blautenb 2003/09/15 04:53:37
Added: c/src/xenc/impl XENCAlgorithmHandlerDefault.hpp
XENCAlgorithmHandlerDefault.cpp
Log:
Default handler for Encryption algorithm URIs
Revision Changes Path
1.1
xml-security/c/src/xenc/impl/XENCAlgorithmHandlerDefault.hpp
Index: XENCAlgorithmHandlerDefault.hpp
===================================================================
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2002-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "<WebSig>" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2001, Institute for
* Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
* The development of this software was partly funded by the European
* Commission in the <WebSig> project in the ISIS Programme.
* For more information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/*
* XSEC
*
* XSECAlgorithmHandlerDefault := Interface class to define handling of
* default
encryption algorithms
*
* $Id: XENCAlgorithmHandlerDefault.hpp,v 1.1 2003/09/15 11:53:37 blautenb
Exp $
*
*/
#ifndef XENCALGHANDLERDEFAULT_INCLUDE
#define XENCALGHANDLERDEFAULT_INCLUDE
// XSEC Includes
#include <xsec/framework/XSECDefs.hpp>
#include <xsec/framework/XSECAlgorithmHandler.hpp>
class TXFMChain;
class XENCEncryptionMethod;
class XSECCryptoKey;
// Xerces
class XENCAlgorithmHandlerDefault : public XSECAlgorithmHandler {
public:
virtual ~XENCAlgorithmHandlerDefault() {};
virtual bool decryptToSafeBuffer(
TXFMChain * cipherText,
XENCEncryptionMethod * encryptionMethod,
XSECCryptoKey * key,
XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument * doc,
safeBuffer & result
);
virtual bool encryptToSafeBuffer(
TXFMChain * plainText,
XENCEncryptionMethod * encryptionMethod,
XSECCryptoKey * key,
XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument * doc,
safeBuffer & result
);
virtual XSECAlgorithmHandler * clone(void) const;
private:
void mapURIToKey(const XMLCh * uri, XSECCryptoKey * key);
};
/[EMAIL PROTECTED]/
#endif /* XENCALGHANDLERDEFAULT_INCLUDE */
1.1
xml-security/c/src/xenc/impl/XENCAlgorithmHandlerDefault.cpp
Index: XENCAlgorithmHandlerDefault.cpp
===================================================================
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2002-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "<WebSig>" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2001, Institute for
* Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
* The development of this software was partly funded by the European
* Commission in the <WebSig> project in the ISIS Programme.
* For more information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/*
* XSEC
*
* XSECAlgorithmHandlerDefault := Interface class to define handling of
* default
encryption algorithms
*
* $Id: XENCAlgorithmHandlerDefault.cpp,v 1.1 2003/09/15 11:53:37 blautenb
Exp $
*
*/
// XSEC Includes
#include <xsec/framework/XSECDefs.hpp>
#include <xsec/transformers/TXFMChain.hpp>
#include <xsec/transformers/TXFMCipher.hpp>
#include <xsec/transformers/TXFMBase64.hpp>
#include <xsec/xenc/XENCEncryptionMethod.hpp>
#include <xsec/enc/XSECCryptoKey.hpp>
#include <xsec/enc/XSECCryptoSymmetricKey.hpp>
#include <xsec/framework/XSECError.hpp>
#include <xsec/utils/XSECDOMUtils.hpp>
#include "XENCAlgorithmHandlerDefault.hpp"
#include <xercesc/dom/DOM.hpp>
XERCES_CPP_NAMESPACE_USE
//
--------------------------------------------------------------------------------
// Internal functions
//
--------------------------------------------------------------------------------
void XENCAlgorithmHandlerDefault::mapURIToKey(const XMLCh * uri,
XSECCryptoKey * key) {
if (strEquals(uri, DSIGConstants::s_unicodeStrURI3DES_CBC)) {
// 3 Key 3DES in CBC mode.
if (key->getKeyType() != XSECCryptoKey::KEY_SYMMETRIC ||
dynamic_cast<XSECCryptoSymmetricKey
*>(key)->getSymmetricKeyType() !=
XSECCryptoSymmetricKey::KEY_3DES_CBC_192) {
throw XSECException(XSECException::CipherError,
"XENCAlgorithmHandlerDefault - 3DES Algorithm,
but not a 3DES key");
}
}
}
//
--------------------------------------------------------------------------------
// SafeBuffer decryption
//
--------------------------------------------------------------------------------
bool XENCAlgorithmHandlerDefault::decryptToSafeBuffer(
TXFMChain * cipherText,
XENCEncryptionMethod * encryptionMethod,
XSECCryptoKey * key,
DOMDocument * doc,
safeBuffer & result
) {
// The default case is to just do a standard, padded block decrypt.
// So the only thing we have to do is ensure key type matches URI.
mapURIToKey(encryptionMethod->getAlgorithm(), key);
// Add the decryption TXFM
TXFMCipher * tcipher;
XSECnew(tcipher, TXFMCipher(doc, key, false));
cipherText->appendTxfm(tcipher);
// Do the decrypt to the safeBuffer
result.sbStrcpyIn("");
result << cipherText->getLastTxfm();
return true;
}
//
--------------------------------------------------------------------------------
// SafeBuffer encryption
//
--------------------------------------------------------------------------------
bool XENCAlgorithmHandlerDefault::encryptToSafeBuffer(
TXFMChain * plainText,
XENCEncryptionMethod * encryptionMethod,
XSECCryptoKey * key,
XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument * doc,
safeBuffer & result
) {
// Check the URI and key match
mapURIToKey(encryptionMethod->getAlgorithm(), key);
// Do the encryption
TXFMCipher *tcipher;
XSECnew(tcipher, TXFMCipher(doc, key, true));
plainText->appendTxfm(tcipher);
// Transform to Base64
TXFMBase64 * tb64;
XSECnew(tb64, TXFMBase64(doc, false));
plainText->appendTxfm(tb64);
// Read into the safeBuffer
result = "";
result << plainText->getLastTxfm();
return true;
}
//
--------------------------------------------------------------------------------
// Clone
//
--------------------------------------------------------------------------------
XSECAlgorithmHandler * XENCAlgorithmHandlerDefault::clone(void) const {
XENCAlgorithmHandlerDefault * ret;
XSECnew(ret, XENCAlgorithmHandlerDefault);
return ret;
}
