testutils.c 31.9 KB
Newer Older
Niels Möller's avatar
Niels Möller committed
1
/* testutils.c */
Niels Möller's avatar
Niels Möller committed
2 3 4

#include "testutils.h"

5
#include "cbc.h"
6
#include "ctr.h"
Niels Möller's avatar
Niels Möller committed
7
#include "knuth-lfib.h"
8
#include "macros.h"
9
#include "nettle-internal.h"
10

Niels Möller's avatar
Niels Möller committed
11
#include <assert.h>
Niels Möller's avatar
Niels Möller committed
12 13
#include <ctype.h>

14
/* -1 means invalid */
Niels Möller's avatar
Niels Möller committed
15
static const signed char hex_digits[0x100] =
Niels Möller's avatar
Niels Möller committed
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
  {
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
     0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1,
    -1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
  };
34

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
void
die(const char *format, ...)
{
  va_list args;
  va_start(args, format);
#if WITH_HOGWEED
  gmp_vfprintf(stderr, format, args);
#else
  vfprintf(stderr, format, args);
#endif
  va_end(args);

  abort ();
}

50 51 52 53
void *
xalloc(size_t size)
{
  void *p = malloc(size);
54
  if (size && !p)
55 56 57 58 59 60 61 62
    {
      fprintf(stderr, "Virtual memory exhausted.\n");
      abort();
    }

  return p;
}

63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94
static struct tstring *tstring_first = NULL;

struct tstring *
tstring_alloc (unsigned length)
{
  struct tstring *s = xalloc(sizeof(struct tstring) + length - 1);
  s->length = length;
  s->next = tstring_first;
  tstring_first = s;
  return s;
}

void
tstring_clear(void)
{
  while (tstring_first)
    {
      struct tstring *s = tstring_first;
      tstring_first = s->next;
      free(s);
    }
}

struct tstring *
tstring_data(unsigned length, const char *data)
{
  struct tstring *s = tstring_alloc (length);
  memcpy (s->data, data, length);
  return s;
}

static unsigned
95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114
decode_hex_length(const char *h)
{
  const unsigned char *hex = (const unsigned char *) h;
  unsigned count;
  unsigned i;
  
  for (count = i = 0; hex[i]; i++)
    {
      if (isspace(hex[i]))
	continue;
      if (hex_digits[hex[i]] < 0)
	abort();
      count++;
    }

  if (count % 2)
    abort();
  return count / 2;  
}

115
static void
116 117 118
decode_hex(uint8_t *dst, const char *h)
{  
  const unsigned char *hex = (const unsigned char *) h;
Niels Möller's avatar
Niels Möller committed
119
  unsigned i = 0;
120
  
Niels Möller's avatar
Niels Möller committed
121 122 123 124
  for (;;)
  {
    int high, low;
    
125
    while (*hex && isspace(*hex))
Niels Möller's avatar
Niels Möller committed
126 127 128
      hex++;

    if (!*hex)
129
      return;
Niels Möller's avatar
Niels Möller committed
130

131
    high = hex_digits[*hex++];
132
    ASSERT (high >= 0);
Niels Möller's avatar
Niels Möller committed
133

134
    while (*hex && isspace(*hex))
Niels Möller's avatar
Niels Möller committed
135 136
      hex++;

137
    ASSERT (*hex);
Niels Möller's avatar
Niels Möller committed
138

139
    low = hex_digits[*hex++];
140
    ASSERT (low >= 0);
Niels Möller's avatar
Niels Möller committed
141 142 143 144 145

    dst[i++] = (high << 4) | low;
  }
}

146 147
struct tstring *
tstring_hex(const char *hex)
Niels Möller's avatar
Niels Möller committed
148
{
149
  struct tstring *s;
150
  unsigned length = decode_hex_length(hex);
Niels Möller's avatar
Niels Möller committed
151

152
  s = tstring_alloc(length);
Niels Möller's avatar
Niels Möller committed
153

154 155 156 157 158 159 160 161
  decode_hex(s->data, hex);
  return s;
}

void
tstring_print_hex(const struct tstring *s)
{
  print_hex (s->length, s->data);
Niels Möller's avatar
Niels Möller committed
162
}
163

164
void
Niels Möller's avatar
Niels Möller committed
165
print_hex(unsigned length, const uint8_t *data)
166 167 168 169 170
{
  unsigned i;
  
  for (i = 0; i < length; i++)
    {
Niels Möller's avatar
Niels Möller committed
171 172 173 174 175 176 177 178 179 180 181
      switch (i % 16)
	{
	default:
	  break;
	case 0:
	  printf("\n");
	  break;
	case 8:
	  printf(" ");
	  break;
	}
182 183
      printf("%02x", data[i]);
    }
Niels Möller's avatar
Niels Möller committed
184
  printf("\n");
185 186
}

Niels Möller's avatar
Niels Möller committed
187 188 189 190 191
int verbose = 0;

int
main(int argc, char **argv)
{
192 193
  if (argc > 1)
    {
194
      if (argc == 2 && !strcmp(argv[1], "-v"))
Niels Möller's avatar
Niels Möller committed
195
	verbose = 1;
196 197 198 199 200 201 202
      else
	{
	  fprintf(stderr, "Invalid argument `%s', only accepted option is `-v'.\n",
		  argv[1]);
	  return 1;
	}
    }
Niels Möller's avatar
Niels Möller committed
203

