| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * Spit out random numbers |
| 4 | * |
| 5 | * (c) 1999 Straylight/Edgeware |
| 6 | */ |
| 7 | |
| 8 | /*----- Licensing notice --------------------------------------------------* |
| 9 | * |
| 10 | * This file is part of Catacomb. |
| 11 | * |
| 12 | * Catacomb is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU Library General Public License as |
| 14 | * published by the Free Software Foundation; either version 2 of the |
| 15 | * License, or (at your option) any later version. |
| 16 | * |
| 17 | * Catacomb is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU Library General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU Library General Public |
| 23 | * License along with Catacomb; if not, write to the Free |
| 24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 25 | * MA 02111-1307, USA. |
| 26 | */ |
| 27 | |
| 28 | /*----- Header files ------------------------------------------------------*/ |
| 29 | |
| 30 | #include "config.h" |
| 31 | |
| 32 | #include <assert.h> |
| 33 | #include <errno.h> |
| 34 | #include <math.h> |
| 35 | #include <signal.h> |
| 36 | #include <stdio.h> |
| 37 | #include <stdlib.h> |
| 38 | #include <string.h> |
| 39 | #include <time.h> |
| 40 | |
| 41 | #ifndef PORTABLE |
| 42 | # include <unistd.h> |
| 43 | # include <sys/time.h> |
| 44 | #endif |
| 45 | |
| 46 | #include <mLib/darray.h> |
| 47 | #include <mLib/dstr.h> |
| 48 | #include <mLib/mdwopt.h> |
| 49 | #include <mLib/quis.h> |
| 50 | #include <mLib/report.h> |
| 51 | #include <mLib/sub.h> |
| 52 | |
| 53 | #include "mp.h" |
| 54 | #include "mpint.h" |
| 55 | #include "mplimits.h" |
| 56 | #include "mptext.h" |
| 57 | |
| 58 | #include "fipstest.h" |
| 59 | #include "grand.h" |
| 60 | #include "maurer.h" |
| 61 | #include "key.h" |
| 62 | |
| 63 | #include "lcrand.h" |
| 64 | #include "fibrand.h" |
| 65 | #include "rand.h" |
| 66 | #include "noise.h" |
| 67 | |
| 68 | #include "bbs.h" |
| 69 | #include "mprand.h" |
| 70 | |
| 71 | #include "chacha.h" |
| 72 | #include "rc4.h" |
| 73 | #include "salsa20.h" |
| 74 | #include "salsa20-core.h" |
| 75 | #include "seal.h" |
| 76 | |
| 77 | #include "des-ofb.h" |
| 78 | #include "des3-ofb.h" |
| 79 | #include "rc2-ofb.h" |
| 80 | #include "rc5-ofb.h" |
| 81 | #include "mars-ofb.h" |
| 82 | #include "skipjack-ofb.h" |
| 83 | #include "tea-ofb.h" |
| 84 | #include "xtea-ofb.h" |
| 85 | #include "blowfish-ofb.h" |
| 86 | #include "twofish-ofb.h" |
| 87 | #include "idea-ofb.h" |
| 88 | #include "cast128-ofb.h" |
| 89 | #include "cast256-ofb.h" |
| 90 | #include "noekeon-ofb.h" |
| 91 | #include "rijndael-ofb.h" |
| 92 | #include "rijndael192-ofb.h" |
| 93 | #include "rijndael256-ofb.h" |
| 94 | #include "safer-ofb.h" |
| 95 | #include "safersk-ofb.h" |
| 96 | #include "square-ofb.h" |
| 97 | #include "serpent-ofb.h" |
| 98 | |
| 99 | #include "des-counter.h" |
| 100 | #include "des3-counter.h" |
| 101 | #include "rc2-counter.h" |
| 102 | #include "rc5-counter.h" |
| 103 | #include "mars-counter.h" |
| 104 | #include "skipjack-counter.h" |
| 105 | #include "tea-counter.h" |
| 106 | #include "xtea-counter.h" |
| 107 | #include "blowfish-counter.h" |
| 108 | #include "twofish-counter.h" |
| 109 | #include "idea-counter.h" |
| 110 | #include "cast128-counter.h" |
| 111 | #include "cast256-counter.h" |
| 112 | #include "noekeon-counter.h" |
| 113 | #include "rijndael-counter.h" |
| 114 | #include "rijndael192-counter.h" |
| 115 | #include "rijndael256-counter.h" |
| 116 | #include "safer-counter.h" |
| 117 | #include "safersk-counter.h" |
| 118 | #include "square-counter.h" |
| 119 | #include "serpent-counter.h" |
| 120 | |
| 121 | #include "md2-mgf.h" |
| 122 | #include "md4-mgf.h" |
| 123 | #include "md5-mgf.h" |
| 124 | #include "sha-mgf.h" |
| 125 | #include "tiger-mgf.h" |
| 126 | #include "rmd128-mgf.h" |
| 127 | #include "rmd160-mgf.h" |
| 128 | #include "rmd256-mgf.h" |
| 129 | #include "rmd320-mgf.h" |
| 130 | |
| 131 | #include "rmd160.h" |
| 132 | |
| 133 | /*----- Data structures ---------------------------------------------------*/ |
| 134 | |
| 135 | typedef struct gen { |
| 136 | const char *name; |
| 137 | grand *(*seed)(unsigned /*i*/); |
| 138 | unsigned i; |
| 139 | const char *help; |
| 140 | } gen; |
| 141 | |
| 142 | extern gen generators[]; |
| 143 | |
| 144 | #define CIPHERS \ |
| 145 | E(DES, des) \ |
| 146 | E(DES3, des3) \ |
| 147 | E(RC2, rc2) \ |
| 148 | E(RC5, rc5) \ |
| 149 | E(MARS, mars) \ |
| 150 | E(SKIPJACK, skipjack) \ |
| 151 | E(TEA, tea) \ |
| 152 | E(XTEA, xtea) \ |
| 153 | E(BLOWFISH, blowfish) \ |
| 154 | E(TWOFISH, twofish) \ |
| 155 | E(IDEA, idea) \ |
| 156 | E(CAST128, cast128) \ |
| 157 | E(CAST256, cast256) \ |
| 158 | E(SQUARE, square) \ |
| 159 | E(SAFER, safer) \ |
| 160 | E(SAFERSK, safersk) \ |
| 161 | E(NOEKEON, noekeon) \ |
| 162 | E(RIJNDAEL, rijndael) \ |
| 163 | E(RIJNDAEL192, rijndael192) \ |
| 164 | E(RIJNDAEL256, rijndael256) \ |
| 165 | E(SERPENT, serpent) |
| 166 | |
| 167 | #define HASHES \ |
| 168 | E(MD2, md2) \ |
| 169 | E(MD4, md4) \ |
| 170 | E(MD5, md5) \ |
| 171 | E(SHA, sha) \ |
| 172 | E(TIGER, tiger) \ |
| 173 | E(RMD128, rmd128) \ |
| 174 | E(RMD160, rmd160) \ |
| 175 | E(RMD256, rmd256) \ |
| 176 | E(RMD320, rmd320) |
| 177 | |
| 178 | #define E(PRE, pre) CIPHER_##PRE, |
| 179 | enum { CIPHERS CIPHER__bogus }; |
| 180 | #undef E |
| 181 | |
| 182 | #define E(PRE, pre) HASH_##PRE, |
| 183 | enum { HASHES HASH__bogus }; |
| 184 | #undef E |
| 185 | |
| 186 | static const struct { |
| 187 | const octet *keysz; |
| 188 | size_t blksz; |
| 189 | grand *(*ofb)(const void */*k*/, size_t /*sz*/); |
| 190 | grand *(*counter)(const void */*k*/, size_t /*sz*/); |
| 191 | } ciphertab[] = { |
| 192 | #define E(PRE, pre) \ |
| 193 | { pre##_keysz, PRE##_BLKSZ, pre##_ofbrand, pre##_counterrand }, |
