1/*
2 * Copyright (c) 2006 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of KTH nor the names of its contributors may be
18 *    used to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
22 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
28 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include "krb5/gsskrb5_locl.h"
35
36RCSID("$Id: test_cfx.c 19031 2006-11-13 18:02:57Z lha $");
37
38struct range {
39    size_t lower;
40    size_t upper;
41};
42
43struct range tests[] = {
44    { 0, 1040 },
45    { 2040, 2080 },
46    { 4080, 5000 },
47    { 8180, 8292 },
48    { 9980, 10010 }
49};
50
51static void
52test_range(const struct range *r, int integ,
53	   krb5_context context, krb5_crypto crypto)
54{
55    krb5_error_code ret;
56    size_t size, rsize;
57
58    for (size = r->lower; size < r->upper; size++) {
59	OM_uint32 max_wrap_size;
60	size_t cksumsize;
61	uint16_t padsize;
62
63	ret = _gsskrb5cfx_max_wrap_length_cfx(context,
64					      crypto,
65					      integ,
66					      size,
67					      &max_wrap_size);
68	if (ret)
69	    krb5_errx(context, 1, "_gsskrb5cfx_max_wrap_length_cfx: %d", ret);
70	if (max_wrap_size == 0)
71	    continue;
72
73	ret = _gsskrb5cfx_wrap_length_cfx(context,
74					  crypto,
75					  integ,
76					  max_wrap_size,
77					  &rsize, &cksumsize, &padsize);
78	if (ret)
79	    krb5_errx(context, 1, "_gsskrb5cfx_wrap_length_cfx: %d", ret);
80
81	if (size < rsize)
82	    krb5_errx(context, 1,
83		      "size (%d) < rsize (%d) for max_wrap_size %d",
84		      (int)size, (int)rsize, (int)max_wrap_size);
85    }
86}
87
88static void
89test_special(krb5_context context, krb5_crypto crypto,
90	     int integ, size_t testsize)
91{
92    krb5_error_code ret;
93    size_t rsize;
94    OM_uint32 max_wrap_size;
95    size_t cksumsize;
96    uint16_t padsize;
97
98    ret = _gsskrb5cfx_max_wrap_length_cfx(context,
99					  crypto,
100					  integ,
101					  testsize,
102					  &max_wrap_size);
103    if (ret)
104	krb5_errx(context, 1, "_gsskrb5cfx_max_wrap_length_cfx: %d", ret);
105
106    ret = _gsskrb5cfx_wrap_length_cfx(context,
107				      crypto,
108				      integ,
109				      max_wrap_size,
110				      &rsize, &cksumsize, &padsize);
111    if (ret)
112	krb5_errx(context, 1, "_gsskrb5cfx_wrap_length_cfx: %d", ret);
113
114    if (testsize < rsize)
115	krb5_errx(context, 1,
116		  "testsize (%d) < rsize (%d) for max_wrap_size %d",
117		  (int)testsize, (int)rsize, (int)max_wrap_size);
118}
119
120
121
122
123int
124main(int argc, char **argv)
125{
126    krb5_keyblock keyblock;
127    krb5_error_code ret;
128    krb5_context context;
129    krb5_crypto crypto;
130    int i;
131
132    ret = krb5_init_context(&context);
133    if (ret)
134	errx(1, "krb5_context_init: %d", ret);
135
136    ret = krb5_generate_random_keyblock(context,
137					ENCTYPE_AES256_CTS_HMAC_SHA1_96,
138					&keyblock);
139    if (ret)
140	krb5_err(context, 1, ret, "krb5_generate_random_keyblock");
141
142    ret = krb5_crypto_init(context, &keyblock, 0, &crypto);
143    if (ret)
144	krb5_err(context, 1, ret, "krb5_crypto_init");
145
146    test_special(context, crypto, 1, 60);
147    test_special(context, crypto, 0, 60);
148
149    for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
150	test_range(&tests[i], 1, context, crypto);
151	test_range(&tests[i], 0, context, crypto);
152    }
153
154    krb5_free_keyblock_contents(context, &keyblock);
155    krb5_crypto_destroy(context, crypto);
156    krb5_free_context(context);
157
158    return 0;
159}
160