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<h1>keyDerivation.h</h1><a href="keyDerivation_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"> * anytun</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * The secure anycast tunneling protocol (satp) defines a protocol used</span>
<a name="l00005"></a>00005 <span class="comment"> * for communication between any combination of unicast and anycast</span>
<a name="l00006"></a>00006 <span class="comment"> * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel</span>
<a name="l00007"></a>00007 <span class="comment"> * mode and allows tunneling of every ETHER TYPE protocol (e.g.</span>
<a name="l00008"></a>00008 <span class="comment"> * ethernet, ip, arp ...). satp directly includes cryptography and</span>
<a name="l00009"></a>00009 <span class="comment"> * message authentication based on the methodes used by SRTP. It is</span>
<a name="l00010"></a>00010 <span class="comment"> * intended to deliver a generic, scaleable and secure solution for</span>
<a name="l00011"></a>00011 <span class="comment"> * tunneling and relaying of packets of any protocol.</span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> *</span>
<a name="l00014"></a>00014 <span class="comment"> * Copyright (C) 2007 anytun.org <satp@wirdorange.org></span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * This program is free software; you can redistribute it and/or modify</span>
<a name="l00017"></a>00017 <span class="comment"> * it under the terms of the GNU General Public License version 2</span>
<a name="l00018"></a>00018 <span class="comment"> * as published by the Free Software Foundation.</span>
<a name="l00019"></a>00019 <span class="comment"> *</span>
<a name="l00020"></a>00020 <span class="comment"> * This program is distributed in the hope that it will be useful,</span>
<a name="l00021"></a>00021 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00022"></a>00022 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00023"></a>00023 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00024"></a>00024 <span class="comment"> *</span>
<a name="l00025"></a>00025 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
<a name="l00026"></a>00026 <span class="comment"> * along with this program (see the file COPYING included with this</span>
<a name="l00027"></a>00027 <span class="comment"> * distribution); if not, write to the Free Software Foundation, Inc.,</span>
<a name="l00028"></a>00028 <span class="comment"> * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00029"></a>00029 <span class="comment"> */</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#ifndef _KEYDERIVATION_H_</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define _KEYDERIVATION_H_</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "<a class="code" href="datatypes_8h.html">datatypes.h</a>"</span>
<a name="l00035"></a>00035 <span class="preprocessor">#include "<a class="code" href="buffer_8h.html">buffer.h</a>"</span>
<a name="l00036"></a>00036
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00039"></a>00039 <span class="preprocessor"> #include <gcrypt.h></span>
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041
<a name="l00042"></a>00042
<a name="l00043"></a><a class="code" href="keyDerivation_8h.html#4829fcd87054af9b3ced79bbac1ce1eb">00043</a> <span class="keyword">typedef</span> <span class="keyword">enum</span> {
<a name="l00044"></a>00044 <a class="code" href="keyDerivation_8h.html#4829fcd87054af9b3ced79bbac1ce1eb4cece0d357861fb1d1b4087f05284543">label_satp_encryption</a> = 0x00,
<a name="l00045"></a>00045 <a class="code" href="keyDerivation_8h.html#4829fcd87054af9b3ced79bbac1ce1ebd45276cca55df72c149b44bbf80757c3">label_satp_msg_auth</a> = 0x01,
<a name="l00046"></a>00046 <a class="code" href="keyDerivation_8h.html#4829fcd87054af9b3ced79bbac1ce1eb78eb4c963e5ca87676c0a713e2fd9aa4">label_satp_salt</a> = 0x02,