| 194 | CIPHERS |
| 195 | #undef E |
| 196 | }; |
| 197 | |
| 198 | static const struct { |
| 199 | const gchash *h; |
| 200 | const octet *keysz; |
| 201 | grand *(*mgf)(const void */*k*/, size_t /*sz*/); |
| 202 | } hashtab[] = { |
| 203 | #define E(PRE, pre) \ |
| 204 | { &pre, pre##_mgfkeysz, pre##_mgfrand }, |
| 205 | HASHES |
| 206 | #undef E |
| 207 | }; |
| 208 | |
| 209 | #define SALSAE \ |
| 210 | E(salsa20, 20,, SALSA20) \ |
| 211 | E(salsa20, 12,, SALSA20) \ |
| 212 | E(salsa20, 8,, SALSA20) \ |
| 213 | E(xsalsa20, 20, X, SALSA20) \ |
| 214 | E(xsalsa20, 12, X, SALSA20) \ |
| 215 | E(xsalsa20, 8, X, SALSA20) \ |
| 216 | E(chacha, 20,, CHACHA) \ |
| 217 | E(chacha, 12,, CHACHA) \ |
| 218 | E(chacha, 8,, CHACHA) \ |
| 219 | E(xchacha, 20, X, CHACHA) \ |
| 220 | E(xchacha, 12, X, CHACHA) \ |
| 221 | E(xchacha, 8, X, CHACHA) |
| 222 | |
| 223 | #define E(pre, r, x, BASE) pre##_##r##_INDEX, |
| 224 | enum { SALSAE BOGUS_SALSA }; |
| 225 | #undef E |
| 226 | |
| 227 | #define SALSA20_GEN(pre, r) SALSA20_DECOR(pre, r, _rand) |
| 228 | #define CHACHA_GEN(pre, r) pre##r##_rand |
| 229 | |
| 230 | #define SALSA20_NAME(r) SALSA20_NAME_##r |
| 231 | #define XSALSA20_NAME(r) "x" SALSA20_NAME_##r |
| 232 | #define CHACHA_NAME(r) "chacha" #r |
| 233 | #define XCHACHA_NAME(r) "xchacha" #r |
| 234 | |
| 235 | static struct { |
| 236 | size_t noncesz; |
| 237 | grand *(*gen)(const void *, size_t, const void *); |
| 238 | } salsatab[] = { |
| 239 | #define E(pre, r, x, BASE) { x##BASE##_NONCESZ, BASE##_GEN(pre, r) }, |
| 240 | SALSAE |
| 241 | #undef E |
| 242 | }; |
| 243 | |
| 244 | /*----- Miscellaneous static data -----------------------------------------*/ |
| 245 | |
| 246 | static FILE *outfp; |
| 247 | static mp *outsz = 0; |
| 248 | static unsigned maurer_lo = 5, maurer_hi = 8; |
| 249 | |
| 250 | static int argc; |
| 251 | static char **argv; |
| 252 | |
| 253 | static unsigned flags = 0; |
| 254 | |
| 255 | #define f_progress 1u |
| 256 | #define f_file 2u |
| 257 | #define f_fips 4u |
| 258 | #define f_maurer 8u |
| 259 | #define f_timer 16u |
| 260 | #define f_discard 32u |
| 261 | |
| 262 | /*----- Help options ------------------------------------------------------*/ |
| 263 | |
| 264 | static void usage(FILE *fp) |
| 265 | { |
| 266 | pquis(fp, "Usage: $ generator [options]\n"); |
| 267 | } |
| 268 | |
| 269 | static void version(FILE *fp) |
| 270 | { |
| 271 | pquis(fp, "$, Catacomb version " VERSION "\n"); |
| 272 | } |
| 273 | |
| 274 | static void help(FILE *fp) |
| 275 | { |
| 276 | version(fp); |
| 277 | fputc('\n', fp); |
| 278 | usage(fp); |
| 279 | pquis(fp, "\n\ |
| 280 | Emits a stream of random bytes suitable for, well, all sorts of things.\n\ |
| 281 | The primary objective is to be able to generate streams of input for\n\ |
| 282 | statistical tests, such as Diehard.\n\ |
| 283 | \n\ |
| 284 | Options are specific to the particular generator, although there's a\n\ |
| 285 | common core set:\n\ |
| 286 | \n\ |
| 287 | -h, --help Display this help message.\n\ |
| 288 | -v, --version Display the program's version number.\n\ |
| 289 | -u, --usage Display a useless usage message.\n\ |
| 290 | \n\ |
| 291 | -l, --list Show a list of the supported generators, with\n\ |
| 292 | their options.\n\ |
| 293 | -f, --fipstest Run the FIPS 140-1 randomness test.\n\ |
| 294 | -m, --maurer[=LO-HI] Run Maurer's universal statistical test.\n\ |
| 295 | -o, --output FILE Write output to FILE, not stdout.\n\ |
| 296 | -z, --size SIZE Emit SIZE bytes, not an unlimited number.\n\ |
| 297 | -p, --progress Show a little progress meter (on stderr).\n\ |
| 298 | -T, --timer Keep track of the CPU time used by the generator.\n\ |
| 299 | -d, --discard Discard the generated output.\n\ |
| 300 | \n\ |
| 301 | (A SIZE may be followed by `g' for gigabytes, `m' for megabytes, or\n\ |
| 302 | `k' for kilobytes. If unqualified, an amount in bytes is assumed.)\n\ |
| 303 | "); |
| 304 | } |
| 305 | |
| 306 | /*----- Main options parser -----------------------------------------------*/ |
| 307 | |
| 308 | static struct option opts[] = { |
| 309 | |
| 310 | /* --- Standard GNU help options --- */ |
| 311 | |
| 312 | { "help", 0, 0, 'h' }, |
| 313 | { "version", 0, 0, 'v' }, |
| 314 | { "usage", 0, 0, 'u' }, |
| 315 | |
| 316 | /* --- Other useful things --- */ |
| 317 | |
| 318 | { "list", 0, 0, 'l' }, |
| 319 | { "fipstest", 0, 0, 'f' }, |
| 320 | { "maurer", OPTF_ARGOPT, 0, 'm' }, |
| 321 | { "output", OPTF_ARGREQ, 0, 'o' }, |
| 322 | { "size", OPTF_ARGREQ, 0, 'z' }, |
| 323 | { "progress", 0, 0, 'p' }, |
| 324 | { "timer", 0, 0, 'T' }, |
| 325 | { "discard", 0, 0, 'd' }, |
| 326 | |
| 327 | /* --- End of main table --- */ |
| 328 | |
| 329 | { 0, 0, 0, 0 } |
| 330 | }; |
| 331 | |
| 332 | static const char *sopts = "hvu lfm::o:z:pTd"; |
| 333 | |
| 334 | #ifndef OPTION_V |
| 335 | DA_DECL(option_v, struct option); |
| 336 | # define OPTION_V |
| 337 | #endif |
| 338 | |
| 339 | static option_v optv = DA_INIT; |
| 340 | static dstr optd = DSTR_INIT; |
| 341 | |
| 342 | /* --- @addopts@ --- * |
| 343 | * |
| 344 | * Arguments: @const char *s@ = pointer to short options |
| 345 | * @struct option *l@ = pointer to long options |
| 346 | * |
| 347 | * Returns: --- |
| 348 | * |
| 349 | * Use: Adds a collection of options to the table. |
| 350 | */ |
| 351 | |
| 352 | static void addopts(const char *s, struct option *l) |
| 353 | { |
| 354 | dstr_puts(&optd, s); |
| 355 | if (DA_LEN(&optv)) |
| 356 | DA_SHRINK(&optv, 1); |
| 357 | while (l->name) |
| 358 | DA_PUSH(&optv, *l++); |
| 359 | DA_PUSH(&optv, *l); |
| 360 | } |
| 361 | |
| 362 | /* --- @opt@ --- * |
| 363 | * |
| 364 | * Arguments: --- |
| 365 | * |
| 366 | * Returns: Next option from argument array. |
| 367 | * |
| 368 | * Use: Fetches options, handling the standard ones. |
