| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: rspit.c,v 1.16 2001/04/29 18:11:32 mdw Exp $ |
| 4 | * |
| 5 | * Spit out random numbers |
| 6 | * |
| 7 | * (c) 1999 Straylight/Edgeware |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of Catacomb. |
| 13 | * |
| 14 | * Catacomb is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU Library General Public License as |
| 16 | * published by the Free Software Foundation; either version 2 of the |
| 17 | * License, or (at your option) any later version. |
| 18 | * |
| 19 | * Catacomb is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU Library General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU Library General Public |
| 25 | * License along with Catacomb; if not, write to the Free |
| 26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 27 | * MA 02111-1307, USA. |
| 28 | */ |
| 29 | |
| 30 | /*----- Revision history --------------------------------------------------* |
| 31 | * |
| 32 | * $Log: rspit.c,v $ |
| 33 | * Revision 1.16 2001/04/29 18:11:32 mdw |
| 34 | * New block ciphers. |
| 35 | * |
| 36 | * Revision 1.15 2001/04/19 18:26:13 mdw |
| 37 | * Use the new MAC keysize names. |
| 38 | * |
| 39 | * Revision 1.14 2001/02/21 20:03:22 mdw |
| 40 | * Added support for MD2 hash function. |
| 41 | * |
| 42 | * Revision 1.13 2000/12/06 20:33:27 mdw |
| 43 | * Make flags be macros rather than enumerations, to ensure that they're |
| 44 | * unsigned. |
| 45 | * |
| 46 | * Revision 1.12 2000/10/08 15:49:18 mdw |
| 47 | * Remove failed kludge for shutting up a warning. |
| 48 | * |
| 49 | * Revision 1.11 2000/10/08 12:10:32 mdw |
| 50 | * Make table have external linkage to bodge around deficiency in C. The |
| 51 | * problem is that @static gen generators[];@ is considered to be a |
| 52 | * `tentative definition', and therefore mustn't have incomplete type, |
| 53 | * which it obviously has. |
| 54 | * |
| 55 | * Revision 1.10 2000/08/11 21:34:59 mdw |
| 56 | * New restartable interface to Maurer testing. |
| 57 | * |
| 58 | * Revision 1.9 2000/08/04 23:24:15 mdw |
| 59 | * Add a timer and a discard option. |
| 60 | * |
| 61 | * Revision 1.8 2000/07/29 22:05:47 mdw |
| 62 | * Fix error in help message about Maurer test syntax. |
| 63 | * |
| 64 | * Revision 1.7 2000/07/18 23:01:26 mdw |
| 65 | * Improve progress indications, and allow user to choose chunk sizes for |
| 66 | * Maurer's test. |
| 67 | * |
| 68 | * Revision 1.6 2000/07/15 20:53:35 mdw |
| 69 | * Add a load of new ciphers and hashes. |
| 70 | * |
| 71 | * Revision 1.5 2000/07/01 11:27:03 mdw |
| 72 | * Portability fix: don't assume that `stdout' is a constant expression. |
| 73 | * Remove old type name `bbs_param'. |
| 74 | * |
| 75 | * Revision 1.4 2000/06/17 12:08:28 mdw |
| 76 | * Restructure handling of cipher-based generators. Add counter-mode |
| 77 | * ciphers and MGF-1 hash functions. Add FIPS 140-1 and Maurer's tests. |
| 78 | * |
| 79 | * Revision 1.3 2000/02/12 18:21:03 mdw |
| 80 | * Overhaul of key management (again). |
| 81 | * |
| 82 | * Revision 1.2 1999/12/22 15:59:51 mdw |
| 83 | * New prime-search system. Read BBS keys from key files. |
| 84 | * |
| 85 | * Revision 1.1 1999/12/10 23:29:13 mdw |
| 86 | * Emit random numbers for statistical tests. |
| 87 | * |
| 88 | */ |
| 89 | |
| 90 | /*----- Header files ------------------------------------------------------*/ |
| 91 | |
| 92 | #include "config.h" |
| 93 | |
| 94 | #include <assert.h> |
| 95 | #include <errno.h> |
| 96 | #include <math.h> |
| 97 | #include <signal.h> |
| 98 | #include <stdio.h> |
| 99 | #include <stdlib.h> |
| 100 | #include <string.h> |
| 101 | #include <time.h> |
| 102 | |
| 103 | #ifndef PORTABLE |
| 104 | # include <unistd.h> |
| 105 | #endif |
| 106 | |
| 107 | #include <mLib/darray.h> |
| 108 | #include <mLib/dstr.h> |
| 109 | #include <mLib/mdwopt.h> |
| 110 | #include <mLib/quis.h> |
| 111 | #include <mLib/report.h> |
| 112 | #include <mLib/sub.h> |
| 113 | |
| 114 | #include "fipstest.h" |
| 115 | #include "grand.h" |
| 116 | #include "maurer.h" |
| 117 | #include "key.h" |
| 118 | |
| 119 | #include "lcrand.h" |
| 120 | #include "fibrand.h" |
| 121 | #include "rand.h" |
| 122 | #include "noise.h" |
| 123 | |
| 124 | #include "bbs.h" |
| 125 | #include "mprand.h" |
| 126 | |
| 127 | #include "rc4.h" |
| 128 | #include "seal.h" |
| 129 | |
| 130 | #include "des-ofb.h" |
| 131 | #include "des3-ofb.h" |
| 132 | #include "rc2-ofb.h" |
| 133 | #include "rc5-ofb.h" |
| 134 | #include "mars-ofb.h" |
| 135 | #include "skipjack-ofb.h" |
| 136 | #include "tea-ofb.h" |
| 137 | #include "xtea-ofb.h" |
| 138 | #include "blowfish-ofb.h" |
| 139 | #include "twofish-ofb.h" |
| 140 | #include "idea-ofb.h" |
| 141 | #include "cast128-ofb.h" |
| 142 | #include "cast256-ofb.h" |
| 143 | #include "rijndael-ofb.h" |
| 144 | #include "safer-ofb.h" |
| 145 | #include "safersk-ofb.h" |
| 146 | #include "square-ofb.h" |
| 147 | #include "serpent-ofb.h" |
| 148 | |
| 149 | #include "des-counter.h" |
| 150 | #include "des3-counter.h" |
| 151 | #include "rc2-counter.h" |
| 152 | #include "rc5-counter.h" |
| 153 | #include "mars-counter.h" |
| 154 | #include "skipjack-counter.h" |
| 155 | #include "tea-counter.h" |
| 156 | #include "xtea-counter.h" |
| 157 | #include "blowfish-counter.h" |
| 158 | #include "twofish-counter.h" |
| 159 | #include "idea-counter.h" |
| 160 | #include "cast128-counter.h" |
| 161 | #include "cast256-counter.h" |