204 205 206 207
  test_main();

  tstring_clear();
  return EXIT_SUCCESS;
Niels Möller's avatar
Niels Möller committed
208 209
}

210 211
void
test_cipher(const struct nettle_cipher *cipher,
212 213 214
	    const struct tstring *key,
	    const struct tstring *cleartext,
	    const struct tstring *ciphertext)
215
{
216
  void *ctx = xalloc(cipher->context_size);
217 218 219 220
  uint8_t *data = xalloc(cleartext->length);
  unsigned length;
  ASSERT (cleartext->length == ciphertext->length);
  length = cleartext->length;
221

222 223
  cipher->set_encrypt_key(ctx, key->length, key->data);
  cipher->encrypt(ctx, length, data, cleartext->data);
224

225
  if (!MEMEQ(length, data, ciphertext->data))
226 227
    {
      fprintf(stderr, "Encrypt failed:\nInput:");
228
      tstring_print_hex(cleartext);
229 230 231
      fprintf(stderr, "\nOutput: ");
      print_hex(length, data);
      fprintf(stderr, "\nExpected:");
232
      tstring_print_hex(ciphertext);
233 234 235
      fprintf(stderr, "\n");
      FAIL();
    }
236
  cipher->set_decrypt_key(ctx, key->length, key->data);
237 238
  cipher->decrypt(ctx, length, data, data);

239
  if (!MEMEQ(length, data, cleartext->data))
240 241
    {
      fprintf(stderr, "Decrypt failed:\nInput:");
242
      tstring_print_hex(ciphertext);
243 244 245
      fprintf(stderr, "\nOutput: ");
      print_hex(length, data);
      fprintf(stderr, "\nExpected:");
246
      tstring_print_hex(cleartext);
247 248 249
      fprintf(stderr, "\n");
      FAIL();
    }
250 251 252

  free(ctx);
  free(data);
253 254 255 256
}

void
test_cipher_cbc(const struct nettle_cipher *cipher,
257 258 259 260
		const struct tstring *key,
		const struct tstring *cleartext,
		const struct tstring *ciphertext,
		const struct tstring *iiv)
261
{
262
  void *ctx = xalloc(cipher->context_size);
263
  uint8_t *data;
264
  uint8_t *iv = xalloc(cipher->block_size);
265 266 267 268 269 270 271 272 273 274
  unsigned length;

  ASSERT (cleartext->length == ciphertext->length);
  length = cleartext->length;

  ASSERT (iiv->length == cipher->block_size);

  data = xalloc(length);  
  cipher->set_encrypt_key(ctx, key->length, key->data);
  memcpy(iv, iiv->data, cipher->block_size);
275 276 277

  cbc_encrypt(ctx, cipher->encrypt,
	      cipher->block_size, iv,
278
	      length, data, cleartext->data);
279

280
  if (!MEMEQ(length, data, ciphertext->data))
281 282
    {
      fprintf(stderr, "CBC encrypt failed:\nInput:");
283
      tstring_print_hex(cleartext);
284 285 286
      fprintf(stderr, "\nOutput: ");
      print_hex(length, data);
      fprintf(stderr, "\nExpected:");
287
      tstring_print_hex(ciphertext);
288 289 290
      fprintf(stderr, "\n");
      FAIL();
    }
291 292
  cipher->set_decrypt_key(ctx, key->length, key->data);
  memcpy(iv, iiv->data, cipher->block_size);
293 294 295 296 297

  cbc_decrypt(ctx, cipher->decrypt,
	      cipher->block_size, iv,
	      length, data, data);

298
  if (!MEMEQ(length, data, cleartext->data))
299 300
    {
      fprintf(stderr, "CBC decrypt failed:\nInput:");
301
      tstring_print_hex(ciphertext);
302 303 304
      fprintf(stderr, "\nOutput: ");
      print_hex(length, data);
      fprintf(stderr, "\nExpected:");
305
      tstring_print_hex(cleartext);
306 307 308
      fprintf(stderr, "\n");
      FAIL();
    }
309

310 311 312
  free(ctx);
  free(data);
  free(iv);
313 314
}

315 316
void
test_cipher_ctr(const struct nettle_cipher *cipher,
317 318 319 320
		const struct tstring *key,
		const struct tstring *cleartext,
		const struct tstring *ciphertext,
		const struct tstring *ictr)
321 322
{
  void *ctx = xalloc(cipher->context_size);
323
  uint8_t *data;
324
  uint8_t *ctr = xalloc(cipher->block_size);
325
  uint8_t *octr = xalloc(cipher->block_size);
326
  unsigned length;
327
  unsigned low, nblocks;
328 329 330 331 332

  ASSERT (cleartext->length == ciphertext->length);
  length = cleartext->length;

  ASSERT (ictr->length == cipher->block_size);
333 334 335 336 337 338 339 340 341 342 343 344

