_ctr&quot;</span>)]</span>
    <span class='ident'>AES_128_CTR</span>,
    <span class='comment'>// AES_128_GCM,</span>
    <span class='ident'>AES_128_CFB1</span>,
    <span class='ident'>AES_128_CFB128</span>,
    <span class='ident'>AES_128_CFB8</span>,

    <span class='ident'>AES_256_ECB</span>,
    <span class='ident'>AES_256_CBC</span>,
    <span class='doccomment'>/// Requires the `aes_xts` feature</span>
    <span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>&quot;aes_xts&quot;</span>)]</span>
    <span class='ident'>AES_256_XTS</span>,
    <span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>&quot;aes_ctr&quot;</span>)]</span>
    <span class='ident'>AES_256_CTR</span>,
    <span class='comment'>// AES_256_GCM,</span>
    <span class='ident'>AES_256_CFB1</span>,
    <span class='ident'>AES_256_CFB128</span>,
    <span class='ident'>AES_256_CFB8</span>,

    <span class='ident'>DES_CBC</span>,
    <span class='ident'>DES_ECB</span>,

    <span class='ident'>RC4_128</span>,
}


<span class='doccomment'>/// Represents a symmetric cipher context.</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Crypter</span> {
    <span class='ident'>evp</span>: <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_CIPHER</span>,
    <span class='ident'>ctx</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_CIPHER_CTX</span>,
    <span class='ident'>keylen</span>: <span class='ident'>u32</span>,
    <span class='ident'>blocksize</span>: <span class='ident'>u32</span>,
}

<span class='kw'>impl</span> <span class='ident'>Crypter</span> {
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>t</span>: <span class='ident'>Type</span>) <span class='op'>-&gt;</span> <span class='ident'>Crypter</span> {
        <span class='ident'>ffi</span>::<span class='ident'>init</span>();

        <span class='kw'>let</span> <span class='ident'>ctx</span> <span class='op'>=</span> <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>EVP_CIPHER_CTX_new</span>() };
        <span class='kw'>let</span> (<span class='ident'>evp</span>, <span class='ident'>keylen</span>, <span class='ident'>blocksz</span>) <span class='op'>=</span> <span class='ident'>evpc</span>(<span class='ident'>t</span>);
        <span class='ident'>Crypter</span> {
            <span class='ident'>evp</span>: <span class='ident'>evp</span>,
            <span class='ident'>ctx</span>: <span class='ident'>ctx</span>,
            <span class='ident'>keylen</span>: <span class='ident'>keylen</span>,
            <span class='ident'>blocksize</span>: <span class='ident'>blocksz</span>,
        }
    }

    <span class='doccomment'>/**
     * Enables or disables padding. If padding is disabled, total amount of
     * data encrypted must be a multiple of block size.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>pad</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>padding</span>: <span class='ident'>bool</span>) {
        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>blocksize</span> <span class='op'>&gt;</span> <span class='number'>0</span> {
            <span class='kw'>unsafe</span> {
                <span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ident'>padding</span> {
                    <span class='number'>1</span> <span class='kw'>as</span> <span class='ident'>c_int</span>
                } <span class='kw'>else</span> {
                    <span class='number'>0</span>
                };
                <span class='ident'>ffi</span>::<span class='ident'>EVP_CIPHER_CTX_set_padding</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>, <span class='ident'>v</span>);
            }
        }
    }

    <span class='doccomment'>/**
     * Initializes this crypter.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>init</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>mode</span>: <span class='ident'>Mode</span>, <span class='ident'>key</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>iv</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>mode</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='ident'>mode</span> {
                <span class='ident'>Mode</span>::<span class='ident'>Encrypt</span> <span class='op'>=&gt;</span> <span class='number'>1</span> <span class='kw'>as</span> <span class='ident'>c_int</span>,
                <span class='ident'>Mode</span>::<span class='ident'>Decrypt</span> <span class='op'>=&gt;</span> <span class='number'>0</span> <span class='kw'>as</span> <span class='ident'>c_int</span>,
            };
            <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>key</span>.<span class='ident'>len</span>(), <span class='self'>self</span>.<span class='ident'>keylen</span> <span class='kw'>as</span> <span class='ident'>usize</span>);