| 369 | */ |
| 370 | |
| 371 | static int opt(void) |
| 372 | { |
| 373 | for (;;) { |
| 374 | int i = mdwopt(argc, argv, optd.buf, DA(&optv), 0, 0, 0); |
| 375 | switch (i) { |
| 376 | case 'h': |
| 377 | help(stdout); |
| 378 | exit(0); |
| 379 | case 'v': |
| 380 | version(stdout); |
| 381 | exit(0); |
| 382 | case 'u': |
| 383 | usage(stdout); |
| 384 | exit(0); |
| 385 | case 'l': { |
| 386 | gen *g; |
| 387 | puts("Generators supported:"); |
| 388 | for (g = generators; g->name; g++) |
| 389 | printf(" %s %s\n", g->name, g->help); |
| 390 | exit(0); |
| 391 | } break; |
| 392 | case 'f': |
| 393 | flags |= f_fips; |
| 394 | break; |
| 395 | case 'm': |
| 396 | flags |= f_maurer; |
| 397 | if (optarg) { |
| 398 | char *p; |
| 399 | unsigned long lo, hi; |
| 400 | lo = strtoul(optarg, &p, 0); |
| 401 | if (*p == '-' || *p == ',') |
| 402 | hi = strtoul(p + 1, &p, 0); |
| 403 | else |
| 404 | hi = lo; |
| 405 | if (*p != 0 || hi < lo || lo == 0) |
| 406 | die(EXIT_FAILURE, "bad bit range `%s'", optarg); |
| 407 | maurer_lo = lo; |
| 408 | maurer_hi = hi; |
| 409 | } |
| 410 | break; |
| 411 | case 'o': |
| 412 | if (flags & f_file) |
| 413 | die(EXIT_FAILURE, "already set an output file"); |
| 414 | if (strcmp(optarg, "-") == 0) |
| 415 | outfp = stdout; |
| 416 | else { |
| 417 | outfp = fopen(optarg, "w"); |
| 418 | if (!outfp) { |
| 419 | die(EXIT_FAILURE, "couldn't open output file `%s': %s", |
| 420 | optarg, strerror(errno)); |
| 421 | } |
| 422 | } |
| 423 | flags |= f_file; |
| 424 | break; |
| 425 | case 'z': { |
| 426 | char *p; |
| 427 | outsz = mp_readstring(outsz, optarg, &p, 0); |
| 428 | if (!outsz || MP_NEGP(outsz)) |
| 429 | die(EXIT_FAILURE, "bad number `%s'", optarg); |
| 430 | switch (*p) { |
| 431 | case 'G': case 'g': outsz = mp_lsl(outsz, outsz, 10); |
| 432 | case 'M': case 'm': outsz = mp_lsl(outsz, outsz, 10); |
| 433 | case 'K': case 'k': outsz = mp_lsl(outsz, outsz, 10); |
| 434 | case 0: |
| 435 | break; |
| 436 | default: |
| 437 | die(EXIT_FAILURE, "bad suffix `%s'", p); |
| 438 | break; |
| 439 | } |
| 440 | if (*p && p[1] != 0) |
| 441 | die(EXIT_FAILURE, "bad suffix `%s'", p); |
| 442 | } break; |
| 443 | case 'p': |
| 444 | flags |= f_progress; |
| 445 | break; |
| 446 | case 'T': |
| 447 | flags |= f_timer; |
| 448 | break; |
| 449 | case 'd': |
| 450 | flags |= f_discard; |
| 451 | break; |
| 452 | default: |
| 453 | return (i); |
| 454 | } |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | /*----- Manglers for seed strings -----------------------------------------*/ |
| 459 | |
| 460 | /* --- @unhex@ --- * |
| 461 | * |
| 462 | * Arguments: @const char *p@ = pointer to input string |
| 463 | * @char **end@ = where the end goes |
| 464 | * @dstr *d@ = output buffer |
| 465 | * |
| 466 | * Returns: --- |
| 467 | * |
| 468 | * Use: Transforms a hex string into a chunk of binary data. |
| 469 | */ |
| 470 | |
| 471 | static void unhex(const char *p, char **end, dstr *d) |
| 472 | { |
| 473 | while (p[0] && p[1]) { |
| 474 | int x = p[0], y = p[1]; |
| 475 | if ('0' <= x && x <= '9') x -= '0'; |
| 476 | else if ('A' <= x && x <= 'F') x -= 'A' - 10; |
| 477 | else if ('a' <= x && x <= 'f') x -= 'a' - 10; |
| 478 | else x = 0; |
| 479 | if ('0' <= y && y <= '9') y -= '0'; |
| 480 | else if ('A' <= y && y <= 'F') y -= 'A' - 10; |
| 481 | else if ('a' <= y && y <= 'f') y -= 'a' - 10; |
| 482 | else y = 0; |
| 483 | DPUTC(d, (x << 4) + y); |
| 484 | p += 2; |
| 485 | } |
| 486 | *end = (char *)p; |
| 487 | } |
| 488 | |
| 489 | /* --- Generate a key --- */ |
| 490 | |
| 491 | static void textkey(dstr *d, const char *p, const octet *ksz) |
| 492 | { |
| 493 | size_t sz = strlen(p); |
| 494 | |
| 495 | if (!sz) |
| 496 | die(EXIT_FAILURE, "zero-length key string"); |
| 497 | if (keysz(sz, ksz) != sz) |
| 498 | DPUTM(d, p, sz); |
| 499 | else { |
| 500 | rmd160_mgfctx g; |
| 501 | rmd160_mgfinit(&g, p, sz); |
| 502 | sz = keysz(0, ksz); |
| 503 | dstr_ensure(d, sz); |
| 504 | rmd160_mgfencrypt(&g, 0, d->buf, sz); |
| 505 | d->len += sz; |
| 506 | } |
| 507 | assert(((void)"I can't seem to choose a good key size", |
| 508 | keysz(d->len, ksz) == d->len)); |
| 509 | } |
| 510 | |
| 511 | static void hexkey(dstr *d, const char *p, const octet *ksz) |
| 512 | { |
| 513 | char *q; |
| 514 | unhex(optarg, &q, d); |
| 515 | if (*q) |
| 516 | die(EXIT_FAILURE, "bad hex key `%s'", p); |
| 517 | if (keysz(d->len, ksz) != d->len) |
| 518 | die(EXIT_FAILURE, "bad key length"); |
| 519 | } |
| 520 | |
| 521 | static void randkey(dstr *d, const octet *ksz) |
| 522 | { |
| 523 | size_t sz = keysz(0, ksz); |
| 524 | dstr_ensure(d, sz); |
| 525 | rand_get(RAND_GLOBAL, d->buf, sz); |
| 526 | d->len += sz; |
| 527 | } |
| 528 | |
| 529 | /*----- Generators --------------------------------------------------------*/ |
| 530 | |
| 531 | /* --- Blum-Blum-Shub strong generator --- */ |
| 532 | |
| 533 | static grand *gen_bbs(unsigned i) |
| 534 | { |
| 535 | /* --- Default modulus --- * |
| 536 | * |
| 537 | * The factors of this number are |
| 538 | * |
| 539 | * @p = 1229936431484295969649886203367009966370895964206162032259292413@ |
| 540 | * @7754313537966036459299022912838407755462506416274551744201653277@ |
| 541 | * @313130311731673973886822067@ |
| 542 | * |
| 543 | * @q = 9798171783943489959487301695884963889684294764514008432498259742@ |
| 544 | * @5374320073594018817245784145742769603334292182227671519041431067@ |
| 545 | * @61344781426317516045890159@ |
| 546 | * |
| 547 | * Both %$p$% and %$q$% are prime; %$(p - 1)/2$% and %$(q - 1)/2$% have no |
| 548 | * common factors. They were found using this program, with random |
| 549 | * starting points. |
| 550 | * |
| 551 | * I hope that, by publishing these factors, I'll dissuade people from |
| 552 | * actually using this modulus in an attempt to attain real security. The |
