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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.
*/
/*****************************************************************************
ECDHTests.cpp
Contains test cases to test the ECDH class
*****************************************************************************/
#include <stdlib.h>
#include <vector>
#include <cppunit/extensions/HelperMacros.h>
#include "ECDHTests.h"
#include "CryptoFactory.h"
#include "RNG.h"
#include "AsymmetricKeyPair.h"
#include "AsymmetricAlgorithm.h"
#ifdef WITH_ECC
#include "ECParameters.h"
#include "ECPublicKey.h"
#include "ECPrivateKey.h"
CPPUNIT_TEST_SUITE_REGISTRATION(ECDHTests);
void ECDHTests::setUp()
{
ecdh = NULL;
ecdh = CryptoFactory::i()->getAsymmetricAlgorithm(AsymAlgo::ECDH);
// Check the ECDH object
CPPUNIT_ASSERT(ecdh != NULL);
}
void ECDHTests::tearDown()
{
if (ecdh != NULL)
{
CryptoFactory::i()->recycleAsymmetricAlgorithm(ecdh);
}
fflush(stdout);
}
void ECDHTests::testKeyGeneration()
{
AsymmetricKeyPair* kp;
// Curves to test
std::vector<ByteString> curves;
// Add X9.62 prime256v1
curves.push_back(ByteString("06082a8648ce3d030107"));
// Add secp384r1
curves.push_back(ByteString("06052b81040022"));
for (std::vector<ByteString>::iterator c = curves.begin(); c != curves.end(); c++)
{
// Set domain parameters
ECParameters* p = new ECParameters;
p->setEC(*c);
// Generate key-pair
CPPUNIT_ASSERT(ecdh->generateKeyPair(&kp, p));
ECPublicKey* pub = (ECPublicKey*) kp->getPublicKey();
ECPrivateKey* priv = (ECPrivateKey*) kp->getPrivateKey();
CPPUNIT_ASSERT(pub->getEC() == *c);
CPPUNIT_ASSERT(priv->getEC() == *c);
ecdh->recycleParameters(p);
ecdh->recycleKeyPair(kp);
}
}
void ECDHTests::testSerialisation()
{
// Get prime256v1 domain parameters
ECParameters* p = new ECParameters;
p->setEC(ByteString("06082a8648ce3d030107"));
// Serialise the parameters
ByteString serialisedParams = p->serialise();
// Deserialise the parameters
AsymmetricParameters* dEC;
CPPUNIT_ASSERT(ecdh->reconstructParameters(&dEC, serialisedParams));
CPPUNIT_ASSERT(dEC->areOfType(ECParameters::type));
ECParameters* ddEC = (ECParameters*) dEC;
CPPUNIT_ASSERT(p->getEC() == ddEC->getEC());
// Generate a key-pair
AsymmetricKeyPair* kp;
CPPUNIT_ASSERT(ecdh->generateKeyPair(&kp, dEC));
// Serialise the key-pair
ByteString serialisedKP = kp->serialise();
// Deserialise the key-pair
AsymmetricKeyPair* dKP;
CPPUNIT_ASSERT(ecdh->reconstructKeyPair(&dKP, serialisedKP));
// Check the deserialised key-pair
ECPrivateKey* privKey = (ECPrivateKey*) kp->getPrivateKey();
ECPublicKey* pubKey = (ECPublicKey*) kp->getPublicKey();
ECPrivateKey* dPrivKey = (ECPrivateKey*) dKP->getPrivateKey();
ECPublicKey* dPubKey = (ECPublicKey*) dKP->getPublicKey();
CPPUNIT_ASSERT(privKey->getEC() == dPrivKey->getEC());
CPPUNIT_ASSERT(privKey->getD() == dPrivKey->getD());
CPPUNIT_ASSERT(pubKey->getEC() == dPubKey->getEC());
CPPUNIT_ASSERT(pubKey->getQ() == dPubKey->getQ());
ecdh->recycleParameters(p);
ecdh->recycleParameters(dEC);
ecdh->recycleKeyPair(kp);
ecdh->recycleKeyPair(dKP);
}
void ECDHTests::testPKCS8()
{
// Get prime256v1 domain parameters
ECParameters* p = new ECParameters;
p->setEC(ByteString("06082a8648ce3d030107"));
// Generate a key-pair
AsymmetricKeyPair* kp;
CPPUNIT_ASSERT(ecdh->generateKeyPair(&kp, p));
