| /* apps/dsaparam.c */ |
| /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| * All rights reserved. |
| * |
| * This package is an SSL implementation written |
| * by Eric Young (eay@cryptsoft.com). |
| * The implementation was written so as to conform with Netscapes SSL. |
| * |
| * This library is free for commercial and non-commercial use as long as |
| * the following conditions are aheared to. The following conditions |
| * apply to all code found in this distribution, be it the RC4, RSA, |
| * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| * included with this distribution is covered by the same copyright terms |
| * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| * |
| * Copyright remains Eric Young's, and as such any Copyright notices in |
| * the code are not to be removed. |
| * If this package is used in a product, Eric Young should be given attribution |
| * as the author of the parts of the library used. |
| * This can be in the form of a textual message at program startup or |
| * in documentation (online or textual) provided with the package. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * "This product includes cryptographic software written by |
| * Eric Young (eay@cryptsoft.com)" |
| * The word 'cryptographic' can be left out if the rouines from the library |
| * being used are not cryptographic related :-). |
| * 4. If you include any Windows specific code (or a derivative thereof) from |
| * the apps directory (application code) you must include an acknowledgement: |
| * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * The licence and distribution terms for any publically available version or |
| * derivative of this code cannot be changed. i.e. this code cannot simply be |
| * copied and put under another distribution licence |
| * [including the GNU Public Licence.] |
| */ |
| |
| #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ |
| /* |
| * Until the key-gen callbacks are modified to use newer prototypes, we allow |
| * deprecated functions for openssl-internal code |
| */ |
| #ifdef OPENSSL_NO_DEPRECATED |
| # undef OPENSSL_NO_DEPRECATED |
| #endif |
| |
| #ifndef OPENSSL_NO_DSA |
| # include <assert.h> |
| # include <stdio.h> |
| # include <stdlib.h> |
| # include <time.h> |
| # include <string.h> |
| # include "apps.h" |
| # include <openssl/bio.h> |
| # include <openssl/err.h> |
| # include <openssl/bn.h> |
| # include <openssl/dsa.h> |
| # include <openssl/x509.h> |
| # include <openssl/pem.h> |
| |
| # undef PROG |
| # define PROG dsaparam_main |
| |
| /*- |
| * -inform arg - input format - default PEM (DER or PEM) |
| * -outform arg - output format - default PEM |
| * -in arg - input file - default stdin |
| * -out arg - output file - default stdout |
| * -noout |
| * -text |
| * -C |
| * -noout |
| * -genkey |
| * #ifdef GENCB_TEST |
| * -timebomb n - interrupt keygen after <n> seconds |
| * #endif |
| */ |
| |
| # ifdef GENCB_TEST |
| |
| static int stop_keygen_flag = 0; |
| |
| static void timebomb_sigalarm(int foo) |
| { |
| stop_keygen_flag = 1; |
| } |
| |
| # endif |
| |
| static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb); |
| |
| int MAIN(int, char **); |
| |
| int MAIN(int argc, char **argv) |
| { |
| DSA *dsa = NULL; |
| int i, badops = 0, text = 0; |
| BIO *in = NULL, *out = NULL; |
| int informat, outformat, noout = 0, C = 0, ret = 1; |
| char *infile, *outfile, *prog, *inrand = NULL; |
| int numbits = -1, num, genkey = 0; |
| int need_rand = 0; |
| # ifndef OPENSSL_NO_ENGINE |
| char *engine = NULL; |
| # endif |
| # ifdef GENCB_TEST |
| int timebomb = 0; |
| # endif |
| |
| apps_startup(); |
| |
| if (bio_err == NULL) |
| if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
| BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
| |
| if (!load_config(bio_err, NULL)) |
| goto end; |
| |
| infile = NULL; |
| outfile = NULL; |
| informat = FORMAT_PEM; |
| outformat = FORMAT_PEM; |
| |
| prog = argv[0]; |
| argc--; |
| argv++; |
| while (argc >= 1) { |
| if (strcmp(*argv, "-inform") == 0) { |
| if (--argc < 1) |
