Adding upstream version 1.9.14.upstream/1.9.14

Signed-off-by: Daniel Baumann <daniel@debian.org>

9 files changed, 1231 insertions, 0 deletions

diff --git a/ent/Makefile.am b/ent/Makefile.am
new file mode 100644
index 0000000..265504c
--- /dev/null
+++ b/ent/Makefile.am
@@ -0,0 +1,22 @@
+## Process this file with automake to produce Makefile.in.
+
+if ENABLE_ENT_TEST
+check_PROGRAMS = entest
+endif
+
+AM_CFLAGS=-Wall
+
+entest_LDADD = -lm
+
+entest_SOURCES = entest.c iso8859.c randtest.c chisq.c iso8859.h randtest.h 
+
+CLEANFILES = sample
+
+MAINTAINERCLEANFILES = Makefile.in
+
+if ENABLE_ENT_TEST
+check-local:
+	./entest -t ${srcdir}/entitle.gif
+	../src/haveged -n 16384k -v 1 $*
+	./entest -vf sample
+endif
diff --git a/ent/Makefile.in b/ent/Makefile.in
new file mode 100644
index 0000000..49931f5
--- /dev/null
+++ b/ent/Makefile.in
@@ -0,0 +1,577 @@
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+# with or without modifications, as long as this notice is preserved.
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+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+@ENABLE_ENT_TEST_TRUE@check-local:
+@ENABLE_ENT_TEST_TRUE@	./entest -t ${srcdir}/entitle.gif
+@ENABLE_ENT_TEST_TRUE@	../src/haveged -n 16384k -v 1 $*
+@ENABLE_ENT_TEST_TRUE@	./entest -vf sample
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/ent/chisq.c b/ent/chisq.c
new file mode 100644
index 0000000..c4112d9
--- /dev/null
+++ b/ent/chisq.c
@@ -0,0 +1,136 @@
+/*
+
+    Compute probability of measured Chi Square value.
+    
+    This code was developed by Gary Perlman of the Wang
+    Institute (full citation below) and has been minimally
+    modified for use in this program.
+    
+*/
+
+#include <math.h>
+
+/*HEADER
+	Module:       z.c
+	Purpose:      compute approximations to normal z distribution probabilities
+	Programmer:   Gary Perlman
+	Organization: Wang Institute, Tyngsboro, MA 01879
+	Copyright:    none
+	Tabstops:     4
+*/
+
+#define	Z_MAX          6.0            /* maximum meaningful z value */
+
+/*FUNCTION poz: probability of normal z value */
+/*ALGORITHM
+	Adapted from a polynomial approximation in:
+		Ibbetson D, Algorithm 209
+		Collected Algorithms of the CACM 1963 p. 616
+	Note:
+		This routine has six digit accuracy, so it is only useful for absolute
+		z values < 6.  For z values >= to 6.0, poz() returns 0.0.
