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OpenSSLCryptoHash.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  *
00005  * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights 
00006  * reserved.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  *
00012  * 1. Redistributions of source code must retain the above copyright
00013  *    notice, this list of conditions and the following disclaimer. 
00014  *
00015  * 2. Redistributions in binary form must reproduce the above copyright
00016  *    notice, this list of conditions and the following disclaimer in
00017  *    the documentation and/or other materials provided with the
00018  *    distribution.
00019  *
00020  * 3. The end-user documentation included with the redistribution,
00021  *    if any, must include the following acknowledgment:  
00022  *       "This product includes software developed by the
00023  *        Apache Software Foundation (http://www.apache.org/)."
00024  *    Alternately, this acknowledgment may appear in the software itself,
00025  *    if and wherever such third-party acknowledgments normally appear.
00026  *
00027  * 4. The names "<WebSig>" and "Apache Software Foundation" must
00028  *    not be used to endorse or promote products derived from this
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00030  *    permission, please contact apache@apache.org.
00031  *
00032  * 5. Products derived from this software may not be called "Apache",
00033  *    nor may "Apache" appear in their name, without prior written
00034  *    permission of the Apache Software Foundation.
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00036  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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00048  * ====================================================================
00049  *
00050  * This software consists of voluntary contributions made by many
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00052  * originally based on software copyright (c) 2001, Institute for
00053  * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
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00056  * For more information on the Apache Software Foundation, please see
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00058  */
00059 
00060 /*
00061  * XSEC
00062  *
00063  * OpenSSLCryptoHash := OpenSSL Implementation of SHA1
00064  *
00065  * Author(s): Berin Lautenbach
00066  *
00067  * $Id: OpenSSLCryptoHash.hpp,v 1.5 2003/07/05 10:30:33 blautenb Exp $
00068  *
00069  */
00070 
00071 #ifndef OPENSSLCRYPTOHASHSHA1_INCLUDE
00072 #define OPENSSLCRYPTOHASHSHA1_INCLUDE
00073 
00074 #include <xsec/framework/XSECDefs.hpp>
00075 #include <xsec/enc/XSECCryptoHash.hpp>
00076 
00077 // OpenSSL Includes
00078 
00079 #if defined (HAVE_OPENSSL)
00080 
00081 #   include <openssl/evp.h>
00082 
00096 class DSIG_EXPORT OpenSSLCryptoHash : public XSECCryptoHash {
00097 
00098 public :
00099 
00102 
00103     OpenSSLCryptoHash(XSECCryptoHash::HashType alg);
00104     virtual ~OpenSSLCryptoHash();
00105     
00107 
00110     
00120     virtual void        setKey(XSECCryptoKey * key) {}
00121 
00123 
00126 
00133     virtual void        reset(void);
00134 
00146     virtual void        hash(unsigned char * data, 
00147                              unsigned int length);
00160     virtual unsigned int finish(unsigned char * hash,
00161                                 unsigned int maxLength);// Finish and get hash
00162 
00164 
00167 
00176     virtual HashType getHashType(void);
00177 
00179 
00180 
00181 private:
00182 
00183     // Not implemented constructors
00184     OpenSSLCryptoHash();
00185 
00186     EVP_MD_CTX          m_mdctx;                        // Context for digest
00187     const EVP_MD        * mp_md;                        // Digest instance
00188     unsigned char       m_mdValue[EVP_MAX_MD_SIZE];     // Final output
00189     unsigned int        m_mdLen;                        // Length of digest
00190     HashType            m_hashType;                     // What type of hash is this?
00191 
00192 };
00193 
00194 #endif /* HAVE_OPENSSL */
00195 #endif /* OPENSSLCRYPTOHASHSHA1_INCLUDE */

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