| 162 | #include "rijndael-counter.h" |
| 163 | #include "safer-counter.h" |
| 164 | #include "safersk-counter.h" |
| 165 | #include "square-counter.h" |
| 166 | #include "serpent-counter.h" |
| 167 | |
| 168 | #include "md2-mgf.h" |
| 169 | #include "md4-mgf.h" |
| 170 | #include "md5-mgf.h" |
| 171 | #include "sha-mgf.h" |
| 172 | #include "tiger-mgf.h" |
| 173 | #include "rmd128-mgf.h" |
| 174 | #include "rmd160-mgf.h" |
| 175 | #include "rmd256-mgf.h" |
| 176 | #include "rmd320-mgf.h" |
| 177 | |
| 178 | #include "rmd160.h" |
| 179 | |
| 180 | /*----- Data structures ---------------------------------------------------*/ |
| 181 | |
| 182 | typedef struct gen { |
| 183 | const char *name; |
| 184 | grand *(*seed)(unsigned /*i*/); |
| 185 | unsigned i; |
| 186 | const char *help; |
| 187 | } gen; |
| 188 | |
| 189 | extern gen generators[]; |
| 190 | |
| 191 | #define CIPHERS \ |
| 192 | E(DES, des) \ |
| 193 | E(DES3, des3) \ |
| 194 | E(RC2, rc2) \ |
| 195 | E(RC5, rc5) \ |
| 196 | E(MARS, mars) \ |
| 197 | E(SKIPJACK, skipjack) \ |
| 198 | E(TEA, tea) \ |
| 199 | E(XTEA, xtea) \ |
| 200 | E(BLOWFISH, blowfish) \ |
| 201 | E(TWOFISH, twofish) \ |
| 202 | E(IDEA, idea) \ |
| 203 | E(CAST128, cast128) \ |
| 204 | E(CAST256, cast256) \ |
| 205 | E(SQUARE, square) \ |
| 206 | E(SAFER, safer) \ |
| 207 | E(SAFERSK, safersk) \ |
| 208 | E(RIJNDAEL, rijndael) \ |
| 209 | E(SERPENT, serpent) |
| 210 | |
| 211 | #define HASHES \ |
| 212 | E(MD2, md2) \ |
| 213 | E(MD4, md4) \ |
| 214 | E(MD5, md5) \ |
| 215 | E(SHA, sha) \ |
| 216 | E(TIGER, tiger) \ |
| 217 | E(RMD128, rmd128) \ |
| 218 | E(RMD160, rmd160) \ |
| 219 | E(RMD256, rmd256) \ |
| 220 | E(RMD320, rmd320) |
| 221 | |
| 222 | #define E(PRE, pre) CIPHER_##PRE, |
| 223 | enum { CIPHERS CIPHER__bogus }; |
| 224 | #undef E |
| 225 | |
| 226 | #define E(PRE, pre) HASH_##PRE, |
| 227 | enum { HASHES HASH__bogus }; |
| 228 | #undef E |
| 229 | |
| 230 | static struct { |
| 231 | const octet *keysz; |
| 232 | size_t blksz; |
| 233 | grand *(*ofb)(const void */*k*/, size_t /*sz*/); |
| 234 | grand *(*counter)(const void */*k*/, size_t /*sz*/); |
| 235 | } ciphertab[] = { |
| 236 | #define E(PRE, pre) \ |
| 237 | { pre##_keysz, PRE##_BLKSZ, pre##_ofbrand, pre##_counterrand }, |
| 238 | CIPHERS |
| 239 | #undef E |
| 240 | }; |
| 241 | |
| 242 | static struct { |
| 243 | const gchash *h; |
| 244 | const octet *keysz; |
| 245 | grand *(*mgf)(const void */*k*/, size_t /*sz*/); |
| 246 | } hashtab[] = { |
| 247 | #define E(PRE, pre) \ |
| 248 | { &pre, pre##_mgfkeysz, pre##_mgfrand }, |
| 249 | HASHES |
| 250 | #undef E |
| 251 | }; |
| 252 | |
| 253 | /*----- Miscellaneous static data -----------------------------------------*/ |
| 254 | |
| 255 | static FILE *outfp; |
| 256 | static size_t outsz = 0; |
| 257 | static unsigned maurer_lo = 5, maurer_hi = 8; |
| 258 | |
| 259 | static int argc; |
| 260 | static char **argv; |
| 261 | |
| 262 | static unsigned flags = 0; |
| 263 | |
| 264 | #define f_progress 1u |
| 265 | #define f_file 2u |
| 266 | #define f_fips 4u |
| 267 | #define f_maurer 8u |
| 268 | #define f_timer 16u |
| 269 | #define f_discard 32u |
| 270 | |
| 271 | /*----- Help options ------------------------------------------------------*/ |
| 272 | |
| 273 | static void usage(FILE *fp) |
| 274 | { |
| 275 | pquis(fp, "Usage: $ generator [options]\n"); |
| 276 | } |
| 277 | |
| 278 | static void version(FILE *fp) |
| 279 | { |
| 280 | pquis(fp, "$, Catacomb version " VERSION "\n"); |
| 281 | } |
| 282 | |
| 283 | static void help(FILE *fp) |
| 284 | { |
| 285 | version(fp); |
| 286 | fputc('\n', fp); |
| 287 | usage(fp); |
| 288 | pquis(fp, "\n\ |
| 289 | Emits a stream of random bytes suitable for, well, all sorts of things.\n\ |
| 290 | The primary objective is to be able to generate streams of input for\n\ |
| 291 | statistical tests, such as Diehard.\n\ |
| 292 | \n\ |
| 293 | Options are specific to the particular generator, although there's a\n\ |
| 294 | common core set:\n\ |
| 295 | \n\ |
| 296 | -h, --help Display this help message.\n\ |
| 297 | -v, --version Display the program's version number.\n\ |
| 298 | -u, --usage Display a useless usage message.\n\ |
| 299 | \n\ |
| 300 | -l, --list Show a list of the supported generators, with\n\ |
| 301 | their options.\n\ |
| 302 | -f, --fipstest Run the FIPS 140-1 randomness test.\n\ |
| 303 | -m, --maurer[=LO-HI] Run Maurer's universal statistical test.\n\ |
| 304 | -o, --output FILE Write output to FILE, not stdout.\n\ |
| 305 | -z, --size SIZE Emit SIZE bytes, not an unlimited number.\n\ |
| 306 | -p, --progress Show a little progress meter (on stderr).\n\ |
| 307 | -T, --timer Keep track of the CPU time used by the generator.\n\ |
| 308 | -d, --discard Discard the generated output.\n\ |
| 309 | \n\ |
| 310 | (A SIZE may be followed by `g' for gigabytes, `m' for megabytes, or\n\ |
| 311 | `k' for kilobytes. If unqualified, an amount in bytes is assumed.)\n\ |
| 312 | "); |
| 313 | } |
| 314 | |
| 315 | /*----- Main options parser -----------------------------------------------*/ |
| 316 | |
| 317 | static struct option opts[] = { |
| 318 | |
| 319 | /* --- Standard GNU help options --- */ |
| 320 | |
| 321 | { "help", 0, 0, 'h' }, |
| 322 | { "version", 0, 0, 'v' }, |
| 323 | { "usage", 0, 0, 'u' }, |
| 324 | |
| 325 | /* --- Other useful things --- */ |
| 326 | |
| 327 | { "list", 0, 0, 'l' }, |
