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//
// Creator:    http://www.dicelocksecurity.com
// Version:    vers.3.0.0.1
//
// Copyright © 2008-2010 DiceLock Security, LLC. All rights reserved.
//
//                               DISCLAIMER
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED 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
// REGENTS OR CONTRIBUTORS 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.
// 
// DICELOCK IS A REGISTERED TRADEMARK OR TRADEMARK OF THE OWNERS
// 
 
#ifndef DISCRETEFOURIERTRANSFORMTEST_HPP
 
#define DISCRETEFOURIERTRANSFORMTEST_HPP
 
#ifdef DICELOCKCIPHER_EXPORTS
   #define CLASS_DECLSPEC    __declspec(dllexport)
#else
   #define CLASS_DECLSPEC    __declspec(dllimport)
#endif
 
#include "baseRandomTest.h"
#include "mathematicalFunctions.h"
 
using namespace DiceLockSecurity::CryptoRandomStream;
 
 
namespace DiceLockSecurity {
 
  namespace RandomTest {
 
    class DiscreteFourierTransformTest : public BaseRandomTest {
 
    protected:
 
      // Random Test Class enumerator name
      static const RandomTests  test;
      // Random Test Class minimum stream length
      static const unsigned int  minimumLength;
 
      static const int  ntryh[4];
      static const double  tpi;
      static const double  hsqt2;
 
      double      percentile;
      double      observedPeaks;
      double      expectedPeaks;
      double      normalizedDifference;
 
      void drfti1(int, double *, double *);
      void dradf2(int,int,double *,double *,double *);
      void dradf4(int ,int ,double *,double *,double *,double *,double *);
      void drftf1(int,double *,double *,double *,double *);
      void dradfg(int,int,int,int,double *,double *,double *,double *,double *,double *);
 
    public:
 
      // Constructor, default 
      CLASS_DECLSPEC DiscreteFourierTransformTest();
 
      // Constructor with a MathematicalFunctions object instantiated 
      CLASS_DECLSPEC DiscreteFourierTransformTest(MathematicalFunctions*);
 
      // Destructor
      CLASS_DECLSPEC ~DiscreteFourierTransformTest();
 
      // Tests randomness of the BaseCryptoRandomStream and returns the random value
      CLASS_DECLSPEC bool IsRandom(BaseCryptoRandomStream*);
 
      // Initializes the object
      CLASS_DECLSPEC void Initialize(void);
 
      // Gets the type of the object
      CLASS_DECLSPEC RandomTests GetType(void);
 
      // Gets the minimum random stream length
      CLASS_DECLSPEC unsigned int GetMinimumLength(void);
 
      // Gets the "percentile" result
      CLASS_DECLSPEC double GetPercentile(void);
 
      // Gets the "observedPeaks" result
      CLASS_DECLSPEC double GetObservedPeaks(void);
 
      // Gets the "expectedPeaks" result
      CLASS_DECLSPEC double GetExpectedPeaks(void);
 
      // Gets the "normalizedDifference" result
      CLASS_DECLSPEC double GetNormalizedDifference (void);
  };
  }
}
 
#endif