1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/srtp/src/crypto/test/rand_gen.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,140 @@
1.4 +/*
1.5 + * rand_gen.c
1.6 + *
1.7 + * a random source (random number generator)
1.8 + *
1.9 + * David A. McGrew
1.10 + * Cisco Systems, Inc.
1.11 + */
1.12 +/*
1.13 + *
1.14 + * Copyright(c) 2001-2006 Cisco Systems, Inc.
1.15 + * All rights reserved.
1.16 + *
1.17 + * Redistribution and use in source and binary forms, with or without
1.18 + * modification, are permitted provided that the following conditions
1.19 + * are met:
1.20 + *
1.21 + * Redistributions of source code must retain the above copyright
1.22 + * notice, this list of conditions and the following disclaimer.
1.23 + *
1.24 + * Redistributions in binary form must reproduce the above
1.25 + * copyright notice, this list of conditions and the following
1.26 + * disclaimer in the documentation and/or other materials provided
1.27 + * with the distribution.
1.28 + *
1.29 + * Neither the name of the Cisco Systems, Inc. nor the names of its
1.30 + * contributors may be used to endorse or promote products derived
1.31 + * from this software without specific prior written permission.
1.32 + *
1.33 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.34 + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.35 + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
1.36 + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
1.37 + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
1.38 + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1.39 + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1.40 + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.41 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1.42 + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.43 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
1.44 + * OF THE POSSIBILITY OF SUCH DAMAGE.
1.45 + *
1.46 + */
1.47 +
1.48 +
1.49 +#include <stdio.h> /* for printf() */
1.50 +#include <unistd.h> /* for getopt() */
1.51 +#include "crypto_kernel.h"
1.52 +
1.53 +/*
1.54 + * MAX_PRINT_STRING_LEN is defined in datatypes.h, and is the length
1.55 + * of the largest hexadecimal string that can be generated by the
1.56 + * function octet_string_hex_string().
1.57 + */
1.58 +
1.59 +#define BUF_LEN (MAX_PRINT_STRING_LEN/2)
1.60 +
1.61 +void
1.62 +usage(char *prog_name) {
1.63 + printf("usage: %s -n <num_bytes> [-l][ -d debug_module ]*\n"
1.64 + " -n <num> output <num> random bytes, where <num>"
1.65 + " is between zero and %d\n"
1.66 + " -l list the avaliable debug modules\n"
1.67 + " -d <mod> turn on debugging module <mod>\n",
1.68 + prog_name, BUF_LEN);
1.69 + exit(255);
1.70 +}
1.71 +
1.72 +int
1.73 +main (int argc, char *argv[]) {
1.74 + extern char *optarg;
1.75 + int q;
1.76 + int num_octets = 0;
1.77 + unsigned do_list_mods = 0;
1.78 + err_status_t status;
1.79 +
1.80 + if (argc == 1)
1.81 + usage(argv[0]);
1.82 +
1.83 + /* initialize kernel - we need to do this before anything else */
1.84 + status = crypto_kernel_init();
1.85 + if (status) {
1.86 + printf("error: crypto_kernel init failed\n");
1.87 + exit(1);
1.88 + }
1.89 +
1.90 + /* process input arguments */
1.91 + while (1) {
1.92 + q = getopt(argc, argv, "ld:n:");
1.93 + if (q == -1)
1.94 + break;
1.95 + switch (q) {
1.96 + case 'd':
1.97 + status = crypto_kernel_set_debug_module(optarg, 1);
1.98 + if (status) {
1.99 + printf("error: set debug module (%s) failed\n", optarg);
1.100 + exit(1);
1.101 + }
1.102 + break;
1.103 + case 'l':
1.104 + do_list_mods = 1;
1.105 + break;
1.106 + case 'n':
1.107 + num_octets = atoi(optarg);
1.108 + if (num_octets < 0 || num_octets > BUF_LEN)
1.109 + usage(argv[0]);
1.110 + break;
1.111 + default:
1.112 + usage(argv[0]);
1.113 + }
1.114 + }
1.115 +
1.116 + if (do_list_mods) {
1.117 + status = crypto_kernel_list_debug_modules();
1.118 + if (status) {
1.119 + printf("error: list of debug modules failed\n");
1.120 + exit(1);
1.121 + }
1.122 + }
1.123 +
1.124 + if (num_octets > 0) {
1.125 + uint8_t buffer[BUF_LEN];
1.126 +
1.127 + status = crypto_get_random(buffer, num_octets);
1.128 + if (status) {
1.129 + printf("error: failure in random source\n");
1.130 + } else {
1.131 + printf("%s\n", octet_string_hex_string(buffer, num_octets));
1.132 + }
1.133 + }
1.134 +
1.135 + status = crypto_kernel_shutdown();
1.136 + if (status) {
1.137 + printf("error: crypto_kernel shutdown failed\n");
1.138 + exit(1);
1.139 + }
1.140 +
1.141 + return 0;
1.142 +}
1.143 +