| 328 | { "fipstest", 0, 0, 'f' }, |
| 329 | { "maurer", OPTF_ARGOPT, 0, 'm' }, |
| 330 | { "output", OPTF_ARGREQ, 0, 'o' }, |
| 331 | { "size", OPTF_ARGREQ, 0, 'z' }, |
| 332 | { "progress", 0, 0, 'p' }, |
| 333 | { "timer", 0, 0, 'T' }, |
| 334 | { "discard", 0, 0, 'd' }, |
| 335 | |
| 336 | /* --- End of main table --- */ |
| 337 | |
| 338 | { 0, 0, 0, 0 } |
| 339 | }; |
| 340 | |
| 341 | static const char *sopts = "hvu lfm::o:z:pTd"; |
| 342 | |
| 343 | #ifndef OPTION_V |
| 344 | DA_DECL(option_v, struct option); |
| 345 | # define OPTION_V |
| 346 | #endif |
| 347 | |
| 348 | static option_v optv = DA_INIT; |
| 349 | static dstr optd = DSTR_INIT; |
| 350 | |
| 351 | /* --- @addopts@ --- * |
| 352 | * |
| 353 | * Arguments: @const char *s@ = pointer to short options |
| 354 | * @struct option *l@ = pointer to long options |
| 355 | * |
| 356 | * Returns: --- |
| 357 | * |
| 358 | * Use: Adds a collection of options to the table. |
| 359 | */ |
| 360 | |
| 361 | static void addopts(const char *s, struct option *l) |
| 362 | { |
| 363 | dstr_puts(&optd, s); |
| 364 | if (DA_LEN(&optv)) |
| 365 | DA_SHRINK(&optv, 1); |
| 366 | while (l->name) |
| 367 | DA_PUSH(&optv, *l++); |
| 368 | DA_PUSH(&optv, *l); |
| 369 | } |
| 370 | |
| 371 | /* --- @opt@ --- * |
| 372 | * |
| 373 | * Arguments: --- |
| 374 | * |
| 375 | * Returns: Next option from argument array. |
| 376 | * |
| 377 | * Use: Fetches options, handling the standard ones. |
| 378 | */ |
| 379 | |
| 380 | static int opt(void) |
| 381 | { |
| 382 | for (;;) { |
| 383 | int i = mdwopt(argc, argv, optd.buf, DA(&optv), 0, 0, 0); |
| 384 | switch (i) { |
| 385 | case 'h': |
| 386 | help(stdout); |
| 387 | exit(0); |
| 388 | case 'v': |
| 389 | version(stdout); |
| 390 | exit(0); |
| 391 | case 'u': |
| 392 | usage(stdout); |
| 393 | exit(0); |
| 394 | case 'l': { |
| 395 | gen *g; |
| 396 | puts("Generators supported:"); |
| 397 | for (g = generators; g->name; g++) |
| 398 | printf(" %s %s\n", g->name, g->help); |
| 399 | exit(0); |
| 400 | } break; |
| 401 | case 'f': |
| 402 | flags |= f_fips; |
| 403 | break; |
| 404 | case 'm': |
| 405 | flags |= f_maurer; |
| 406 | if (optarg) { |
| 407 | char *p; |
| 408 | unsigned long lo, hi; |
| 409 | lo = strtoul(optarg, &p, 0); |
| 410 | if (*p == '-' || *p == ',') |
| 411 | hi = strtoul(p + 1, &p, 0); |
| 412 | else |
| 413 | hi = lo; |
| 414 | if (*p != 0 || hi < lo || lo == 0) |
| 415 | die(EXIT_FAILURE, "bad bit range `%s'", optarg); |
| 416 | maurer_lo = lo; |
| 417 | maurer_hi = hi; |
| 418 | } |
| 419 | break; |
| 420 | case 'o': |
| 421 | if (flags & f_file) |
| 422 | die(EXIT_FAILURE, "already set an output file"); |
| 423 | if (strcmp(optarg, "-") == 0) |
| 424 | outfp = stdout; |
| 425 | else { |
| 426 | outfp = fopen(optarg, "w"); |
| 427 | if (!outfp) { |
| 428 | die(EXIT_FAILURE, "couldn't open output file `%s': %s", |
| 429 | optarg, strerror(errno)); |
| 430 | } |
| 431 | } |
| 432 | flags |= f_file; |
| 433 | break; |
| 434 | case 'z': { |
| 435 | char *p; |
| 436 | outsz = strtoul(optarg, &p, 0); |
| 437 | if (!outsz) |
| 438 | die(EXIT_FAILURE, "bad number `%s'", optarg); |
| 439 | switch (*p) { |
| 440 | case 'G': case 'g': outsz *= 1024; |
| 441 | case 'M': case 'm': outsz *= 1024; |
| 442 | case 'K': case 'k': outsz *= 1024; |
| 443 | case 0: |
| 444 | break; |
| 445 | default: |
| 446 | die(EXIT_FAILURE, "bad suffix `%s'", p); |
| 447 | break; |
| 448 | } |
| 449 | if (*p && p[1] != 0) |
| 450 | die(EXIT_FAILURE, "bad suffix `%s'", p); |
| 451 | } break; |
| 452 | case 'p': |
| 453 | flags |= f_progress; |
| 454 | break; |
| 455 | case 'T': |
| 456 | flags |= f_timer; |
| 457 | break; |
| 458 | case 'd': |
| 459 | flags |= f_discard; |
| 460 | break; |
| 461 | default: |
| 462 | return (i); |
| 463 | } |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | /*----- Manglers for seed strings -----------------------------------------*/ |
| 468 | |
| 469 | /* --- @unhex@ --- * |
| 470 | * |
| 471 | * Arguments: @const char *p@ = pointer to input string |
| 472 | * @char **end@ = where the end goes |
| 473 | * @dstr *d@ = output buffer |
| 474 | * |
| 475 | * Returns: --- |
| 476 | * |
| 477 | * Use: Transforms a hex string into a chunk of binary data. |
| 478 | */ |
| 479 | |
| 480 | static void unhex(const char *p, char **end, dstr *d) |
| 481 | { |
| 482 | while (p[0] && p[1]) { |
| 483 | int x = p[0], y = p[1]; |
| 484 | if ('0' <= x && x <= '9') x -= '0'; |
| 485 | else if ('A' <= x && x <= 'F') x -= 'A' - 10; |
| 486 | else if ('a' <= x && x <= 'f') x -= 'a' - 10; |
| 487 | else x = 0; |
| 488 | if ('0' <= y && y <= '9') y -= '0'; |
| 489 | else if ('A' <= y && y <= 'F') y -= 'A' - 10; |
| 490 | else if ('a' <= y && y <= 'f') y -= 'a' - 10; |
| 491 | else y = 0; |
| 492 | DPUTC(d, (x << 4) + y); |
| 493 | p += 2; |
| 494 | } |
| 495 | *end = (char *)p; |
| 496 | } |
| 497 | |
| 498 | /* --- Generate a key --- */ |
| 499 | |
| 500 | static void textkey(dstr *d, const char *p, const octet *ksz) |
| 501 | { |
| 502 | size_t sz = strlen(p); |
| 503 | |
| 504 | if (!sz) |
| 505 | die(EXIT_FAILURE, "zero-length key string"); |
| 506 | if (keysz(sz, ksz) != sz) |
| 507 | DPUTM(d, p, sz); |
| 508 | else { |
| 509 | rmd160_mgfctx g; |
| 510 | rmd160_mgfinit(&g, p, sz); |
| 511 | sz = keysz(0, ksz); |
| 512 | dstr_ensure(d, sz); |
| 513 | rmd160_mgfencrypt(&g, 0, d->buf, sz); |
| 514 | d->len += sz; |
| 515 | } |