| 553 | * program is quite quick at finding Blum numbers, so there's no excuse for |
| 554 | * not generating your own. |
| 555 | */ |
| 556 | |
| 557 | const char *mt = |
| 558 | "12051128439013574251357214209433471144307319411973256935382082" |
| 559 | "84356405274180923922403660880355098909699130818163691602989614" |
| 560 | "90135716255689660470370755013177656905237112577648090277537209" |
| 561 | "93607817155427455344810369808478266925293635284364998010510985" |
| 562 | "0503830397166360721262431179505917248447259735253684659338653"; |
| 563 | |
| 564 | /* --- Other things --- */ |
| 565 | |
| 566 | grand *r; |
| 567 | const char *xt = 0; |
| 568 | unsigned bits = 1024; |
| 569 | mp *m, *x; |
| 570 | unsigned show = 0; |
| 571 | const char *kfile = 0, *id = 0, *ktype = 0; |
| 572 | |
| 573 | /* --- Parse options --- */ |
| 574 | |
| 575 | static struct option opts[] = { |
| 576 | { "modulus", OPTF_ARGREQ, 0, 'M' }, |
| 577 | { "generate", 0, 0, 'g' }, |
| 578 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 579 | { "bits", OPTF_ARGREQ, 0, 'b' }, |
| 580 | { "show", 0, 0, 'S' }, |
| 581 | { "keyring", OPTF_ARGREQ, 0, 'k' }, |
| 582 | { "id", OPTF_ARGREQ, 0, 'i' }, |
| 583 | { "type", OPTF_ARGREQ, 0, 't' }, |
| 584 | { 0, 0, 0, 0 } |
| 585 | }; |
| 586 | |
| 587 | addopts("M:gs:b:Sk:i:t:", opts); |
| 588 | |
| 589 | for (;;) { |
| 590 | int o = opt(); |
| 591 | if (o < 0) |
| 592 | break; |
| 593 | switch (o) { |
| 594 | case 'M': |
| 595 | mt = optarg; |
| 596 | break; |
| 597 | case 'g': |
| 598 | mt = 0; |
| 599 | break; |
| 600 | case 's': |
| 601 | xt = optarg; |
| 602 | break; |
| 603 | case 'b': |
| 604 | bits = strtoul(optarg, 0, 0); |
| 605 | if (bits == 0) |
| 606 | die(EXIT_FAILURE, "bad number of bits `%s'", optarg); |
| 607 | break; |
| 608 | case 'S': |
| 609 | show = 1; |
| 610 | break; |
| 611 | case 'k': |
| 612 | kfile = optarg; |
| 613 | mt = 0; |
| 614 | break; |
| 615 | case 'i': |
| 616 | id = optarg; |
| 617 | mt = 0; |
| 618 | break; |
| 619 | case 't': |
| 620 | ktype = optarg; |
| 621 | mt = 0; |
| 622 | break; |
| 623 | default: |
| 624 | return (0); |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | /* --- Generate a modulus if one is requested --- */ |
| 629 | |
| 630 | if (mt) { |
| 631 | char *p; |
| 632 | m = mp_readstring(MP_NEW, mt, &p, 0); |
| 633 | if (!m || *p || (m->v[0] & 3) != 1) |
| 634 | die(EXIT_FAILURE, "bad modulus `%s'", mt); |
| 635 | /* Unfortunately I don't know how to test for a Blum integer */ |
| 636 | } else if (kfile || id || ktype) { |
| 637 | key_file kf; |
| 638 | key *kk; |
| 639 | key_data *kd; |
| 640 | |
| 641 | /* --- Open the key file --- */ |
| 642 | |
| 643 | if (!kfile) |
| 644 | kfile = "keyring"; |
| 645 | if (key_open(&kf, kfile, KOPEN_READ, key_moan, 0)) { |
| 646 | die(EXIT_FAILURE, "error opening key file `%s': %s", |
| 647 | kfile, strerror(errno)); |
| 648 | } |
| 649 | |
| 650 | /* --- Find the key --- */ |
| 651 | |
| 652 | if (id) { |
| 653 | if ((kk = key_bytag(&kf, id)) == 0) |
| 654 | die(EXIT_FAILURE, "key `%s' not found", id); |
| 655 | } else { |
| 656 | if (!ktype) |
| 657 | ktype = "bbs"; |
| 658 | if ((kk = key_bytype(&kf, ktype)) == 0) |
| 659 | die(EXIT_FAILURE, "no suitable key with type `%s' found", ktype); |
| 660 | } |
| 661 | |
| 662 | /* --- Read the key data --- */ |
| 663 | |
| 664 | if ((kk->k->e & KF_ENCMASK) != KENC_STRUCT) |
| 665 | die(EXIT_FAILURE, "key is not structured"); |
| 666 | if ((kd = key_structfind(kk->k, "n")) == 0) |
| 667 | die(EXIT_FAILURE, "key has no subkey `n'"); |
| 668 | if ((kd->e & KF_ENCMASK) != KENC_MP) |
| 669 | die(EXIT_FAILURE, "incompatible subkey encoding"); |
| 670 | m = MP_COPY(kd->u.m); |
| 671 | key_close(&kf); |
| 672 | } else { |
| 673 | bbs_priv bp; |
| 674 | |
| 675 | if (bbs_gen(&bp, bits, &rand_global, 0, |
| 676 | (flags & f_progress) ? pgen_ev : 0, 0)) |
| 677 | die(EXIT_FAILURE, "modulus generation failed"); |
| 678 | m = bp.n; |
| 679 | |
| 680 | if (show) { |
| 681 | fputs("p = ", stderr); |
| 682 | mp_writefile(bp.p, stderr, 10); |
| 683 | fputs("\nq = ", stderr); |
| 684 | mp_writefile(bp.q, stderr, 10); |
| 685 | fputs("\nn = ", stderr); |
| 686 | mp_writefile(bp.n, stderr, 10); |
| 687 | fputc('\n', stderr); |
| 688 | } |
| 689 | |
| 690 | mp_drop(bp.p); |
| 691 | mp_drop(bp.q); |
| 692 | } |
| 693 | |
| 694 | /* --- Set up a seed --- */ |
| 695 | |
| 696 | if (!xt) |
| 697 | x = mprand(MP_NEW, mp_bits(m) - 1, &rand_global, 1); |
| 698 | else { |
| 699 | char *p; |
| 700 | x = mp_readstring(MP_NEW, xt, &p, 0); |
| 701 | if (*p) |
| 702 | die(EXIT_FAILURE, "bad modulus `%s'", xt); |
| 703 | } |
| 704 | |
| 705 | /* --- Right --- */ |
| 706 | |
| 707 | r = bbs_rand(m, x); |
| 708 | |
| 709 | mp_drop(m); |
| 710 | mp_drop(x); |
| 711 | return (r); |
| 712 | } |
| 713 | |
| 714 | /* --- Catacomb's random number generator --- */ |
| 715 | |
| 716 | static grand *gen_rand(unsigned i) |
| 717 | { |
| 718 | grand *r = rand_create(); |
| 719 | dstr d = DSTR_INIT; |
| 720 | |
| 721 | static struct option opts[] = { |
| 722 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 723 | { "text", OPTF_ARGREQ, 0, 't' }, |
| 724 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 725 | { 0, 0, 0, 0 } |
| 726 | }; |
| 727 | |
| 728 | addopts("k:t:H:n", opts); |
| 729 | |
| 730 | r->ops->misc(r, RAND_NOISESRC, &noise_source); |
| 731 | r->ops->misc(r, RAND_SEED, 160); |
| 732 | |
| 733 | for (;;) { |
| 734 | int o = opt(); |
| 735 | if (o < 0) |
| 736 | break; |
| 737 | switch (o) { |
| 738 | case 'k': |
| 739 | DRESET(&d); |
| 740 | textkey(&d, optarg, rmd160_hmackeysz); |
| 741 | r->ops->misc(r, RAND_KEY, d.buf, d.len); |
| 742 | break; |
| 743 | case 't': |
| 744 | r->ops->misc(r, GRAND_SEEDBLOCK, optarg, strlen(optarg)); |
| 745 | break; |
| 746 | case 'H': |
