[fsbl] add fsbl for cv181x/cv180x

Change-Id: I6809bc5016d4bc148f62be2ed3f8e928ec111f19
2023-02-23 00:14:25 +08:00
parent 5c7dd7acc3
commit 4bc998a131
1392 changed files with 335829 additions and 0 deletions
--- a/fsbl/lib/BigDigits/t_bdRandomOctets.c
+++ b/fsbl/lib/BigDigits/t_bdRandomOctets.c
@ -0,0 +1,124 @@
+/* $Id: t_bdRandomOctets.c $ */
+
+/* Examples using the `bigdRand` functions:
+	bdRandomOctets()
+	bdRandomSeeded()
+	bdRandomNumber()
+*/
+
+/***** BEGIN LICENSE BLOCK *****
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * Copyright (c) 2001-16 David Ireland, D.I. Management Services Pty Limited
+ * <http://www.di-mgt.com.au/bigdigits.html>. All rights reserved.
+ *
+ ***** END LICENSE BLOCK *****/
+/*
+ * Last updated:
+ * $Date: 2016-03-31 09:51:00 $
+ * $Revision: 2.6.1 $
+ * $Author: dai $
+ */
+
+#include <stdio.h>
+#include <assert.h>
+#include <math.h>	// For sqrt in statistics
+#include "bigd.h"
+#include "bigdRand.h"
+
+#define TEST_LEN 24
+#define TEST_N 32
+#define NTESTS (TEST_N * 10)
+
+static void pr_byteshex(const char *prefix, const unsigned char *bytes, size_t nbytes, const char *suffix)
+{
+	size_t i;
+	if (prefix) printf("%s", prefix);
+	for (i = 0; i < nbytes; i++)
+	{
+		printf("%02X", bytes[i]);
+	}
+	if (suffix) printf("%s", suffix);
+}
+
+int main(void)
+{
+	unsigned char bytes[TEST_LEN];
+	size_t nbytes;
+	int ntests, itest, i;
+	BIGD a, p, N;
+	int score[TEST_N] = { 0 };
+	int t;
+	BIGD temp;
+	int themin, themax;
+	double mean, var, sd;
+	
+	ntests = TEST_LEN;
+	printf("Testing bdRandomOctets...\n");
+	for (itest = 0; itest < ntests; itest++)
+	{
+		//printf("Test %d...\n", itest+1);
+		nbytes = TEST_LEN - itest;
+		bdRandomOctets(bytes, nbytes, NULL, 0);
+		pr_byteshex("", bytes, nbytes, "\n");
+	}
+
+	// Now test bdRandomSeeded calling internal fn bdRandomOctets
+	printf("Testing bdRandomSeeded with bdRandomOctets()...\n");
+	a = bdNew();
+	for (i = 0; i < 10; i++)
+	{
+		bdRandomSeeded(a, 128, NULL, 0, bdRandomOctets);
+		bdPrintHex("r=", a, "\n");
+	}
+
+	// And generate some primes
+	printf("Generating primes with bdGeneratePrime() calling bdRandomOctets()...\n");
+	p = bdNew();
+	for (i = 0; i < 4; i++)
+	{
+		bdGeneratePrime(p, 256, 128, NULL, 0, bdRandomOctets);
+		bdPrintHex("p=", p, "\n");
+	}
+
+	// Generate some random numbers in the range [0,N-1] where N = 32
+	// (and keep score of count for each value)
+	temp = bdNew();
+	N = bdNew();
+	bdSetShort(N, TEST_N);
+	bdPrintDecimal("Random numbers in the range [0,N-1] computed by bdRandomNumber(N), N=", N, ":\n");
+	for (i = 0; i < NTESTS; i++)
+	{
+		bdRandomNumber(a, N);
+		bdPrintDecimal("", a, " ");
+		/* Convert BIGD into an int */
+		t = (int)bdShortMod(temp, a, 0xFFFFFFFF);
+		assert(0 <= t && t < TEST_N);
+		score[t] += 1;
+	}
+	printf("\n");
+	printf("[Statistics] Distribution over %d tests (EV=%.1f):\n", NTESTS, (double)NTESTS / TEST_N);
+	mean = var = 0.0;
+	themin = 99999;
+	themax = 0;
+	for (i = 0; i < TEST_N; i++)
+	{
+		int v = score[i];
+		printf("%d ", v);
+		if (v > themax) themax = v;
+		if (v < themin) themin = v;
+		mean += (double)v;
+		var += v * v;
+	}
+	printf("\n");
+	mean /= TEST_N;
+	var = var / TEST_N - mean*mean;
+	sd = sqrt(var);
+	printf("mean=%.3f sd=%.3f min=%d (%.2f sd) max=%d (%+.2f sd)\n", 
+		mean, sd, themin, (themin-mean)/sd, themax, (themax-mean)/sd);
+
+	return 0;
+}