  /* Compute expected counter value after the operation. */
  nblocks = (length + cipher->block_size - 1) / cipher->block_size;
  ASSERT (nblocks < 0x100);

  memcpy (octr, ictr->data, cipher->block_size - 1);
  low = ictr->data[cipher->block_size - 1] + nblocks;
  octr[cipher->block_size - 1] = low;

  if (low >= 0x100)
    INCREMENT (cipher->block_size - 1, octr);

345 346 347 348
  data = xalloc(length);  

  cipher->set_encrypt_key(ctx, key->length, key->data);
  memcpy(ctr, ictr->data, cipher->block_size);
349 350 351

  ctr_crypt(ctx, cipher->encrypt,
	    cipher->block_size, ctr,
352
	    length, data, cleartext->data);
353

354
  if (!MEMEQ(length, data, ciphertext->data))
355 356
    {
      fprintf(stderr, "CTR encrypt failed:\nInput:");
357
      tstring_print_hex(cleartext);
358 359 360
      fprintf(stderr, "\nOutput: ");
      print_hex(length, data);
      fprintf(stderr, "\nExpected:");
361
      tstring_print_hex(ciphertext);
362 363 364
      fprintf(stderr, "\n");
      FAIL();
    }
365

366 367
  ASSERT (MEMEQ (cipher->block_size, ctr, octr));

368
  memcpy(ctr, ictr->data, cipher->block_size);
369 370 371 372 373

  ctr_crypt(ctx, cipher->encrypt,
	    cipher->block_size, ctr,
	    length, data, data);

374
  if (!MEMEQ(length, data, cleartext->data))
375 376
    {
      fprintf(stderr, "CTR decrypt failed:\nInput:");
377
      tstring_print_hex(ciphertext);
378 379 380
      fprintf(stderr, "\nOutput: ");
      print_hex(length, data);
      fprintf(stderr, "\nExpected:");
381
      tstring_print_hex(cleartext);
382 383 384
      fprintf(stderr, "\n");
      FAIL();
    }
385

386 387
  ASSERT (MEMEQ (cipher->block_size, ctr, octr));

388 389
  free(ctx);
  free(data);
390
  free(octr);
391 392 393
  free(ctr);
}

394 395
void
test_cipher_stream(const struct nettle_cipher *cipher,
396 397 398
		   const struct tstring *key,
		   const struct tstring *cleartext,
		   const struct tstring *ciphertext)
399 400 401
{
  unsigned block;
  
402
  void *ctx = xalloc(cipher->context_size);
403 404 405 406 407 408 409 410
  uint8_t *data;
  unsigned length;

  ASSERT (cleartext->length == ciphertext->length);
  length = cleartext->length;

  data = xalloc(length + 1);

411 412 413 414 415
  for (block = 1; block <= length; block++)
    {
      unsigned i;

      memset(data, 0x17, length + 1);
416
      cipher->set_encrypt_key(ctx, key->length, key->data);
417 418 419

      for (i = 0; i + block < length; i += block)
	{
420 421
	  cipher->encrypt(ctx, block, data + i, cleartext->data + i);
	  ASSERT (data[i + block] == 0x17);
422
	}
423

424 425
      cipher->encrypt(ctx, length - i, data + i, cleartext->data + i);
      ASSERT (data[length] == 0x17);
426
      
427
      if (!MEMEQ(length, data, ciphertext->data))
428 429
	{
	  fprintf(stderr, "Encrypt failed, block size %d\nInput:", block);
430
	  tstring_print_hex(cleartext);
431 432 433
	  fprintf(stderr, "\nOutput: ");
	  print_hex(length, data);
	  fprintf(stderr, "\nExpected:");
434
	  tstring_print_hex(ciphertext);
435 436 437
	  fprintf(stderr, "\n");
	  FAIL();	    
	}
438 439
    }
  
440
  cipher->set_decrypt_key(ctx, key->length, key->data);
441 442
  cipher->decrypt(ctx, length, data, data);

443
  ASSERT (data[length] == 0x17);
444

445
  if (!MEMEQ(length, data, cleartext->data))
446 447
    {
      fprintf(stderr, "Decrypt failed\nInput:");
448
      tstring_print_hex(ciphertext);
449 450 451
      fprintf(stderr, "\nOutput: ");
      print_hex(length, data);
      fprintf(stderr, "\nExpected:");
452
      tstring_print_hex(cleartext);
453 454 455
      fprintf(stderr, "\n");
      FAIL();	    
    }
456 457 458

  free(ctx);
  free(data);
459 460
}

461 462
void
test_aead(const struct nettle_aead *aead,
463 464 465 466 467 468
	  const struct tstring *key,
	  const struct tstring *authtext,
	  const struct tstring *cleartext,
	  const struct tstring *ciphertext,
	  const struct tstring *iv,
	  const struct tstring *digest)
469 470
{
  void *ctx = xalloc(aead->context_size);
471
  uint8_t *data;
472
  uint8_t *buffer = xalloc(aead->block_size);
473 474 475 476
  unsigned length;

  ASSERT (cleartext->length == ciphertext->length);
  length = cleartext->length;
477

478 479 480 481
  ASSERT (digest->length == aead->block_size);

  data = xalloc(length);
  
482 483
  /* encryption */
  memset(buffer, 0, aead->block_size);
484
  aead->set_key(ctx, key->length, key->data);
485