| 747 | DRESET(&d); |
| 748 | hexkey(&d, optarg, rmd160_hmackeysz); |
| 749 | r->ops->misc(r, GRAND_SEEDBLOCK, d.buf, d.len); |
| 750 | break; |
| 751 | } |
| 752 | } |
| 753 | |
| 754 | dstr_destroy(&d); |
| 755 | return (r); |
| 756 | } |
| 757 | |
| 758 | /* --- RC4 output --- */ |
| 759 | |
| 760 | static grand *gen_rc4(unsigned i) |
| 761 | { |
| 762 | grand *r; |
| 763 | dstr d = DSTR_INIT; |
| 764 | |
| 765 | static struct option opts[] = { |
| 766 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 767 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 768 | { 0, 0, 0, 0 } |
| 769 | }; |
| 770 | |
| 771 | addopts("k:H:", opts); |
| 772 | |
| 773 | for (;;) { |
| 774 | int o = opt(); |
| 775 | if (o < 0) |
| 776 | break; |
| 777 | switch (o) { |
| 778 | case 'k': |
| 779 | DRESET(&d); |
| 780 | textkey(&d, optarg, rc4_keysz); |
| 781 | break; |
| 782 | case 'H': |
| 783 | DRESET(&d); |
| 784 | hexkey(&d, optarg, rc4_keysz); |
| 785 | break; |
| 786 | default: |
| 787 | return (0); |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | if (!d.len) |
| 792 | randkey(&d, rc4_keysz); |
| 793 | r = rc4_rand(d.buf, d.len); |
| 794 | dstr_destroy(&d); |
| 795 | return (r); |
| 796 | } |
| 797 | |
| 798 | /* --- SEAL output --- */ |
| 799 | |
| 800 | static grand *gen_seal(unsigned i) |
| 801 | { |
| 802 | grand *r; |
| 803 | dstr d = DSTR_INIT; |
| 804 | uint32 n = 0; |
| 805 | |
| 806 | static struct option opts[] = { |
| 807 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 808 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 809 | { "sequence", OPTF_ARGREQ, 0, 'n' }, |
| 810 | { 0, 0, 0, 0 } |
| 811 | }; |
| 812 | |
| 813 | addopts("k:H:n:", opts); |
| 814 | |
| 815 | for (;;) { |
| 816 | int o = opt(); |
| 817 | if (o < 0) |
| 818 | break; |
| 819 | switch (o) { |
| 820 | case 'k': |
| 821 | DRESET(&d); |
| 822 | textkey(&d, optarg, seal_keysz); |
| 823 | break; |
| 824 | case 'H': |
| 825 | DRESET(&d); |
| 826 | hexkey(&d, optarg, seal_keysz); |
| 827 | break; |
| 828 | case 'n': { |
| 829 | char *p; |
| 830 | n = strtoul(optarg, &p, 0); |
| 831 | if (*p) |
| 832 | die(EXIT_FAILURE, "bad number `%s'", optarg); |
| 833 | } break; |
| 834 | default: |
| 835 | return (0); |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | if (!d.len) |
| 840 | randkey(&d, seal_keysz); |
| 841 | r = seal_rand(d.buf, d.len, n); |
| 842 | dstr_destroy(&d); |
| 843 | return (r); |
| 844 | } |
| 845 | |
| 846 | /* --- Salsa20, XSalsa20, ChaCha, and XChaCha --- */ |
| 847 | |
| 848 | static grand *gen_salsae(unsigned i) |
| 849 | { |
| 850 | grand *r; |
| 851 | char *p; |
| 852 | dstr d = DSTR_INIT; |
| 853 | dstr n = DSTR_INIT; |
| 854 | kludge64 pos = { 0 }; |
| 855 | octet posbuf[8]; |
| 856 | mp *x; |
| 857 | |
| 858 | static struct option opts[] = { |
| 859 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 860 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 861 | { "nonce", OPTF_ARGREQ, 0, 'n' }, |
| 862 | { "seek", OPTF_ARGREQ, 0, 's' }, |
| 863 | { 0, 0, 0, 0 } |
| 864 | }; |
| 865 | |
| 866 | addopts("k:H:n:s:", 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, salsa20_keysz); |
| 876 | break; |
| 877 | case 'H': |
| 878 | DRESET(&d); |
| 879 | hexkey(&d, optarg, salsa20_keysz); |
| 880 | break; |
| 881 | case 'n': |
| 882 | DRESET(&n); |
| 883 | unhex(optarg, &p, &n); |
| 884 | if (*p) |
| 885 | die(EXIT_FAILURE, "bad hex IV `%s'", optarg); |
| 886 | if (n.len != salsatab[i].noncesz) { |
| 887 | die(EXIT_FAILURE, "bad nonce length %lu (must be %lu)", |
| 888 | (unsigned long)n.len, (unsigned long)salsatab[i].noncesz); |
| 889 | } |
| 890 | break; |
| 891 | case 's': |
| 892 | x = mp_readstring(MP_NEW, optarg, &p, 0); |
| 893 | if (*p || MP_NEGP(x) || mp_bits(x) > 64) |
| 894 | die(EXIT_FAILURE, "bad position `%s'", optarg); |
| 895 | mp_storeb(x, posbuf, sizeof(posbuf)); |
| 896 | mp_drop(x); |
| 897 | LOAD64_(pos, posbuf); |
| 898 | break; |
| 899 | default: |
| 900 | return (0); |
| 901 | } |
| 902 | } |
| 903 | |
| 904 | if (!d.len) |
| 905 | randkey(&d, salsa20_keysz); |
| 906 | r = salsatab[i].gen(d.buf, d.len, n.len ? n.buf : 0); |
| 907 | r->ops->misc(r, SALSA20_SEEKU64, pos); |
| 908 | |
| 909 | dstr_destroy(&d); |
| 910 | dstr_destroy(&n); |
| 911 | |
| 912 | return (r); |
| 913 | } |
| 914 | |
| 915 | /* --- Output feedback generators --- */ |
| 916 | |
| 917 | static grand *gen_ofb(unsigned i) |
| 918 | { |
| 919 | grand *r; |
| 920 | dstr d = DSTR_INIT; |
| 921 | dstr iv = DSTR_INIT; |
| 922 | |
| 923 | static struct option opts[] = { |
| 924 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 925 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 926 | { "iv", OPTF_ARGREQ, 0, 'i' }, |
| 927 | { 0, 0, 0, 0 } |
| 928 | }; |
| 929 | |
| 930 | addopts("k:H:i:", opts); |
| 931 | |
| 932 | for (;;) { |
| 933 | int o = opt(); |
| 934 | if (o < 0) |
| 935 | break; |
| 936 | switch (o) { |
| 937 | case 'k': |
| 938 | DRESET(&d); |
| 939 | textkey(&d, optarg, ciphertab[i].keysz); |
| 940 | break; |
| 941 | case 'H': |
| 942 | DRESET(&d); |
| 943 | hexkey(&d, optarg, ciphertab[i].keysz); |
| 944 | break; |
| 945 | case 'i': { |
| 946 | char *p; |
| 947 | DRESET(&iv); |
| 948 | unhex(optarg, &p, &iv); |
| 949 | if (*p) |
| 950 | die(EXIT_FAILURE, "bad hex IV `%s'", optarg); |
| 951 | if (iv.len != ciphertab[i].blksz) { |
| 952 | die(EXIT_FAILURE, "bad IV length %lu (must be %lu)", |
| 953 | (unsigned long)iv.len, (unsigned long)ciphertab[i].blksz); |
| 954 | } |
| 955 | } break; |
| 956 | default: |
| 957 | return (0); |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | if (!d.len) |
| 962 | randkey(&d, ciphertab[i].keysz); |
| 963 | r = ciphertab[i].ofb(d.buf, d.len); |
| 964 | if (iv.len) |
| 965 | r->ops->misc(r, GRAND_SEEDBLOCK, iv.buf); |
| 966 | |
| 967 | dstr_destroy(&d); |
| 968 | dstr_destroy(&iv); |
