lib/krb5/aes-test.c

   1 /*
   2  * Copyright (c) 2003 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 <hex.h>
  35 #include <err.h>
  36 #include <assert.h>
  37
  38 #ifdef HAVE_OPENSSL
  39 #include <openssl/evp.h>
  40 #endif
  41
  42 static int verbose = 0;
  43
  44 static void
  45 hex_dump_data(const void *data, size_t length)
  46 {
  47     char *p;
  48
  49     hex_encode(data, length, &p);
  50     printf("%s\n", p);
  51     free(p);
  52 }
  53
  54 struct {
  55     char *password;
  56     char *salt;
  57     int saltlen;
  58     int iterations;
  59     krb5_enctype enctype;
  60     size_t keylen;
  61     char *pbkdf2;
  62     char *key;
  63 } keys[] = {
  64     {
  65         "password", "ATHENA.MIT.EDUraeburn", -1,
  66         1,
  67         ETYPE_AES128_CTS_HMAC_SHA1_96, 16,
  68         "\xcd\xed\xb5\x28\x1b\xb2\xf8\x01\x56\x5a\x11\x22\xb2\x56\x35\x15",
  69         "\x42\x26\x3c\x6e\x89\xf4\xfc\x28\xb8\xdf\x68\xee\x09\x79\x9f\x15"
  70     },
  71     {
  72         "password", "ATHENA.MIT.EDUraeburn", -1,
  73         1,
  74         ETYPE_AES256_CTS_HMAC_SHA1_96, 32,
  75         "\xcd\xed\xb5\x28\x1b\xb2\xf8\x01\x56\x5a\x11\x22\xb2\x56\x35\x15"
  76         "\x0a\xd1\xf7\xa0\x4b\xb9\xf3\xa3\x33\xec\xc0\xe2\xe1\xf7\x08\x37",
  77         "\xfe\x69\x7b\x52\xbc\x0d\x3c\xe1\x44\x32\xba\x03\x6a\x92\xe6\x5b"
  78         "\xbb\x52\x28\x09\x90\xa2\xfa\x27\x88\x39\x98\xd7\x2a\xf3\x01\x61"
  79     },
  80     {
  81         "password", "ATHENA.MIT.EDUraeburn", -1,
  82         2,
  83         ETYPE_AES128_CTS_HMAC_SHA1_96, 16,
  84         "\x01\xdb\xee\x7f\x4a\x9e\x24\x3e\x98\x8b\x62\xc7\x3c\xda\x93\x5d",
  85         "\xc6\x51\xbf\x29\xe2\x30\x0a\xc2\x7f\xa4\x69\xd6\x93\xbd\xda\x13"
  86     },
  87     {
  88         "password", "ATHENA.MIT.EDUraeburn", -1,
  89         2,
  90         ETYPE_AES256_CTS_HMAC_SHA1_96, 32,
  91         "\x01\xdb\xee\x7f\x4a\x9e\x24\x3e\x98\x8b\x62\xc7\x3c\xda\x93\x5d"
  92         "\xa0\x53\x78\xb9\x32\x44\xec\x8f\x48\xa9\x9e\x61\xad\x79\x9d\x86",
  93         "\xa2\xe1\x6d\x16\xb3\x60\x69\xc1\x35\xd5\xe9\xd2\xe2\x5f\x89\x61"
  94         "\x02\x68\x56\x18\xb9\x59\x14\xb4\x67\xc6\x76\x22\x22\x58\x24\xff"
  95     },
  96     {
  97         "password", "ATHENA.MIT.EDUraeburn", -1,
  98         1200,
  99         ETYPE_AES128_CTS_HMAC_SHA1_96, 16,
 100         "\x5c\x08\xeb\x61\xfd\xf7\x1e\x4e\x4e\xc3\xcf\x6b\xa1\xf5\x51\x2b",
 101         "\x4c\x01\xcd\x46\xd6\x32\xd0\x1e\x6d\xbe\x23\x0a\x01\xed\x64\x2a"
 102     },
 103     {
 104         "password", "ATHENA.MIT.EDUraeburn", -1,
 105         1200,
 106         ETYPE_AES256_CTS_HMAC_SHA1_96, 32,
 107         "\x5c\x08\xeb\x61\xfd\xf7\x1e\x4e\x4e\xc3\xcf\x6b\xa1\xf5\x51\x2b"
 108         "\xa7\xe5\x2d\xdb\xc5\xe5\x14\x2f\x70\x8a\x31\xe2\xe6\x2b\x1e\x13",
 109         "\x55\xa6\xac\x74\x0a\xd1\x7b\x48\x46\x94\x10\x51\xe1\xe8\xb0\xa7"
 110         "\x54\x8d\x93\xb0\xab\x30\xa8\xbc\x3f\xf1\x62\x80\x38\x2b\x8c\x2a"
 111     },
 112     {
 113         "password", "\x12\x34\x56\x78\x78\x56\x34\x12", 8,
 114         5,
 115         ETYPE_AES128_CTS_HMAC_SHA1_96, 16,
 116         "\xd1\xda\xa7\x86\x15\xf2\x87\xe6\xa1\xc8\xb1\x20\xd7\x06\x2a\x49",
 117         "\xe9\xb2\x3d\x52\x27\x37\x47\xdd\x5c\x35\xcb\x55\xbe\x61\x9d\x8e"
 118     },
 119     {
 120         "password", "\x12\x34\x56\x78\x78\x56\x34\x12", 8,
 121         5,
 122         ETYPE_AES256_CTS_HMAC_SHA1_96, 32,
 123         "\xd1\xda\xa7\x86\x15\xf2\x87\xe6\xa1\xc8\xb1\x20\xd7\x06\x2a\x49"
