1 /* $NetBSD: test_crypto_wrapping.c,v 1.1.1.1 2011/04/13 18:15:38 elric Exp $ */
2
3 /*
4 * Copyright (c) 2005 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of KTH nor the names of its contributors may be
20 * used to endorse or promote products derived from this software without
21 * specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
24 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
34
35 #include "krb5_locl.h"
36 #include <err.h>
37 #include <krb5/getarg.h>
38
39 static void
test_wrapping(krb5_context context,size_t min_size,size_t max_size,size_t step,krb5_enctype etype)40 test_wrapping(krb5_context context,
41 size_t min_size,
42 size_t max_size,
43 size_t step,
44 krb5_enctype etype)
45 {
46 krb5_error_code ret;
47 krb5_keyblock key;
48 krb5_crypto crypto;
49 krb5_data data;
50 char *etype_name;
51 void *buf;
52 size_t size;
53
54 ret = krb5_generate_random_keyblock(context, etype, &key);
55 if (ret)
56 krb5_err(context, 1, ret, "krb5_generate_random_keyblock");
57
58 ret = krb5_enctype_to_string(context, etype, &etype_name);
59 if (ret)
60 krb5_err(context, 1, ret, "krb5_enctype_to_string");
61
62 buf = malloc(max_size);
63 if (buf == NULL)
64 krb5_errx(context, 1, "out of memory");
65 memset(buf, 0, max_size);
66
67 ret = krb5_crypto_init(context, &key, 0, &crypto);
68 if (ret)
69 krb5_err(context, 1, ret, "krb5_crypto_init");
70
71 for (size = min_size; size < max_size; size += step) {
72 size_t wrapped_size;
73
74 ret = krb5_encrypt(context, crypto, 0, buf, size, &data);
75 if (ret)
76 krb5_err(context, 1, ret, "encrypt size %lu using %s",
77 (unsigned long)size, etype_name);
78
79 wrapped_size = krb5_get_wrapped_length(context, crypto, size);
80
81 if (wrapped_size != data.length)
82 krb5_errx(context, 1, "calculated wrapped length %lu != "
83 "real wrapped length %lu for data length %lu using "
84 "enctype %s",
85 (unsigned long)wrapped_size,
86 (unsigned long)data.length,
87 (unsigned long)size,
88 etype_name);
89 krb5_data_free(&data);
90 }
91
92 free(etype_name);
93 free(buf);
94 krb5_crypto_destroy(context, crypto);
95 krb5_free_keyblock_contents(context, &key);
96 }
97
98
99
100 static int version_flag = 0;
101 static int help_flag = 0;
102
103 static struct getargs args[] = {
104 {"version", 0, arg_flag, &version_flag,
105 "print version", NULL },
106 {"help", 0, arg_flag, &help_flag,
107 NULL, NULL }
108 };
109
110 static void
usage(int ret)111 usage (int ret)
112 {
113 arg_printusage (args,
114 sizeof(args)/sizeof(*args),
115 NULL,
116 "");
117 exit (ret);
118 }
119
120 int
main(int argc,char ** argv)121 main(int argc, char **argv)
122 {
123 krb5_context context;
124 krb5_error_code ret;
125 int i, optidx = 0;
126
127 krb5_enctype enctypes[] = {
128 #ifdef HEIM_WEAK_CRYPTO
129 ETYPE_DES_CBC_CRC,
130 ETYPE_DES_CBC_MD4,
131 ETYPE_DES_CBC_MD5,
132 #endif
133 ETYPE_DES3_CBC_SHA1,
134 ETYPE_ARCFOUR_HMAC_MD5,
135 ETYPE_AES128_CTS_HMAC_SHA1_96,
136 ETYPE_AES256_CTS_HMAC_SHA1_96
137 };
138
139 setprogname(argv[0]);
140
141 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
142 usage(1);
143
144 if (help_flag)
145 usage (0);
146
147 if(version_flag){
148 print_version(NULL);
149 exit(0);
150 }
151
152 argc -= optidx;
153 argv += optidx;
154
155 ret = krb5_init_context(&context);
156 if (ret)
157 errx (1, "krb5_init_context failed: %d", ret);
158
159 for (i = 0; i < sizeof(enctypes)/sizeof(enctypes[0]); i++) {
160 krb5_enctype_enable(context, enctypes[i]);
161
162 test_wrapping(context, 0, 1024, 1, enctypes[i]);
163 test_wrapping(context, 1024, 1024 * 100, 1024, enctypes[i]);
164 }
165 krb5_free_context(context);
166
167 return 0;
168 }
169