CPPUNIT_ASSERT(kp != NULL);
ECPrivateKey* priv = (ECPrivateKey*) kp->getPrivateKey();
CPPUNIT_ASSERT(priv != NULL);
// Encode and decode the private key
ByteString pkcs8 = priv->PKCS8Encode();
CPPUNIT_ASSERT(pkcs8.size() != 0);
ECPrivateKey* dPriv = (ECPrivateKey*) ecdh->newPrivateKey();
CPPUNIT_ASSERT(dPriv != NULL);
CPPUNIT_ASSERT(dPriv->PKCS8Decode(pkcs8));
CPPUNIT_ASSERT(priv->getEC() == dPriv->getEC());
CPPUNIT_ASSERT(priv->getD() == dPriv->getD());
ecdh->recycleParameters(p);
ecdh->recycleKeyPair(kp);
ecdh->recyclePrivateKey(dPriv);
}
void ECDHTests::testDerivation()
{
AsymmetricKeyPair* kpa;
AsymmetricKeyPair* kpb;
ECParameters* p;
// Curves to test
std::vector<ByteString> curves;
// Add X9.62 prime256v1
curves.push_back(ByteString("06082a8648ce3d030107"));
// Add secp384r1
curves.push_back(ByteString("06052b81040022"));
for (std::vector<ByteString>::iterator c = curves.begin(); c != curves.end(); c++)
{
// Get parameters
p = new ECParameters;
CPPUNIT_ASSERT(p != NULL);
p->setEC(*c);
// Generate key-pairs
CPPUNIT_ASSERT(ecdh->generateKeyPair(&kpa, p));
CPPUNIT_ASSERT(ecdh->generateKeyPair(&kpb, p));
// Derive secrets
SymmetricKey* sa;
CPPUNIT_ASSERT(ecdh->deriveKey(&sa, kpb->getPublicKey(), kpa->getPrivateKey()));
SymmetricKey* sb;
CPPUNIT_ASSERT(ecdh->deriveKey(&sb, kpa->getPublicKey(), kpb->getPrivateKey()));
// Must be the same
CPPUNIT_ASSERT(sa->getKeyBits() == sb->getKeyBits());
// Clean up
ecdh->recycleSymmetricKey(sa);
ecdh->recycleSymmetricKey(sb);
ecdh->recycleKeyPair(kpa);
ecdh->recycleKeyPair(kpb);
ecdh->recycleParameters(p);
}
}
void ECDHTests::testDeriveKnownVector()
{
ECPublicKey* pubKeya = (ECPublicKey*) ecdh->newPublicKey();
ECPublicKey* pubKeyb = (ECPublicKey*) ecdh->newPublicKey();
ECPrivateKey* privKeya = (ECPrivateKey*) ecdh->newPrivateKey();
ECPrivateKey* privKeyb = (ECPrivateKey*) ecdh->newPrivateKey();
// Reconstruct public and private key for Alice
ByteString ec = "06082a8648ce3d030107"; // X9.62 prime256v1
ByteString da = "c88f01f510d9ac3f70a292daa2316de544e9aab8afe84049c62a9c57862d1433";
// add 04 (ASN_String) <len+1> 04 (UNCOMPRESSED) in front!
ByteString qa = "044104dad0b65394221cf9b051e1feca5787d098dfe637fc90b9ef945d0c37725811805271a0461cdb8252d61f1c456fa3e59ab1f45b33accf5f58389e0577b8990bb3";
pubKeya->setEC(ec);
pubKeya->setQ(qa);
privKeya->setEC(ec);
privKeya->setD(da);
// Reconstruct public and private key for Bob
ByteString db = "c6ef9c5d78ae012a011164acb397ce2088685d8f06bf9be0b283ab46476bee53";
ByteString qb = "044104d12dfb5289c8d4f81208b70270398c342296970a0bccb74c736fc7554494bf6356fbf3ca366cc23e8157854c13c58d6aac23f046ada30f8353e74f33039872ab";
pubKeyb->setEC(ec);
pubKeyb->setQ(qb);
privKeyb->setEC(ec);
privKeyb->setD(db);
// Test
ByteString expected = "d6840f6b42f6edafd13116e0e12565202fef8e9ece7dce03812464d04b9442de";
SymmetricKey* sa;
CPPUNIT_ASSERT(ecdh->deriveKey(&sa, pubKeya, privKeyb));
CPPUNIT_ASSERT(sa->getKeyBits() == expected);
SymmetricKey* sb;
CPPUNIT_ASSERT(ecdh->deriveKey(&sb, pubKeyb, privKeya));
CPPUNIT_ASSERT(sb->getKeyBits() == expected);
ecdh->recyclePublicKey(pubKeya);
ecdh->recyclePublicKey(pubKeyb);
ecdh->recyclePrivateKey(privKeya);
ecdh->recyclePrivateKey(privKeyb);
ecdh->recycleSymmetricKey(sa);
ecdh->recycleSymmetricKey(sb);
}
#endif
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