| 969 | return (r); |
| 970 | } |
| 971 | |
| 972 | /* --- Counter generators --- */ |
| 973 | |
| 974 | static grand *gen_counter(unsigned i) |
| 975 | { |
| 976 | grand *r; |
| 977 | dstr d = DSTR_INIT; |
| 978 | dstr iv = DSTR_INIT; |
| 979 | |
| 980 | static struct option opts[] = { |
| 981 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 982 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 983 | { "iv", OPTF_ARGREQ, 0, 'i' }, |
| 984 | { 0, 0, 0, 0 } |
| 985 | }; |
| 986 | |
| 987 | addopts("k:H:i:", opts); |
| 988 | |
| 989 | for (;;) { |
| 990 | int o = opt(); |
| 991 | if (o < 0) |
| 992 | break; |
| 993 | switch (o) { |
| 994 | case 'k': |
| 995 | DRESET(&d); |
| 996 | textkey(&d, optarg, ciphertab[i].keysz); |
| 997 | break; |
| 998 | case 'H': |
| 999 | DRESET(&d); |
| 1000 | hexkey(&d, optarg, ciphertab[i].keysz); |
| 1001 | break; |
| 1002 | case 'i': { |
| 1003 | char *p; |
| 1004 | DRESET(&iv); |
| 1005 | unhex(optarg, &p, &iv); |
| 1006 | if (*p) |
| 1007 | die(EXIT_FAILURE, "bad hex IV `%s'", optarg); |
| 1008 | if (iv.len != ciphertab[i].blksz) { |
| 1009 | die(EXIT_FAILURE, "bad IV length %lu (must be %lu)", |
| 1010 | (unsigned long)iv.len, (unsigned long)ciphertab[i].blksz); |
| 1011 | } |
| 1012 | } break; |
| 1013 | default: |
| 1014 | return (0); |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | if (!d.len) |
| 1019 | randkey(&d, ciphertab[i].keysz); |
| 1020 | r = ciphertab[i].counter(d.buf, d.len); |
| 1021 | if (iv.len) |
| 1022 | r->ops->misc(r, GRAND_SEEDBLOCK, iv.buf); |
| 1023 | |
| 1024 | dstr_destroy(&d); |
| 1025 | dstr_destroy(&iv); |
| 1026 | return (r); |
| 1027 | } |
| 1028 | |
| 1029 | /* --- Mask generators --- */ |
| 1030 | |
| 1031 | static grand *gen_mgf(unsigned i) |
| 1032 | { |
| 1033 | grand *r; |
| 1034 | dstr d = DSTR_INIT; |
| 1035 | uint32 c = 0; |
| 1036 | |
| 1037 | static struct option opts[] = { |
| 1038 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 1039 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 1040 | { "index", OPTF_ARGREQ, 0, 'i' }, |
| 1041 | { 0, 0, 0, 0 } |
| 1042 | }; |
| 1043 | |
| 1044 | addopts("k:H:i:", opts); |
| 1045 | |
| 1046 | for (;;) { |
| 1047 | int o = opt(); |
| 1048 | if (o < 0) |
| 1049 | break; |
| 1050 | switch (o) { |
| 1051 | case 'k': |
| 1052 | DRESET(&d); |
| 1053 | textkey(&d, optarg, hashtab[i].keysz); |
| 1054 | break; |
| 1055 | case 'H': |
| 1056 | DRESET(&d); |
| 1057 | hexkey(&d, optarg, hashtab[i].keysz); |
| 1058 | break; |
| 1059 | case 'i': { |
| 1060 | char *p; |
| 1061 | c = strtoul(optarg, &p, 0); |
| 1062 | if (*p) |
| 1063 | die(EXIT_FAILURE, "bad index `%s'", optarg); |
| 1064 | } break; |
| 1065 | default: |
| 1066 | return (0); |
| 1067 | } |
| 1068 | } |
| 1069 | |
| 1070 | if (!d.len) |
| 1071 | randkey(&d, hashtab[i].keysz); |
| 1072 | |
| 1073 | r = hashtab[i].mgf(d.buf, d.len); |
| 1074 | if (c) |
| 1075 | r->ops->misc(r, GRAND_SEEDUINT32, c); |
| 1076 | |
| 1077 | dstr_destroy(&d); |
| 1078 | return (r); |
| 1079 | } |
| 1080 | |
| 1081 | /* --- Fibonacci generator --- */ |
| 1082 | |
| 1083 | static grand *gen_fib(unsigned i) |
| 1084 | { |
| 1085 | grand *r; |
| 1086 | uint32 s = 0; |
| 1087 | char *p; |
| 1088 | unsigned set = 0; |
| 1089 | |
| 1090 | static struct option opts[] = { |
| 1091 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 1092 | { 0, 0, 0, 0 } |
| 1093 | }; |
| 1094 | |
| 1095 | addopts("s:", opts); |
| 1096 | |
| 1097 | for (;;) { |
| 1098 | int o = opt(); |
| 1099 | if (o < 0) |
| 1100 | break; |
| 1101 | switch (o) { |
| 1102 | case 's': |
| 1103 | s = strtoul(optarg, &p, 0); |
| 1104 | if (*p) |
| 1105 | die(EXIT_FAILURE, "bad integer `%s'", optarg); |
| 1106 | set = 1; |
| 1107 | break; |
| 1108 | default: |
| 1109 | return (0); |
| 1110 | } |
| 1111 | } |
| 1112 | r = fibrand_create(s); |
| 1113 | if (!set) |
| 1114 | r->ops->misc(r, GRAND_SEEDRAND, &rand_global); |
| 1115 | return (r); |
| 1116 | } |
| 1117 | |
| 1118 | /* --- LC generator --- */ |
| 1119 | |
| 1120 | static grand *gen_lc(unsigned i) |
| 1121 | { |
| 1122 | uint32 s = 0; |
| 1123 | char *p; |
| 1124 | unsigned set = 0; |
| 1125 | |
| 1126 | static struct option opts[] = { |
| 1127 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 1128 | { 0, 0, 0, 0 } |
| 1129 | }; |
| 1130 | |
| 1131 | addopts("s:", opts); |
| 1132 | |
| 1133 | for (;;) { |
| 1134 | int o = opt(); |
| 1135 | if (o < 0) |
| 1136 | break; |
| 1137 | switch (o) { |
| 1138 | case 's': |
| 1139 | s = strtoul(optarg, &p, 0); |
| 1140 | if (*p) |
| 1141 | die(EXIT_FAILURE, "bad integer `%s'", optarg); |
| 1142 | set = 1; |
| 1143 | break; |
| 1144 | default: |
| 1145 | return (0); |
| 1146 | } |
| 1147 | } |
| 1148 | if (!set) { |
| 1149 | do |
| 1150 | s = rand_global.ops->range(&rand_global, LCRAND_P); |
| 1151 | while (s == LCRAND_FIXEDPT); |
| 1152 | } |
| 1153 | return (lcrand_create(s)); |
| 1154 | } |
| 1155 | |
| 1156 | /* --- Basic options parser -- can't generate output --- */ |
| 1157 | |
| 1158 | static grand *gen_opts(unsigned i) |
| 1159 | { |
| 1160 | while (opt() >= 0) |
| 1161 | ; |
| 1162 | return (0); |
| 1163 | } |
| 1164 | |
| 1165 | /*----- Generators table --------------------------------------------------*/ |
| 1166 | |
| 1167 | gen generators[] = { |
| 1168 | { "fibonacci", gen_fib, 0, |
| 1169 | "[-s SEED]" }, |
| 1170 | { "lc", gen_lc, 0, |
| 1171 | "[-s SEED]" }, |
| 1172 | #define E(PRE, pre) \ |
| 1173 | { #pre "-ofb", gen_ofb, CIPHER_##PRE, \ |
| 1174 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i HEX-IV]" }, |
| 1175 | CIPHERS |
| 1176 | #undef E |
| 1177 | #define E(PRE, pre) \ |
| 1178 | { #pre "-counter", gen_counter, CIPHER_##PRE, \ |
| 1179 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i HEX-IV]" }, |
| 1180 | CIPHERS |
| 1181 | #undef E |
| 1182 | #define E(PRE, pre) \ |