486
  aead->set_iv(ctx, iv->length, iv->data);
487

488 489
  if (authtext->length)
    aead->update(ctx, authtext->length, authtext->data);
490 491
    
  if (length)
492
    aead->encrypt(ctx, length, data, cleartext->data);
493 494 495

  aead->digest(ctx, aead->block_size, buffer);

496 497
  ASSERT(MEMEQ(length, data, ciphertext->data));
  ASSERT(MEMEQ(aead->block_size, buffer, digest->data));
498 499 500

  /* decryption */
  memset(buffer, 0, aead->block_size);
501
  aead->set_iv(ctx, iv->length, iv->data);
502

503 504
  if (authtext->length)
    aead->update(ctx, authtext->length, authtext->data);
505 506 507 508 509 510
    
  if (length)
    aead->decrypt(ctx, length, data, data);

  aead->digest(ctx, aead->block_size, buffer);

511 512
  ASSERT(MEMEQ(length, data, cleartext->data));
  ASSERT(MEMEQ(aead->block_size, buffer, digest->data));
513 514 515 516 517 518

  free(ctx);
  free(data);
  free(buffer);
}

519 520
void
test_hash(const struct nettle_hash *hash,
521 522
	  const struct tstring *msg,
	  const struct tstring *digest)
523
{
524 525
  void *ctx = xalloc(hash->context_size);
  uint8_t *buffer = xalloc(hash->digest_size);
526 527
  uint8_t *input;
  unsigned offset;
528

529 530
  ASSERT (digest->length == hash->digest_size);

531
  hash->init(ctx);
532
  hash->update(ctx, msg->length, msg->data);
533 534
  hash->digest(ctx, hash->digest_size, buffer);

535 536 537 538 539 540 541 542
  if (MEMEQ(hash->digest_size, digest->data, buffer) == 0)
    {
      fprintf(stdout, "\nGot:\n");
      print_hex(hash->digest_size, buffer);
      fprintf(stdout, "\nExpected:\n");
      print_hex(hash->digest_size, digest->data);
      abort();
    }
543 544 545 546

  memset(buffer, 0, hash->digest_size);

  hash->init(ctx);
547
  hash->update(ctx, msg->length, msg->data);
548 549
  hash->digest(ctx, hash->digest_size - 1, buffer);

550
  ASSERT(MEMEQ(hash->digest_size - 1, digest->data, buffer));
551

552
  ASSERT(buffer[hash->digest_size - 1] == 0);
553

554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569
  input = xalloc (msg->length + 16);
  for (offset = 0; offset < 16; offset++)
    {
      memset (input, 0, msg->length + 16);
      memcpy (input + offset, msg->data, msg->length);
      hash->update (ctx, msg->length, input + offset);
      hash->digest (ctx, hash->digest_size, buffer);
      if (MEMEQ(hash->digest_size, digest->data, buffer) == 0)
	{
	  fprintf(stdout, "hash input address: %p\nGot:\n", input + offset);
	  print_hex(hash->digest_size, buffer);
	  fprintf(stdout, "\nExpected:\n");
	  print_hex(hash->digest_size, digest->data);
	  abort();
	}      
    }
570 571
  free(ctx);
  free(buffer);
572
  free(input);
573
}
574

575 576 577 578
void
test_hash_large(const struct nettle_hash *hash,
		unsigned count, unsigned length,
		uint8_t c,
579
		const struct tstring *digest)
580 581 582 583 584 585
{
  void *ctx = xalloc(hash->context_size);
  uint8_t *buffer = xalloc(hash->digest_size);
  uint8_t *data = xalloc(length);
  unsigned i;

586 587
  ASSERT (digest->length == hash->digest_size);

588 589 590 591 592 593 594 595 596
  memset(data, c, length);

  hash->init(ctx);
  for (i = 0; i < count; i++)
    hash->update(ctx, length, data);
  hash->digest(ctx, hash->digest_size, buffer);

  print_hex(hash->digest_size, buffer);

597
  ASSERT (MEMEQ(hash->digest_size, digest->data, buffer));
598 599 600 601 602 603

  free(ctx);
  free(buffer);
  free(data);
}

Niels Möller's avatar
Niels Möller committed
604 605 606 607 608 609
void
test_armor(const struct nettle_armor *armor,
           unsigned data_length,
           const uint8_t *data,
           const uint8_t *ascii)
{
610
  size_t ascii_length = strlen(ascii);
611 612 613 614
  uint8_t *buffer = xalloc(1 + ascii_length);
  uint8_t *check = xalloc(1 + armor->decode_length(ascii_length));
  void *encode = xalloc(armor->encode_context_size);
  void *decode = xalloc(armor->decode_context_size);
615
  size_t done;
616 617 618 619

  ASSERT(ascii_length
	 <= (armor->encode_length(data_length) + armor->encode_final_length));
  ASSERT(data_length <= armor->decode_length(ascii_length));
620 621
  
  memset(buffer, 0x33, 1 + ascii_length);
622
  memset(check, 0x55, 1 + data_length);
Niels Möller's avatar
Niels Möller committed
623

