--- a/kerneltest/e32utils/nistsecurerng/src/discreteFourierTransform.cpp Tue Aug 31 16:34:26 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,102 +0,0 @@
-/*
-* Portions Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description:
-* The original NIST Statistical Test Suite code is placed in public domain.
-* (http://csrc.nist.gov/groups/ST/toolkit/rng/documentation_software.html)
-*
-* This software was developed at the National Institute of Standards and Technology by
-* employees of the Federal Government in the course of their official duties. Pursuant
-* to title 17 Section 105 of the United States Code this software is not subject to
-* copyright protection and is in the public domain. The NIST Statistical Test Suite is
-* an experimental system. NIST assumes no responsibility whatsoever for its use by other
-* parties, and makes no guarantees, expressed or implied, about its quality, reliability,
-* or any other characteristic. We would appreciate acknowledgment if the software is used.
-*/
-
-#include "openc.h"
-#include "../include/externs.h"
-#include "../include/utilities.h"
-#include "../include/cephes.h"
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- D I S C R E T E F O U R I E R T R A N S F O R M T E S T
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-void __ogg_fdrffti(int n, double* wsave, int* ifac);
-void __ogg_fdrfftf(int n, double* X, double* wsave, int* ifac);
-
-void
-DiscreteFourierTransform(int n)
-{
- double p_value, upperBound, percentile, N_l, N_o, d;
- double* m = NULL;
- double* X = NULL;
- double* wsave = NULL;
- int* ifac = NULL;
- int i, count;
-
- if ( ((X = (double*) calloc(n,sizeof(double))) == NULL) ||
- ((wsave = (double *)calloc(2*n+15,sizeof(double))) == NULL) ||
- ((ifac = (int *)calloc(15,sizeof(int))) == NULL) ||
- ((m = (double*)calloc(n/2+1, sizeof(double))) == NULL) ) {
- fprintf(stats[7],"\t\tUnable to allocate working arrays for the DFT.\n");
- if( X != NULL )
- free(X);
- if( wsave != NULL )
- free(wsave);
- if( ifac != NULL )
- free(ifac);
- if( m != NULL )
- free(m);
- return;
- }
- for ( i=0; i<n; i++ )
- X[i] = 2*(int)epsilon[i] - 1;
-
- __ogg_fdrffti(n, wsave, ifac); /* INITIALIZE WORK ARRAYS */
- __ogg_fdrfftf(n, X, wsave, ifac); /* APPLY FORWARD FFT */
-
- m[0] = sqrt(X[0]*X[0]); /* COMPUTE MAGNITUDE */
-
- for ( i=0; i<n/2; i++ ) { /* DISPLAY FOURIER POINTS */
- m[i+1] = sqrt(pow(X[2*i+1],2)+pow(X[2*i+2],2));
- }
- count = 0; /* CONFIDENCE INTERVAL */
- upperBound = sqrt(2.995732274*n);
- for ( i=0; i<n/2; i++ )
- if ( m[i] < upperBound )
- count++;
- percentile = (double)count/(n/2)*100;
- N_l = (double) count; /* number of peaks less than h = sqrt(3*n) */
- N_o = (double) 0.95*n/2.0;
- d = (N_l - N_o)/sqrt(n/2.0*0.95*0.05);
- p_value = erfc(fabs(d)/sqrt(2.0));
-
- fprintf(stats[TEST_FFT], "\t\t\t\tFFT TEST\n");
- fprintf(stats[TEST_FFT], "\t\t-------------------------------------------\n");
- fprintf(stats[TEST_FFT], "\t\tCOMPUTATIONAL INFORMATION:\n");
- fprintf(stats[TEST_FFT], "\t\t-------------------------------------------\n");
- fprintf(stats[TEST_FFT], "\t\t(a) Percentile = %f\n", percentile);
- fprintf(stats[TEST_FFT], "\t\t(b) N_l = %f\n", N_l);
- fprintf(stats[TEST_FFT], "\t\t(c) N_o = %f\n", N_o);
- fprintf(stats[TEST_FFT], "\t\t(d) d = %f\n", d);
- fprintf(stats[TEST_FFT], "\t\t-------------------------------------------\n");
-
- fprintf(stats[TEST_FFT], "%s\t\tp_value = %f\n\n", p_value < ALPHA ? "FAILURE" : "SUCCESS", p_value);
- fprintf(results[TEST_FFT], "%f\n", p_value);
-
- free(X);
- free(wsave);
- free(ifac);
- free(m);
-}