diff options
Diffstat (limited to 'security/nss/lib/freebl/mpi/utils/primegen.c')
| -rw-r--r-- | security/nss/lib/freebl/mpi/utils/primegen.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/security/nss/lib/freebl/mpi/utils/primegen.c b/security/nss/lib/freebl/mpi/utils/primegen.c deleted file mode 100644 index 1cd5c9f5b..000000000 --- a/security/nss/lib/freebl/mpi/utils/primegen.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * primegen.c - * - * Generates random integers which are prime with a high degree of - * probability using the Miller-Rabin probabilistic primality testing - * algorithm. - * - * Usage: - * primegen <bits> [<num>] - * - * <bits> - number of significant bits each prime should have - * <num> - number of primes to generate - * - * ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. - * - * The Initial Developer of the Original Code is - * Michael J. Fromberger. - * Portions created by the Initial Developer are Copyright (C) 1998 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ -/* $Id$ */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <limits.h> -#include <time.h> - -#include "mpi.h" -#include "mplogic.h" -#include "mpprime.h" - -#undef MACOS /* define if running on a Macintosh */ - -#ifdef MACOS -#include <console.h> -#endif - -#define NUM_TESTS 5 /* Number of Rabin-Miller iterations to test with */ - -#ifdef DEBUG -#define FPUTC(x,y) fputc(x,y) -#else -#define FPUTC(x,y) -#endif - -int main(int argc, char *argv[]) -{ - unsigned char *raw; - char *out; - unsigned long nTries; - int rawlen, bits, outlen, ngen, ix, jx; - int g_strong = 0; - mp_int testval; - mp_err res; - clock_t start, end; - -#ifdef MACOS - argc = ccommand(&argv); -#endif - - /* We'll just use the C library's rand() for now, although this - won't be good enough for cryptographic purposes */ - if((out = getenv("SEED")) == NULL) { - srand((unsigned int)time(NULL)); - } else { - srand((unsigned int)atoi(out)); - } - - if(argc < 2) { - fprintf(stderr, "Usage: %s <bits> [<count> [strong]]\n", argv[0]); - return 1; - } - - if((bits = abs(atoi(argv[1]))) < CHAR_BIT) { - fprintf(stderr, "%s: please request at least %d bits.\n", - argv[0], CHAR_BIT); - return 1; - } - - /* If optional third argument is given, use that as the number of - primes to generate; otherwise generate one prime only. - */ - if(argc < 3) { - ngen = 1; - } else { - ngen = abs(atoi(argv[2])); - } - - /* If fourth argument is given, and is the word "strong", we'll - generate strong (Sophie Germain) primes. - */ - if(argc > 3 && strcmp(argv[3], "strong") == 0) - g_strong = 1; - - /* testval - candidate being tested; nTries - number tried so far */ - if ((res = mp_init(&testval)) != MP_OKAY) { - fprintf(stderr, "%s: error: %s\n", argv[0], mp_strerror(res)); - return 1; - } - - if(g_strong) { - printf("Requested %d strong prime value(s) of %d bits.\n", - ngen, bits); - } else { - printf("Requested %d prime value(s) of %d bits.\n", ngen, bits); - } - - rawlen = (bits / CHAR_BIT) + ((bits % CHAR_BIT) ? 1 : 0) + 1; - - if((raw = calloc(rawlen, sizeof(unsigned char))) == NULL) { - fprintf(stderr, "%s: out of memory, sorry.\n", argv[0]); - return 1; - } - - /* This loop is one for each prime we need to generate */ - for(jx = 0; jx < ngen; jx++) { - - raw[0] = 0; /* sign is positive */ - - /* Pack the initializer with random bytes */ - for(ix = 1; ix < rawlen; ix++) - raw[ix] = (rand() * rand()) & UCHAR_MAX; - - raw[1] |= 0x80; /* set high-order bit of test value */ - raw[rawlen - 1] |= 1; /* set low-order bit of test value */ - - /* Make an mp_int out of the initializer */ - mp_read_raw(&testval, (char *)raw, rawlen); - - /* Initialize candidate counter */ - nTries = 0; - - start = clock(); /* time generation for this prime */ - do { - res = mpp_make_prime(&testval, bits, g_strong, &nTries); - if (res != MP_NO) - break; - /* This code works whether digits are 16 or 32 bits */ - res = mp_add_d(&testval, 32 * 1024, &testval); - res = mp_add_d(&testval, 32 * 1024, &testval); - FPUTC(',', stderr); - } while (1); - end = clock(); - - if (res != MP_YES) { - break; - } - FPUTC('\n', stderr); - puts("The following value is probably prime:"); - outlen = mp_radix_size(&testval, 10); - out = calloc(outlen, sizeof(unsigned char)); - mp_toradix(&testval, (char *)out, 10); - printf("10: %s\n", out); - mp_toradix(&testval, (char *)out, 16); - printf("16: %s\n\n", out); - free(out); - - printf("Number of candidates tried: %lu\n", nTries); - printf("This computation took %ld clock ticks (%.2f seconds)\n", - (end - start), ((double)(end - start) / CLOCKS_PER_SEC)); - - FPUTC('\n', stderr); - } /* end of loop to generate all requested primes */ - - if(res != MP_OKAY) - fprintf(stderr, "%s: error: %s\n", argv[0], mp_strerror(res)); - - free(raw); - mp_clear(&testval); - - return 0; -} |