624 625 626 627 628 629
  armor->encode_init(encode);
  
  done = armor->encode_update(encode, buffer, data_length, data);
  done += armor->encode_final(encode, buffer + done);
  ASSERT(done == ascii_length);

630 631
  ASSERT (MEMEQ(ascii_length, buffer, ascii));
  ASSERT (0x33 == buffer[strlen(ascii)]);
Niels Möller's avatar
Niels Möller committed
632

633
  armor->decode_init(decode);
634
  done = armor->decode_length(ascii_length);
Niels Möller's avatar
Niels Möller committed
635

636 637 638
  ASSERT(armor->decode_update(decode, &done, check, ascii_length, buffer));
  ASSERT(done == data_length);
  ASSERT(armor->decode_final(decode));
639
  
640 641
  ASSERT (MEMEQ(data_length, check, data));
  ASSERT (0x55 == check[data_length]);
642 643 644 645 646

  free(buffer);
  free(check);
  free(encode);
  free(decode);
Niels Möller's avatar
Niels Möller committed
647 648
}

649 650 651 652 653 654 655 656 657 658
#if HAVE_LIBGMP
/* Missing in current gmp */
static void
mpz_togglebit (mpz_t x, unsigned long int bit)
{
  if (mpz_tstbit(x, bit))
    mpz_clrbit(x, bit);
  else
    mpz_setbit(x, bit);
}
659 660
#endif /* HAVE_LIBGMP */

661
#if WITH_HOGWEED
662

Niels Möller's avatar
Niels Möller committed
663 664 665 666 667 668
mp_limb_t *
xalloc_limbs (mp_size_t n)
{
  return xalloc (n * sizeof (mp_limb_t));
}

669
#define SIGN(key, hash, msg, signature) do {		\
670
  hash##_update(&hash, LDATA(msg));		\
671
  ASSERT(rsa_##hash##_sign(key, &hash, signature));	\
672 673 674 675 676 677
} while(0)

#define VERIFY(key, hash, msg, signature) (	\
  hash##_update(&hash, LDATA(msg)),		\
  rsa_##hash##_verify(key, &hash, signature)	\
)
678

679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727
void
test_rsa_set_key_1(struct rsa_public_key *pub,
		   struct rsa_private_key *key)
{
  /* Initialize key pair for test programs */
  /* 1000-bit key, generated by
   *
   *   lsh-keygen -a rsa -l 1000 -f advanced-hex
   *
   * (private-key (rsa-pkcs1 
   *        (n #69abd505285af665 36ddc7c8f027e6f0 ed435d6748b16088
   *            4fd60842b3a8d7fb bd8a3c98f0cc50ae 4f6a9f7dd73122cc
   *            ec8afa3f77134406 f53721973115fc2d 8cfbba23b145f28d
   *            84f81d3b6ae8ce1e 2850580c026e809b cfbb52566ea3a3b3
   *            df7edf52971872a7 e35c1451b8636d22 279a8fb299368238
   *            e545fbb4cf#)
   *        (e #0db2ad57#)
   *        (d #3240a56f4cd0dcc2 4a413eb4ea545259 5c83d771a1c2ba7b
   *            ec47c5b43eb4b374 09bd2aa1e236dd86 481eb1768811412f
   *            f8d91be3545912af b55c014cb55ceac6 54216af3b85d5c4f
   *            4a32894e3b5dfcde 5b2875aa4dc8d9a8 6afd0ca92ef50d35
   *            bd09f1c47efb4c8d c631e07698d362aa 4a83fd304e66d6c5
   *            468863c307#)
   *        (p #0a66399919be4b4d e5a78c5ea5c85bf9 aba8c013cb4a8732
   *            14557a12bd67711e bb4073fd39ad9a86 f4e80253ad809e5b
   *            f2fad3bc37f6f013 273c9552c9f489#)
   *        (q #0a294f069f118625 f5eae2538db9338c 776a298eae953329
   *            9fd1eed4eba04e82 b2593bc98ba8db27 de034da7daaea795
   *            2d55b07b5f9a5875 d1ca5f6dcab897#)
   *        (a #011b6c48eb592eee e85d1bb35cfb6e07 344ea0b5e5f03a28
   *            5b405396cbc78c5c 868e961db160ba8d 4b984250930cf79a
   *            1bf8a9f28963de53 128aa7d690eb87#)
   *        (b #0409ecf3d2557c88 214f1af5e1f17853 d8b2d63782fa5628
   *            60cf579b0833b7ff 5c0529f2a97c6452 2fa1a8878a9635ab
   *            ce56debf431bdec2 70b308fa5bf387#)
   *        (c #04e103ee925cb5e6 6653949fa5e1a462 c9e65e1adcd60058
   *            e2df9607cee95fa8 daec7a389a7d9afc 8dd21fef9d83805a
   *            40d46f49676a2f6b 2926f70c572c00#)))
   */
  
  mpz_set_str(pub->n,
	      "69abd505285af665" "36ddc7c8f027e6f0" "ed435d6748b16088"
	      "4fd60842b3a8d7fb" "bd8a3c98f0cc50ae" "4f6a9f7dd73122cc"
	      "ec8afa3f77134406" "f53721973115fc2d" "8cfbba23b145f28d"
	      "84f81d3b6ae8ce1e" "2850580c026e809b" "cfbb52566ea3a3b3"
	      "df7edf52971872a7" "e35c1451b8636d22" "279a8fb299368238"
	      "e545fbb4cf", 16);
  mpz_set_str(pub->e, "0db2ad57", 16);

