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<title>XML-Security-C: OpenSSLCryptoSymmetricKey.hpp Source File</title>
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<a class="el" href="dir_000000.html">src</a> / <a class="el" href="dir_000002.html">enc</a> / <a class="el" href="dir_000003.html">OpenSSL</a></div>
<h1>OpenSSLCryptoSymmetricKey.hpp</h1><a href="OpenSSLCryptoSymmetricKey_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*</span>
00002 <span class="comment"> * Copyright 2002-2005 The Apache Software Foundation.</span>
00003 <span class="comment"> *</span>
00004 <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</span>
00005 <span class="comment"> * you may not use this file except in compliance with the License.</span>
00006 <span class="comment"> * You may obtain a copy of the License at</span>
00007 <span class="comment"> *</span>
00008 <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span>
00009 <span class="comment"> *</span>
00010 <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span>
00011 <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
00012 <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
00013 <span class="comment"> * See the License for the specific language governing permissions and</span>
00014 <span class="comment"> * limitations under the License.</span>
00015 <span class="comment"> */</span>
00016
00017 <span class="comment">/*</span>
00018 <span class="comment"> * XSEC</span>
00019 <span class="comment"> *</span>
00020 <span class="comment"> * XSECCryptoSymmetricKey := Bulk encryption algorithms should all be</span>
00021 <span class="comment"> * implemented via this interface</span>
00022 <span class="comment"> *</span>
00023 <span class="comment"> * Author(s): Berin Lautenbach</span>
00024 <span class="comment"> *</span>
00025 <span class="comment"> * $Id: OpenSSLCryptoSymmetricKey.hpp,v 1.10 2005/06/04 11:30:26 blautenb Exp $</span>
00026 <span class="comment"> *</span>
00027 <span class="comment"> */</span>
00028
00029
00030
00031 <span class="preprocessor">#ifndef OPENSSLCRYPTOSYMMETRICKEY_INCLUDE</span>
00032 <span class="preprocessor"></span><span class="preprocessor">#define OPENSSLCRYPTOSYMMETRICKEY_INCLUDE</span>
00033 <span class="preprocessor"></span>
00034 <span class="preprocessor">#include <xsec/framework/XSECDefs.hpp></span>
00035 <span class="preprocessor">#include <xsec/enc/XSECCryptoSymmetricKey.hpp></span>
00036
00037 <span class="preprocessor">#if defined (HAVE_OPENSSL)</span>
00038 <span class="preprocessor"></span>
00039 <span class="comment">// OpenSSL Includes</span>
00040
00041 <span class="preprocessor">#include <openssl/evp.h></span>
00042
<a name="l00043"></a><a class="code" href="OpenSSLCryptoSymmetricKey_8hpp.html#a0">00043</a> <span class="preprocessor">#define MAX_BLOCK_SIZE 32</span>
00044 <span class="preprocessor"></span>
<a name="l00056"></a><a class="code" href="classOpenSSLCryptoSymmetricKey.html">00056</a> <span class="keyword">class </span><a class="code" href="XSECDefs_8hpp.html#a9">DSIG_EXPORT</a> <a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a> : <span class="keyword">public</span> <a class="code" href="classXSECCryptoSymmetricKey.html">XSECCryptoSymmetricKey</a> {
00057
00058 <span class="keyword">public</span> :
00059
00062
00069 <a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a>(<a class="code" href="classXSECCryptoSymmetricKey.html#w8">XSECCryptoSymmetricKey::SymmetricKeyType</a> type);
00070
00078 <span class="keyword">virtual</span> ~<a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a>();
00079
00081
00084
00089 <span class="keyword">virtual</span> <span class="keyword">const</span> XMLCh * <a class="code" href="classXSECCryptoSymmetricKey.html#z176_1">getProviderName</a>();
00090
00099 <span class="keyword">virtual</span> <a class="code" href="classXSECCryptoKey.html">XSECCryptoKey</a> * <a class="code" href="classXSECCryptoSymmetricKey.html#z176_2">clone</a>();
00100
00102
00105
00114 SymmetricKeyType <a class="code" href="classXSECCryptoSymmetricKey.html#z177_0">getSymmetricKeyType</a>(<span class="keywordtype">void</span>);
00115
00127 <span class="keywordtype">void</span> <a class="code" href="classXSECCryptoSymmetricKey.html#z177_1">setKey</a>(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keyLen);
00128
00145 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classXSECCryptoSymmetricKey.html#z177_2">decryptInit</a>(<span class="keywordtype">bool</span> doPad = <span class="keyword">true</span>,
00146 SymmetricKeyMode mode = MODE_CBC,
00147 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * iv = NULL);
00148
00173 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classXSECCryptoSymmetricKey.html#z177_3">decrypt</a>(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * inBuf,
00174 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * plainBuf,
00175 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> inLength,
00176 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxOutLength);
00177
00197 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classXSECCryptoSymmetricKey.html#z177_4">decryptFinish</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * plainBuf,
00198 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxOutLength);
00199
00215 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classXSECCryptoSymmetricKey.html#z177_5">encryptInit</a>(<span class="keywordtype">bool</span> doPad = <span class="keyword">true</span>,
00216 SymmetricKeyMode mode = MODE_CBC,
00217 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * iv = NULL);
00218
00239 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classXSECCryptoSymmetricKey.html#z177_6">encrypt</a>(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * inBuf,
00240 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * cipherBuf,
00241 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> inLength,
00242 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxOutLength);
00243
00265 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classXSECCryptoSymmetricKey.html#z177_7">encryptFinish</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * plainBuf,
00266 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxOutLength);
00267
00269
00270 <span class="keyword">private</span>:
00271
00272 <span class="comment">// Unimplemented constructors</span>
00273
00274 <a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a>();
00275 <a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a>(<span class="keyword">const</span> <a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a> &);
00276 <a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a> & operator= (<span class="keyword">const</span> <a class="code" href="classOpenSSLCryptoSymmetricKey.html">OpenSSLCryptoSymmetricKey</a> &);
00277
00278 <span class="comment">// Private functions</span>
00279 <span class="keywordtype">int</span> decryptCtxInit(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * iv);
00280
00281 <span class="comment">// Private variables</span>
00282 SymmetricKeyType m_keyType;
00283 SymmetricKeyMode m_keyMode;
00284 EVP_CIPHER_CTX m_ctx; <span class="comment">// OpenSSL Cipher Context structure</span>
00285 <a class="code" href="classsafeBuffer.html">safeBuffer</a> m_keyBuf; <span class="comment">// Holder of the key</span>
00286 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_keyLen;
00287 <span class="keywordtype">bool</span> m_initialised; <span class="comment">// Is the context ready to work?</span>
00288 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_lastBlock[<a class="code" href="OpenSSLCryptoSymmetricKey_8hpp.html#a0">MAX_BLOCK_SIZE</a>];
00289 <span class="keywordtype">int</span> m_blockSize;
00290 <span class="keywordtype">int</span> m_ivSize;
00291 <span class="keywordtype">int</span> m_bytesInLastBlock;
00292 <span class="keywordtype">bool</span> m_ivSent; <span class="comment">// Has the IV been put in the stream</span>
00293 <span class="keywordtype">bool</span> m_doPad; <span class="comment">// Do we pad last block?</span>
00294 };
00295
00296 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_OPENSSL */</span>
00297 <span class="preprocessor">#endif </span><span class="comment">/* OPENSSLCRYPTOSYMMETRICKEY_INCLUDE */</span>
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