            <span class='ident'>ffi</span>::<span class='ident'>EVP_CipherInit</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>, <span class='self'>self</span>.<span class='ident'>evp</span>, <span class='ident'>key</span>.<span class='ident'>as_ptr</span>(), <span class='ident'>iv</span>.<span class='ident'>as_ptr</span>(), <span class='ident'>mode</span>);
        }
    }

    <span class='doccomment'>/**
     * Update this crypter with more data to encrypt or decrypt. Returns
     * encrypted or decrypted bytes.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>update</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>data</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>sum</span> <span class='op'>=</span> <span class='ident'>data</span>.<span class='ident'>len</span>() <span class='op'>+</span> (<span class='self'>self</span>.<span class='ident'>blocksize</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>res</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='ident'>sum</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>reslen</span> <span class='op'>=</span> <span class='ident'>sum</span> <span class='kw'>as</span> <span class='ident'>c_int</span>;

            <span class='ident'>ffi</span>::<span class='ident'>EVP_CipherUpdate</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>,
                                  <span class='ident'>res</span>.<span class='ident'>as_mut_ptr</span>(),
                                  <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>reslen</span>,
                                  <span class='ident'>data</span>.<span class='ident'>as_ptr</span>(),
                                  <span class='ident'>data</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>);

            <span class='ident'>res</span>.<span class='ident'>truncate</span>(<span class='ident'>reslen</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
            <span class='ident'>res</span>
        }
    }

    <span class='doccomment'>/**
     * Finish crypting. Returns the remaining partial block of output, if any.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>finalize</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>res</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='self'>self</span>.<span class='ident'>blocksize</span> <span class='kw'>as</span> <span class='ident'>usize</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>reslen</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>blocksize</span> <span class='kw'>as</span> <span class='ident'>c_int</span>;

            <span class='ident'>ffi</span>::<span class='ident'>EVP_CipherFinal</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>, <span class='ident'>res</span>.<span class='ident'>as_mut_ptr</span>(), <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>reslen</span>);

            <span class='ident'>res</span>.<span class='ident'>truncate</span>(<span class='ident'>reslen</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
            <span class='ident'>res</span>
        }
    }
}

<span class='kw'>impl</span> <span class='ident'>Drop</span> <span class='kw'>for</span> <span class='ident'>Crypter</span> {
    <span class='kw'>fn</span> <span class='ident'>drop</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
        <span class='kw'>unsafe</span> {
            <span class='ident'>ffi</span>::<span class='ident'>EVP_CIPHER_CTX_free</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>);
        }
    }
}

<span class='doccomment'>/**
 * Encrypts data, using the specified crypter type in encrypt mode with the
 * specified key and iv; returns the resulting (encrypted) data.
 */</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>encrypt</span>(<span class='ident'>t</span>: <span class='ident'>Type</span>, <span class='ident'>key</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>iv</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>data</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
    <span class='kw'>let</span> <span class='ident'>c</span> <span class='op'>=</span> <span class='ident'>Crypter</span>::<span class='ident'>new</span>(<span class='ident'>t</span>);
    <span class='ident'>c</span>.<span class='ident'>init</span>(<span class='ident'>Mode</span>::<span class='ident'>Encrypt</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>c</span>.<span class='ident'>update</span>(<span class='ident'>data</span>);
    <span class='kw'>let</span> <span class='ident'>rest</span> <span class='op'>=</span> <span class='ident'>c</span>.<span class='ident'>finalize</span>();
    <span class='ident'>r</span>.<span class='ident'>extend</span>(<span class='ident'>rest</span>.<span class='ident'>into_iter</span>());
    <span class='ident'>r</span>
}