728
  ASSERT (rsa_public_key_prepare(pub));
729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765
  
  /* d is not used */
#if 0  
  mpz_set_str(key->d,
	      "3240a56f4cd0dcc2" "4a413eb4ea545259" "5c83d771a1c2ba7b"
	      "ec47c5b43eb4b374" "09bd2aa1e236dd86" "481eb1768811412f"
	      "f8d91be3545912af" "b55c014cb55ceac6" "54216af3b85d5c4f"
	      "4a32894e3b5dfcde" "5b2875aa4dc8d9a8" "6afd0ca92ef50d35"
	      "bd09f1c47efb4c8d" "c631e07698d362aa" "4a83fd304e66d6c5"
	      "468863c307", 16);
#endif
  
  mpz_set_str(key->p,
	      "0a66399919be4b4d" "e5a78c5ea5c85bf9" "aba8c013cb4a8732"
	      "14557a12bd67711e" "bb4073fd39ad9a86" "f4e80253ad809e5b"
	      "f2fad3bc37f6f013" "273c9552c9f489", 16);

  mpz_set_str(key->q,
	      "0a294f069f118625" "f5eae2538db9338c" "776a298eae953329"
	      "9fd1eed4eba04e82" "b2593bc98ba8db27" "de034da7daaea795"
	      "2d55b07b5f9a5875" "d1ca5f6dcab897", 16);
  
  mpz_set_str(key->a,
	      "011b6c48eb592eee" "e85d1bb35cfb6e07" "344ea0b5e5f03a28"
	      "5b405396cbc78c5c" "868e961db160ba8d" "4b984250930cf79a"
	      "1bf8a9f28963de53" "128aa7d690eb87", 16);
  
  mpz_set_str(key->b,
	      "0409ecf3d2557c88" "214f1af5e1f17853" "d8b2d63782fa5628"
	      "60cf579b0833b7ff" "5c0529f2a97c6452" "2fa1a8878a9635ab"
	      "ce56debf431bdec2" "70b308fa5bf387", 16);
  
  mpz_set_str(key->c,
	      "04e103ee925cb5e6" "6653949fa5e1a462" "c9e65e1adcd60058"
	      "e2df9607cee95fa8" "daec7a389a7d9afc" "8dd21fef9d83805a"
	      "40d46f49676a2f6b" "2926f70c572c00", 16);

766 767
  ASSERT (rsa_private_key_prepare(key));
  ASSERT (pub->size == key->size);
768 769
}

770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789
void
test_rsa_md5(struct rsa_public_key *pub,
	     struct rsa_private_key *key,
	     mpz_t expected)
{
  struct md5_ctx md5;
  mpz_t signature;

  md5_init(&md5);
  mpz_init(signature);
  
  SIGN(key, md5, "The magic words are squeamish ossifrage", signature);

  if (verbose)
    {
      fprintf(stderr, "rsa-md5 signature: ");
      mpz_out_str(stderr, 16, signature);
      fprintf(stderr, "\n");
    }

790
  ASSERT (mpz_cmp(signature, expected) == 0);
791 792
  
  /* Try bad data */
793 794
  ASSERT (!VERIFY(pub, md5,
		  "The magick words are squeamish ossifrage", signature));
795 796

  /* Try correct data */
797 798
  ASSERT (VERIFY(pub, md5,
		 "The magic words are squeamish ossifrage", signature));
799 800 801

  /* Try bad signature */
  mpz_togglebit(signature, 17);
802 803
  ASSERT (!VERIFY(pub, md5,
		  "The magic words are squeamish ossifrage", signature));
804 805 806 807 808 809

  mpz_clear(signature);
}

void
test_rsa_sha1(struct rsa_public_key *pub,
810 811
	      struct rsa_private_key *key,
	      mpz_t expected)
812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827
{
  struct sha1_ctx sha1;
  mpz_t signature;

  sha1_init(&sha1);
  mpz_init(signature);

  SIGN(key, sha1, "The magic words are squeamish ossifrage", signature);

  if (verbose)
    {
      fprintf(stderr, "rsa-sha1 signature: ");
      mpz_out_str(stderr, 16, signature);
      fprintf(stderr, "\n");
    }

828
  ASSERT (mpz_cmp(signature, expected) == 0);
829 830
  
  /* Try bad data */
831 832
  ASSERT (!VERIFY(pub, sha1,
		  "The magick words are squeamish ossifrage", signature));
833 834

  /* Try correct data */
835 836
  ASSERT (VERIFY(pub, sha1,
		 "The magic words are squeamish ossifrage", signature));
837 838 839

  /* Try bad signature */
  mpz_togglebit(signature, 17);
840 841
  ASSERT (!VERIFY(pub, sha1,
		  "The magic words are squeamish ossifrage", signature));
842 843 844

  mpz_clear(signature);
}
845

846 847
void
test_rsa_sha256(struct rsa_public_key *pub,
848 849
		struct rsa_private_key *key,
		mpz_t expected)
850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865
{
  struct sha256_ctx sha256;
  mpz_t signature;

  sha256_init(&sha256);
  mpz_init(signature);