| 1183 | { #pre "-mgf", gen_mgf, HASH_##PRE, \ |
| 1184 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i INDEX]" }, |
| 1185 | HASHES |
| 1186 | #undef E |
| 1187 | #define E(pre, r, x, BASE) \ |
| 1188 | { x##BASE##_NAME(r), gen_salsae, pre##_##r##_INDEX, \ |
| 1189 | "[-k KEY-PHRASE] [-H HEX-KEY] [-n NONCE]" }, |
| 1190 | SALSAE |
| 1191 | #undef E |
| 1192 | { "rc4", gen_rc4, 0, |
| 1193 | "[-k KEY-PHRASE] [-H HEX-KEY]" }, |
| 1194 | { "seal", gen_seal, 0, |
| 1195 | "[-k KEY-PHRASE] [-H HEX-KEY] [-n SEQ]" }, |
| 1196 | { "rand", gen_rand, 0, |
| 1197 | "[-n] [-k KEY-PHRASE] [-t TEXT-BLOCK] [-H HEX-BLOCK]" }, |
| 1198 | { "bbs", gen_bbs, 0, |
| 1199 | "[-gS] [-s SEED] [-M MODULUS] [-b BITS] [-k KEYRING] [-i TAG] [-t TYPE]" |
| 1200 | }, |
| 1201 | { 0, 0, 0, 0 }, |
| 1202 | }; |
| 1203 | |
| 1204 | static gen optsg = { "options", gen_opts, 0, |
| 1205 | "This message shouldn't be printed." }; |
| 1206 | |
| 1207 | /*----- Random number generation ------------------------------------------*/ |
| 1208 | |
| 1209 | static int genfile(const void *buf, size_t sz, void *p) |
| 1210 | { |
| 1211 | FILE *fp = p; |
| 1212 | if (fwrite(buf, 1, sz, fp) != sz) |
| 1213 | die(EXIT_FAILURE, "error writing to file: %s", strerror(errno)); |
| 1214 | return (0); |
| 1215 | } |
| 1216 | |
| 1217 | static int genbuf(const void *buf, size_t sz, void *p) |
| 1218 | { |
| 1219 | octet **pp = p; |
| 1220 | memcpy(*pp, buf, sz); |
| 1221 | *pp += sz; |
| 1222 | return (0); |
| 1223 | } |
| 1224 | |
| 1225 | typedef struct genmaurer_ctx { |
| 1226 | size_t n; |
| 1227 | maurer_ctx *m; |
| 1228 | } genmaurer_ctx; |
| 1229 | |
| 1230 | static int genmaurer(const void *buf, size_t sz, void *p) |
| 1231 | { |
| 1232 | genmaurer_ctx *g = p; |
| 1233 | size_t i; |
| 1234 | |
| 1235 | for (i = 0; i < g->n; i++) |
| 1236 | maurer_test(&g->m[i], buf, sz); |
| 1237 | return (0); |
| 1238 | } |
| 1239 | |
| 1240 | static double doubletime(void) |
| 1241 | { |
| 1242 | #ifdef PORTABLE |
| 1243 | static time_t start = (time_t)-1; |
| 1244 | time_t now = time(0); |
| 1245 | |
| 1246 | if (start == (time_t)-1) start = now; |
| 1247 | return difftime(now, start); |
| 1248 | #else |
| 1249 | struct timeval tv; |
| 1250 | |
| 1251 | gettimeofday(&tv, 0); |
| 1252 | return (tv.tv_sec + tv.tv_usec/1000000.0); |
| 1253 | #endif |
| 1254 | } |
| 1255 | |
| 1256 | static int generate(grand *r, mp *outsz, |
| 1257 | int (*func)(const void *buf, size_t sz, void *p), |
| 1258 | void *p) |
| 1259 | { |
| 1260 | static char kmg[] = { ' ', 'k', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y', 0 }; |
| 1261 | |
| 1262 | unsigned percent = 0; |
| 1263 | mp *kb = MP_ZERO, *t = MP_NEW; |
| 1264 | dstr d = DSTR_INIT; |
| 1265 | double now, last; |
| 1266 | static char baton[] = "-\\|/"; |
| 1267 | char *bp; |
| 1268 | int rc; |
| 1269 | clock_t clk = 0; |
| 1270 | |
| 1271 | /* --- Spit out random data --- */ |
| 1272 | |
| 1273 | last = doubletime(); |
| 1274 | bp = baton; |
| 1275 | if (flags & f_progress) { |
| 1276 | char *errbuf = xmalloc(BUFSIZ); |
| 1277 | setvbuf(stderr, errbuf, _IOLBF, BUFSIZ); |
| 1278 | if (outsz) |
| 1279 | fprintf(stderr, "[%*s] 0%% 0\r[/\b", 50, ""); |
| 1280 | else |
| 1281 | fputs("[ ] 0\r[/\b", stderr); |
| 1282 | fflush(stderr); |
| 1283 | } |
| 1284 | |
| 1285 | #ifdef SIGPIPE |
| 1286 | signal(SIGPIPE, SIG_IGN); |
| 1287 | #endif |
| 1288 | |
| 1289 | while (!outsz || MP_CMP(kb, <, outsz)) { |
| 1290 | octet buf[BUFSIZ]; |
| 1291 | size_t sz = sizeof(buf), left; |
| 1292 | clock_t c_start, c_stop; |
| 1293 | |
| 1294 | /* --- Emit a bufferful (or less) of data --- */ |
| 1295 | |
| 1296 | if (outsz) { |
| 1297 | t = mp_sub(t, outsz, kb); |
| 1298 | assert(!MP_NEGP(t)); |
| 1299 | if (MP_CMP(t, <=, MP_SIZET_MAX)) { |
| 1300 | left = mp_tosizet(t); |
| 1301 | if (sz > left) sz = left; |
| 1302 | } |
| 1303 | } |
| 1304 | c_start = clock(); |
| 1305 | r->ops->fill(r, buf, sz); |
| 1306 | c_stop = clock(); |
| 1307 | clk += c_stop - c_start; |
| 1308 | if (func && (rc = func(buf, sz, p)) != 0) |
| 1309 | return (rc); |
| 1310 | t = mp_fromsizet(t, sz); |
| 1311 | kb = mp_add(kb, kb, t); |
| 1312 | |
| 1313 | /* --- Update the display --- */ |
| 1314 | |
| 1315 | if (flags & f_progress) { |
| 1316 | unsigned up = 0; |
| 1317 | |
| 1318 | now = doubletime(); |
| 1319 | |
| 1320 | if (percent > 100) |
| 1321 | up = 1; |
| 1322 | |
| 1323 | if (!outsz) { |
| 1324 | if (now - last > 0.1) { |
| 1325 | up = 1; |
| 1326 | } |
| 1327 | if (up) |
| 1328 | fputs(" ] ", stderr); |
| 1329 | } else { |
| 1330 | unsigned pc; |
| 1331 | t = mp_fromulong(t, 100); |
| 1332 | t = mp_mul(t, t, kb); |
| 1333 | mp_div(&t, 0, t, outsz); |
| 1334 | assert(!MP_NEGP(t) && MP_CMP(t, <, MP_UINT_MAX)); |
| 1335 | pc = mp_touint(t); |
| 1336 | if (pc > percent || percent > 100 || now - last > 0.1) { |
| 1337 | if (percent > 100) |
| 1338 | percent = 0; |
| 1339 | percent &= ~1; |
| 1340 | for (; percent < (pc & ~1); percent += 2) |
| 1341 | putc('.', stderr); |
| 1342 | percent = pc; |
| 1343 | for (; pc < 100; pc += 2) |
| 1344 | putc(' ', stderr); |
| 1345 | fprintf(stderr, "] %3i%% ", percent); |
| 1346 | up = 1; |
| 1347 | } |
| 1348 | } |
| 1349 | |
| 1350 | if (up) { |
| 1351 | char *kk = kmg; |
| 1352 | t = mp_add(t, kb, MP_ZERO); |
| 1353 | while (mp_bits(t) >= 14) { |
| 1354 | t = mp_lsr(t, t, 10); |
| 1355 | kk++; |
| 1356 | } |
| 1357 | DRESET(&d); |
| 1358 | mp_writedstr(t, &d, 10); |
| 1359 | fprintf(stderr, "%4s%c\r[", d.buf, *kk); |
| 1360 | if (outsz) { |
| 1361 | unsigned pc; |
| 1362 | for (pc = 0; pc < (percent & ~1); pc += 2) |
| 1363 | putc('.', stderr); |
| 1364 | } |
| 1365 | last = now; |
| 1366 | } |
| 1367 | |
| 1368 | if (percent > 100) |
| 1369 | percent = 0; |
| 1370 | |
| 1371 | if (percent < 100 && up) { |
| 1372 | putc(*bp++, stderr); |