<a name="l00047"></a>00047 } <a class="code" href="keyDerivation_8h.html#4829fcd87054af9b3ced79bbac1ce1eb">satp_prf_label</a>;
<a name="l00048"></a>00048
<a name="l00049"></a><a class="code" href="classKeyDerivation.html">00049</a> <span class="keyword">class </span><a class="code" href="classKeyDerivation.html">KeyDerivation</a>
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 <span class="keyword">public</span>:
<a name="l00052"></a><a class="code" href="classKeyDerivation.html#07c3735d1b2e1285b6c427a2706ebc67">00052</a> <a class="code" href="classKeyDerivation.html#07c3735d1b2e1285b6c427a2706ebc67">KeyDerivation</a>() : <a class="code" href="classKeyDerivation.html#426dcd34d3b60191a3db55dd970eeb17">ld_kdr_</a>(-1), <a class="code" href="classKeyDerivation.html#6b7dd9a922de96a8f76cf6c453adab28">cipher_</a>(NULL) {};
<a name="l00053"></a><a class="code" href="classKeyDerivation.html#ccce2c32370be2388ca0a977fef1f6cc">00053</a> <span class="keyword">virtual</span> <a class="code" href="classKeyDerivation.html#ccce2c32370be2388ca0a977fef1f6cc">~KeyDerivation</a>() {};
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keywordtype">void</span> <a class="code" href="classKeyDerivation.html#5f03e97de1a041f6012d1fcfabf13773">init</a>(<a class="code" href="classBuffer.html">Buffer</a> key, <a class="code" href="classBuffer.html">Buffer</a> salt);
<a name="l00056"></a>00056 <span class="keywordtype">void</span> <a class="code" href="classKeyDerivation.html#b055afc0de04a6e32631e42f09b32e63">setLogKDRate</a>(<span class="keyword">const</span> <a class="code" href="datatypes_8h.html#40a40c6e9649a4e3806e76fef247d241">u_int8_t</a> ld_rate);
<a name="l00057"></a>00057 <span class="keywordtype">void</span> <a class="code" href="classKeyDerivation.html#6d319febcad73d199fe8773ae614f70a">generate</a>(<a class="code" href="keyDerivation_8h.html#4829fcd87054af9b3ced79bbac1ce1eb">satp_prf_label</a> label, <a class="code" href="datatypes_8h.html#317be74a3176b4149a817241bd69f9b2">seq_nr_t</a> seq_nr, <a class="code" href="classBuffer.html">Buffer</a>& key, <a class="code" href="datatypes_8h.html#1382fcaa92d837ce7c0961788c8243d7">u_int32_t</a> length);
<a name="l00058"></a>00058 <span class="keywordtype">void</span> <a class="code" href="classKeyDerivation.html#8d8c405ee7c3753b4807b36a8cbe537a">clear</a>();
<a name="l00059"></a>00059
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keyword">protected</span>:
<a name="l00062"></a><a class="code" href="classKeyDerivation.html#426dcd34d3b60191a3db55dd970eeb17">00062</a> <a class="code" href="datatypes_8h.html#ef44329758059c91c76d334e8fc09700">int8_t</a> <a class="code" href="classKeyDerivation.html#426dcd34d3b60191a3db55dd970eeb17">ld_kdr_</a>; <span class="comment">// ld(key_derivation_rate)</span>
<a name="l00063"></a><a class="code" href="classKeyDerivation.html#52e057f1085920a61ea44c5c9936865c">00063</a> <a class="code" href="classBuffer.html">Buffer</a> <a class="code" href="classKeyDerivation.html#52e057f1085920a61ea44c5c9936865c">salt_</a>;
<a name="l00064"></a><a class="code" href="classKeyDerivation.html#2091534e962a9d0f7b3b034150d33333">00064</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classKeyDerivation.html#2091534e962a9d0f7b3b034150d33333">MIN_GCRYPT_VERSION</a>;
<a name="l00065"></a>00065
<a name="l00066"></a><a class="code" href="classKeyDerivation.html#6b7dd9a922de96a8f76cf6c453adab28">00066</a> gcry_cipher_hd_t <a class="code" href="classKeyDerivation.html#6b7dd9a922de96a8f76cf6c453adab28">cipher_</a>;
<a name="l00067"></a>00067 };
<a name="l00068"></a>00068
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="preprocessor">#endif</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Dec 3 11:49:24 2007 for anytun by
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