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/*
* Copyright 2001-2005 Internet2
*
* Licensed 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.
*/
/* SAMLIdentifier.cpp - wraps ID generation functionality
Scott Cantor
5/22/02
$History:$
*/
#include "internal.h"
#include <xsec/enc/XSECCryptoException.hpp>
#include <xsec/utils/XSECPlatformUtils.hpp>
using namespace saml;
using namespace std;
void SAMLIdentifier::generateRandomBytes(void* buf, unsigned int len)
{
try {
if (XSECPlatformUtils::g_cryptoProvider->getRandom(reinterpret_cast<unsigned char*>(buf),len)<len)
throw InvalidCryptoException("Unable to generate random data; was PRNG seeded?");
}
catch (XSECCryptoException& e) {
throw InvalidCryptoException("Unable to generate random data: $1",params(1,e.getMsg()));
}
}
void SAMLIdentifier::generateRandomBytes(std::string& buf, unsigned int len)
{
buf.erase();
auto_ptr<unsigned char> hold(new unsigned char[len]);
generateRandomBytes(hold.get(),len);
for (unsigned int i=0; i<len; i++)
buf+=(hold.get())[i];
}
SAMLIdentifier::SAMLIdentifier()
{
unsigned char key[17];
generateRandomBytes(key,16);
char hexform[34];
sprintf(hexform,"_%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
key[0],key[1],key[2],key[3],key[4],key[5],key[6],key[7],
key[8],key[9],key[10],key[11],key[12],key[13],key[14],key[15]);
hexform[33]=0;
m_buffer=XMLString::transcode(hexform);
}
SAMLIdentifier::~SAMLIdentifier()
{
XMLString::release(&m_buffer);
}
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