| 516 | assert(((void)"I can't seem to choose a good key size", |
| 517 | keysz(d->len, ksz) == d->len)); |
| 518 | } |
| 519 | |
| 520 | static void hexkey(dstr *d, const char *p, const octet *ksz) |
| 521 | { |
| 522 | char *q; |
| 523 | unhex(optarg, &q, d); |
| 524 | if (*q) |
| 525 | die(EXIT_FAILURE, "bad hex key `%s'", p); |
| 526 | if (keysz(d->len, ksz) != d->len) |
| 527 | die(EXIT_FAILURE, "bad key length"); |
| 528 | } |
| 529 | |
| 530 | static void randkey(dstr *d, const octet *ksz) |
| 531 | { |
| 532 | size_t sz = keysz(0, ksz); |
| 533 | dstr_ensure(d, sz); |
| 534 | rand_get(RAND_GLOBAL, d->buf, sz); |
| 535 | d->len += sz; |
| 536 | } |
| 537 | |
| 538 | /*----- Generators --------------------------------------------------------*/ |
| 539 | |
| 540 | /* --- Blum-Blum-Shub strong generator --- */ |
| 541 | |
| 542 | static grand *gen_bbs(unsigned i) |
| 543 | { |
| 544 | /* --- Default modulus --- * |
| 545 | * |
| 546 | * The factors of this number are |
| 547 | * |
| 548 | * @p = 1229936431484295969649886203367009966370895964206162032259292413@ |
| 549 | * @7754313537966036459299022912838407755462506416274551744201653277@ |
| 550 | * @313130311731673973886822067@ |
| 551 | * |
| 552 | * @q = 9798171783943489959487301695884963889684294764514008432498259742@ |
| 553 | * @5374320073594018817245784145742769603334292182227671519041431067@ |
| 554 | * @61344781426317516045890159@ |
| 555 | * |
| 556 | * Both %$p$% and %$q$% are prime; %$(p - 1)/2$% and %$(q - 1)/2$% have no |
| 557 | * common factors. They were found using this program, with random |
| 558 | * starting points. |
| 559 | * |
| 560 | * I hope that, by publishing these factors, I'll dissuade people from |
| 561 | * actually using this modulus in an attempt to attain real security. The |
| 562 | * program is quite quick at finding Blum numbers, so there's no excuse for |
| 563 | * not generating your own. |
| 564 | */ |
| 565 | |
| 566 | const char *mt = |
| 567 | "120511284390135742513572142094334711443073194119732569353820828435640527418092392240366088035509890969913081816369160298961490135716255689660470370755013177656905237112577648090277537209936078171554274553448103698084782669252936352843649980105109850503830397166360721262431179505917248447259735253684659338653"; |
| 568 | |
| 569 | /* --- Other things --- */ |
| 570 | |
| 571 | grand *r; |
| 572 | const char *xt = 0; |
| 573 | unsigned bits = 1024; |
| 574 | mp *m, *x; |
| 575 | unsigned show = 0; |
| 576 | const char *kfile = 0, *id = 0, *ktype = 0; |
| 577 | |
| 578 | /* --- Parse options --- */ |
| 579 | |
| 580 | static struct option opts[] = { |
| 581 | { "modulus", OPTF_ARGREQ, 0, 'M' }, |
| 582 | { "generate", 0, 0, 'g' }, |
| 583 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 584 | { "bits", OPTF_ARGREQ, 0, 'b' }, |
| 585 | { "show", 0, 0, 'S' }, |
| 586 | { "keyring", OPTF_ARGREQ, 0, 'k' }, |
| 587 | { "id", OPTF_ARGREQ, 0, 'i' }, |
| 588 | { "type", OPTF_ARGREQ, 0, 't' }, |
| 589 | { 0, 0, 0, 0 } |
| 590 | }; |
| 591 | |
| 592 | addopts("M:gs:b:Sk:i:t:", opts); |
| 593 | |
| 594 | for (;;) { |
| 595 | int o = opt(); |
| 596 | if (o < 0) |
| 597 | break; |
| 598 | switch (o) { |
| 599 | case 'M': |
| 600 | mt = optarg; |
| 601 | break; |
| 602 | case 'g': |
| 603 | mt = 0; |
| 604 | break; |
| 605 | case 's': |
| 606 | xt = optarg; |
| 607 | break; |
| 608 | case 'b': |
| 609 | bits = strtoul(optarg, 0, 0); |
| 610 | if (bits == 0) |
| 611 | die(EXIT_FAILURE, "bad number of bits `%s'", optarg); |
| 612 | break; |
| 613 | case 'S': |
| 614 | show = 1; |
| 615 | break; |
| 616 | case 'k': |
| 617 | kfile = optarg; |
| 618 | mt = 0; |
| 619 | break; |
| 620 | case 'i': |
| 621 | id = optarg; |
| 622 | mt = 0; |
| 623 | break; |
| 624 | case 't': |
| 625 | ktype = optarg; |
| 626 | mt = 0; |
| 627 | break; |
| 628 | default: |
| 629 | return (0); |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | /* --- Generate a modulus if one is requested --- */ |
| 634 | |
| 635 | if (mt) { |
| 636 | char *p; |
| 637 | m = mp_readstring(MP_NEW, mt, &p, 0); |
| 638 | if (!m || *p || (m->v[0] & 3) != 1) |
| 639 | die(EXIT_FAILURE, "bad modulus `%s'", mt); |
| 640 | /* Unfortunately I don't know how to test for a Blum integer */ |
| 641 | } else if (kfile || id || ktype) { |
| 642 | key_file kf; |
| 643 | key *kk; |
| 644 | key_data *kd; |
| 645 | |
| 646 | /* --- Open the key file --- */ |
| 647 | |
| 648 | if (!kfile) |
| 649 | kfile = "keyring"; |
| 650 | if (key_open(&kf, kfile, KOPEN_READ, key_moan, 0)) { |
| 651 | die(EXIT_FAILURE, "error opening key file `%s': %s", |
| 652 | kfile, strerror(errno)); |
| 653 | } |
| 654 | |
| 655 | /* --- Find the key --- */ |
| 656 | |
| 657 | if (id) { |
| 658 | if ((kk = key_bytag(&kf, id)) == 0) |
| 659 | die(EXIT_FAILURE, "key `%s' not found", id); |
| 660 | } else { |
| 661 | if (!ktype) |
| 662 | ktype = "bbs"; |
| 663 | if ((kk = key_bytype(&kf, ktype)) == 0) |
| 664 | die(EXIT_FAILURE, "no suitable key with type `%s' found", ktype); |
| 665 | } |
| 666 | |
| 667 | /* --- Read the key data --- */ |
| 668 | |
| 669 | if ((kk->k.e & KF_ENCMASK) != KENC_STRUCT) |
| 670 | die(EXIT_FAILURE, "key is not structured"); |
| 671 | if ((kd = key_structfind(&kk->k, "n")) == 0) |
| 672 | die(EXIT_FAILURE, "key has no subkey `n'"); |
| 673 | if ((kd->e & KF_ENCMASK) != KENC_MP) |
| 674 | die(EXIT_FAILURE, "incomatible subkey encoding"); |
| 675 | m = MP_COPY(kd->u.m); |