+*/
+static double        /*VAR returns cumulative probability from -oo to z */
+poz(const double z)  /*VAR normal z value */
+{
+    double y, x, w;
+
+    if (z == 0.0) {
+    	x = 0.0;
+    } else {
+	y = 0.5 * fabs(z);
+	if (y >= (Z_MAX * 0.5)) {
+    	    x = 1.0;
+	} else if (y < 1.0) {
+	   w = y * y;
+	   x = ((((((((0.000124818987 * w
+		   -0.001075204047) * w +0.005198775019) * w
+		   -0.019198292004) * w +0.059054035642) * w
+		   -0.151968751364) * w +0.319152932694) * w
+		   -0.531923007300) * w +0.797884560593) * y * 2.0;
+	} else {
+	    y -= 2.0;
+	    x = (((((((((((((-0.000045255659 * y
+		    +0.000152529290) * y -0.000019538132) * y
+		    -0.000676904986) * y +0.001390604284) * y
+		    -0.000794620820) * y -0.002034254874) * y
+		    +0.006549791214) * y -0.010557625006) * y
+		    +0.011630447319) * y -0.009279453341) * y
+		    +0.005353579108) * y -0.002141268741) * y
+		    +0.000535310849) * y +0.999936657524;
+    	}
+    }
+    return (z > 0.0 ? ((x + 1.0) * 0.5) : ((1.0 - x) * 0.5));
+}
+
+/*
+	Module:       chisq.c
+	Purpose:      compute approximations to chisquare distribution probabilities
+	Contents:     pochisq()
+	Uses:         poz() in z.c (Algorithm 209)
+	Programmer:   Gary Perlman
+	Organization: Wang Institute, Tyngsboro, MA 01879
+	Copyright:    none
+	Tabstops:     4
+*/
+
+#define	LOG_SQRT_PI     0.5723649429247000870717135 /* log (sqrt (pi)) */
+#define	I_SQRT_PI       0.5641895835477562869480795 /* 1 / sqrt (pi) */
+#define	BIGX           20.0         /* max value to represent exp (x) */
+#define	ex(x)             (((x) < -BIGX) ? 0.0 : exp(x))
+
+/*FUNCTION pochisq: probability of chi sqaure value */
+/*ALGORITHM Compute probability of chi square value.
+	Adapted from:
+		Hill, I. D. and Pike, M. C.  Algorithm 299
+		Collected Algorithms for the CACM 1967 p. 243
+	Updated for rounding errors based on remark in
+		ACM TOMS June 1985, page 185
+*/
+
+double pochisq(
+    	const double ax,    /* obtained chi-square value */
+     	const int df	    /* degrees of freedom */
+     	)
+{
+    double x = ax;
+    double a, y=0, s;
+    double e, c, z;
+    int even;	    	    /* true if df is an even number */
+
+    if (x <= 0.0 || df < 1) {
+    	return 1.0;
+    }
+
+    a = 0.5 * x;
+    even = (2 * (df / 2)) == df;
+    if (df > 1) {
+    	y = ex(-a);
+    }
+    s = (even ? y : (2.0 * poz(-sqrt(x))));
+    if (df > 2) {
+	x = 0.5 * (df - 1.0);
+	z = (even ? 1.0 : 0.5);
+	if (a > BIGX) {
+    	    e = (even ? 0.0 : LOG_SQRT_PI);
+    	    c = log(a);
+    	    while (z <= x) {
+		e = log(z) + e;
+		s += ex(c * z - a - e);
+		z += 1.0;
+    	    }
+    	    return (s);
+    	} else {
+	    e = (even ? 1.0 : (I_SQRT_PI / sqrt(a)));
+	    c = 0.0;
+	    while (z <= x) {
+		    e = e * (a / z);
+		    c = c + e;
+		    z += 1.0;
+    	    }
+	    return (c * y + s);
+    	}
+    } else {
+    	return s;
+    }
+}
diff --git a/ent/entest.c b/ent/entest.c
new file mode 100644
index 0000000..9a38bee
--- /dev/null
+++ b/ent/entest.c
@@ -0,0 +1,270 @@
+/*
+   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.
