lib/krb5/test_pknistkdf.c

   1 /*
   2  * Copyright (c) 2008 Kungliga Tekniska Högskolan
   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 #include "krb5_locl.h"
  34 #include <pkinit_asn1.h>
  35 #include <err.h>
  36 #include <getarg.h>
  37 #include <hex.h>
  38
  39 static int verbose_flag = 0;
  40
  41 struct testcase {
  42     const heim_oid *oid;
  43     krb5_data Z;
  44     const char *client;
  45     const char *server;
  46     krb5_enctype enctype;
  47     krb5_data as_req;
  48     krb5_data pk_as_rep;
  49     krb5_data ticket;
  50
  51     krb5_data key;
  52 } tests[] = {
  53     /* 0 */
  54     {
  55         NULL,                            /* AlgorithmIdentifier */
  56         /* == &asn1_oid_id_pkinit_kdf_ah_sha1.  Addresses of exported
  57          * symbols are not considered constant on all platforms
  58          * (Windows).  So we set it in main() below. */
  59
  60         { /* Z */
  61             256,
  62             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  63             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  64             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  65             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  66             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  67             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  68             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  69             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  70             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  71             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  72             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  73             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  74             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  75             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  76             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  77             "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
  78         },
  79         "lha@SU.SE", /* client, partyUInfo */
  80         "krbtgt/SU.SE@SU.SE", /* server, partyVInfo */
  81         ETYPE_AES256_CTS_HMAC_SHA1_96, /* enctype */
  82         { /* as_req */
  83             10,
  84             "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
  85         },
  86         { /* pk_as_rep */
  87             9,
  88             "\xBB\xBB\xBB\xBB\xBB\xBB\xBB\xBB\xBB"
  89         },
  90         { /* ticket */
  91             55,
  92             "\x61\x35\x30\x33\xa0\x03\x02\x01\x05\xa1\x07\x1b\x05\x53\x55\x2e"
  93             "\x53\x45\xa2\x10\x30\x0e\xa0\x03\x02\x01\x01\xa1\x07\x30\x05\x1b"
  94             "\x03\x6c\x68\x61\xa3\x11\x30\x0f\xa0\x03\x02\x01\x12\xa2\x08\x04"
  95             "\x06\x68\x65\x6a\x68\x65\x6a"
  96         },
  97         { /* key */
  98             32,
  99             "\xc7\x62\x89\xec\x4b\x28\xa6\x91\xff\xce\x80\xbb\xb7\xec\x82\x41"
 100             "\x52\x3f\x99\xb1\x90\xcf\x2d\x34\x8f\x54\xa8\x65\x81\x2c\x32\x73"
 101         }
 102     }
 103 };
 104
 105 #ifdef MAKETICKET
 106 static void
 107 fooTicket(void)
 108 {
 109     krb5_error_code ret;
 110     krb5_data data;
 111     size_t size;
 112     Ticket t;
 113
 114     t.tkt_vno = 5;
 115     t.realm = "SU.SE";
 116     t.sname.name_type = KRB5_NT_PRINCIPAL;
 117     t.sname.name_string.len = 1;
 118     t.sname.name_string.val = ecalloc(1, sizeof(t.sname.name_string.val[0]));
 119     t.sname.name_string.val[0] = estrdup("lha");
 120     t.enc_part.etype = ETYPE_AES256_CTS_HMAC_SHA1_96;
 121     t.enc_part.kvno = NULL;
 122     t.enc_part.cipher.length = 6;
 123     t.enc_part.cipher.data = "hejhej";
 124
 125     ASN1_MALLOC_ENCODE(Ticket, data.data, data.length, &t, &size, ret);
 126     if (ret)
 127         errx(1, "ASN1_MALLOC_ENCODE(Ticket)");
 128
 129     rk_dumpdata("foo", data.data, data.length);
 130     free(data.data);
 131 }
 132 #endif
 133
 134 static void
 135 test_dh2key(krb5_context context, int i, struct testcase *c)
 136 {
 137     krb5_error_code ret;