| 676 | key_close(&kf); |
| 677 | } else { |
| 678 | bbs_priv bp; |
| 679 | |
| 680 | if (bbs_gen(&bp, bits, &rand_global, 0, |
| 681 | (flags & f_progress) ? pgen_ev : 0, 0)) |
| 682 | die(EXIT_FAILURE, "modulus generation failed"); |
| 683 | m = bp.n; |
| 684 | |
| 685 | if (show) { |
| 686 | fputs("p = ", stderr); |
| 687 | mp_writefile(bp.p, stderr, 10); |
| 688 | fputs("\nq = ", stderr); |
| 689 | mp_writefile(bp.q, stderr, 10); |
| 690 | fputs("\nn = ", stderr); |
| 691 | mp_writefile(bp.n, stderr, 10); |
| 692 | fputc('\n', stderr); |
| 693 | } |
| 694 | |
| 695 | mp_drop(bp.p); |
| 696 | mp_drop(bp.q); |
| 697 | } |
| 698 | |
| 699 | /* --- Set up a seed --- */ |
| 700 | |
| 701 | if (!xt) |
| 702 | x = mprand(MP_NEW, mp_bits(m) - 1, &rand_global, 1); |
| 703 | else { |
| 704 | char *p; |
| 705 | x = mp_readstring(MP_NEW, xt, &p, 0); |
| 706 | if (*p) |
| 707 | die(EXIT_FAILURE, "bad modulus `%s'", xt); |
| 708 | } |
| 709 | |
| 710 | /* --- Right --- */ |
| 711 | |
| 712 | r = bbs_rand(m, x); |
| 713 | |
| 714 | mp_drop(m); |
| 715 | mp_drop(x); |
| 716 | return (r); |
| 717 | } |
| 718 | |
| 719 | /* --- Catacomb's random number generator --- */ |
| 720 | |
| 721 | static grand *gen_rand(unsigned i) |
| 722 | { |
| 723 | grand *r = rand_create(); |
| 724 | dstr d = DSTR_INIT; |
| 725 | |
| 726 | static struct option opts[] = { |
| 727 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 728 | { "text", OPTF_ARGREQ, 0, 't' }, |
| 729 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 730 | { 0, 0, 0, 0 } |
| 731 | }; |
| 732 | |
| 733 | addopts("k:t:H:n", opts); |
| 734 | |
| 735 | r->ops->misc(r, RAND_NOISESRC, &noise_source); |
| 736 | r->ops->misc(r, RAND_SEED, 160); |
| 737 | |
| 738 | for (;;) { |
| 739 | int o = opt(); |
| 740 | if (o < 0) |
| 741 | break; |
| 742 | switch (o) { |
| 743 | case 'k': |
| 744 | DRESET(&d); |
| 745 | textkey(&d, optarg, rmd160_hmackeysz); |
| 746 | r->ops->misc(r, RAND_KEY, d.buf, d.len); |
| 747 | break; |
| 748 | case 't': |
| 749 | r->ops->misc(r, GRAND_SEEDBLOCK, optarg, strlen(optarg)); |
| 750 | break; |
| 751 | case 'H': |
| 752 | DRESET(&d); |
| 753 | hexkey(&d, optarg, rmd160_hmackeysz); |
| 754 | r->ops->misc(r, GRAND_SEEDBLOCK, d.buf, d.len); |
| 755 | break; |
| 756 | } |
| 757 | } |
| 758 | |
| 759 | dstr_destroy(&d); |
| 760 | return (r); |
| 761 | } |
| 762 | |
| 763 | /* --- RC4 output --- */ |
| 764 | |
| 765 | static grand *gen_rc4(unsigned i) |
| 766 | { |
| 767 | grand *r; |
| 768 | dstr d = DSTR_INIT; |
| 769 | |
| 770 | static struct option opts[] = { |
| 771 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 772 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 773 | { 0, 0, 0, 0 } |
| 774 | }; |
| 775 | |
| 776 | addopts("k:H:", opts); |
| 777 | |
| 778 | for (;;) { |
| 779 | int o = opt(); |
| 780 | if (o < 0) |
| 781 | break; |
| 782 | switch (o) { |
| 783 | case 'k': |
| 784 | DRESET(&d); |
| 785 | textkey(&d, optarg, rc4_keysz); |
| 786 | break; |
| 787 | case 'H': |
| 788 | DRESET(&d); |
| 789 | hexkey(&d, optarg, rc4_keysz); |
| 790 | break; |
| 791 | default: |
| 792 | return (0); |
| 793 | } |
| 794 | } |
| 795 | |
| 796 | if (!d.len) |
| 797 | randkey(&d, rc4_keysz); |
| 798 | r = rc4_rand(d.buf, d.len); |
| 799 | dstr_destroy(&d); |
| 800 | return (r); |
| 801 | } |
| 802 | |
| 803 | /* --- SEAL output --- */ |
| 804 | |
| 805 | static grand *gen_seal(unsigned i) |
| 806 | { |
| 807 | grand *r; |
| 808 | dstr d = DSTR_INIT; |
| 809 | uint32 n = 0; |
| 810 | |
| 811 | static struct option opts[] = { |
| 812 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 813 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 814 | { "sequence", OPTF_ARGREQ, 0, 'n' }, |
| 815 | { 0, 0, 0, 0 } |
| 816 | }; |
| 817 | |
| 818 | addopts("k:H:n:", opts); |
| 819 | |
| 820 | for (;;) { |
| 821 | int o = opt(); |
| 822 | if (o < 0) |
| 823 | break; |
| 824 | switch (o) { |
| 825 | case 'k': |
| 826 | DRESET(&d); |
| 827 | textkey(&d, optarg, seal_keysz); |
| 828 | break; |
| 829 | case 'H': |
| 830 | DRESET(&d); |
| 831 | hexkey(&d, optarg, seal_keysz); |
| 832 | break; |
| 833 | case 'n': { |
| 834 | char *p; |
| 835 | n = strtoul(optarg, &p, 0); |
| 836 | if (*p) |
| 837 | die(EXIT_FAILURE, "bad number `%s'", optarg); |
| 838 | } break; |
| 839 | default: |
| 840 | return (0); |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | if (!d.len) |
| 845 | randkey(&d, seal_keysz); |
| 846 | r = seal_rand(d.buf, d.len, n); |
| 847 | dstr_destroy(&d); |
| 848 | return (r); |
| 849 | } |
| 850 | |
| 851 | /* --- Output feedback generators --- */ |
| 852 | |
| 853 | static grand *gen_ofb(unsigned i) |
| 854 | { |
| 855 | grand *r; |
| 856 | dstr d = DSTR_INIT; |
| 857 | dstr iv = DSTR_INIT; |
| 858 | |
| 859 | static struct option opts[] = { |
| 860 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 861 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 862 | { "iv", OPTF_ARGREQ, 0, 'i' }, |
| 863 | { 0, 0, 0, 0 } |
| 864 | }; |
| 865 | |
| 866 | addopts("k:H:i:", opts); |
| 867 | |
| 868 | for (;;) { |
| 869 | int o = opt(); |
| 870 | if (o < 0) |
| 871 | break; |
| 872 | switch (o) { |
| 873 | case 'k': |
| 874 | DRESET(&d); |
| 875 | textkey(&d, optarg, ciphertab[i].keysz); |
| 876 | break; |
| 877 | case 'H': |
| 878 | DRESET(&d); |
| 879 | hexkey(&d, optarg, ciphertab[i].keysz); |
| 880 | break; |
| 881 | case 'i': { |
| 882 | char *p; |