+
+        Hacked for haveged test April 2009
+
+   For additional information and the latest version,
+   see http://www.fourmilab.ch/random/
+
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <math.h>
+#include "getopt.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);
+
+struct pparams {
+  double chisqr;
+  double entropy;
+  double mean;
+  double pi;
+  double seq;
+  double xtreme;
+};
+
+static struct pparams defaults = {
+ .chisqr  = 1,          // bounds  - should be >1% and <99%
+ .entropy = 7.5,        // minimum - should be close to 8
+ .mean    = 127.0,   // minimum - should be close to 127.5
+ .pi      = 0.5,  // maximum - error deviation in percent
+ .seq     = 0.8,  // minimum - should be close to 1
+ .xtreme  = 0.00001  // maximum - result deviation
+};
+struct pparams *params = &defaults;
+
+static int check(long totalc, double ent, double chip, double mean, double montepi, double scc)
+{
+char failures[512];
+int  offs=0;
+double p;
+double p0 = params->chisqr;
+double p1 = 100-p0;
+if (ent<params->entropy) {
+  sprintf(failures+offs,"entropy:%f<%f ",ent,params->entropy);
+  offs=strlen(failures);
+}
+chip *= 100;
+if (chip<p0||chip>p1) {
+  sprintf(failures+offs,"chisqr:%f%% not in %f-%f ",chip,p0,p1);
+  offs=strlen(failures);
+}
+if (mean<params->mean) {
+  sprintf(failures+offs,"mean:%f<%f ",mean,params->mean);
+  offs=strlen(failures);
+}
+p = 100*(montepi-PI)/PI;
+if (fabs(p)>params->pi) {
+  sprintf(failures+offs,"pi:%f %f>%f ",montepi,p,params->pi);
+  offs=strlen(failures);
+}
+if (scc>params->seq) {
+  sprintf(failures+offs,"sequence:%f>%f ",scc,params->seq);
+  offs=strlen(failures);
+}
+if (offs) {
+   printf("Check Fail: %s\n",failures);
+   return -1;
+}
+printf("Sample looks good!\n");
+return 0;
+}
+
+/* Who checks the checker? The ent self-test test the various options by collecting the output
+ * of the various options on a given input in a text and then doing a diff with the expected
+ * output. IMHO the text comparison is pretty cheezy since doubles are involved. We make the
+ * same check but do not require equality on the quantities involved
+ */
+
+static int checkSelf(long totalc, double ent, double chisq, double mean, double montepi, double scc)
+{
+double ref[6] = {11619,7.787095,6567.223255,110.000258,3.392562,0.098324};
+double tst[6] = {totalc,ent,chisq,mean,montepi,scc};
+int i;double f;
+for(i=0;i<6;i++) {
+ f=fabs(tst[i]-ref[i])/ref[i];
+ if (f > params->xtreme) {
+   printf("Self-test(%d) failed:%f?",i,f);
+   return -1;
+   }
+ }
+printf("Self-test good!\n");
+return 0;
+}
+
+/*  HELP  --  Print information on how to call  */
+
+static void help(void)
+{
+        printf("entest -- Test the havege RNG.");
+        printf("\n");
+        printf("\n        Options:   -c<min>      Chi Square Threshold");
+        printf("\n                   -e<min>      Min entropy/char");
+        printf("\n                   -f<file>     File");
+        printf("\n                   -m<min>      Min arithmetic mean");
+        printf("\n                   -p<max>      Max error in pi");
+        printf("\n                   -s<min>      Min serial coeficient");
+        printf("\n                   -t           Self test");
+        printf("\n                   -u           Print this message\n");
+        printf("\n                   -v           Verbose - show the stats");
+        printf("\nAdapted from the work of John Walker");
+        printf("\n   http://www.fourmilab.ch/\n\n");
+}