<span class='doccomment'>/**
 * Decrypts data, using the specified crypter type in decrypt mode with the
 * specified key and iv; returns the resulting (decrypted) data.
 */</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>decrypt</span>(<span class='ident'>t</span>: <span class='ident'>Type</span>, <span class='ident'>key</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>iv</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>data</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
    <span class='kw'>let</span> <span class='ident'>c</span> <span class='op'>=</span> <span class='ident'>Crypter</span>::<span class='ident'>new</span>(<span class='ident'>t</span>);
    <span class='ident'>c</span>.<span class='ident'>init</span>(<span class='ident'>Mode</span>::<span class='ident'>Decrypt</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>c</span>.<span class='ident'>update</span>(<span class='ident'>data</span>);
    <span class='kw'>let</span> <span class='ident'>rest</span> <span class='op'>=</span> <span class='ident'>c</span>.<span class='ident'>finalize</span>();
    <span class='ident'>r</span>.<span class='ident'>extend</span>(<span class='ident'>rest</span>.<span class='ident'>into_iter</span>());
    <span class='ident'>r</span>
}

<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span>
<span class='kw'>mod</span> <span class='ident'>tests</span> {
    <span class='kw'>use</span> <span class='ident'>serialize</span>::<span class='ident'>hex</span>::<span class='ident'>FromHex</span>;