| 883 | unhex(optarg, &p, &iv); |
| 884 | if (*p) |
| 885 | die(EXIT_FAILURE, "bad hex IV `%s'", optarg); |
| 886 | } break; |
| 887 | default: |
| 888 | return (0); |
| 889 | } |
| 890 | } |
| 891 | |
| 892 | if (!d.len) |
| 893 | randkey(&d, ciphertab[i].keysz); |
| 894 | r = ciphertab[i].ofb(d.buf, d.len); |
| 895 | if (iv.len) { |
| 896 | if (iv.len != ciphertab[i].blksz) { |
| 897 | die(EXIT_FAILURE, "bad IV length %lu (must be %lu)", |
| 898 | (unsigned long)iv.len, (unsigned long)ciphertab[i].blksz); |
| 899 | } |
| 900 | r->ops->misc(r, GRAND_SEEDBLOCK, iv.buf); |
| 901 | } |
| 902 | |
| 903 | dstr_destroy(&d); |
| 904 | dstr_destroy(&iv); |
| 905 | return (r); |
| 906 | } |
| 907 | |
| 908 | /* --- Counter generators --- */ |
| 909 | |
| 910 | static grand *gen_counter(unsigned i) |
| 911 | { |
| 912 | grand *r; |
| 913 | dstr d = DSTR_INIT; |
| 914 | dstr iv = DSTR_INIT; |
| 915 | |
| 916 | static struct option opts[] = { |
| 917 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 918 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 919 | { "iv", OPTF_ARGREQ, 0, 'i' }, |
| 920 | { 0, 0, 0, 0 } |
| 921 | }; |
| 922 | |
| 923 | addopts("k:H:i:", opts); |
| 924 | |
| 925 | for (;;) { |
| 926 | int o = opt(); |
| 927 | if (o < 0) |
| 928 | break; |
| 929 | switch (o) { |
| 930 | case 'k': |
| 931 | DRESET(&d); |
| 932 | textkey(&d, optarg, ciphertab[i].keysz); |
| 933 | break; |
| 934 | case 'H': |
| 935 | DRESET(&d); |
| 936 | hexkey(&d, optarg, ciphertab[i].keysz); |
| 937 | break; |
| 938 | case 'i': { |
| 939 | char *p; |
| 940 | unhex(optarg, &p, &iv); |
| 941 | if (*p) |
| 942 | die(EXIT_FAILURE, "bad hex IV `%s'", optarg); |
| 943 | } break; |
| 944 | default: |
| 945 | return (0); |
| 946 | } |
| 947 | } |
| 948 | |
| 949 | if (!d.len) |
| 950 | randkey(&d, ciphertab[i].keysz); |
| 951 | r = ciphertab[i].counter(d.buf, d.len); |
| 952 | if (iv.len) { |
| 953 | if (iv.len != ciphertab[i].blksz) { |
| 954 | die(EXIT_FAILURE, "bad IV length %lu (must be %lu)", |
| 955 | (unsigned long)iv.len, (unsigned long)ciphertab[i].blksz); |
| 956 | } |
| 957 | r->ops->misc(r, GRAND_SEEDBLOCK, iv.buf); |
| 958 | } |
| 959 | |
| 960 | dstr_destroy(&d); |
| 961 | dstr_destroy(&iv); |
| 962 | return (r); |
| 963 | } |
| 964 | |
| 965 | /* --- Mask generators --- */ |
| 966 | |
| 967 | static grand *gen_mgf(unsigned i) |
| 968 | { |
| 969 | grand *r; |
| 970 | dstr d = DSTR_INIT; |
| 971 | uint32 c = 0; |
| 972 | |
| 973 | static struct option opts[] = { |
| 974 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 975 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 976 | { "index", OPTF_ARGREQ, 0, 'i' }, |
| 977 | { 0, 0, 0, 0 } |
| 978 | }; |
| 979 | |
| 980 | addopts("k:H:i:", opts); |
| 981 | |
| 982 | for (;;) { |
| 983 | int o = opt(); |
| 984 | if (o < 0) |
| 985 | break; |
| 986 | switch (o) { |
| 987 | case 'k': |
| 988 | DRESET(&d); |
| 989 | textkey(&d, optarg, hashtab[i].keysz); |
| 990 | break; |
| 991 | case 'H': |
| 992 | DRESET(&d); |
| 993 | hexkey(&d, optarg, hashtab[i].keysz); |
| 994 | break; |
| 995 | case 'i': { |
| 996 | char *p; |
| 997 | c = strtoul(optarg, &p, 0); |
| 998 | if (*p) |
| 999 | die(EXIT_FAILURE, "bad index `%s'", optarg); |
| 1000 | } break; |
| 1001 | default: |
| 1002 | return (0); |
| 1003 | } |
| 1004 | } |
| 1005 | |
| 1006 | if (!d.len) |
| 1007 | randkey(&d, hashtab[i].keysz); |
| 1008 | |
| 1009 | r = hashtab[i].mgf(d.buf, d.len); |
| 1010 | if (c) |
| 1011 | r->ops->misc(r, GRAND_SEEDUINT32, c); |
| 1012 | |
| 1013 | dstr_destroy(&d); |
| 1014 | return (r); |
| 1015 | } |
| 1016 | |
| 1017 | /* --- Fibonacci generator --- */ |
| 1018 | |
| 1019 | static grand *gen_fib(unsigned i) |
| 1020 | { |
| 1021 | grand *r; |
| 1022 | uint32 s = 0; |
| 1023 | char *p; |
| 1024 | unsigned set = 0; |
| 1025 | |
| 1026 | static struct option opts[] = { |
| 1027 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 1028 | { 0, 0, 0, 0 } |
| 1029 | }; |
| 1030 | |
| 1031 | addopts("s:", opts); |
| 1032 | |
| 1033 | for (;;) { |
| 1034 | int o = opt(); |
| 1035 | if (o < 0) |
| 1036 | break; |
| 1037 | switch (o) { |
| 1038 | case 's': |
| 1039 | s = strtoul(optarg, &p, 0); |
| 1040 | if (*p) |
| 1041 | die(EXIT_FAILURE, "bad integer `%s'", optarg); |
| 1042 | set = 1; |
| 1043 | break; |
| 1044 | default: |
| 1045 | return (0); |
| 1046 | } |
| 1047 | } |
| 1048 | r = fibrand_create(s); |
| 1049 | if (!set) |
| 1050 | r->ops->misc(r, GRAND_SEEDRAND, &rand_global); |
| 1051 | return (r); |
| 1052 | } |
| 1053 | |
| 1054 | /* --- LC generator --- */ |
| 1055 | |
| 1056 | static grand *gen_lc(unsigned i) |
| 1057 | { |
| 1058 | uint32 s = 0; |
| 1059 | char *p; |
| 1060 | unsigned set = 0; |
| 1061 | |
| 1062 | static struct option opts[] = { |
| 1063 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 1064 | { 0, 0, 0, 0 } |
| 1065 | }; |
| 1066 | |
| 1067 | addopts("s:", opts); |
| 1068 | |
| 1069 | for (;;) { |
| 1070 | int o = opt(); |
| 1071 | if (o < 0) |
| 1072 | break; |
| 1073 | switch (o) { |
| 1074 | case 's': |
| 1075 | s = strtoul(optarg, &p, 0); |
| 1076 | if (*p) |
| 1077 | die(EXIT_FAILURE, "bad integer `%s'", optarg); |
| 1078 | set = 1; |
| 1079 | break; |
| 1080 | default: |
| 1081 | return (0); |
| 1082 | } |
| 1083 | } |
| 1084 | if (!set) { |
| 1085 | do |
| 1086 | s = rand_global.ops->range(&rand_global, LCRAND_P); |
| 1087 | while (s == LCRAND_FIXEDPT); |
| 1088 | } |