 124         "\x3f\x98\xd2\x03\xe6\xbe\x49\xa6\xad\xf4\xfa\x57\x4b\x6e\x64\xee",
 125         "\x97\xa4\xe7\x86\xbe\x20\xd8\x1a\x38\x2d\x5e\xbc\x96\xd5\x90\x9c"
 126         "\xab\xcd\xad\xc8\x7c\xa4\x8f\x57\x45\x04\x15\x9f\x16\xc3\x6e\x31"
 127     },
 128     {
 129         "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 130         "pass phrase equals block size", -1,
 131         1200,
 132         ETYPE_AES128_CTS_HMAC_SHA1_96, 16,
 133         "\x13\x9c\x30\xc0\x96\x6b\xc3\x2b\xa5\x5f\xdb\xf2\x12\x53\x0a\xc9",
 134         "\x59\xd1\xbb\x78\x9a\x82\x8b\x1a\xa5\x4e\xf9\xc2\x88\x3f\x69\xed"
 135     },
 136     {
 137         "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 138         "pass phrase equals block size", -1,
 139         1200,
 140         ETYPE_AES256_CTS_HMAC_SHA1_96, 32,
 141         "\x13\x9c\x30\xc0\x96\x6b\xc3\x2b\xa5\x5f\xdb\xf2\x12\x53\x0a\xc9"
 142         "\xc5\xec\x59\xf1\xa4\x52\xf5\xcc\x9a\xd9\x40\xfe\xa0\x59\x8e\xd1",
 143         "\x89\xad\xee\x36\x08\xdb\x8b\xc7\x1f\x1b\xfb\xfe\x45\x94\x86\xb0"
 144         "\x56\x18\xb7\x0c\xba\xe2\x20\x92\x53\x4e\x56\xc5\x53\xba\x4b\x34"
 145     },
 146     {
 147         "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 148         "pass phrase exceeds block size", -1,
 149         1200,
 150         ETYPE_AES128_CTS_HMAC_SHA1_96, 16,
 151         "\x9c\xca\xd6\xd4\x68\x77\x0c\xd5\x1b\x10\xe6\xa6\x87\x21\xbe\x61",
 152         "\xcb\x80\x05\xdc\x5f\x90\x17\x9a\x7f\x02\x10\x4c\x00\x18\x75\x1d"
 153     },
 154     {
 155         "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 156         "pass phrase exceeds block size", -1,
 157         1200,
 158         ETYPE_AES256_CTS_HMAC_SHA1_96, 32,
 159         "\x9c\xca\xd6\xd4\x68\x77\x0c\xd5\x1b\x10\xe6\xa6\x87\x21\xbe\x61"
 160         "\x1a\x8b\x4d\x28\x26\x01\xdb\x3b\x36\xbe\x92\x46\x91\x5e\xc8\x2a",
 161         "\xd7\x8c\x5c\x9c\xb8\x72\xa8\xc9\xda\xd4\x69\x7f\x0b\xb5\xb2\xd2"
 162         "\x14\x96\xc8\x2b\xeb\x2c\xae\xda\x21\x12\xfc\xee\xa0\x57\x40\x1b"
 163
 164     },
 165     {
 166         "\xf0\x9d\x84\x9e" /* g-clef */, "EXAMPLE.COMpianist", -1,
 167         50,
 168         ETYPE_AES128_CTS_HMAC_SHA1_96, 16,
 169         "\x6b\x9c\xf2\x6d\x45\x45\x5a\x43\xa5\xb8\xbb\x27\x6a\x40\x3b\x39",
 170         "\xf1\x49\xc1\xf2\xe1\x54\xa7\x34\x52\xd4\x3e\x7f\xe6\x2a\x56\xe5"
 171     },
 172     {
 173         "\xf0\x9d\x84\x9e" /* g-clef */, "EXAMPLE.COMpianist", -1,
 174         50,
 175         ETYPE_AES256_CTS_HMAC_SHA1_96, 32,
 176         "\x6b\x9c\xf2\x6d\x45\x45\x5a\x43\xa5\xb8\xbb\x27\x6a\x40\x3b\x39"
 177         "\xe7\xfe\x37\xa0\xc4\x1e\x02\xc2\x81\xff\x30\x69\xe1\xe9\x4f\x52",
 178         "\x4b\x6d\x98\x39\xf8\x44\x06\xdf\x1f\x09\xcc\x16\x6d\xb4\xb8\x3c"
 179         "\x57\x18\x48\xb7\x84\xa3\xd6\xbd\xc3\x46\x58\x9a\x3e\x39\x3f\x9e"
 180     },
 181     {
 182         "foo", "", -1,
 183         0,
 184         ETYPE_ARCFOUR_HMAC_MD5, 16,
 185         NULL,
 186         "\xac\x8e\x65\x7f\x83\xdf\x82\xbe\xea\x5d\x43\xbd\xaf\x78\x00\xcc"
 187     },
 188     {
 189         "test", "", -1,
 190         0,
 191         ETYPE_ARCFOUR_HMAC_MD5, 16,
 192         NULL,
 193         "\x0c\xb6\x94\x88\x05\xf7\x97\xbf\x2a\x82\x80\x79\x73\xb8\x95\x37"
 194     }
 195 };
 196
 197 static int
 198 string_to_key_test(krb5_context context)
 199 {
 200     krb5_data password, opaque;
 201     krb5_error_code ret;
 202     krb5_salt salt;
 203     int i, val = 0;
 204     char iter[4];
 205