    <span class='comment'>// Test vectors from FIPS-197:</span>
    <span class='comment'>// http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf</span>
    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes_256_ecb</span>() {
        <span class='kw'>let</span> <span class='ident'>k0</span> <span class='op'>=</span> [<span class='number'>0x00u8</span>, <span class='number'>0x01u8</span>, <span class='number'>0x02u8</span>, <span class='number'>0x03u8</span>, <span class='number'>0x04u8</span>, <span class='number'>0x05u8</span>, <span class='number'>0x06u8</span>, <span class='number'>0x07u8</span>, <span class='number'>0x08u8</span>, <span class='number'>0x09u8</span>,
                  <span class='number'>0x0au8</span>, <span class='number'>0x0bu8</span>, <span class='number'>0x0cu8</span>, <span class='number'>0x0du8</span>, <span class='number'>0x0eu8</span>, <span class='number'>0x0fu8</span>, <span class='number'>0x10u8</span>, <span class='number'>0x11u8</span>, <span class='number'>0x12u8</span>, <span class='number'>0x13u8</span>,
                  <span class='number'>0x14u8</span>, <span class='number'>0x15u8</span>, <span class='number'>0x16u8</span>, <span class='number'>0x17u8</span>, <span class='number'>0x18u8</span>, <span class='number'>0x19u8</span>, <span class='number'>0x1au8</span>, <span class='number'>0x1bu8</span>, <span class='number'>0x1cu8</span>, <span class='number'>0x1du8</span>,
                  <span class='number'>0x1eu8</span>, <span class='number'>0x1fu8</span>];
        <span class='kw'>let</span> <span class='ident'>p0</span> <span class='op'>=</span> [<span class='number'>0x00u8</span>, <span class='number'>0x11u8</span>, <span class='number'>0x22u8</span>, <span class='number'>0x33u8</span>, <span class='number'>0x44u8</span>, <span class='number'>0x55u8</span>, <span class='number'>0x66u8</span>, <span class='number'>0x77u8</span>, <span class='number'>0x88u8</span>, <span class='number'>0x99u8</span>,
                  <span class='number'>0xaau8</span>, <span class='number'>0xbbu8</span>, <span class='number'>0xccu8</span>, <span class='number'>0xddu8</span>, <span class='number'>0xeeu8</span>, <span class='number'>0xffu8</span>];
        <span class='kw'>let</span> <span class='ident'>c0</span> <span class='op'>=</span> [<span class='number'>0x8eu8</span>, <span class='number'>0xa2u8</span>, <span class='number'>0xb7u8</span>, <span class='number'>0xcau8</span>, <span class='number'>0x51u8</span>, <span class='number'>0x67u8</span>, <span class='number'>0x45u8</span>, <span class='number'>0xbfu8</span>, <span class='number'>0xeau8</span>, <span class='number'>0xfcu8</span>,
                  <span class='number'>0x49u8</span>, <span class='number'>0x90u8</span>, <span class='number'>0x4bu8</span>, <span class='number'>0x49u8</span>, <span class='number'>0x60u8</span>, <span class='number'>0x89u8</span>];
        <span class='kw'>let</span> <span class='ident'>c</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>Crypter</span>::<span class='ident'>new</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_256_ECB</span>);
        <span class='ident'>c</span>.<span class='ident'>init</span>(<span class='kw'>super</span>::<span class='ident'>Mode</span>::<span class='ident'>Encrypt</span>, <span class='kw-2'>&amp;</span><span class='ident'>k0</span>, <span class='kw-2'>&amp;</span>[]);
        <span class='ident'>c</span>.<span class='ident'>pad</span>(<span class='bool-val'>false</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r0</span> <span class='op'>=</span> <span class='ident'>c</span>.<span class='ident'>update</span>(<span class='kw-2'>&amp;</span><span class='ident'>p0</span>);
        <span class='ident'>r0</span>.<span class='ident'>extend</span>(<span class='ident'>c</span>.<span class='ident'>finalize</span>().<span class='ident'>into_iter</span>());
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>r0</span> <span class='op'>==</span> <span class='ident'>c0</span>);
        <span class='ident'>c</span>.<span class='ident'>init</span>(<span class='kw'>super</span>::<span class='ident'>Mode</span>::<span class='ident'>Decrypt</span>, <span class='kw-2'>&amp;</span><span class='ident'>k0</span>, <span class='kw-2'>&amp;</span>[]);
        <span class='ident'>c</span>.<span class='ident'>pad</span>(<span class='bool-val'>false</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>p1</span> <span class='op'>=</span> <span class='ident'>c</span>.<span class='ident'>update</span>(<span class='kw-2'>&amp;</span><span class='ident'>r0</span>);
        <span class='ident'>p1</span>.<span class='ident'>extend</span>(<span class='ident'>c</span>.<span class='ident'>finalize</span>().<span class='ident'>into_iter</span>());
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>p1</span> <span class='op'>==</span> <span class='ident'>p0</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes_256_cbc_decrypt</span>() {
        <span class='kw'>let</span> <span class='ident'>cr</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>Crypter</span>::<span class='ident'>new</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_256_CBC</span>);
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> [<span class='number'>4_u8</span>, <span class='number'>223_u8</span>, <span class='number'>153_u8</span>, <span class='number'>219_u8</span>, <span class='number'>28_u8</span>, <span class='number'>142_u8</span>, <span class='number'>234_u8</span>, <span class='number'>68_u8</span>, <span class='number'>227_u8</span>, <span class='number'>69_u8</span>,
                  <span class='number'>98_u8</span>, <span class='number'>107_u8</span>, <span class='number'>208_u8</span>, <span class='number'>14_u8</span>, <span class='number'>236_u8</span>, <span class='number'>60_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>,
                  <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>, <span class='number'>0_u8</span>];
        <span class='kw'>let</span> <span class='ident'>data</span> <span class='op'>=</span> [<span class='number'>143_u8</span>, <span class='number'>210_u8</span>, <span class='number'>75_u8</span>, <span class='number'>63_u8</span>, <span class='number'>214_u8</span>, <span class='number'>179_u8</span>, <span class='number'>155_u8</span>, <span class='number'>241_u8</span>, <span class='number'>242_u8</span>, <span class='number'>31_u8</span>,
                    <span class='number'>154_u8</span>, <span class='number'>56_u8</span>, <span class='number'>198_u8</span>, <span class='number'>145_u8</span>, <span class='number'>192_u8</span>, <span class='number'>64_u8</span>, <span class='number'>2_u8</span>, <span class='number'>245_u8</span>, <span class='number'>167_u8</span>, <span class='number'>220_u8</span>,
                    <span class='number'>55_u8</span>, <span class='number'>119_u8</span>, <span class='number'>233_u8</span>, <span class='number'>136_u8</span>, <span class='number'>139_u8</span>, <span class='number'>27_u8</span>, <span class='number'>71_u8</span>, <span class='number'>242_u8</span>, <span class='number'>119_u8</span>, <span class='number'>175_u8</span>,
                    <span class='number'>65_u8</span>, <span class='number'>207_u8</span>];
        <span class='kw'>let</span> <span class='ident'>ciphered_data</span> <span class='op'>=</span> [<span class='number'>0x4a_u8</span>, <span class='number'>0x2e_u8</span>, <span class='number'>0xe5_u8</span>, <span class='number'>0x6_u8</span>, <span class='number'>0xbf_u8</span>, <span class='number'>0xcf_u8</span>, <span class='number'>0xf2_u8</span>,
                             <span class='number'>0xd7_u8</span>, <span class='number'>0xea_u8</span>, <span class='number'>0x2d_u8</span>, <span class='number'>0xb1_u8</span>, <span class='number'>0x85_u8</span>, <span class='number'>0x6c_u8</span>, <span class='number'>0x93_u8</span>,
                             <span class='number'>0x65_u8</span>, <span class='number'>0x6f_u8</span>];
        <span class='ident'>cr</span>.<span class='ident'>init</span>(<span class='kw'>super</span>::<span class='ident'>Mode</span>::<span class='ident'>Decrypt</span>, <span class='kw-2'>&amp;</span><span class='ident'>data</span>, <span class='kw-2'>&amp;</span><span class='ident'>iv</span>);
        <span class='ident'>cr</span>.<span class='ident'>pad</span>(<span class='bool-val'>false</span>);
        <span class='kw'>let</span> <span class='ident'>unciphered_data_1</span> <span class='op'>=</span> <span class='ident'>cr</span>.<span class='ident'>update</span>(<span class='kw-2'>&amp;</span><span class='ident'>ciphered_data</span>);
        <span class='kw'>let</span> <span class='ident'>unciphered_data_2</span> <span class='op'>=</span> <span class='ident'>cr</span>.<span class='ident'>finalize</span>();