+
+
+/*  Main program  */
+
+int main(int argc, char *argv[])
+{
+   int oc, opt;
+   long ccount[256];       /* Bins to count occurrences of values */
+   long totalc = 0;        /* Total character count */
+   double montepi, chip,
+          scc, ent, mean, chisq;
+   FILE *fp = stdin;
+   int fold = FALSE,       /* Fold upper to lower */
+       binary = FALSE,        /* Treat input as a bitstream */
+            stest = FALSE,
+            verbose = FALSE;
+        char *filename="";
+
+        while ((opt = getopt(argc, argv, "?c:e:f:m:p:s:t:v")) != -1) {
+       switch (toISOlower(opt)) {
+                 case 'c':
+          params->chisqr = atof(optarg);
+          break;
+
+                 case 'e':
+                    params->entropy = atof(optarg);
+                    break;
+
+                 case 'f':
+          filename = optarg;
+          break;
+
+       case 'm':
+                    params->mean = atof(optarg);
+                    break;
+
+       case 'p':
+                    params->pi = atof(optarg);
+                    break;
+
+       case 's':
+                    params->seq = atof(optarg);
+                    break;
+
+                 case 't':
+                    filename = optarg;
+/*                    filename = "entitle.gif"; */
+          stest = TRUE;
+          break;
+
+      case 'v':
+         verbose = TRUE;
+         break;
+
+      default:
+         help();
+         return -1;
+       }
+   }
+        if (!strlen(filename)) {
+           printf("Need input file\n");
+           help();
+           return 2;
+           }
+        if ((fp = fopen(filename, "rb")) == NULL) {
+           printf("Cannot open file %s\n", filename);
+      return 2;
+      }
+   memset(ccount, 0, sizeof ccount);
+
+   /* Initialise for calculations */
+
+   rt_init(binary);
+
+   /* Scan input file and count character occurrences */
+
+   while ((oc = fgetc(fp)) != EOF) {
+      unsigned char ocb;
+
+      if (fold && isISOalpha(oc) && isISOupper(oc)) {
+         oc = toISOlower(oc);
+      }
+      ocb = (unsigned char) oc;
+      totalc += binary ? 8 : 1;
+      if (binary) {
+       int b;
+       unsigned char ob = ocb;
+
+       for (b = 0; b < 8; b++) {
+      ccount[ob & 1]++;
+      ob >>= 1;
+       }
+      } else {
+          ccount[ocb]++;         /* Update counter for this bin */
+      }
+      rt_add(&ocb, 1);
+   }
+   fclose(fp);
+
+   /* Complete calculation and return sequence metrics */
+
+   rt_end(&ent, &chisq, &mean, &montepi, &scc);
+        chip = pochisq(chisq, (binary ? 1 : 255));
+
+        if (verbose)
+           printf("\nTest Results\n"
+                  "Sample:      %ld bytes\n"
+                  "Entropy:     %f bits\n"
+                  "Chi-Square:  %f(%f%%)\n"
+                  "Mean:        %f\n"
+                  "PI:          %f(%f%%)\n"
+                  "Correlation: %f\n",
+              totalc, ent, chisq, chip*100, mean, montepi,100*(montepi-PI)/PI,scc);
+
+   if (stest)
+           return checkSelf(totalc, ent, chisq, mean, montepi, scc);
+        return check(totalc, ent, chip, mean, montepi, scc);
+}
diff --git a/ent/entitle.gif b/ent/entitle.gif
new file mode 100644
index 0000000..437c305
--- /dev/null
+++ b/ent/entitle.gif
diff --git a/ent/iso8859.c b/ent/iso8859.c
new file mode 100644
index 0000000..22186b5
--- /dev/null
+++ b/ent/iso8859.c
@@ -0,0 +1,19 @@
+
+/* ISO 8859/1 Latin-1 alphabetic and upper and lower case bit vector tables. */
+
