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/*
* Copyright (c) 2010 SURFnet bv
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.
*/
/*****************************************************************************
DHTests.cpp
Contains test cases to test the DH class
*****************************************************************************/
#include <stdlib.h>
#include <vector>
#include <cppunit/extensions/HelperMacros.h>
#include "DHTests.h"
#include "CryptoFactory.h"
#include "RNG.h"
#include "AsymmetricKeyPair.h"
#include "AsymmetricAlgorithm.h"
#include "DHParameters.h"
#include "DHPublicKey.h"
#include "DHPrivateKey.h"
CPPUNIT_TEST_SUITE_REGISTRATION(DHTests);
void DHTests::setUp()
{
dh = NULL;
dh = CryptoFactory::i()->getAsymmetricAlgorithm(AsymAlgo::DH);
// Check the DH object
CPPUNIT_ASSERT(dh != NULL);
}
void DHTests::tearDown()
{
if (dh != NULL)
{
CryptoFactory::i()->recycleAsymmetricAlgorithm(dh);
}
fflush(stdout);
}
void DHTests::testKeyGeneration()
{
AsymmetricKeyPair* kp;
// Key sizes to test
std::vector<size_t> keySizes;
keySizes.push_back(1024);
for (std::vector<size_t>::iterator k = keySizes.begin(); k != keySizes.end(); k++)
{
// Generate parameters
DHParameters* p;
AsymmetricParameters** ap = (AsymmetricParameters**) &p;
CPPUNIT_ASSERT(dh->generateParameters(ap, (void*) *k));
// Generate key-pair
CPPUNIT_ASSERT(dh->generateKeyPair(&kp, p));
DHPublicKey* pub = (DHPublicKey*) kp->getPublicKey();
DHPrivateKey* priv = (DHPrivateKey*) kp->getPrivateKey();
CPPUNIT_ASSERT(pub->getBitLength() == *k);
CPPUNIT_ASSERT(priv->getBitLength() == *k);
dh->recycleKeyPair(kp);
// Generate key-pair with a fixed private value length
p->setXBitLength(128);
CPPUNIT_ASSERT(dh->generateKeyPair(&kp, p));
priv = (DHPrivateKey*) kp->getPrivateKey();
CPPUNIT_ASSERT(priv->getX().bits() == 128);
dh->recycleParameters(p);
dh->recycleKeyPair(kp);
}
}
void DHTests::testSerialisation()
{
// Generate 1024-bit parameters for testing
DHParameters* p;
AsymmetricParameters** ap = (AsymmetricParameters**) &p;
CPPUNIT_ASSERT(dh->generateParameters(ap, (void*) 1024));
// Set a fixed private value length
p->setXBitLength(128);
// Serialise the parameters
ByteString serialisedParams = p->serialise();
// Deserialise the parameters
AsymmetricParameters* dP;
CPPUNIT_ASSERT(dh->reconstructParameters(&dP, serialisedParams));
CPPUNIT_ASSERT(dP->areOfType(DHParameters::type));
DHParameters* ddP = (DHParameters*) dP;
CPPUNIT_ASSERT(p->getP() == ddP->getP());
CPPUNIT_ASSERT(p->getG() == ddP->getG());
CPPUNIT_ASSERT(p->getXBitLength() == ddP->getXBitLength());
// Generate a key-pair
AsymmetricKeyPair* kp;
CPPUNIT_ASSERT(dh->generateKeyPair(&kp, dP));
// Serialise the key-pair
ByteString serialisedKP = kp->serialise();
// Deserialise the key-pair
AsymmetricKeyPair* dKP;
CPPUNIT_ASSERT(dh->reconstructKeyPair(&dKP, serialisedKP));
// Check the deserialised key-pair
DHPrivateKey* privKey = (DHPrivateKey*) kp->getPrivateKey();
DHPublicKey* pubKey = (DHPublicKey*) kp->getPublicKey();
DHPrivateKey* dPrivKey = (DHPrivateKey*) dKP->getPrivateKey();
DHPublicKey* dPubKey = (DHPublicKey*) dKP->getPublicKey();
CPPUNIT_ASSERT(privKey->getP() == dPrivKey->getP());
CPPUNIT_ASSERT(privKey->getG() == dPrivKey->getG());
CPPUNIT_ASSERT(privKey->getX() == dPrivKey->getX());
CPPUNIT_ASSERT(pubKey->getP() == dPubKey->getP());
CPPUNIT_ASSERT(pubKey->getG() == dPubKey->getG());
CPPUNIT_ASSERT(pubKey->getY() == dPubKey->getY());
dh->recycleParameters(p);
dh->recycleParameters(dP);
dh->recycleKeyPair(kp);
dh->recycleKeyPair(dKP);
}
void DHTests::testPKCS8()
{
// Generate 1024-bit parameters for testing
AsymmetricParameters* p;
CPPUNIT_ASSERT(dh->generateParameters(&p, (void*) 1024));
// Generate a key-pair
AsymmetricKeyPair* kp;
CPPUNIT_ASSERT(dh->generateKeyPair(&kp, p));
CPPUNIT_ASSERT(kp != NULL);
DHPrivateKey* priv = (DHPrivateKey*) kp->getPrivateKey();
CPPUNIT_ASSERT(priv != NULL);
// Encode and decode the private key
ByteString pkcs8 = priv->PKCS8Encode();
CPPUNIT_ASSERT(pkcs8.size() != 0);
DHPrivateKey* dPriv = (DHPrivateKey*) dh->newPrivateKey();
CPPUNIT_ASSERT(dPriv != NULL);
CPPUNIT_ASSERT(dPriv->PKCS8Decode(pkcs8));
CPPUNIT_ASSERT(priv->getP() == dPriv->getP());
CPPUNIT_ASSERT(priv->getG() == dPriv->getG());
CPPUNIT_ASSERT(priv->getX() == dPriv->getX());
dh->recycleParameters(p);
dh->recycleKeyPair(kp);
dh->recyclePrivateKey(dPriv);
}
void DHTests::testDerivation()
{
AsymmetricKeyPair* kpa;
AsymmetricKeyPair* kpb;
// Key sizes to test
std::vector<size_t> keySizes;
keySizes.push_back(1024);
for (std::vector<size_t>::iterator k = keySizes.begin(); k != keySizes.end(); k++)
{
// Generate parameters
AsymmetricParameters* p;
CPPUNIT_ASSERT(dh->generateParameters(&p, (void*) *k));
// Generate key-pairs
CPPUNIT_ASSERT(dh->generateKeyPair(&kpa, p));
CPPUNIT_ASSERT(dh->generateKeyPair(&kpb, p));
// Derive secrets
SymmetricKey* sa;
CPPUNIT_ASSERT(dh->deriveKey(&sa, kpb->getPublicKey(), kpa->getPrivateKey()));
SymmetricKey* sb;
CPPUNIT_ASSERT(dh->deriveKey(&sb, kpa->getPublicKey(), kpb->getPrivateKey()));
// Must be the same
CPPUNIT_ASSERT(sa->getKeyBits() == sb->getKeyBits());
// Clean up
dh->recycleSymmetricKey(sa);
dh->recycleSymmetricKey(sb);
dh->recycleKeyPair(kpa);
dh->recycleKeyPair(kpb);
dh->recycleParameters(p);
}
}
void DHTests::testDeriveKnownVector()
{
// TODO
}
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