<!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"> 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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'>"aes_xts"</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'>"aes_ctr"</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'>"aes_xts"</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'>"aes_ctr"</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'>-></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'>&</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'>></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'>&</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'>&</span>[<span class='ident'>u8</span>], <span class='ident'>iv</span>: <span class='kw-2'>&</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'>=></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'>=></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'>&</span><span class='self'>self</span>, <span class='ident'>data</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></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'><</span><span class='ident'>Vec</span><span class='op'><</span>_<span class='op'>>></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'>&</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'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></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'><</span><span class='ident'>Vec</span><span class='op'><</span>_<span class='op'>>></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'>&</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'>&</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'>&</span>[<span class='ident'>u8</span>], <span class='ident'>iv</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>], <span class='ident'>data</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></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'>&</span>[<span class='ident'>u8</span>], <span class='ident'>iv</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>], <span class='ident'>data</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></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'>&</span><span class='ident'>k0</span>, <span class='kw-2'>&</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'>&</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'>&</span><span class='ident'>k0</span>, <span class='kw-2'>&</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'>&</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'>&</span><span class='ident'>data</span>, <span class='kw-2'>&</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'>&</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"I love turtles.\x01"</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'>&</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'>&</span><span class='ident'>str</span>, <span class='ident'>ct</span>: <span class='kw-2'>&</span><span class='ident'>str</span>, <span class='ident'>key</span>: <span class='kw-2'>&</span><span class='ident'>str</span>, <span class='ident'>iv</span>: <span class='kw-2'>&</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'>&</span><span class='ident'>key</span>.<span class='ident'>from_hex</span>().<span class='ident'>unwrap</span>(), <span class='kw-2'>&</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'>&</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'>"Computed: {}"</span>, <span class='ident'>computed</span>.<span class='ident'>to_hex</span>()); <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"Expected: {}"</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'>"Lengths differ: {} in computed vs {} expected"</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'>"test failure"</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'>"0000000000000000000000000000000000000000000000000000000000000000000000000000"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"A68686B04D686AA107BD8D4CAB191A3EEC0A6294BC78B60F65C25CB47BD7BB3A48EFC4D26BE4"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"97CD440324DA5FD1F7955C1C13B6B466"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>""</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'>"aes_xts"</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'>"77f4ef63d734ebd028508da66c22cdebdd52ecd6ee2ab0a50bc8ad0cfd692ca5fcd4e6dedc45df7f\ 6503f462611dc542"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"ce7d905a7776ac72f240d22aafed5e4eb7566cdc7211220e970da634ce015f131a5ecb8d400bc9e8\ 4f0b81d8725dbbc7"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"b6bfef891f83b5ff073f2231267be51eb084b791fa19a154399c0684c8b2dfcb37de77d28bbda3b\ 4180026ad640b74243b3133e7b9fae629403f6733423dae28"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"db200efb7eaaa737dbdf40babb68953f"</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'>"aes_ctr"</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'>"6BC1BEE22E409F96E93D7E117393172AAE2D8A571E03AC9C9EB76FAC45AF8E5130C81C46A35CE411\ E5FBC1191A0A52EFF69F2445DF4F9B17AD2B417BE66C3710"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"874D6191B620E3261BEF6864990DB6CE9806F66B7970FDFF8617187BB9FFFDFF5AE4DF3EDBD5D35E\ 5B4F09020DB03EAB1E031DDA2FBE03D1792170A0F3009CEE"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"2B7E151628AED2A6ABF7158809CF4F3C"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF"</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 = ~"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255";</span> <span class='comment'>// let ct = ~"42831ec2217774244b7221b784d0d49ce3aa212f2c02a4e035c17e2329aca12e21d514b25466931c7d8f6a5aac84aa051ba30b396a0aac973d58e091473f59854d5c2af327cd64a62cf35abd2ba6fab4";</span> <span class='comment'>// let key = ~"feffe9928665731c6d6a8f9467308308";</span> <span class='comment'>// let iv = ~"cafebabefacedbaddecaf888";</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'>"6bc1"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"68b3"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"2b7e151628aed2a6abf7158809cf4f3c"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"000102030405060708090a0b0c0d0e0f"</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'>"6bc1bee22e409f96e93d7e117393172a"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"3b3fd92eb72dad20333449f8e83cfb4a"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"2b7e151628aed2a6abf7158809cf4f3c"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"000102030405060708090a0b0c0d0e0f"</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'>"6bc1bee22e409f96e93d7e117393172aae2d"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"3b79424c9c0dd436bace9e0ed4586a4f32b9"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"2b7e151628aed2a6abf7158809cf4f3c"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"000102030405060708090a0b0c0d0e0f"</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'>"6bc1"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"9029"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"000102030405060708090a0b0c0d0e0f"</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'>"6bc1bee22e409f96e93d7e117393172a"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"dc7e84bfda79164b7ecd8486985d3860"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"000102030405060708090a0b0c0d0e0f"</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'>"6bc1bee22e409f96e93d7e117393172aae2d"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"dc1f1a8520a64db55fcc8ac554844e889700"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"000102030405060708090a0b0c0d0e0f"</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'>"54686973206973206120746573742e"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"6f2867cfefda048a4046ef7e556c7132"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"7cb66337f3d3c0fe"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"0001020304050607"</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'>"54686973206973206120746573742e"</span>; <span class='kw'>let</span> <span class='ident'>ct</span> <span class='op'>=</span> <span class='string'>"0050ab8aecec758843fe157b4dde938c"</span>; <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='string'>"7cb66337f3d3c0fe"</span>; <span class='kw'>let</span> <span class='ident'>iv</span> <span class='op'>=</span> <span class='string'>"0001020304050607"</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>); 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