+/* LINTLIBRARY */
+
+unsigned char isoalpha[32] = {
+    0,0,0,0,0,0,0,0,127,255,255,224,127,255,255,224,0,0,0,0,0,0,0,0,255,255,
+    254,255,255,255,254,255
+};
+
+unsigned char isoupper[32] = {
+    0,0,0,0,0,0,0,0,127,255,255,224,0,0,0,0,0,0,0,0,0,0,0,0,255,255,254,254,
+    0,0,0,0
+};
+
+unsigned char isolower[32] = {
+    0,0,0,0,0,0,0,0,0,0,0,0,127,255,255,224,0,0,0,0,0,0,0,0,0,0,0,1,255,255,
+    254,255
+};
diff --git a/ent/iso8859.h b/ent/iso8859.h
new file mode 100644
index 0000000..6930a8f
--- /dev/null
+++ b/ent/iso8859.h
@@ -0,0 +1,17 @@
+
+/* ISO 8859/1 Latin-1 "ctype" macro replacements. */
+
+extern unsigned char isoalpha[32], isoupper[32], isolower[32];
+
+#define isISOspace(x)	((isascii(((unsigned char) (x))) && isspace(((unsigned char) (x)))) || ((x) == 0xA0))
+#define isISOalpha(x)	((isoalpha[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0)
+#define isISOupper(x)	((isoupper[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0)
+#define isISOlower(x)	((isolower[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0)
+#define isISOprint(x)   ((((x) >= ' ') && ((x) <= '~')) || ((x) >= 0xA0))
+#define toISOupper(x)   (isISOlower(x) ? (isascii(((unsigned char) (x))) ?  \
+                            toupper(x) : (((((unsigned char) (x)) != 0xDF) && \
+                            (((unsigned char) (x)) != 0xFF)) ? \
+			    (((unsigned char) (x)) - 0x20) : (x))) : (x))
+#define toISOlower(x)   (isISOupper(x) ? (isascii(((unsigned char) (x))) ?  \
+                            tolower(x) : (((unsigned char) (x)) + 0x20)) \
+			    : (x))
diff --git a/ent/randtest.c b/ent/randtest.c
new file mode 100644
index 0000000..e9eaf33
--- /dev/null
+++ b/ent/randtest.c
@@ -0,0 +1,183 @@
+/*
+
+	 Apply various randomness tests to a stream of bytes
+
+		  by John Walker  --  September 1996
+		       http://www.fourmilab.ch/
+
+*/
+
+#include <math.h>
+
+#define FALSE 0
+#define TRUE  1
+
+#define log2of10 3.32192809488736234787
+
+static int binary = FALSE;	   /* Treat input as a bitstream */
+
+static long ccount[256],	   /* Bins to count occurrences of values */
+	    totalc = 0; 	   /* Total bytes counted */
+static double prob[256];	   /* Probabilities per bin for entropy */
+
+/*  RT_LOG2  --  Calculate log to the base 2  */
+
+static double rt_log2(double x)
+{
+    return log2of10 * log10(x);
+}
+
+#define MONTEN	6		      /* Bytes used as Monte Carlo
+					 co-ordinates.	This should be no more
+					 bits than the mantissa of your
+                                         "double" floating point type. */
+
+static int mp, sccfirst;
+static unsigned int monte[MONTEN];
+static long inmont, mcount;
+static double cexp, incirc, montex, montey, montepi,
+	      scc, sccun, sccu0, scclast, scct1, scct2, scct3,
+	      ent, chisq, datasum;
+
+/*  RT_INIT  --  Initialise random test counters.  */
+
+void rt_init(int binmode)
+{
+    int i;
+
+    binary = binmode;	       /* Set binary / byte mode */
+
+    /* Initialise for calculations */
+
+    ent = 0.0;		       /* Clear entropy accumulator */
+    chisq = 0.0;	       /* Clear Chi-Square */
+    datasum = 0.0;	       /* Clear sum of bytes for arithmetic mean */
+
+    mp = 0;		       /* Reset Monte Carlo accumulator pointer */
+    mcount = 0; 	       /* Clear Monte Carlo tries */
+    inmont = 0; 	       /* Clear Monte Carlo inside count */
+    incirc = 65535.0 * 65535.0;/* In-circle distance for Monte Carlo */
+
+    sccfirst = TRUE;	       /* Mark first time for serial correlation */