  SIGN(key, sha256, "The magic words are squeamish ossifrage", signature);

  if (verbose)
    {
      fprintf(stderr, "rsa-sha256 signature: ");
      mpz_out_str(stderr, 16, signature);
      fprintf(stderr, "\n");
    }

866
  ASSERT (mpz_cmp(signature, expected) == 0);
867 868
  
  /* Try bad data */
869 870
  ASSERT (!VERIFY(pub, sha256,
		  "The magick words are squeamish ossifrage", signature));
871 872

  /* Try correct data */
873 874
  ASSERT (VERIFY(pub, sha256,
		 "The magic words are squeamish ossifrage", signature));
875 876 877

  /* Try bad signature */
  mpz_togglebit(signature, 17);
878 879
  ASSERT (!VERIFY(pub, sha256,
		  "The magic words are squeamish ossifrage", signature));
880 881 882 883

  mpz_clear(signature);
}

884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903
void
test_rsa_sha512(struct rsa_public_key *pub,
		struct rsa_private_key *key,
		mpz_t expected)
{
  struct sha512_ctx sha512;
  mpz_t signature;

  sha512_init(&sha512);
  mpz_init(signature);

  SIGN(key, sha512, "The magic words are squeamish ossifrage", signature);

  if (verbose)
    {
      fprintf(stderr, "rsa-sha512 signature: ");
      mpz_out_str(stderr, 16, signature);
      fprintf(stderr, "\n");
    }

904
  ASSERT (mpz_cmp(signature, expected) == 0);
905 906
  
  /* Try bad data */
907 908
  ASSERT (!VERIFY(pub, sha512,
		  "The magick words are squeamish ossifrage", signature));
909 910

  /* Try correct data */
911 912
  ASSERT (VERIFY(pub, sha512,
		 "The magic words are squeamish ossifrage", signature));
913 914 915

  /* Try bad signature */
  mpz_togglebit(signature, 17);
916 917
  ASSERT (!VERIFY(pub, sha512,
		  "The magic words are squeamish ossifrage", signature));
918 919 920 921

  mpz_clear(signature);
}

Niels Möller's avatar
Niels Möller committed
922 923 924
#undef SIGN
#undef VERIFY

925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958
void
test_rsa_key(struct rsa_public_key *pub,
	     struct rsa_private_key *key)
{
  mpz_t tmp;
  mpz_t phi;
  
  mpz_init(tmp); mpz_init(phi);
  
  if (verbose)
    {
      /* FIXME: Use gmp_printf */
      fprintf(stderr, "Public key: n=");
      mpz_out_str(stderr, 16, pub->n);
      fprintf(stderr, "\n    e=");
      mpz_out_str(stderr, 16, pub->e);

      fprintf(stderr, "\n\nPrivate key: d=");
      mpz_out_str(stderr, 16, key->d);
      fprintf(stderr, "\n    p=");
      mpz_out_str(stderr, 16, key->p);
      fprintf(stderr, "\n    q=");
      mpz_out_str(stderr, 16, key->q);
      fprintf(stderr, "\n    a=");
      mpz_out_str(stderr, 16, key->a);
      fprintf(stderr, "\n    b=");
      mpz_out_str(stderr, 16, key->b);
      fprintf(stderr, "\n    c=");
      mpz_out_str(stderr, 16, key->c);
      fprintf(stderr, "\n\n");
    }

  /* Check n = p q */
  mpz_mul(tmp, key->p, key->q);
959
  ASSERT (mpz_cmp(tmp, pub->n)== 0);
960 961 962 963

  /* Check c q = 1 mod p */
  mpz_mul(tmp, key->c, key->q);
  mpz_fdiv_r(tmp, tmp, key->p);
964
  ASSERT (mpz_cmp_ui(tmp, 1) == 0);
965 966 967 968 969 970 971 972 973

  /* Check ed = 1 (mod phi) */
  mpz_sub_ui(phi, key->p, 1);
  mpz_sub_ui(tmp, key->q, 1);

  mpz_mul(phi, phi, tmp);

  mpz_mul(tmp, pub->e, key->d);
  mpz_fdiv_r(tmp, tmp, phi);
974
  ASSERT (mpz_cmp_ui(tmp, 1) == 0);
975 976 977 978 979

  /* Check a e = 1 (mod (p-1) ) */
  mpz_sub_ui(phi, key->p, 1);
  mpz_mul(tmp, pub->e, key->a);
  mpz_fdiv_r(tmp, tmp, phi);
980
  ASSERT (mpz_cmp_ui(tmp, 1) == 0);
981 982 983 984 985
  
  /* Check b e = 1 (mod (q-1) ) */
  mpz_sub_ui(phi, key->q, 1);
  mpz_mul(tmp, pub->e, key->b);
  mpz_fdiv_r(tmp, tmp, phi);
986
  ASSERT (mpz_cmp_ui(tmp, 1) == 0);
987 988 989
  
  mpz_clear(tmp); mpz_clear(phi);
}
Niels Möller's avatar
Niels Möller committed
990

