Initial sshsm project structure

Issue-ID: AAF-94
Change-Id: I5e82fff418e7567b161acf9b98013a9b85ffc5b4
Signed-off-by: NingSun <ning.sun@intel.com>

1 files changed, 110 insertions, 0 deletions

diff --git a/SoftHSMv2/src/lib/crypto/test/ent.c b/SoftHSMv2/src/lib/crypto/test/ent.c
new file mode 100644
index 0000000..b255405
--- /dev/null
+++ b/SoftHSMv2/src/lib/crypto/test/ent.c
@@ -0,0 +1,110 @@
+/* This code was taken from http://www.fourmilab.ch/random/ where it states that:
+
+   This software is in the public domain. Permission to use, copy, modify, and distribute 
+   this software and its documentation for any purpose and without fee is hereby granted, 
+   without any conditions or restrictions. This software is provided “as is” without 
+   express or implied warranty. */
+
+/*
+	ENT  --  Entropy calculation and analysis of putative
+		 random sequences.
+
+        Designed and implemented by John "Random" Walker in May 1985.
+
+	Multiple analyses of random sequences added in December 1985.
+
+	Bit stream analysis added in September 1997.
+
+	Terse mode output, getopt() command line processing,
+	optional stdin input, and HTML documentation added in
+	October 1998.
+	
+	Documentation for the -t (terse output) option added
+	in July 2006.
+	
+	Replaced table look-up for chi square to probability
+	conversion with algorithmic computation in January 2008.
+
+	For additional information and the latest version,
+	see http://www.fourmilab.ch/random/
+
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <math.h>
+#ifdef _WIN32
+#include <fcntl.h>
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
+
+#include "iso8859.h"
+#include "randtest.h"
+
+#define UPDATE  "January 28th, 2008"
+
+#define FALSE 0
+#define TRUE  1
+
+#ifdef M_PI
+#define PI	 M_PI
+#else
+#define PI	 3.14159265358979323846
+#endif
+
+extern double pochisq(const double ax, const int df);
+
+/*  Main program  */
+
+void doEnt
+(
+	unsigned char* data, 
+	size_t len, 
+	double* pEntropy,
+	double* pChiProbability,
+	double* pArithMean,
+	double* pMontePi,
+	double* pSerialCorrelation
+)
+{
+	size_t s;
+	long ccount[256];	      /* Bins to count occurrences of values */
+	double montepi, chip,
+	       scc, ent, mean, chisq;
+
+	/* Initialise for calculations */
+
+	rt_init(FALSE);
+
+	/* Scan input file and count character occurrences */
+
+	for (s = 0; s < len; s++)
+	{
+	   unsigned char ocb = data[s];
+
+	   ccount[ocb]++;	      /* Update counter for this bin */
+	   rt_add(&ocb, 1);
+	}
+
+	/* Complete calculation and return sequence metrics */
+
+	rt_end(&ent, &chisq, &mean, &montepi, &scc);
+
+	/* Calculate probability of observed distribution occurring from
+	   the results of the Chi-Square test */
+
+    	chip = pochisq(chisq, 255);
+
+	/* Print bin counts if requested */
+
+	/* Return calculated results */
+
+	*pEntropy = ent;
+	*pChiProbability = chip;
+	*pArithMean = mean;
+	*pMontePi = montepi;
+	*pSerialCorrelation = scc;
+}