 206     for (i = 0; i < sizeof(keys)/sizeof(keys[0]); i++) {
 207
 208         password.data = keys[i].password;
 209         password.length = strlen(password.data);
 210
 211         salt.salttype = KRB5_PW_SALT;
 212         salt.saltvalue.data = keys[i].salt;
 213         if (keys[i].saltlen == -1)
 214             salt.saltvalue.length = strlen(salt.saltvalue.data);
 215         else
 216             salt.saltvalue.length = keys[i].saltlen;
 217
 218         opaque.data = iter;
 219         opaque.length = sizeof(iter);
 220         _krb5_put_int(iter, keys[i].iterations, 4);
 221
 222         if (keys[i].pbkdf2) {
 223             unsigned char keyout[32];
 224
 225             if (keys[i].keylen > sizeof(keyout))
 226                 abort();
 227
 228             PKCS5_PBKDF2_HMAC_SHA1(password.data, password.length,
 229                                    salt.saltvalue.data, salt.saltvalue.length,
 230                                    keys[i].iterations,
 231                                    keys[i].keylen, keyout);
 232
 233             if (memcmp(keyout, keys[i].pbkdf2, keys[i].keylen) != 0) {
 234                 krb5_warnx(context, "%d: pbkdf2", i);
 235                 val = 1;
 236                 continue;
 237             }
 238
 239             if (verbose) {
 240                 printf("PBKDF2:\n");
 241                 hex_dump_data(keyout, keys[i].keylen);
 242             }
 243         }
 244
 245         {
 246             krb5_keyblock key;
 247
 248             ret = krb5_string_to_key_data_salt_opaque (context,
 249                                                        keys[i].enctype,
 250                                                        password,
 251                                                        salt,
 252                                                        opaque,
 253                                                        &key);
 254             if (ret) {
 255                 krb5_warn(context, ret, "%d: string_to_key_data_salt_opaque",
 256                           i);
 257                 val = 1;
 258                 continue;
 259             }
 260
 261             if (key.keyvalue.length != keys[i].keylen) {
 262                 krb5_warnx(context, "%d: key wrong length (%lu/%lu)",
 263                            i, (unsigned long)key.keyvalue.length,
 264                            (unsigned long)keys[i].keylen);
 265                 val = 1;
 266                 continue;
 267             }
 268
 269             if (memcmp(key.keyvalue.data, keys[i].key, keys[i].keylen) != 0) {
 270                 krb5_warnx(context, "%d: key wrong", i);
 271                 val = 1;
 272                 continue;
 273             }
 274
 275             if (verbose) {
 276                 printf("key:\n");
 277                 hex_dump_data(key.keyvalue.data, key.keyvalue.length);
 278             }
 279             krb5_free_keyblock_contents(context, &key);
 280         }
 281     }
 282     return val;
 283 }
 284
 285 static int
 286 krb_enc(krb5_context context,
 287         krb5_crypto crypto,
 288         unsigned usage,
 289         krb5_data *cipher,
 290         krb5_data *clear)
 291 {
 292     krb5_data decrypt;
 293     krb5_error_code ret;
 294
 295     krb5_data_zero(&decrypt);
 296
 297     ret = krb5_decrypt(context,
 298                        crypto,
 299                        usage,
 300                        cipher->data,
 301                        cipher->length,
 302                        &decrypt);
