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      1 /*	$NetBSD: test_fx.c,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2009 Kungliga Tekniska Hgskolan
      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 struct {
     40     char *p1;
     41     char *pepper1;
     42     krb5_enctype e1;
     43     char *p2;
     44     char *pepper2;
     45     krb5_enctype e2;
     46     krb5_enctype e3;
     47     char *key;
     48     size_t len;
     49 } cf2[] = {
     50     {
     51 	"key1", "a", ETYPE_AES128_CTS_HMAC_SHA1_96,
     52 	"key2", "b", ETYPE_AES128_CTS_HMAC_SHA1_96,
     53 	ETYPE_AES128_CTS_HMAC_SHA1_96,
     54 	"\x97\xdf\x97\xe4\xb7\x98\xb2\x9e\xb3\x1e\xd7\x28\x02\x87\xa9\x2a",
     55 	16
     56     },
     57     {
     58 	"key1", "a", ETYPE_AES256_CTS_HMAC_SHA1_96,
     59 	"key2", "b", ETYPE_AES256_CTS_HMAC_SHA1_96,
     60 	ETYPE_AES256_CTS_HMAC_SHA1_96,
     61 	"\x4d\x6c\xa4\xe6\x29\x78\x5c\x1f\x01\xba\xf5\x5e\x2e\x54\x85\x66"
     62 	"\xb9\x61\x7a\xe3\xa9\x68\x68\xc3\x37\xcb\x93\xb5\xe7\x2b\x1c\x7b",
     63 	32
     64     },
     65     {
     66 	"key1", "a", ETYPE_AES128_CTS_HMAC_SHA1_96,
     67 	"key2", "b", ETYPE_AES128_CTS_HMAC_SHA1_96,
     68 	ETYPE_AES256_CTS_HMAC_SHA1_96,
     69 	"\x97\xdf\x97\xe4\xb7\x98\xb2\x9e\xb3\x1e\xd7\x28\x2\x87\xa9\x2a"
     70 	"\x1\x96\xfa\xf2\x44\xf8\x11\x20\xc2\x1c\x51\x17\xb3\xe6\xeb\x98",
     71 	32
     72     },
     73     {
     74 	"key1", "a", ETYPE_AES256_CTS_HMAC_SHA1_96,
     75 	"key2", "b", ETYPE_AES256_CTS_HMAC_SHA1_96,
     76 	ETYPE_AES128_CTS_HMAC_SHA1_96,
     77 	"\x4d\x6c\xa4\xe6\x29\x78\x5c\x1f\x01\xba\xf5\x5e\x2e\x54\x85\x66",
     78 	16
     79     },
     80     {
     81 	"key1", "a", ETYPE_AES128_CTS_HMAC_SHA1_96,
     82 	"key2", "b", ETYPE_AES256_CTS_HMAC_SHA1_96,
     83 	ETYPE_AES256_CTS_HMAC_SHA1_96,
     84 	"\x88\xbd\xb2\xa9\xf\x3e\x52\x5a\xb0\x5f\x68\xc5\x43\x9a\x4d\x5e"
     85 	"\x9c\x2b\xfd\x2b\x02\x24\xde\x39\xb5\x82\xf4\xbb\x05\xfe\x2\x2e",
     86 	32
     87     },
     88     {
     89 	"key1", "a", ETYPE_ARCFOUR_HMAC_MD5,
     90 	"key2", "b", ETYPE_ARCFOUR_HMAC_MD5,
     91 	ETYPE_ARCFOUR_HMAC_MD5,
     92         "\x24\xd7\xf6\xb6\xba\xe4\xe5\xc0\x0d\x20\x82\xc5\xeb\xab\x36\x72",
     93 	16
     94     },
     95     /* We don't yet have a PRF for 1DES in Heimdal */
     96     {
     97 	"key1", "a", ETYPE_DES_CBC_CRC,
     98 	"key2", "b", ETYPE_DES_CBC_CRC,
     99 	ETYPE_DES_CBC_CRC,
    100         "\x43\xba\xe3\x73\x8c\x94\x67\xe6",
    101 	8
    102     },
    103     {
    104 	"key1", "a", ETYPE_DES3_CBC_SHA1,
    105 	"key2", "b", ETYPE_DES3_CBC_SHA1,
    106 	ETYPE_DES3_CBC_SHA1,
    107         "\xe5\x8f\x9e\xb6\x43\x86\x2c\x13\xad\x38\xe5\x29\x31\x34\x62\xa7"
    108         "\xf7\x3e\x62\x83\x4f\xe5\x4a\x01",
    109 	24
    110     },
    111 };
    112 
    113 
    114 static void
    115 test_cf2(krb5_context context)
    116 {
    117     krb5_error_code ret;
    118     krb5_data pw, p1, p2;
    119     krb5_salt salt;
    120     krb5_keyblock k1, k2, k3;
    121     krb5_crypto c1, c2;
    122     unsigned int i;
    123     unsigned int errors = 0;
    124 
    125     ret = krb5_allow_weak_crypto(context, 1);
    126     if (ret)
    127         krb5_err(context, 1, ret, "krb5_allow_weak_crypto");
    128 
    129     for (i = 0; i < sizeof(cf2)/sizeof(cf2[0]); i++) {
    130 	pw.data = cf2[i].p1;
    131 	pw.length = strlen(cf2[i].p1);
    132 	salt.salttype = (krb5_salttype)KRB5_PADATA_PW_SALT;
    133 	salt.saltvalue.data = cf2[i].p1;
    134 	salt.saltvalue.length = strlen(cf2[i].p1);
    135 
    136 	ret = krb5_string_to_key_data_salt(context,
