nss-3.21nss-3.21

1 files changed, 70 insertions, 0 deletions

diff --git a/nss/lib/freebl/mpi/tests/mptest-5.c b/nss/lib/freebl/mpi/tests/mptest-5.c
new file mode 100644
index 0000000..73e8901
--- /dev/null
+++ b/nss/lib/freebl/mpi/tests/mptest-5.c
@@ -0,0 +1,70 @@
+/*
+ * Simple test driver for MPI library
+ *
+ * Test 5: Other number theoretic functions
+ *
+ * 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/. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <limits.h>
+
+#include "mpi.h"
+
+int main(int argc, char *argv[])
+{
+  mp_int   a, b, c, x, y;
+
+  if(argc < 3) {
+    fprintf(stderr, "Usage: %s <a> <b>\n", argv[0]);
+    return 1;
+  }
+
+  printf("Test 5: Number theoretic functions\n\n");
+
+  mp_init(&a);
+  mp_init(&b);
+
+  mp_read_radix(&a, argv[1], 10);
+  mp_read_radix(&b, argv[2], 10);
+
+  printf("a = "); mp_print(&a, stdout); fputc('\n', stdout);
+  printf("b = "); mp_print(&b, stdout); fputc('\n', stdout);
+  
+  mp_init(&c);
+  printf("\nc = (a, b)\n");
+
+  mp_gcd(&a, &b, &c);
+  printf("Euclid: c = "); mp_print(&c, stdout); fputc('\n', stdout);
+/*
+  mp_bgcd(&a, &b, &c);
+  printf("Binary: c = "); mp_print(&c, stdout); fputc('\n', stdout);
+*/
+  mp_init(&x);
+  mp_init(&y);
+  printf("\nc = (a, b) = ax + by\n");
+
+  mp_xgcd(&a, &b, &c, &x, &y);
+  printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
+  printf("x = "); mp_print(&x, stdout); fputc('\n', stdout);
+  printf("y = "); mp_print(&y, stdout); fputc('\n', stdout);
+
+  printf("\nc = a^-1 (mod b)\n");
+  if(mp_invmod(&a, &b, &c) == MP_UNDEF) {
+    printf("a has no inverse mod b\n");
+  } else {
+    printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
+  }
+
+  mp_clear(&y);
+  mp_clear(&x);
+  mp_clear(&c);
+  mp_clear(&b);
+  mp_clear(&a);
+
+  return 0;
+}