 303
 304     if (ret) {
 305         krb5_warn(context, ret, "krb5_decrypt");
 306         return ret;
 307     }
 308
 309     if (decrypt.length != clear->length ||
 310         memcmp(decrypt.data, clear->data, decrypt.length) != 0) {
 311         krb5_warnx(context, "clear text not same");
 312         return EINVAL;
 313     }
 314
 315     krb5_data_free(&decrypt);
 316
 317     return 0;
 318 }
 319
 320 static int
 321 krb_enc_iov2(krb5_context context,
 322              krb5_crypto crypto,
 323              unsigned usage,
 324              size_t cipher_len,
 325              krb5_data *clear)
 326 {
 327     krb5_crypto_iov iov[4];
 328     krb5_data decrypt;
 329     int ret;
 330     char *p, *q;
 331     size_t len, i;
 332
 333     p = clear->data;
 334     len = clear->length;
 335
 336     iov[0].flags = KRB5_CRYPTO_TYPE_HEADER;
 337     krb5_crypto_length(context, crypto, iov[0].flags, &iov[0].data.length);
 338     iov[0].data.data = emalloc(iov[0].data.length);
 339
 340     iov[1].flags = KRB5_CRYPTO_TYPE_DATA;
 341     iov[1].data.length = len;
 342     iov[1].data.data = emalloc(iov[1].data.length);
 343     memcpy(iov[1].data.data, p, iov[1].data.length);
 344
 345     /* padding buffer */
 346     iov[2].flags = KRB5_CRYPTO_TYPE_PADDING;
 347     krb5_crypto_length(context, crypto, KRB5_CRYPTO_TYPE_PADDING, &iov[2].data.length);
 348     iov[2].data.data = emalloc(iov[2].data.length);
 349
 350     iov[3].flags = KRB5_CRYPTO_TYPE_TRAILER;
 351     krb5_crypto_length(context, crypto, iov[3].flags, &iov[3].data.length);
 352     iov[3].data.data = emalloc(iov[3].data.length);
 353
 354     ret = krb5_encrypt_iov_ivec(context, crypto, usage,
 355                                 iov, sizeof(iov)/sizeof(iov[0]), NULL);
 356     if (ret)
 357         errx(1, "encrypt iov failed: %d", ret);
 358
 359     /* check len */
 360     for (i = 0, len = 0; i < sizeof(iov)/sizeof(iov[0]); i++)
 361         len += iov[i].data.length;
 362     if (len != cipher_len)
 363         errx(1, "cipher len wrong");
 364
 365     /*
 366      * Plain decrypt
 367      */
 368
 369     p = q = emalloc(len);
 370     for (i = 0; i < sizeof(iov)/sizeof(iov[0]); i++) {
 371         memcpy(q, iov[i].data.data, iov[i].data.length);
 372         q += iov[i].data.length;
 373     }
 374
 375     ret = krb5_decrypt(context, crypto, usage, p, len, &decrypt);
 376     if (ret)
 377         krb5_err(context, 1, ret, "krb5_decrypt");
 378     else
 379         krb5_data_free(&decrypt);
 380
 381     free(p);
 382
 383     /*
 384      * Now decrypt use iov
 385      */
 386
 387     /* padding turn into data */
 388     p = emalloc(iov[1].data.length + iov[2].data.length);
 389
 390     memcpy(p,                      iov[1].data.data, iov[1].data.length);
 391     memcpy(p + iov[1].data.length, iov[2].data.data, iov[2].data.length);
 392
 393     free(iov[1].data.data);
 394     free(iov[2].data.data);
 395
 396     iov[1].data.data = p;
 397     iov[1].data.length += iov[2].data.length;
 398
 399     iov[2].flags = KRB5_CRYPTO_TYPE_EMPTY;
 400     iov[2].data.length = 0;
 401
 402     ret = krb5_decrypt_iov_ivec(context, crypto, usage,
 403                                 iov, sizeof(iov)/sizeof(iov[0]), NULL);
 404     if (ret)
 405         krb5_err(context, 1, ret, "decrypt iov failed: %d", ret);
 406
 407     if (clear->length != iov[1].data.length)
 408         errx(1, "length incorrect");
 409
 410     p = clear->data;