    137 					   cf2[i].e1,
    138 					   pw,
    139 					   salt,
    140 					   &k1);
    141 	if (ret)
    142 	    krb5_err(context, 1, ret, "krb5_string_to_key_data_salt");
    143 
    144 	ret = krb5_crypto_init(context, &k1, 0, &c1);
    145 	if (ret)
    146 	    krb5_err(context, 1, ret, "krb5_crypto_init");
    147 
    148 	pw.data = cf2[i].p2;
    149 	pw.length = strlen(cf2[i].p2);
    150 	salt.saltvalue.data = cf2[i].p2;
    151 	salt.saltvalue.length = strlen(cf2[i].p2);
    152 
    153 	ret = krb5_string_to_key_data_salt(context,
    154 					   cf2[i].e2,
    155 					   pw,
    156 					   salt,
    157 					   &k2);
    158 	if (ret)
    159 	    krb5_err(context, 1, ret, "krb5_string_to_key_data_salt");
    160 
    161 	ret = krb5_crypto_init(context, &k2, 0, &c2);
    162 	if (ret)
    163 	    krb5_err(context, 1, ret, "krb5_crypto_init");
    164 
    165 
    166 	p1.data = cf2[i].pepper1;
    167 	p1.length = strlen(cf2[i].pepper1);
    168 
    169 	p2.data = cf2[i].pepper2;
    170 	p2.length = strlen(cf2[i].pepper2);
    171 
    172 	ret = krb5_crypto_fx_cf2(context, c1, c2, &p1, &p2, cf2[i].e3, &k3);
    173         if (ret == KRB5_PROG_ETYPE_NOSUPP) {
    174             krb5_warn(context, ret, "KRB-FX-CF2 not supported for enctype %d",
    175                       cf2[i].e1);
    176             continue;
    177         } else if (ret) {
    178 	    krb5_err(context, 1, ret, "krb5_crypto_fx_cf2");
    179         }
    180 
    181 	if (k3.keytype != cf2[i].e3) {
    182             errors++;
    183 	    krb5_warnx(context, "length not right for enctype %d", cf2[i].e3);
    184             continue;
    185         }
    186 	if (k3.keyvalue.length != cf2[i].len ||
    187 	    memcmp(k3.keyvalue.data, cf2[i].key, cf2[i].len) != 0) {
    188             errors++;
    189 	    krb5_warnx(context, "key not same for enctypes %d %d %d",
    190                        cf2[i].e1, cf2[i].e2, cf2[i].e3);
    191             continue;
    192         }
    193 
    194 	krb5_crypto_destroy(context, c1);
    195 	krb5_crypto_destroy(context, c2);
    196 
    197 	krb5_free_keyblock_contents(context, &k1);
    198 	krb5_free_keyblock_contents(context, &k2);
    199 	krb5_free_keyblock_contents(context, &k3);
    200     }
    201 
    202     if (errors)
    203         krb5_errx(context, 1, "%u KRB-FX-CF2 vectors failed", errors);
    204 }
    205 
    206 static int version_flag = 0;
    207 static int help_flag	= 0;
    208 
    209 static struct getargs args[] = {
    210     {"version",	0,	arg_flag,	&version_flag,
    211      "print version", NULL },
    212     {"help",	0,	arg_flag,	&help_flag,
    213      NULL, NULL }
    214 };
    215 
    216 static void
    217 usage (int ret)
    218 {
    219     arg_printusage (args,
    220 		    sizeof(args)/sizeof(*args),
    221 		    NULL,
    222 		    "");
    223     exit (ret);
    224 }
    225 
    226 int
    227 main(int argc, char **argv)
    228 {
    229     krb5_context context;
    230     krb5_error_code ret;
    231     int optidx = 0;
    232 
    233     setprogname(argv[0]);
    234 
    235     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
    236 	usage(1);
    237 
    238     if (help_flag)
    239 	usage (0);
    240 
    241     if(version_flag){
    242 	print_version(NULL);
    243 	exit(0);
    244     }
    245 
    246     ret = krb5_init_context(&context);
    247     if (ret)
    248 	errx (1, "krb5_init_context failed: %d", ret);
    249 
    250     test_cf2(context);
    251 
    252     krb5_free_context(context);
    253 
    254     return 0;
    255 }
    256