991 992 993 994
/* Requires that the context is named like the hash algorithm. */
#define DSA_VERIFY(key, hash, msg, signature)	\
  (hash##_update(&hash, LDATA(msg)),		\
   dsa_##hash##_verify(key, &hash, signature))
Niels Möller's avatar
Niels Möller committed
995 996

void
997
test_dsa160(const struct dsa_public_key *pub,
998 999
	    const struct dsa_private_key *key,
	    const struct dsa_signature *expected)
Niels Möller's avatar
Niels Möller committed
1000 1001 1002 1003 1004 1005 1006 1007 1008 1009
{
  struct sha1_ctx sha1;
  struct dsa_signature signature;
  struct knuth_lfib_ctx lfib;
  
  sha1_init(&sha1);
  dsa_signature_init(&signature);
  knuth_lfib_init(&lfib, 1111);
  
  sha1_update(&sha1, LDATA("The magic words are squeamish ossifrage"));
1010 1011 1012
  ASSERT (dsa_sha1_sign(pub, key,
			&lfib, (nettle_random_func *) knuth_lfib_random,
			&sha1, &signature));
1013

Niels Möller's avatar
Niels Möller committed
1014 1015
  if (verbose)
    {
1016 1017 1018 1019 1020 1021
      fprintf(stderr, "dsa160 signature: ");
      mpz_out_str(stderr, 16, signature.r);
      fprintf(stderr, ", ");
      mpz_out_str(stderr, 16, signature.s);
      fprintf(stderr, "\n");
    }
1022 1023

  if (expected)
1024 1025
    ASSERT (mpz_cmp (signature.r, expected->r) == 0
	    && mpz_cmp (signature.s, expected->s) == 0);
1026 1027
  
  /* Try bad data */
1028 1029 1030
  ASSERT (!DSA_VERIFY(pub, sha1,
		      "The magick words are squeamish ossifrage",
		      &signature));
1031 1032

  /* Try correct data */
1033 1034 1035
  ASSERT (DSA_VERIFY(pub, sha1,
		     "The magic words are squeamish ossifrage",
		     &signature));
1036 1037 1038

  /* Try bad signature */
  mpz_togglebit(signature.r, 17);
1039 1040 1041
  ASSERT (!DSA_VERIFY(pub, sha1,
		      "The magic words are squeamish ossifrage",
		      &signature));
1042 1043 1044 1045 1046 1047

  dsa_signature_clear(&signature);
}

void
test_dsa256(const struct dsa_public_key *pub,
1048 1049
	    const struct dsa_private_key *key,
	    const struct dsa_signature *expected)
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066
{
  struct sha256_ctx sha256;
  struct dsa_signature signature;
  struct knuth_lfib_ctx lfib;
  
  sha256_init(&sha256);
  dsa_signature_init(&signature);
  knuth_lfib_init(&lfib, 1111);
  
  sha256_update(&sha256, LDATA("The magic words are squeamish ossifrage"));
  ASSERT (dsa_sha256_sign(pub, key,
			&lfib, (nettle_random_func *) knuth_lfib_random,
			&sha256, &signature));
  
  if (verbose)
    {
      fprintf(stderr, "dsa256 signature: ");
Niels Möller's avatar
Niels Möller committed
1067 1068 1069 1070 1071 1072
      mpz_out_str(stderr, 16, signature.r);
      fprintf(stderr, ", ");
      mpz_out_str(stderr, 16, signature.s);
      fprintf(stderr, "\n");
    }

1073
  if (expected)
1074 1075
    ASSERT (mpz_cmp (signature.r, expected->r) == 0
	    && mpz_cmp (signature.s, expected->s) == 0);
Niels Möller's avatar
Niels Möller committed
1076 1077
  
  /* Try bad data */
1078 1079 1080
  ASSERT (!DSA_VERIFY(pub, sha256,
		      "The magick words are squeamish ossifrage",
		      &signature));
Niels Möller's avatar
Niels Möller committed
1081 1082

  /* Try correct data */
1083 1084 1085
  ASSERT (DSA_VERIFY(pub, sha256,
		     "The magic words are squeamish ossifrage",
		     &signature));
Niels Möller's avatar
Niels Möller committed
1086 1087 1088

  /* Try bad signature */
  mpz_togglebit(signature.r, 17);
1089 1090 1091
  ASSERT (!DSA_VERIFY(pub, sha256,
		      "The magic words are squeamish ossifrage",
		      &signature));
Niels Möller's avatar
Niels Möller committed
1092 1093 1094 1095

  dsa_signature_clear(&signature);
}

1096 1097
void
test_dsa_key(struct dsa_public_key *pub,
1098 1099
	     struct dsa_private_key *key,
	     unsigned q_size)
1100 1101 1102 1103 1104
{
  mpz_t t;

  mpz_init(t);

1105
  ASSERT(mpz_sizeinbase(pub->q, 2) == q_size);
1106
  ASSERT(mpz_sizeinbase(pub->p, 2) >= DSA_SHA1_MIN_P_BITS);
1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122
  
  ASSERT(mpz_probab_prime_p(pub->p, 10));

  ASSERT(mpz_probab_prime_p(pub->q,