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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.
*/
/*****************************************************************************
RNGTests.cpp
Contains test cases to test the RNG class
*****************************************************************************/
#include <stdlib.h>
#include <cppunit/extensions/HelperMacros.h>
#include "RNGTests.h"
#include "CryptoFactory.h"
#include "RNG.h"
#include "ent.h"
#include <stdio.h>
CPPUNIT_TEST_SUITE_REGISTRATION(RNGTests);
void RNGTests::setUp()
{
rng = NULL;
rng = CryptoFactory::i()->getRNG();
// Check the RNG
CPPUNIT_ASSERT(rng != NULL);
}
void RNGTests::tearDown()
{
fflush(stdout);
}
void RNGTests::testSimpleComparison()
{
ByteString a,b;
CPPUNIT_ASSERT(rng->generateRandom(a, 256));
CPPUNIT_ASSERT(rng->generateRandom(b, 256));
CPPUNIT_ASSERT(a.size() == 256);
CPPUNIT_ASSERT(b.size() == 256);
CPPUNIT_ASSERT(a != b);
}
void RNGTests::testEnt()
{
ByteString a;
double entropy, chiProbability, arithMean, montePi, serialCorrelation;
// Generate 10MB of random data
CPPUNIT_ASSERT(rng->generateRandom(a, 10*1024*1024));
// Perform entropy tests
doEnt(a.byte_str(), a.size(), &entropy, &chiProbability, &arithMean, &montePi, &serialCorrelation);
// Check entropy
CPPUNIT_ASSERT(entropy >= 7.999);
CPPUNIT_ASSERT((arithMean >= 127.4) && (arithMean <= 127.6));
CPPUNIT_ASSERT(serialCorrelation <= 0.001);
}
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