        <span class='kw'>let</span> <span class='ident'>expected_unciphered_data</span> <span class='op'>=</span> <span class='string'>b&quot;I love turtles.\x01&quot;</span>;

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>unciphered_data_2</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span>);

        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>unciphered_data_1</span>, <span class='ident'>expected_unciphered_data</span>);
    }

    <span class='kw'>fn</span> <span class='ident'>cipher_test</span>(<span class='ident'>ciphertype</span>: <span class='kw'>super</span>::<span class='ident'>Type</span>, <span class='ident'>pt</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>, <span class='ident'>ct</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>, <span class='ident'>key</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>, <span class='ident'>iv</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) {
        <span class='kw'>use</span> <span class='ident'>serialize</span>::<span class='ident'>hex</span>::<span class='ident'>ToHex</span>;

        <span class='kw'>let</span> <span class='ident'>cipher</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>Crypter</span>::<span class='ident'>new</span>(<span class='ident'>ciphertype</span>);
        <span class='ident'>cipher</span>.<span class='ident'>init</span>(<span class='kw'>super</span>::<span class='ident'>Mode</span>::<span class='ident'>Encrypt</span>,
                    <span class='kw-2'>&amp;</span><span class='ident'>key</span>.<span class='ident'>from_hex</span>().<span class='ident'>unwrap</span>(),
                    <span class='kw-2'>&amp;</span><span class='ident'>iv</span>.<span class='ident'>from_hex</span>().<span class='ident'>unwrap</span>());

        <span class='kw'>let</span> <span class='ident'>expected</span> <span class='op'>=</span> <span class='ident'>ct</span>.<span class='ident'>from_hex</span>().<span class='ident'>unwrap</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>computed</span> <span class='op'>=</span> <span class='ident'>cipher</span>.<span class='ident'>update</span>(<span class='kw-2'>&amp;</span><span class='ident'>pt</span>.<span class='ident'>from_hex</span>().<span class='ident'>unwrap</span>());
        <span class='ident'>computed</span>.<span class='ident'>extend</span>(<span class='ident'>cipher</span>.<span class='ident'>finalize</span>().<span class='ident'>into_iter</span>());