+    scct1 = scct2 = scct3 = 0.0; /* Clear serial correlation terms */
+
+    incirc = pow(pow(256.0, (double) (MONTEN / 2)) - 1, 2.0);
+
+    for (i = 0; i < 256; i++) {
+	ccount[i] = 0;
+    }
+    totalc = 0;
+}
+
+/*  RT_ADD  --	Add one or more bytes to accumulation.	*/
+
+void rt_add(void *buf, int bufl)
+{
+    unsigned char *bp = buf;
+    int oc, c, bean;
+
+    while (bean = 0, (bufl-- > 0)) {
+       oc = *bp++;
+
+       do {
+	  if (binary) {
+	     c = !!(oc & 0x80);
+	  } else {
+	     c = oc;
+	  }
+	  ccount[c]++;		  /* Update counter for this bin */
+	  totalc++;
+
+	  /* Update inside / outside circle counts for Monte Carlo
+	     computation of PI */
+
+	  if (bean == 0) {
+	      monte[mp++] = oc;       /* Save character for Monte Carlo */
+	      if (mp >= MONTEN) {     /* Calculate every MONTEN character */
+		 int mj;
+
+		 mp = 0;
+		 mcount++;
+		 montex = montey = 0;
+		 for (mj = 0; mj < MONTEN / 2; mj++) {
+		    montex = (montex * 256.0) + monte[mj];
+		    montey = (montey * 256.0) + monte[(MONTEN / 2) + mj];
+		 }
+		 if ((montex * montex + montey *  montey) <= incirc) {
+		    inmont++;
+		 }
+	      }
+	  }
+
+	  /* Update calculation of serial correlation coefficient */
+
+	  sccun = c;
+	  if (sccfirst) {
+	     sccfirst = FALSE;
+	     scclast = 0;
+	     sccu0 = sccun;
+	  } else {
+	     scct1 = scct1 + scclast * sccun;
+	  }
+	  scct2 = scct2 + sccun;
+	  scct3 = scct3 + (sccun * sccun);
+	  scclast = sccun;
+	  oc <<= 1;
+       } while (binary && (++bean < 8));
+    }
+}
+
+/*  RT_END  --	Complete calculation and return results.  */
+
+void rt_end(double *r_ent, double *r_chisq, double *r_mean,
+	    double *r_montepicalc, double *r_scc)
+{
+    int i;
+
+    /* Complete calculation of serial correlation coefficient */
+
+    scct1 = scct1 + scclast * sccu0;
+    scct2 = scct2 * scct2;
+    scc = totalc * scct3 - scct2;
+    if (scc == 0.0) {
+       scc = -100000;
+    } else {
+       scc = (totalc * scct1 - scct2) / scc;
+    }
+
+    /* Scan bins and calculate probability for each bin and
+       Chi-Square distribution.  The probability will be reused
+       in the entropy calculation below.  While we're at it,
+       we sum of all the data which will be used to compute the
+       mean. */
+       
+    cexp = totalc / (binary ? 2.0 : 256.0);  /* Expected count per bin */
+    for (i = 0; i < (binary ? 2 : 256); i++) {
+       double a = ccount[i] - cexp;;
+       
+       prob[i] = ((double) ccount[i]) / totalc;       
+       chisq += (a * a) / cexp;
+       datasum += ((double) i) * ccount[i];
+    }
+
+    /* Calculate entropy */
+
+    for (i = 0; i < (binary ? 2 : 256); i++) {
+       if (prob[i] > 0.0) {
+	  ent += prob[i] * rt_log2(1 / prob[i]);
+       }
+    }
+
+    /* Calculate Monte Carlo value for PI from percentage of hits
+       within the circle */
+
+    montepi = 4.0 * (((double) inmont) / mcount);
+
+    /* Return results through arguments */
+
+    *r_ent = ent;
+    *r_chisq = chisq;
+    *r_mean = datasum / totalc;
+    *r_montepicalc = montepi;
+    *r_scc = scc;
+}
diff --git a/ent/randtest.h b/ent/randtest.h
new file mode 100644
index 0000000..082d0fb
--- /dev/null
+++ b/ent/randtest.h
@@ -0,0 +1,7 @@
+
+/*  Random test function prototypes  */
+
+extern void rt_init(int binmode);
+extern void rt_add(void *buf, int bufl);
+extern void rt_end(double *r_ent, double *r_chisq, double *r_mean,
+                   double *r_montepicalc, double *r_scc);