 411     if (memcmp(iov[1].data.data, p, iov[1].data.length) != 0)
 412         errx(1, "iov[1] incorrect");
 413
 414     return 0;
 415 }
 416
 417
 418 static int
 419 krb_enc_iov(krb5_context context,
 420             krb5_crypto crypto,
 421             unsigned usage,
 422             krb5_data *cipher,
 423             krb5_data *clear)
 424 {
 425     krb5_crypto_iov iov[3];
 426     int ret;
 427     char *p;
 428     size_t len;
 429
 430     p = cipher->data;
 431     len = cipher->length;
 432
 433     iov[0].flags = KRB5_CRYPTO_TYPE_HEADER;
 434     krb5_crypto_length(context, crypto, iov[0].flags, &iov[0].data.length);
 435     iov[0].data.data = emalloc(iov[0].data.length);
 436     memcpy(iov[0].data.data, p, iov[0].data.length);
 437     p += iov[0].data.length;
 438     len -= iov[0].data.length;
 439
 440     iov[1].flags = KRB5_CRYPTO_TYPE_TRAILER;
 441     krb5_crypto_length(context, crypto, iov[1].flags, &iov[1].data.length);
 442     iov[1].data.data = emalloc(iov[1].data.length);
 443     memcpy(iov[1].data.data, p + len - iov[1].data.length, iov[1].data.length);
 444     len -= iov[1].data.length;
 445
 446     iov[2].flags = KRB5_CRYPTO_TYPE_DATA;
 447     iov[2].data.length = len;
 448     iov[2].data.data = emalloc(len);
 449     memcpy(iov[2].data.data, p, len);
 450
 451     ret = krb5_decrypt_iov_ivec(context, crypto, usage,
 452                                 iov, sizeof(iov)/sizeof(iov[0]), NULL);
 453     if (ret)
 454         krb5_err(context, 1, ret, "krb_enc_iov decrypt iov failed: %d", ret);
 455
 456     if (clear->length != iov[2].data.length)
 457         errx(1, "length incorrect");
 458
 459     p = clear->data;
 460     if (memcmp(iov[2].data.data, p, iov[2].data.length) != 0)
 461         errx(1, "iov[2] incorrect");
 462
 463     return 0;
 464 }
 465
 466 static int
 467 krb_checksum_iov(krb5_context context,
 468                  krb5_crypto crypto,
 469                  unsigned usage,
 470                  krb5_data *plain)
 471 {
 472     krb5_crypto_iov iov[4];
 473     int ret;
 474     char *p;
 475     size_t len;
 476
 477     p = plain->data;
 478     len = plain->length;
 479
 480     iov[0].flags = KRB5_CRYPTO_TYPE_CHECKSUM;
 481     krb5_crypto_length(context, crypto, iov[0].flags, &iov[0].data.length);
 482     iov[0].data.data = emalloc(iov[0].data.length);
 483
 484     iov[1].flags = KRB5_CRYPTO_TYPE_DATA;
 485     iov[1].data.length = len;
 486     iov[1].data.data = p;
 487
 488     iov[2].flags = KRB5_CRYPTO_TYPE_TRAILER;
 489     krb5_crypto_length(context, crypto, iov[0].flags, &iov[2].data.length);
 490     iov[2].data.data = malloc(iov[2].data.length);
 491
 492     ret = krb5_create_checksum_iov(context, crypto, usage,
 493                                    iov, sizeof(iov)/sizeof(iov[0]), NULL);
 494     if (ret)
 495         krb5_err(context, 1, ret, "krb5_create_checksum_iov failed");
 496
 497     ret = krb5_verify_checksum_iov(context, crypto, usage, iov, sizeof(iov)/sizeof(iov[0]), NULL);
 498     if (ret)
 499         krb5_err(context, 1, ret, "krb5_verify_checksum_iov");
 500
 501     return 0;
 502 }
 503
 504
 505 static int
 506 krb_enc_mit(krb5_context context,
 507             krb5_enctype enctype,
 508             krb5_keyblock *key,
 509             unsigned usage,
 510             krb5_data *cipher,
 511             krb5_data *clear)
 512 {
 513 #ifndef HEIMDAL_SMALLER
 514     krb5_error_code ret;
 515     krb5_enc_data e;
 516     krb5_data decrypt;
 517     size_t len;
 518
 519     e.kvno = 0;
