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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* XSEC
*
* SimpleHMAC := An application to generate an XML document (via Xerces) and sign it
*
* Author(s): Berin Lautenbach
*
* $ID$
*
* $LOG$
*
*/
#include "IOStreamOutputter.hpp"
// Xerces
#include <xercesc/util/PlatformUtils.hpp>
// XML-Security-C (XSEC)
#include <xsec/framework/XSECProvider.hpp>
#include <xsec/dsig/DSIGReference.hpp>
#include <xsec/enc/OpenSSL/OpenSSLCryptoKeyHMAC.hpp>
#include <xsec/framework/XSECException.hpp>
// Xalan
#ifndef XSEC_NO_XALAN
#include <xalanc/XalanTransformer/XalanTransformer.hpp>
XALAN_USING_XALAN(XalanTransformer)
#endif
XERCES_CPP_NAMESPACE_USE
DOMDocument *createLetter(DOMImplementation *impl) {
DOMDocument *doc = impl->createDocument(
0,
MAKE_UNICODE_STRING("Letter"),
NULL);
DOMElement *rootElem = doc->getDocumentElement();
// Add the ToAddress
DOMElement *addressElem = doc->createElement(MAKE_UNICODE_STRING("ToAddress"));
rootElem->appendChild(doc->createTextNode(MAKE_UNICODE_STRING("\n")));
rootElem->appendChild(addressElem);
addressElem->appendChild(doc->createTextNode(
MAKE_UNICODE_STRING("The address of the Recipient")));
// Add the FromAddress
addressElem = doc->createElement(MAKE_UNICODE_STRING("FromAddress"));
rootElem->appendChild(doc->createTextNode(MAKE_UNICODE_STRING("\n")));
rootElem->appendChild(addressElem);
addressElem->appendChild(doc->createTextNode(
MAKE_UNICODE_STRING("The address of the Sender")));
// Add some text
DOMElement *textElem = doc->createElement(MAKE_UNICODE_STRING("Text"));
rootElem->appendChild(doc->createTextNode(MAKE_UNICODE_STRING("\n")));
rootElem->appendChild(textElem);
textElem->appendChild(doc->createTextNode(
MAKE_UNICODE_STRING("\nTo whom it may concern\n\n...\n")));
return doc;
}
int main (int argc, char **argv) {
try {
XMLPlatformUtils::Initialize();
#ifndef XSEC_NO_XALAN
XalanTransformer::initialize();
#endif
XSECPlatformUtils::Initialise();
}
catch (const XMLException &e) {
cerr << "Error during initialisation of Xerces" << endl;
cerr << "Error Message = : "
<< e.getMessage() << endl;
}
// Create a blank Document
DOMImplementation *impl =
DOMImplementationRegistry::getDOMImplementation(MAKE_UNICODE_STRING("Core"));
// Create a letter
DOMDocument *doc = createLetter(impl);
DOMElement *rootElem = doc->getDocumentElement();
// The signature
XSECProvider prov;
DSIGSignature *sig;
DOMElement *sigNode;
try {
// Create a signature object
sig = prov.newSignature();
sig->setDSIGNSPrefix(MAKE_UNICODE_STRING("ds"));
// Use it to create a blank signature DOM structure from the doc
sigNode = sig->createBlankSignature(doc, CANON_C14N_COM, SIGNATURE_HMAC, HASH_SHA1);
// Inser the signature DOM nodes into the doc
rootElem->appendChild(doc->createTextNode(MAKE_UNICODE_STRING("\n")));
rootElem->appendChild(sigNode);
rootElem->appendChild(doc->createTextNode(MAKE_UNICODE_STRING("\n")));
// Create an envelope reference for the text to be signed
DSIGReference * ref = sig->createReference(MAKE_UNICODE_STRING(""));
ref->appendEnvelopedSignatureTransform();
// Set the HMAC Key to be the string "secret"
OpenSSLCryptoKeyHMAC * hmacKey = new OpenSSLCryptoKeyHMAC();
hmacKey->setKey((unsigned char *) "secret", (unsigned int) strlen("secret"));
sig->setSigningKey(hmacKey);
// Add a KeyInfo element
sig->appendKeyName(MAKE_UNICODE_STRING("The secret key is \"secret\""));
// Sign
sig->sign();
}
catch (XSECException &e)
{
cerr << "An error occurred during a signature load\n Message: "
<< e.getMsg() << endl;
exit(1);
}
// Output
docSetup(doc);
cout << doc;
return 0;
}
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