        <span class='kw'>if</span> <span class='ident'>computed</span> <span class='op'>!=</span> <span class='ident'>expected</span> {
            <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>&quot;Computed: {}&quot;</span>, <span class='ident'>computed</span>.<span class='ident'>to_hex</span>());
            <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>&quot;Expected: {}&quot;</span>, <span class='ident'>expected</span>.<span class='ident'>to_hex</span>());
            <span class='kw'>if</span> <span class='ident'>computed</span>.<span class='ident'>len</span>() <span class='op'>!=</span> <span class='ident'>expected</span>.<span class='ident'>len</span>() {
                <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>&quot;Lengths differ: {} in computed vs {} expected&quot;</span>,
                         <span class='ident'>computed</span>.<span class='ident'>len</span>(),
                         <span class='ident'>expected</span>.<span class='ident'>len</span>());
            }
            <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;test failure&quot;</span>);
        }
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_rc4</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;0000000000000000000000000000000000000000000000000000000000000000000000000000&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;A68686B04D686AA107BD8D4CAB191A3EEC0A6294BC78B60F65C25CB47BD7BB3A48EFC4D26BE4&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;97CD440324DA5FD1F7955C1C13B6B466&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>RC4_128</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>&quot;aes_xts&quot;</span>)]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes256_xts</span>() {
        <span class='comment'>// Test case 174 from</span>
        <span class='comment'>// http://csrc.nist.gov/groups/STM/cavp/documents/aes/XTSTestVectors.zip</span>
        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;77f4ef63d734ebd028508da66c22cdebdd52ecd6ee2ab0a50bc8ad0cfd692ca5fcd4e6dedc45df7f\
                  6503f462611dc542&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;ce7d905a7776ac72f240d22aafed5e4eb7566cdc7211220e970da634ce015f131a5ecb8d400bc9e8\
                  4f0b81d8725dbbc7&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;b6bfef891f83b5ff073f2231267be51eb084b791fa19a154399c0684c8b2dfcb37de77d28bbda3b\
                   4180026ad640b74243b3133e7b9fae629403f6733423dae28&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;db200efb7eaaa737dbdf40babb68953f&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_256_XTS</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>&quot;aes_ctr&quot;</span>)]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes128_ctr</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;6BC1BEE22E409F96E93D7E117393172AAE2D8A571E03AC9C9EB76FAC45AF8E5130C81C46A35CE411\
                  E5FBC1191A0A52EFF69F2445DF4F9B17AD2B417BE66C3710&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;874D6191B620E3261BEF6864990DB6CE9806F66B7970FDFF8617187BB9FFFDFF5AE4DF3EDBD5D35E\
                  5B4F09020DB03EAB1E031DDA2FBE03D1792170A0F3009CEE&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;2B7E151628AED2A6ABF7158809CF4F3C&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_128_CTR</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='comment'>// #[test]</span>
    <span class='comment'>// fn test_aes128_gcm() {</span>
    <span class='comment'>// Test case 3 in GCM spec</span>
    <span class='comment'>// let pt = ~&quot;d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255&quot;;</span>
    <span class='comment'>// let ct = ~&quot;42831ec2217774244b7221b784d0d49ce3aa212f2c02a4e035c17e2329aca12e21d514b25466931c7d8f6a5aac84aa051ba30b396a0aac973d58e091473f59854d5c2af327cd64a62cf35abd2ba6fab4&quot;;</span>
    <span class='comment'>// let key = ~&quot;feffe9928665731c6d6a8f9467308308&quot;;</span>
    <span class='comment'>// let iv = ~&quot;cafebabefacedbaddecaf888&quot;;</span>
    <span class='comment'>//</span>
    <span class='comment'>// cipher_test(super::AES_128_GCM, pt, ct, key, iv);</span>
    <span class='comment'>// }</span>