 520     e.enctype = enctype;
 521     e.ciphertext = *cipher;
 522
 523     ret = krb5_c_decrypt(context, *key, usage, NULL, &e, &decrypt);
 524     if (ret)
 525         return ret;
 526
 527     if (decrypt.length != clear->length ||
 528         memcmp(decrypt.data, clear->data, decrypt.length) != 0) {
 529         krb5_warnx(context, "clear text not same");
 530         return EINVAL;
 531     }
 532
 533     krb5_data_free(&decrypt);
 534
 535     ret = krb5_c_encrypt_length(context, enctype, clear->length, &len);
 536     if (ret)
 537         return ret;
 538
 539     if (len != cipher->length) {
 540         krb5_warnx(context, "c_encrypt_length wrong %lu != %lu",
 541                    (unsigned long)len, (unsigned long)cipher->length);
 542         return EINVAL;
 543     }
 544 #endif /* HEIMDAL_SMALLER */
 545     return 0;
 546 }
 547
 548
 549 struct {
 550     krb5_enctype enctype;
 551     unsigned usage;
 552     size_t keylen;
 553     void *key;
 554     size_t elen;
 555     void* edata;
 556     size_t plen;
 557     void *pdata;
 558 } krbencs[] =  {
 559     {
 560         ETYPE_AES256_CTS_HMAC_SHA1_96,
 561         7,
 562         32,
 563         "\x47\x75\x69\x64\x65\x6c\x69\x6e\x65\x73\x20\x74\x6f\x20\x41\x75"
 564         "\x74\x68\x6f\x72\x73\x20\x6f\x66\x20\x49\x6e\x74\x65\x72\x6e\x65",
 565         44,
 566         "\xcf\x79\x8f\x0d\x76\xf3\xe0\xbe\x8e\x66\x94\x70\xfa\xcc\x9e\x91"
 567         "\xa9\xec\x1c\x5c\x21\xfb\x6e\xef\x1a\x7a\xc8\xc1\xcc\x5a\x95\x24"
 568         "\x6f\x9f\xf4\xd5\xbe\x5d\x59\x97\x44\xd8\x47\xcd",
 569         16,
 570         "\x54\x68\x69\x73\x20\x69\x73\x20\x61\x20\x74\x65\x73\x74\x2e\x0a"
 571     }
 572 };
 573
 574
 575 static int
 576 krb_enc_test(krb5_context context)
 577 {
 578     krb5_error_code ret;
 579     krb5_crypto crypto;
 580     krb5_keyblock kb;
 581     krb5_data cipher, plain;
 582     int i;
 583
 584     for (i = 0; i < sizeof(krbencs)/sizeof(krbencs[0]); i++) {
 585
 586         kb.keytype = krbencs[i].enctype;
 587         kb.keyvalue.length = krbencs[i].keylen;
 588         kb.keyvalue.data = krbencs[i].key;
 589
 590         ret = krb5_crypto_init(context, &kb, krbencs[i].enctype, &crypto);
 591
 592         cipher.length = krbencs[i].elen;
 593         cipher.data = krbencs[i].edata;
 594         plain.length = krbencs[i].plen;
 595         plain.data = krbencs[i].pdata;
 596
 597         ret = krb_enc(context, crypto, krbencs[i].usage, &cipher, &plain);
 598
 599         if (ret)
 600             errx(1, "krb_enc failed with %d for test %d", ret, i);
 601
 602         ret = krb_enc_iov(context, crypto, krbencs[i].usage, &cipher, &plain);
 603         if (ret)
 604             errx(1, "krb_enc_iov failed with %d for test %d", ret, i);
 605
 606         ret = krb_enc_iov2(context, crypto, krbencs[i].usage,
 607                            cipher.length, &plain);
 608         if (ret)
 609             errx(1, "krb_enc_iov2 failed with %d for test %d", ret, i);
 610
 611         ret = krb_checksum_iov(context, crypto, krbencs[i].usage, &plain);
 612         if (ret)
 613             errx(1, "krb_checksum_iov failed with %d for test %d", ret, i);
 614
 615         krb5_crypto_destroy(context, crypto);
 616
 617         ret = krb_enc_mit(context, krbencs[i].enctype, &kb,
 618                           krbencs[i].usage, &cipher, &plain);
 619         if (ret)
 620             errx(1, "krb_enc_mit failed with %d for test %d", ret, i);
 621     }
 622
 623     return 0;