| 1089 | return (lcrand_create(s)); |
| 1090 | } |
| 1091 | |
| 1092 | /* --- Basic options parser -- can't generate output --- */ |
| 1093 | |
| 1094 | static grand *gen_opts(unsigned i) |
| 1095 | { |
| 1096 | while (opt() >= 0) |
| 1097 | ; |
| 1098 | return (0); |
| 1099 | } |
| 1100 | |
| 1101 | /*----- Generators table --------------------------------------------------*/ |
| 1102 | |
| 1103 | gen generators[] = { |
| 1104 | { "fibonacci", gen_fib, 0, |
| 1105 | "[-s SEED]" }, |
| 1106 | { "lc", gen_lc, 0, |
| 1107 | "[-s SEED]" }, |
| 1108 | #define E(PRE, pre) \ |
| 1109 | { #pre "-ofb", gen_ofb, CIPHER_##PRE, \ |
| 1110 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i HEX-IV]" }, |
| 1111 | CIPHERS |
| 1112 | #undef E |
| 1113 | #define E(PRE, pre) \ |
| 1114 | { #pre "-counter", gen_counter, CIPHER_##PRE, \ |
| 1115 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i HEX-IV]" }, |
| 1116 | CIPHERS |
| 1117 | #undef E |
| 1118 | #define E(PRE, pre) \ |
| 1119 | { #pre "-mgf", gen_mgf, HASH_##PRE, \ |
| 1120 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i INDEX]" }, |
| 1121 | HASHES |
| 1122 | #undef E |
| 1123 | { "rc4", gen_rc4, 0, |
| 1124 | "[-k KEY-PHRASE] [-H HEX-KEY]" }, |
| 1125 | { "seal", gen_seal, 0, |
| 1126 | "[-k KEY-PHRASE] [-H HEX-KEY] [-n SEQ]" }, |
| 1127 | { "rand", gen_rand, 0, |
| 1128 | "[-n] [-k KEY-PHRASE] [-t TEXT-BLOCK] [-H HEX-BLOCK]" }, |
| 1129 | { "bbs", gen_bbs, 0, |
| 1130 | "[-gS] [-s SEED] [-M MODULUS] [-b BITS] [-k KEYRING] [-i TAG] [-t TYPE]" |
| 1131 | }, |
| 1132 | { 0, 0, 0, 0 }, |
| 1133 | }; |
| 1134 | |
| 1135 | static gen optsg = { "options", gen_opts, 0, |
| 1136 | "This message shouldn't be printed." }; |
| 1137 | |
| 1138 | /*----- Random number generation ------------------------------------------*/ |
| 1139 | |
| 1140 | static int genfile(const void *buf, size_t sz, void *p) |
| 1141 | { |
| 1142 | FILE *fp = p; |
| 1143 | if (fwrite(buf, 1, sz, fp) != sz) |
| 1144 | die(EXIT_FAILURE, "error writing to file: %s", strerror(errno)); |
| 1145 | return (0); |
| 1146 | } |
| 1147 | |
| 1148 | static int genbuf(const void *buf, size_t sz, void *p) |
| 1149 | { |
| 1150 | octet **pp = p; |
| 1151 | memcpy(*pp, buf, sz); |
| 1152 | *pp += sz; |
| 1153 | return (0); |
| 1154 | } |
| 1155 | |
| 1156 | typedef struct genmaurer_ctx { |
| 1157 | size_t n; |
| 1158 | maurer_ctx *m; |
| 1159 | } genmaurer_ctx; |
| 1160 | |
| 1161 | static int genmaurer(const void *buf, size_t sz, void *p) |
| 1162 | { |
| 1163 | genmaurer_ctx *g = p; |
| 1164 | size_t i; |
| 1165 | |
| 1166 | for (i = 0; i < g->n; i++) |
| 1167 | maurer_test(&g->m[i], buf, sz); |
| 1168 | return (0); |
| 1169 | } |
| 1170 | |
| 1171 | static int generate(grand *r, size_t outsz, |
| 1172 | int (*func)(const void *buf, size_t sz, void *p), |
| 1173 | void *p) |
| 1174 | { |
| 1175 | static char kmg[] = { ' ', 'k', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y', 0 }; |
| 1176 | |
| 1177 | unsigned percent = 0; |
| 1178 | size_t kb = 0; |
| 1179 | time_t last; |
| 1180 | static char baton[] = "-\\|/"; |
| 1181 | char *bp; |
| 1182 | int rc; |
| 1183 | clock_t clk = 0; |
| 1184 | |
| 1185 | /* --- Spit out random data --- */ |
| 1186 | |
| 1187 | last = time(0); |
| 1188 | bp = baton; |
| 1189 | if (flags & f_progress) { |
| 1190 | char *errbuf = xmalloc(BUFSIZ); |
| 1191 | setvbuf(stderr, errbuf, _IOLBF, BUFSIZ); |
| 1192 | if (outsz) |
| 1193 | fprintf(stderr, "[%*s] 0%% 0\r[/\b", 50, ""); |
| 1194 | else |
| 1195 | fputs("[ ] 0\r[/\b", stderr); |
| 1196 | fflush(stderr); |
| 1197 | } |
| 1198 | |
| 1199 | #ifdef SIGPIPE |
| 1200 | signal(SIGPIPE, SIG_IGN); |
| 1201 | #endif |
| 1202 | |
| 1203 | do { |
| 1204 | octet buf[BUFSIZ]; |
| 1205 | size_t sz = sizeof(buf); |
| 1206 | clock_t c_start, c_stop; |
| 1207 | |
| 1208 | /* --- Emit a bufferful (or less) of data --- */ |
| 1209 | |
| 1210 | if (outsz) { |
| 1211 | if (sz > outsz - kb) |
| 1212 | sz = outsz - kb; |
| 1213 | } |
| 1214 | c_start = clock(); |
| 1215 | r->ops->fill(r, buf, sz); |
| 1216 | c_stop = clock(); |
| 1217 | clk += c_stop - c_start; |
| 1218 | if (func && (rc = func(buf, sz, p)) != 0) |
| 1219 | return (rc); |
| 1220 | kb += sz; |
| 1221 | |
| 1222 | /* --- Update the display --- */ |
| 1223 | |
| 1224 | if (flags & f_progress) { |
| 1225 | time_t t = time(0); |
| 1226 | unsigned up = 0; |
| 1227 | |
| 1228 | if (percent > 100) |
| 1229 | up = 1; |
| 1230 | |
| 1231 | if (!outsz) { |
| 1232 | if (difftime(t, last) > 1.0) { |
| 1233 | up = 1; |
| 1234 | } |
| 1235 | if (up) |
| 1236 | fputs(" ] ", stderr); |
| 1237 | } else { |
| 1238 | unsigned pc = kb * 100.0 / outsz; |
| 1239 | if (pc > percent || percent > 100 || difftime(t, last) > 1.0) { |
| 1240 | if (percent > 100) |
| 1241 | percent = 0; |
| 1242 | percent &= ~1; |
| 1243 | for (; percent < (pc & ~1); percent += 2) |
| 1244 | putc('.', stderr); |
| 1245 | percent = pc; |
| 1246 | for (; pc < 100; pc += 2) |
| 1247 | putc(' ', stderr); |
| 1248 | fprintf(stderr, "] %3i%% ", percent); |
| 1249 | up = 1; |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | if (up) { |
| 1254 | size_t q = kb; |
| 1255 | char *kk = kmg; |
| 1256 | while (q > 8192 && kk[1]) { |
| 1257 | q >>= 10; |
| 1258 | kk++; |
| 1259 | } |
| 1260 | fprintf(stderr, "%4i%c\r[", q, *kk); |
| 1261 | if (outsz) { |
| 1262 | unsigned pc; |
| 1263 | for (pc = 0; pc < (percent & ~1); pc += 2) |
| 1264 | putc('.', stderr); |