| goto bad; |
| informat = str2fmt(*(++argv)); |
| } else if (strcmp(*argv, "-outform") == 0) { |
| if (--argc < 1) |
| goto bad; |
| outformat = str2fmt(*(++argv)); |
| } else if (strcmp(*argv, "-in") == 0) { |
| if (--argc < 1) |
| goto bad; |
| infile = *(++argv); |
| } else if (strcmp(*argv, "-out") == 0) { |
| if (--argc < 1) |
| goto bad; |
| outfile = *(++argv); |
| } |
| # ifndef OPENSSL_NO_ENGINE |
| else if (strcmp(*argv, "-engine") == 0) { |
| if (--argc < 1) |
| goto bad; |
| engine = *(++argv); |
| } |
| # endif |
| # ifdef GENCB_TEST |
| else if (strcmp(*argv, "-timebomb") == 0) { |
| if (--argc < 1) |
| goto bad; |
| timebomb = atoi(*(++argv)); |
| } |
| # endif |
| else if (strcmp(*argv, "-text") == 0) |
| text = 1; |
| else if (strcmp(*argv, "-C") == 0) |
| C = 1; |
| else if (strcmp(*argv, "-genkey") == 0) { |
| genkey = 1; |
| need_rand = 1; |
| } else if (strcmp(*argv, "-rand") == 0) { |
| if (--argc < 1) |
| goto bad; |
| inrand = *(++argv); |
| need_rand = 1; |
| } else if (strcmp(*argv, "-noout") == 0) |
| noout = 1; |
| else if (sscanf(*argv, "%d", &num) == 1) { |
| /* generate a key */ |
| numbits = num; |
| need_rand = 1; |
| } else { |
| BIO_printf(bio_err, "unknown option %s\n", *argv); |
| badops = 1; |
| break; |
| } |
| argc--; |
| argv++; |
| } |
| |
| if (badops) { |
| bad: |
| BIO_printf(bio_err, "%s [options] [bits] <infile >outfile\n", prog); |
| BIO_printf(bio_err, "where options are\n"); |
| BIO_printf(bio_err, " -inform arg input format - DER or PEM\n"); |
| BIO_printf(bio_err, " -outform arg output format - DER or PEM\n"); |
| BIO_printf(bio_err, " -in arg input file\n"); |
| BIO_printf(bio_err, " -out arg output file\n"); |
| BIO_printf(bio_err, " -text print as text\n"); |
| BIO_printf(bio_err, " -C Output C code\n"); |
| BIO_printf(bio_err, " -noout no output\n"); |
| BIO_printf(bio_err, " -genkey generate a DSA key\n"); |
| BIO_printf(bio_err, |
| " -rand files to use for random number input\n"); |
| # ifndef OPENSSL_NO_ENGINE |
| BIO_printf(bio_err, |
| " -engine e use engine e, possibly a hardware device.\n"); |
| # endif |
| # ifdef GENCB_TEST |
| BIO_printf(bio_err, |
| " -timebomb n interrupt keygen after <n> seconds\n"); |
| # endif |
| BIO_printf(bio_err, |
| " number number of bits to use for generating private key\n"); |
| goto end; |
| } |
| |
| ERR_load_crypto_strings(); |
| |
| in = BIO_new(BIO_s_file()); |
| out = BIO_new(BIO_s_file()); |
| if ((in == NULL) || (out == NULL)) { |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| |
| if (infile == NULL) |
| BIO_set_fp(in, stdin, BIO_NOCLOSE); |
| else { |
| if (BIO_read_filename(in, infile) <= 0) { |
| perror(infile); |
| goto end; |
| } |
| } |
| if (outfile == NULL) { |
| BIO_set_fp(out, stdout, BIO_NOCLOSE); |
| # ifdef OPENSSL_SYS_VMS |
| { |
| BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| out = BIO_push(tmpbio, out); |
| } |
| # endif |
| } else { |
| if (BIO_write_filename(out, outfile) <= 0) { |
| perror(outfile); |
| goto end; |
| } |
| } |
| |
| # ifndef OPENSSL_NO_ENGINE |
| setup_engine(bio_err, engine, 0); |
| # endif |
| |
| if (need_rand) { |
| app_RAND_load_file(NULL, bio_err, (inrand != NULL)); |
| if (inrand != NULL) |
| BIO_printf(bio_err, "%ld semi-random bytes loaded\n", |
| app_RAND_load_files(inrand)); |
| } |
| |
| if (numbits > 0) { |
| BN_GENCB cb; |
| BN_GENCB_set(&cb, dsa_cb, bio_err); |
| assert(need_rand); |
| dsa = DSA_new(); |
| if (!dsa) { |
| BIO_printf(bio_err, "Error allocating DSA object\n"); |
| goto end; |
| } |
| BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n", |
| num); |
| BIO_printf(bio_err, "This could take some time\n"); |
| # ifdef GENCB_TEST |
| if (timebomb > 0) { |
| struct sigaction act; |
| act.sa_handler = timebomb_sigalarm; |
| act.sa_flags = 0; |
| BIO_printf(bio_err, |
| "(though I'll stop it if not done within %d secs)\n", |
| timebomb); |
| if (sigaction(SIGALRM, &act, NULL) != 0) { |
| BIO_printf(bio_err, "Error, couldn't set SIGALRM handler\n"); |
| goto end; |
| } |
| alarm(timebomb); |
| } |
| # endif |