 624 }
 625
 626 static int
 627 iov_test(krb5_context context)
 628 {
 629     krb5_enctype enctype = ENCTYPE_AES256_CTS_HMAC_SHA1_96;
 630     krb5_error_code ret;
 631     krb5_crypto crypto;
 632     krb5_keyblock key;
 633     krb5_data signonly, in, in2;
 634     krb5_crypto_iov iov[6];
 635     size_t len, i;
 636     unsigned char *base, *p;
 637
 638     ret = krb5_generate_random_keyblock(context, enctype, &key);
 639     if (ret)
 640         krb5_err(context, 1, ret, "krb5_generate_random_keyblock");
 641
 642     ret = krb5_crypto_init(context, &key, 0, &crypto);
 643     if (ret)
 644         krb5_err(context, 1, ret, "krb5_crypto_init");
 645
 646
 647     ret = krb5_crypto_length(context, crypto, KRB5_CRYPTO_TYPE_HEADER, &len);
 648     if (ret)
 649         krb5_err(context, 1, ret, "krb5_crypto_length");
 650
 651     signonly.data = "This should be signed";
 652     signonly.length = strlen(signonly.data);
 653     in.data = "inputdata";
 654     in.length = strlen(in.data);
 655
 656     in2.data = "INPUTDATA";
 657     in2.length = strlen(in2.data);
 658
 659
 660     memset(iov, 0, sizeof(iov));
 661
 662     iov[0].flags = KRB5_CRYPTO_TYPE_HEADER;
 663     iov[1].flags = KRB5_CRYPTO_TYPE_DATA;
 664     iov[1].data = in;
 665     iov[2].flags = KRB5_CRYPTO_TYPE_SIGN_ONLY;
 666     iov[2].data = signonly;
 667     iov[3].flags = KRB5_CRYPTO_TYPE_EMPTY;
 668     iov[4].flags = KRB5_CRYPTO_TYPE_PADDING;
 669     iov[5].flags = KRB5_CRYPTO_TYPE_TRAILER;
 670
 671     ret = krb5_crypto_length_iov(context, crypto, iov,
 672                                  sizeof(iov)/sizeof(iov[0]));
 673     if (ret)
 674         krb5_err(context, 1, ret, "krb5_crypto_length_iov");
 675
 676     for (len = 0, i = 0; i < sizeof(iov)/sizeof(iov[0]); i++) {
 677         if (iov[i].flags == KRB5_CRYPTO_TYPE_SIGN_ONLY)
 678             continue;
 679         len += iov[i].data.length;
 680     }
 681
 682     base = emalloc(len);
 683
 684     /*
 685      * Allocate data for the fields
 686      */
 687
 688     for (p = base, i = 0; i < sizeof(iov)/sizeof(iov[0]); i++) {
 689         if (iov[i].flags == KRB5_CRYPTO_TYPE_SIGN_ONLY)
 690             continue;;
 691         iov[i].data.data = p;
 692         p += iov[i].data.length;
 693     }
 694     assert(iov[1].data.length == in.length);
 695     memcpy(iov[1].data.data, in.data, iov[1].data.length);
 696
 697     /*
 698      * Encrypt
 699      */
 700
 701     ret = krb5_encrypt_iov_ivec(context, crypto, 7, iov,
 702                                 sizeof(iov)/sizeof(iov[0]), NULL);
 703     if (ret)
 704         krb5_err(context, 1, ret, "krb5_encrypt_iov_ivec");
 705
 706     /*
 707      * Decrypt
 708      */
 709
 710     ret = krb5_decrypt_iov_ivec(context, crypto, 7,
 711                                 iov, sizeof(iov)/sizeof(iov[0]), NULL);
 712     if (ret)
 713         krb5_err(context, 1, ret, "krb5_decrypt_iov_ivec");
 714
 715     /*
 716      * Verify data
 717      */
 718
 719     if (krb5_data_cmp(&iov[1].data, &in) != 0)
 720         krb5_errx(context, 1, "decrypted data not same");
 721
 722     /*
 723      * Free memory
 724      */
 725
 726     free(base);
 727
 728     /* Set up for second try */
 729
 730     iov[3].flags = KRB5_CRYPTO_TYPE_DATA;
 731     iov[3].data = in;
 732
 733     ret = krb5_crypto_length_iov(context, crypto,
 734                                  iov, sizeof(iov)/sizeof(iov[0]));
 735     if (ret)
 736         krb5_err(context, 1, ret, "krb5_crypto_length_iov");