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes128_cfb1</span>() {
        <span class='comment'>// Lifted from http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf</span>

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;6bc1&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;68b3&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;2b7e151628aed2a6abf7158809cf4f3c&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;000102030405060708090a0b0c0d0e0f&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_128_CFB1</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes128_cfb128</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;6bc1bee22e409f96e93d7e117393172a&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;3b3fd92eb72dad20333449f8e83cfb4a&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;2b7e151628aed2a6abf7158809cf4f3c&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;000102030405060708090a0b0c0d0e0f&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_128_CFB128</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes128_cfb8</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;6bc1bee22e409f96e93d7e117393172aae2d&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;3b79424c9c0dd436bace9e0ed4586a4f32b9&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;2b7e151628aed2a6abf7158809cf4f3c&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;000102030405060708090a0b0c0d0e0f&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_128_CFB8</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes256_cfb1</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;6bc1&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;9029&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;000102030405060708090a0b0c0d0e0f&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_256_CFB1</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes256_cfb128</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;6bc1bee22e409f96e93d7e117393172a&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;dc7e84bfda79164b7ecd8486985d3860&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;000102030405060708090a0b0c0d0e0f&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_256_CFB128</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_aes256_cfb8</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;6bc1bee22e409f96e93d7e117393172aae2d&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;dc1f1a8520a64db55fcc8ac554844e889700&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;000102030405060708090a0b0c0d0e0f&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>AES_256_CFB8</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_des_cbc</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;54686973206973206120746573742e&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;6f2867cfefda048a4046ef7e556c7132&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;7cb66337f3d3c0fe&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;0001020304050607&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>DES_CBC</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_des_ecb</span>() {

        <span class='kw'>let</span> <span class='ident'>pt</span> <span class='op'>=</span> <span class='string'>&quot;54686973206973206120746573742e&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>&quot;0050ab8aecec758843fe157b4dde938c&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>&quot;7cb66337f3d3c0fe&quot;</span>;
        <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>&quot;0001020304050607&quot;</span>;

        <span class='ident'>cipher_test</span>(<span class='kw'>super</span>::<span class='ident'>Type</span>::<span class='ident'>DES_ECB</span>, <span class='ident'>pt</span>, <span class='ident'>ct</span>, <span class='ident'>key</span>, <span class='ident'>iv</span>);
    }
}
</pre>
</section>
    <section id='search' class="content hidden"></section>

    <section class="footer"></section>

    <aside id="help" class="hidden">
        <div>
            <h1 class="hidden">Help</h1>

            <div class="shortcuts">
                <h2>Keyboard Shortcuts</h2>

                <dl>
                    <dt>?</dt>
                    <dd>Show this help dialog</dd>
                    <dt>S</dt>
                    <dd>Focus the search field</dd>
                    <dt>&larrb;</dt>
                    <dd>Move up in search results</dd>
                    <dt>&rarrb;</dt>
                    <dd>Move down in search results</dd>
                    <dt>&#9166;</dt>
                    <dd>Go to active search result</dd>
                    <dt>+</dt>
                    <dd>Collapse/expand all sections</dd>
                </dl>
            </div>

            <div class="infos">
                <h2>Search Tricks</h2>

                <p>
                    Prefix searches with a type followed by a colon (e.g.
                    <code>fn:</code>) to restrict the search to a given type.
                </p>

                <p>
                    Accepted types are: <code>fn</code>, <code>mod</code>,
                    <code>struct</code>, <code>enum</code>,
                    <code>trait</code>, <code>type</code>, <code>macro</code>,
                    and <code>const</code>.
                </p>

                <p>
                    Search functions by type signature (e.g.
                    <code>vec -> usize</code> or <code>* -> vec</code>)
                </p>
            </div>
        </div>
    </aside>

    

    <script>
        window.rootPath = "../../../";
        window.currentCrate = "openssl";
        window.playgroundUrl = "";
    </script>
    <script src="../../../jquery.js"></script>
    <script src="../../../main.js"></script>
    
    <script defer src="../../../search-index.js"></script>
</body>
</html>