| if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, &cb)) { |
| # ifdef GENCB_TEST |
| if (stop_keygen_flag) { |
| BIO_printf(bio_err, "DSA key generation time-stopped\n"); |
| /* This is an asked-for behaviour! */ |
| ret = 0; |
| goto end; |
| } |
| # endif |
| ERR_print_errors(bio_err); |
| BIO_printf(bio_err, "Error, DSA key generation failed\n"); |
| goto end; |
| } |
| } else if (informat == FORMAT_ASN1) |
| dsa = d2i_DSAparams_bio(in, NULL); |
| else if (informat == FORMAT_PEM) |
| dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL); |
| else { |
| BIO_printf(bio_err, "bad input format specified\n"); |
| goto end; |
| } |
| if (dsa == NULL) { |
| BIO_printf(bio_err, "unable to load DSA parameters\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| |
| if (text) { |
| DSAparams_print(out, dsa); |
| } |
| |
| if (C) { |
| unsigned char *data; |
| int l, len, bits_p; |
| |
| len = BN_num_bytes(dsa->p); |
| bits_p = BN_num_bits(dsa->p); |
| data = (unsigned char *)OPENSSL_malloc(len + 20); |
| if (data == NULL) { |
| perror("OPENSSL_malloc"); |
| goto end; |
| } |
| l = BN_bn2bin(dsa->p, data); |
| printf("static unsigned char dsa%d_p[]={", bits_p); |
| for (i = 0; i < l; i++) { |
| if ((i % 12) == 0) |
| printf("\n\t"); |
| printf("0x%02X,", data[i]); |
| } |
| printf("\n\t};\n"); |
| |
| l = BN_bn2bin(dsa->q, data); |
| printf("static unsigned char dsa%d_q[]={", bits_p); |
| for (i = 0; i < l; i++) { |
| if ((i % 12) == 0) |
| printf("\n\t"); |
| printf("0x%02X,", data[i]); |
| } |
| printf("\n\t};\n"); |
| |
| l = BN_bn2bin(dsa->g, data); |
| printf("static unsigned char dsa%d_g[]={", bits_p); |
| for (i = 0; i < l; i++) { |
| if ((i % 12) == 0) |
| printf("\n\t"); |
| printf("0x%02X,", data[i]); |
| } |
| printf("\n\t};\n\n"); |
| |
| printf("DSA *get_dsa%d()\n\t{\n", bits_p); |
| printf("\tDSA *dsa;\n\n"); |
| printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n"); |
| printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n", |
| bits_p, bits_p); |
| printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n", |
| bits_p, bits_p); |
| printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n", |
| bits_p, bits_p); |
| printf |
| ("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n"); |
| printf("\t\t{ DSA_free(dsa); return(NULL); }\n"); |
| printf("\treturn(dsa);\n\t}\n"); |
| } |
| |
| if (!noout) { |
| if (outformat == FORMAT_ASN1) |
| i = i2d_DSAparams_bio(out, dsa); |
| else if (outformat == FORMAT_PEM) |
| i = PEM_write_bio_DSAparams(out, dsa); |
| else { |
| BIO_printf(bio_err, "bad output format specified for outfile\n"); |
| goto end; |
| } |
| if (!i) { |
| BIO_printf(bio_err, "unable to write DSA parameters\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| if (genkey) { |
| DSA *dsakey; |
| |
| assert(need_rand); |
| if ((dsakey = DSAparams_dup(dsa)) == NULL) |
| goto end; |
| if (!DSA_generate_key(dsakey)) { |
| ERR_print_errors(bio_err); |
| DSA_free(dsakey); |
| goto end; |
| } |
| if (outformat == FORMAT_ASN1) |
| i = i2d_DSAPrivateKey_bio(out, dsakey); |
| else if (outformat == FORMAT_PEM) |
| i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL, |
| NULL); |
| else { |
| BIO_printf(bio_err, "bad output format specified for outfile\n"); |
| DSA_free(dsakey); |
| goto end; |
| } |
| DSA_free(dsakey); |
| } |
| if (need_rand) |
| app_RAND_write_file(NULL, bio_err); |
| ret = 0; |
| end: |
| if (in != NULL) |
| BIO_free(in); |
| if (out != NULL) |
| BIO_free_all(out); |
| if (dsa != NULL) |
| DSA_free(dsa); |
| apps_shutdown(); |
| OPENSSL_EXIT(ret); |
| } |
| |
| static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb) |
| { |
| char c = '*'; |
| |
| if (p == 0) |
| c = '.'; |
| if (p == 1) |
| c = '+'; |
| if (p == 2) |
| c = '*'; |
| if (p == 3) |
| c = '\n'; |
| BIO_write(cb->arg, &c, 1); |
| (void)BIO_flush(cb->arg); |
| # ifdef LINT |
| p = n; |
| # endif |
| # ifdef GENCB_TEST |
| if (stop_keygen_flag) |
| return 0; |
| # endif |
| return 1; |
| } |
| #else /* !OPENSSL_NO_DSA */ |
| |
| # if PEDANTIC |
| static void *dummy = &dummy; |
| # endif |
| |
| #endif |
