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<div class="navpath"><a class="el" href="dir_b47abd1aad201a152869566145babb61.html">src</a> » <a class="el" href="dir_3459d97d61361c9d41d467fba45f9c61.html">common</a>
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<h1>crypto.h</h1><a href="crypto_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">** This file is part of Vidalia, and is subject to the license terms in the</span>
<a name="l00003"></a>00003 <span class="comment">** LICENSE file, found in the top level directory of this distribution. If you</span>
<a name="l00004"></a>00004 <span class="comment">** did not receive the LICENSE file with this file, you may obtain it from the</span>
<a name="l00005"></a>00005 <span class="comment">** Vidalia source package distributed by the Vidalia Project at</span>
<a name="l00006"></a>00006 <span class="comment">** http://www.vidalia-project.net/. No part of Vidalia, including this file,</span>
<a name="l00007"></a>00007 <span class="comment">** may be copied, modified, propagated, or distributed except according to the</span>
<a name="l00008"></a>00008 <span class="comment">** terms described in the LICENSE file.</span>
<a name="l00009"></a>00009 <span class="comment">** </span>
<a name="l00010"></a>00010 <span class="comment">** * * *</span>
<a name="l00011"></a>00011 <span class="comment">** </span>
<a name="l00012"></a>00012 <span class="comment">** Pseudorandom number generation support in this file is derived from</span>
<a name="l00013"></a>00013 <span class="comment">** Tor's crypto.[ch]. Tor is distributed under this license.</span>
<a name="l00014"></a>00014 <span class="comment">** </span>
<a name="l00015"></a>00015 <span class="comment">** Copyright (c) 2001-2004, Roger Dingledine</span>
<a name="l00016"></a>00016 <span class="comment">** Copyright (c) 2004-2007, Roger Dingledine, Nick Mathewson</span>
<a name="l00017"></a>00017 <span class="comment">**</span>
<a name="l00018"></a>00018 <span class="comment">** Redistribution and use in source and binary forms, with or without</span>
<a name="l00019"></a>00019 <span class="comment">** modification, are permitted provided that the following conditions are</span>
<a name="l00020"></a>00020 <span class="comment">** met:</span>
<a name="l00021"></a>00021 <span class="comment">**</span>
<a name="l00022"></a>00022 <span class="comment">** * Redistributions of source code must retain the above copyright</span>
<a name="l00023"></a>00023 <span class="comment">** notice, this list of conditions and the following disclaimer.</span>
<a name="l00024"></a>00024 <span class="comment">**</span>
<a name="l00025"></a>00025 <span class="comment">** * Redistributions in binary form must reproduce the above</span>
<a name="l00026"></a>00026 <span class="comment">** copyright notice, this list of conditions and the following disclaimer</span>
<a name="l00027"></a>00027 <span class="comment">** in the documentation and/or other materials provided with the</span>
<a name="l00028"></a>00028 <span class="comment">** distribution.</span>
<a name="l00029"></a>00029 <span class="comment">** </span>
<a name="l00030"></a>00030 <span class="comment">** * Neither the names of the copyright owners nor the names of its</span>
<a name="l00031"></a>00031 <span class="comment">** contributors may be used to endorse or promote products derived from</span>
<a name="l00032"></a>00032 <span class="comment">** this software without specific prior written permission.</span>
<a name="l00033"></a>00033 <span class="comment">**</span>
<a name="l00034"></a>00034 <span class="comment">** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span>
<a name="l00035"></a>00035 <span class="comment">** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span>
<a name="l00036"></a>00036 <span class="comment">** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span>
<a name="l00037"></a>00037 <span class="comment">** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span>
<a name="l00038"></a>00038 <span class="comment">** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00039"></a>00039 <span class="comment">** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span>
<a name="l00040"></a>00040 <span class="comment">** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span>
<a name="l00041"></a>00041 <span class="comment">** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span>
<a name="l00042"></a>00042 <span class="comment">** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span>
<a name="l00043"></a>00043 <span class="comment">** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span>
<a name="l00044"></a>00044 <span class="comment">** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00045"></a>00045 <span class="comment">*/</span>
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">/*</span>
<a name="l00048"></a>00048 <span class="comment">** \file crypto.h</span>
<a name="l00049"></a>00049 <span class="comment">** \version $Id: crypto.h 3818 2009-06-06 17:46:49Z edmanm $</span>
<a name="l00050"></a>00050 <span class="comment">** \brief Provides support for pseuodrandom number generation.</span>
<a name="l00051"></a>00051 <span class="comment">*/</span>
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="preprocessor">#ifndef _CRYPTO_H</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor">#define _CRYPTO_H</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>
<a name="l00056"></a>00056 <span class="preprocessor">#include <QByteArray></span>
<a name="l00057"></a>00057 <span class="preprocessor">#include <QString></span>
<a name="l00058"></a>00058 <span class="comment"></span>
<a name="l00059"></a>00059 <span class="comment">/** Returns <b>len</b> bytes of pseudorandom data on success, or an empty</span>
<a name="l00060"></a>00060 <span class="comment"> * QByteArray on failure. This function is based on crypto_seed_rng() from</span>
<a name="l00061"></a>00061 <span class="comment"> * Tor's crypto.c. See LICENSE for details on Tor's license. */</span>
<a name="l00062"></a>00062 QByteArray <a class="code" href="crypto_8cpp.html#af199e3bfee1379c8a84f61681e41526c">crypto_rand_bytes</a>(<span class="keywordtype">int</span> len);<span class="comment"></span>
<a name="l00063"></a>00063 <span class="comment">/** Returns a pseudorandom integer, chosen uniformly from the the values in</span>
<a name="l00064"></a>00064 <span class="comment"> * the range [0, max). This function is based on crypto_rand_int() from Tor's</span>
<a name="l00065"></a>00065 <span class="comment"> * crypto.c. See LICENSE for details on Tor's license. */</span>
<a name="l00066"></a>00066 quint32 <a class="code" href="crypto_8cpp.html#a52d18a5e7e38f96cfc2a1c9cbcbf2e6c">crypto_rand_quint32</a>(quint32 max);<span class="comment"></span>
<a name="l00067"></a>00067 <span class="comment">/** Generates a pseudorandom string of length <b>len</b> containing printable</span>
<a name="l00068"></a>00068 <span class="comment"> * ASCII characters from the range '!' (0x21) to '~' (0x7e). */</span>
<a name="l00069"></a>00069 QString <a class="code" href="crypto_8cpp.html#ad16013efda05090adfc906af39e91b41">crypto_rand_string</a>(<span class="keywordtype">int</span> len);<span class="comment"></span>
<a name="l00070"></a>00070 <span class="comment">/** Generates a salted hash of <b>secret</b> using the random <b>salt</b></span>
<a name="l00071"></a>00071 <span class="comment"> * according to the iterated and salted S2K algorithm in RFC 2440. <b>c</b></span>
<a name="l00072"></a>00072 <span class="comment"> * is the one-octet coded count value that specifies how much data to hash. </span>
<a name="l00073"></a>00073 <span class="comment"> * <b>salt</b> must contain at least 8 bytes, otherwise this method will</span>
<a name="l00074"></a>00074 <span class="comment"> * return a default-constructed QByteArray. */</span>
<a name="l00075"></a>00075 QByteArray
<a name="l00076"></a>00076 <a class="code" href="crypto_8cpp.html#ac51151077f12ea463acd49abe58870a2">crypto_secret_to_key</a>(<span class="keyword">const</span> QString &secret, <span class="keyword">const</span> QByteArray &salt, quint8 c);
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="preprocessor">#endif</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span>
</pre></div></div>
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Mandriva
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