 138     krb5_keyblock key;
 139     krb5_principal client, server;
 140     Ticket ticket;
 141     AlgorithmIdentifier ai;
 142     size_t size;
 143
 144     memset(&ticket, 0, sizeof(&ticket));
 145
 146     ai.algorithm = *c->oid;
 147     ai.parameters = NULL;
 148
 149     ret = decode_Ticket(c->ticket.data, c->ticket.length, &ticket, &size);
 150     if (ret)
 151         krb5_errx(context, 1, "decode ticket: %d", ret);
 152
 153     ret = krb5_parse_name(context, c->client, &client);
 154     if (ret)
 155         krb5_err(context, 1, ret, "parse_name: %s", c->client);
 156     ret = krb5_parse_name(context, c->server, &server);
 157     if (ret)
 158         krb5_err(context, 1, ret, "parse_name: %s", c->server);
 159
 160     if (verbose_flag) {
 161         char *str;
 162         hex_encode(c->Z.data, c->Z.length, &str);
 163         printf("Z: %s\n", str);
 164         free(str);
 165         printf("client: %s\n", c->client);
 166         printf("server: %s\n", c->server);
 167         printf("enctype: %d\n", (int)c->enctype);
 168         hex_encode(c->as_req.data, c->as_req.length, &str);
 169         printf("as-req: %s\n", str);
 170         free(str);
 171         hex_encode(c->pk_as_rep.data, c->pk_as_rep.length, &str);
 172         printf("pk-as-rep: %s\n", str);
 173         free(str);
 174         hex_encode(c->ticket.data, c->ticket.length, &str);
 175         printf("ticket: %s\n", str);
 176         free(str);
 177     }
 178
 179     ret = _krb5_pk_kdf(context,
 180                        &ai,
 181                        c->Z.data,
 182                        c->Z.length,
 183                        client,
 184                        server,
 185                        c->enctype,
 186                        &c->as_req,
 187                        &c->pk_as_rep,
 188                        &ticket,
 189                        &key);
 190     krb5_free_principal(context, client);
 191     krb5_free_principal(context, server);
 192     if (ret)
 193         krb5_err(context, 1, ret, "_krb5_pk_kdf: %d", i);
 194
 195     if (verbose_flag) {
 196         char *str;
 197         hex_encode(key.keyvalue.data, key.keyvalue.length, &str);
 198         printf("key: %s\n", str);
 199         free(str);
 200     }
 201
 202     if (key.keyvalue.length != c->key.length ||
 203         memcmp(key.keyvalue.data, c->key.data, c->key.length) != 0)
 204         krb5_errx(context, 1, "resulting key wrong: %d", i);
 205
 206     krb5_free_keyblock_contents(context, &key);
 207     free_Ticket(&ticket);
 208 }
 209
 210
 211
 212
 213 static int version_flag = 0;
 214 static int help_flag    = 0;
 215
 216 static struct getargs args[] = {
 217     {"verbose", 0,      arg_flag,       &verbose_flag,
 218      "verbose output", NULL },
 219     {"version", 0,      arg_flag,       &version_flag,
 220      "print version", NULL },
 221     {"help",    0,      arg_flag,       &help_flag,
 222      NULL, NULL }
 223 };
 224
 225 static void
 226 usage (int ret)
 227 {
 228     arg_printusage (args,
 229                     sizeof(args)/sizeof(*args),
 230                     NULL,
 231                     "");
 232     exit (ret);
 233 }
 234
 235
 236 int
 237 main(int argc, char **argv)
 238 {
 239     krb5_context context;
 240     krb5_error_code ret;
 241     int i, optidx = 0;
 242
 243     setprogname(argv[0]);
 244
 245     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 246         usage(1);
 247
 248     if (help_flag)
 249         usage (0);
 250
 251     if(version_flag){
 252         print_version(NULL);
 253         exit(0);
 254     }
 255
 256     argc -= optidx;
 257     argv += optidx;
 258
 259 #ifdef MAKETICKET
 260     fooTicket();
 261 #endif
 262
 263     ret = krb5_init_context(&context);
 264     if (ret)
 265         errx (1, "krb5_init_context failed: %d", ret);
 266
 267     tests[0].oid = &asn1_oid_id_pkinit_kdf_ah_sha1;
 268
 269     for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
 270         test_dh2key(context, i, &tests[i]);
 271
 272     krb5_free_context(context);
 273
 274     return 0;
 275 }