| 1265 | } |
| 1266 | last = t; |
| 1267 | } |
| 1268 | |
| 1269 | if (percent > 100) |
| 1270 | percent = 0; |
| 1271 | |
| 1272 | if (percent < 100) { |
| 1273 | putc(*bp++, stderr); |
| 1274 | putc('\b', stderr); |
| 1275 | if (!*bp) |
| 1276 | bp = baton; |
| 1277 | } |
| 1278 | fflush(stderr); |
| 1279 | } |
| 1280 | |
| 1281 | /* --- Terminate the loop --- */ |
| 1282 | |
| 1283 | } while (!outsz || kb < outsz); |
| 1284 | |
| 1285 | if (flags & f_progress) |
| 1286 | fputc('\n', stderr); |
| 1287 | if (flags & f_timer) { |
| 1288 | fprintf(stderr, "generated %lu bytes ", (unsigned long)outsz); |
| 1289 | if (!clk) |
| 1290 | fputs("too quickly to measure\n", stderr); |
| 1291 | else { |
| 1292 | char *kk; |
| 1293 | double sec = (double)clk/CLOCKS_PER_SEC; |
| 1294 | double bps = (outsz << 3)/sec; |
| 1295 | for (kk = kmg; bps > 1024 && kk[1]; kk++, bps /= 1024) |
| 1296 | ; |
| 1297 | fprintf(stderr, "in %g secs (%g %cb/s)\n", sec, bps, *kk); |
| 1298 | } |
| 1299 | } |
| 1300 | return (0); |
| 1301 | } |
| 1302 | |
| 1303 | /*----- Main code ---------------------------------------------------------*/ |
| 1304 | |
| 1305 | int main(int ac, char *av[]) |
| 1306 | { |
| 1307 | gen *g = &optsg; |
| 1308 | grand *r; |
| 1309 | |
| 1310 | /* --- Initialize mLib --- */ |
| 1311 | |
| 1312 | ego(av[0]); |
| 1313 | sub_init(); |
| 1314 | |
| 1315 | /* --- Set up the main Catacomb generator --- */ |
| 1316 | |
| 1317 | rand_noisesrc(RAND_GLOBAL, &noise_source); |
| 1318 | rand_seed(RAND_GLOBAL, 160); |
| 1319 | |
| 1320 | /* --- Initialize the options table --- */ |
| 1321 | |
| 1322 | addopts(sopts, opts); |
| 1323 | argc = ac; |
| 1324 | argv = av; |
| 1325 | outfp = stdout; |
| 1326 | |
| 1327 | /* --- Read the generator out of the first argument --- */ |
| 1328 | |
| 1329 | if (argc > 1 && *argv[1] != '-') { |
| 1330 | const char *arg = av[1]; |
| 1331 | size_t sz = strlen(arg); |
| 1332 | gen *gg; |
| 1333 | |
| 1334 | g = 0; |
| 1335 | for (gg = generators; gg->name; gg++) { |
| 1336 | if (strncmp(arg, gg->name, sz) == 0) { |
| 1337 | if (gg->name[sz] == 0) { |
| 1338 | g = gg; |
| 1339 | break; |
| 1340 | } else if (g) |
| 1341 | die(EXIT_FAILURE, "ambiguous generator name `%s'", arg); |
| 1342 | else |
| 1343 | g = gg; |
| 1344 | } |
| 1345 | } |
| 1346 | if (!g) |
| 1347 | die(EXIT_FAILURE, "unknown generator name `%s'", arg); |
| 1348 | argc--; |
| 1349 | argv++; |
| 1350 | } |
| 1351 | |
| 1352 | /* --- Get a generic random number generator --- */ |
| 1353 | |
| 1354 | r = g->seed(g->i); |
| 1355 | if (!r || optind != ac - 1) { |
| 1356 | usage(stderr); |
| 1357 | exit(EXIT_FAILURE); |
| 1358 | } |
| 1359 | |
| 1360 | /* --- Do the FIPS test --- */ |
| 1361 | |
| 1362 | if (flags & f_fips) { |
| 1363 | octet buf[FIPSTEST_BUFSZ]; |
| 1364 | unsigned rc; |
| 1365 | octet *p = buf; |
| 1366 | |
| 1367 | generate(r, sizeof(buf), genbuf, &p); |
| 1368 | rc = fipstest(buf); |
| 1369 | if (rc & FIPSTEST_MONOBIT) |
| 1370 | moan("failed monobit test"); |
| 1371 | if (rc & FIPSTEST_POKER) |
| 1372 | moan("failed poker test"); |
| 1373 | if (rc & FIPSTEST_RUNS) |
| 1374 | moan("failed runs test"); |
| 1375 | if (rc & FIPSTEST_LONGRUNS) |
| 1376 | moan("failed long runs test"); |
| 1377 | if (!rc && (flags & f_progress)) |
| 1378 | fputs("test passed\n", stderr); |
| 1379 | return (rc ? EXIT_FAILURE : 0); |
| 1380 | } |
| 1381 | |
| 1382 | /* --- Do Maurer's test --- */ |
| 1383 | |
| 1384 | if (flags & f_maurer) { |
| 1385 | size_t bufsz; |
| 1386 | unsigned i; |
| 1387 | unsigned rc = 0; |
| 1388 | genmaurer_ctx g; |
| 1389 | |
| 1390 | static struct { double x; const char *sig; } sigtab[] = { |
| 1391 | { 3.2905, "1e-3" }, |
| 1392 | { 3.0902, "2e-3" }, |
| 1393 | { 2.8070, "5e-3" }, |
| 1394 | { 2.5758, "1e-2" }, |
| 1395 | { 0 , 0 } |
| 1396 | }; |
| 1397 | |
| 1398 | g.n = maurer_hi - maurer_lo + 1; |
| 1399 | g.m = xmalloc(g.n * sizeof(maurer_ctx)); |
| 1400 | for (i = 0; i < g.n; i++) |
| 1401 | maurer_init(&g.m[i], i + maurer_lo); |
| 1402 | bufsz = (100 * maurer_hi) << maurer_hi; |
| 1403 | |
| 1404 | generate(r, bufsz, genmaurer, &g); |
| 1405 | |
| 1406 | for (i = maurer_lo; i <= maurer_hi; i++) { |
| 1407 | double z = maurer_done(&g.m[i - maurer_lo]); |
| 1408 | double zz = fabs(z); |
| 1409 | unsigned j; |
| 1410 | |
| 1411 | for (j = 0; sigtab[j].sig; j++) { |
| 1412 | if (zz > sigtab[j].x) { |
| 1413 | rc = EXIT_FAILURE; |
| 1414 | moan("failed, bits = %u, sig = %s, Z_u = %g", |
| 1415 | i, sigtab[j].sig, z); |
| 1416 | break; |
| 1417 | } |
| 1418 | } |
| 1419 | if (flags & f_progress) |
| 1420 | fprintf(stderr, "bits = %u, Z_u = %g\n", i, z); |
| 1421 | } |
| 1422 | |
| 1423 | xfree(g.m); |
| 1424 | return (rc); |
| 1425 | } |
| 1426 | |
| 1427 | /* --- Discard --- */ |
| 1428 | |
| 1429 | if (flags & f_discard) { |
| 1430 | generate(r, outsz, 0, 0); |
| 1431 | return (0); |
| 1432 | } |
| 1433 | |
| 1434 | /* --- Write to a file --- */ |
| 1435 | |
| 1436 | #ifndef PORTABLE |
| 1437 | if (!(flags & f_file) && isatty(STDOUT_FILENO)) |
| 1438 | die(EXIT_FAILURE, "writing output to a terminal is a bad idea"); |
| 1439 | #endif |
| 1440 | |
| 1441 | generate(r, outsz, genfile, outfp); |
| 1442 | |
| 1443 | /* --- Done --- */ |
| 1444 | |
| 1445 | r->ops->destroy(r); |
| 1446 | return (0); |
| 1447 | } |
| 1448 | |
| 1449 | /*----- That's all, folks -------------------------------------------------*/ |