 737
 738     for (len = 0, i = 0; i < sizeof(iov)/sizeof(iov[0]); i++) {
 739         if (iov[i].flags == KRB5_CRYPTO_TYPE_SIGN_ONLY)
 740             continue;
 741         len += iov[i].data.length;
 742     }
 743
 744     base = emalloc(len);
 745
 746     /*
 747      * Allocate data for the fields
 748      */
 749
 750     for (p = base, i = 0; i < sizeof(iov)/sizeof(iov[0]); i++) {
 751         if (iov[i].flags == KRB5_CRYPTO_TYPE_SIGN_ONLY)
 752             continue;;
 753         iov[i].data.data = p;
 754         p += iov[i].data.length;
 755     }
 756     assert(iov[1].data.length == in.length);
 757     memcpy(iov[1].data.data, in.data, iov[1].data.length);
 758
 759     assert(iov[3].data.length == in2.length);
 760     memcpy(iov[3].data.data, in2.data, iov[3].data.length);
 761
 762
 763
 764     /*
 765      * Encrypt
 766      */
 767
 768     ret = krb5_encrypt_iov_ivec(context, crypto, 7,
 769                                 iov, sizeof(iov)/sizeof(iov[0]), NULL);
 770     if (ret)
 771         krb5_err(context, 1, ret, "krb5_encrypt_iov_ivec");
 772
 773     /*
 774      * Decrypt
 775      */
 776
 777     ret = krb5_decrypt_iov_ivec(context, crypto, 7,
 778                                 iov, sizeof(iov)/sizeof(iov[0]), NULL);
 779     if (ret)
 780         krb5_err(context, 1, ret, "krb5_decrypt_iov_ivec");
 781
 782     /*
 783      * Verify data
 784      */
 785
 786     if (krb5_data_cmp(&iov[1].data, &in) != 0)
 787         krb5_errx(context, 1, "decrypted data 2.1 not same");
 788
 789     if (krb5_data_cmp(&iov[3].data, &in2) != 0)
 790         krb5_errx(context, 1, "decrypted data 2.2 not same");
 791
 792     /*
 793      * Free memory
 794      */
 795
 796     free(base);
 797
 798     krb5_crypto_destroy(context, crypto);
 799
 800     return 0;
 801 }
 802
 803
 804
 805 static int
 806 random_to_key(krb5_context context)
 807 {
 808     krb5_error_code ret;
 809     krb5_keyblock key;
 810
 811     ret = krb5_random_to_key(context,
 812                              ETYPE_DES3_CBC_SHA1,
 813                              "\x21\x39\x04\x58\x6A\xBD\x7F"
 814                              "\x21\x39\x04\x58\x6A\xBD\x7F"
 815                              "\x21\x39\x04\x58\x6A\xBD\x7F",
 816                              21,
 817                              &key);
 818     if (ret){
 819         krb5_warn(context, ret, "random_to_key");
 820         return 1;
 821     }
 822     if (key.keyvalue.length != 24)
 823         return 1;
 824
 825     if (memcmp(key.keyvalue.data,
 826                "\x20\x38\x04\x58\x6b\xbc\x7f\xc7"
 827                "\x20\x38\x04\x58\x6b\xbc\x7f\xc7"
 828                "\x20\x38\x04\x58\x6b\xbc\x7f\xc7",
 829                24) != 0)
 830         return 1;
 831
 832     krb5_free_keyblock_contents(context, &key);
 833
 834     return 0;
 835 }
 836
 837 int
 838 main(int argc, char **argv)
 839 {
 840     krb5_error_code ret;
 841     krb5_context context;
 842     int val = 0;
 843
 844     ret = krb5_init_context (&context);
 845     if (ret)
 846         errx (1, "krb5_init_context failed: %d", ret);
 847
 848     val |= string_to_key_test(context);
 849
 850     val |= krb_enc_test(context);
 851     val |= random_to_key(context);
 852     val |= iov_test(context);
 853
 854     if (verbose && val == 0)
 855         printf("all ok\n");
 856     if (val)
 857         printf("tests failed\n");
 858
 859     krb5_free_context(context);
 860
 861     return val;
 862 }