| 1373 | putc('\b', stderr); |
| 1374 | if (!*bp) |
| 1375 | bp = baton; |
| 1376 | } |
| 1377 | fflush(stderr); |
| 1378 | } |
| 1379 | } |
| 1380 | |
| 1381 | if (flags & f_progress) |
| 1382 | fputc('\n', stderr); |
| 1383 | if (flags & f_timer) { |
| 1384 | DRESET(&d); |
| 1385 | dstr_puts(&d, "generated "); |
| 1386 | mp_writedstr(kb, &d, 10); |
| 1387 | dstr_puts(&d, " bytes "); |
| 1388 | if (!clk) |
| 1389 | dstr_puts(&d, "too quickly to measure\n"); |
| 1390 | else { |
| 1391 | char *kk; |
| 1392 | double out; |
| 1393 | double sec = (double)clk/CLOCKS_PER_SEC; |
| 1394 | unsigned long sh; |
| 1395 | double bps; |
| 1396 | |
| 1397 | MP_SHRINK(kb); |
| 1398 | switch (MP_LEN(kb)) { |
| 1399 | case 0: out = 0; break; |
| 1400 | case 1: out = kb->v[0]; break; |
| 1401 | default: |
| 1402 | sh = mp_bits(kb) - MPW_BITS; |
| 1403 | t = mp_lsr(t, kb, sh); |
| 1404 | out = ldexp(t->v[0], sh); |
| 1405 | break; |
| 1406 | } |
| 1407 | bps = (8*out)/sec; |
| 1408 | for (kk = kmg; bps > 1024 && kk[1]; kk++, bps /= 1024) |
| 1409 | ; |
| 1410 | dstr_putf(&d, "in %g secs (%g %cb/s)\n", sec, bps, *kk); |
| 1411 | fwrite(d.buf, 1, d.len, stderr); |
| 1412 | } |
| 1413 | } |
| 1414 | |
| 1415 | mp_drop(t); |
| 1416 | DDESTROY(&d); |
| 1417 | return (0); |
| 1418 | } |
| 1419 | |
| 1420 | /*----- Main code ---------------------------------------------------------*/ |
| 1421 | |
| 1422 | int main(int ac, char *av[]) |
| 1423 | { |
| 1424 | gen *g = &optsg; |
| 1425 | grand *r; |
| 1426 | |
| 1427 | /* --- Initialize mLib --- */ |
| 1428 | |
| 1429 | ego(av[0]); |
| 1430 | sub_init(); |
| 1431 | |
| 1432 | /* --- Set up the main Catacomb generator --- */ |
| 1433 | |
| 1434 | rand_noisesrc(RAND_GLOBAL, &noise_source); |
| 1435 | rand_seed(RAND_GLOBAL, 160); |
| 1436 | |
| 1437 | /* --- Initialize the options table --- */ |
| 1438 | |
| 1439 | addopts(sopts, opts); |
| 1440 | argc = ac; |
| 1441 | argv = av; |
| 1442 | outfp = stdout; |
| 1443 | |
| 1444 | /* --- Read the generator out of the first argument --- */ |
| 1445 | |
| 1446 | if (argc > 1 && *argv[1] != '-') { |
| 1447 | const char *arg = av[1]; |
| 1448 | size_t sz = strlen(arg); |
| 1449 | gen *gg; |
| 1450 | |
| 1451 | g = 0; |
| 1452 | for (gg = generators; gg->name; gg++) { |
| 1453 | if (strncmp(arg, gg->name, sz) == 0) { |
| 1454 | if (gg->name[sz] == 0) { |
| 1455 | g = gg; |
| 1456 | break; |
| 1457 | } else if (g) |
| 1458 | die(EXIT_FAILURE, "ambiguous generator name `%s'", arg); |
| 1459 | else |
| 1460 | g = gg; |
| 1461 | } |
| 1462 | } |
| 1463 | if (!g) |
| 1464 | die(EXIT_FAILURE, "unknown generator name `%s'", arg); |
| 1465 | argc--; |
| 1466 | argv++; |
| 1467 | } |
| 1468 | |
| 1469 | /* --- Get a generic random number generator --- */ |
| 1470 | |
| 1471 | r = g->seed(g->i); |
| 1472 | if (!r || optind != ac - 1) { |
| 1473 | usage(stderr); |
| 1474 | exit(EXIT_FAILURE); |
| 1475 | } |
| 1476 | |
| 1477 | /* --- Do the FIPS test --- */ |
| 1478 | |
| 1479 | if (flags & f_fips) { |
| 1480 | octet buf[FIPSTEST_BUFSZ]; |
| 1481 | unsigned rc; |
| 1482 | mp *t; |
| 1483 | octet *p = buf; |
| 1484 | |
| 1485 | t = mp_fromsizet(MP_NEW, sizeof(buf)); |
| 1486 | generate(r, t, genbuf, &p); |
| 1487 | mp_drop(t); |
| 1488 | rc = fipstest(buf); |
| 1489 | if (rc & FIPSTEST_MONOBIT) |
| 1490 | moan("failed monobit test"); |
| 1491 | if (rc & FIPSTEST_POKER) |
| 1492 | moan("failed poker test"); |
| 1493 | if (rc & FIPSTEST_RUNS) |
| 1494 | moan("failed runs test"); |
| 1495 | if (rc & FIPSTEST_LONGRUNS) |
| 1496 | moan("failed long runs test"); |
| 1497 | if (!rc && (flags & f_progress)) |
| 1498 | fputs("test passed\n", stderr); |
| 1499 | return (rc ? EXIT_FAILURE : 0); |
| 1500 | } |
| 1501 | |
| 1502 | /* --- Do Maurer's test --- */ |
| 1503 | |
| 1504 | if (flags & f_maurer) { |
| 1505 | size_t bufsz; |
| 1506 | unsigned i; |
| 1507 | unsigned rc = 0; |
| 1508 | mp *t; |
| 1509 | genmaurer_ctx g; |
| 1510 | |
| 1511 | static struct { double x; const char *sig; } sigtab[] = { |
| 1512 | { 3.2905, "1e-3" }, |
| 1513 | { 3.0902, "2e-3" }, |
| 1514 | { 2.8070, "5e-3" }, |
| 1515 | { 2.5758, "1e-2" }, |
| 1516 | { 0 , 0 } |
| 1517 | }; |
| 1518 | |
| 1519 | g.n = maurer_hi - maurer_lo + 1; |
| 1520 | g.m = xmalloc(g.n * sizeof(maurer_ctx)); |
| 1521 | for (i = 0; i < g.n; i++) |
| 1522 | maurer_init(&g.m[i], i + maurer_lo); |
| 1523 | bufsz = (100 * maurer_hi) << maurer_hi; |
| 1524 | |
| 1525 | t = mp_fromsizet(MP_NEW, bufsz); |
| 1526 | generate(r, t, genmaurer, &g); |
| 1527 | mp_drop(t); |
| 1528 | |
| 1529 | for (i = maurer_lo; i <= maurer_hi; i++) { |
| 1530 | double z = maurer_done(&g.m[i - maurer_lo]); |
| 1531 | double zz = fabs(z); |
| 1532 | unsigned j; |
| 1533 | |
| 1534 | for (j = 0; sigtab[j].sig; j++) { |
| 1535 | if (zz > sigtab[j].x) { |
| 1536 | rc = EXIT_FAILURE; |
| 1537 | moan("failed, bits = %u, sig = %s, Z_u = %g", |
| 1538 | i, sigtab[j].sig, z); |
| 1539 | break; |
| 1540 | } |
| 1541 | } |
| 1542 | if (flags & f_progress) |
| 1543 | fprintf(stderr, "bits = %u, Z_u = %g\n", i, z); |
| 1544 | } |
| 1545 | |
| 1546 | xfree(g.m); |
| 1547 | return (rc); |
| 1548 | } |
| 1549 | |
| 1550 | /* --- Discard --- */ |
| 1551 | |
| 1552 | if (flags & f_discard) { |
| 1553 | generate(r, outsz, 0, 0); |
| 1554 | return (0); |
| 1555 | } |
| 1556 | |
| 1557 | /* --- Write to a file --- */ |
| 1558 | |
| 1559 | #ifndef PORTABLE |
| 1560 | if (!(flags & f_file) && isatty(STDOUT_FILENO)) |
| 1561 | die(EXIT_FAILURE, "writing output to a terminal is a bad idea"); |
| 1562 | #endif |
| 1563 | |
| 1564 | generate(r, outsz, genfile, outfp); |
| 1565 | |
| 1566 | /* --- Done --- */ |
| 1567 | |
| 1568 | r->ops->destroy(r); |
| 1569 | return (0); |
| 1570 | } |
| 1571 | |
| 1572 | /*----- That's all, folks -------------------------------------------------*/ |