-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. 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.]
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
+#include <openssl/opensslconf.h>
+#ifdef OPENSSL_NO_DSA
+NON_EMPTY_TRANSLATION_UNIT
+#else
-#ifndef OPENSSL_NO_DSA
-# include <assert.h>
# include <stdio.h>
# include <stdlib.h>
# include <time.h>
# include <string.h>
# include "apps.h"
+# include "progs.h"
# include <openssl/bio.h>
# include <openssl/err.h>
# include <openssl/bn.h>
# include <openssl/x509.h>
# include <openssl/pem.h>
-# ifdef GENCB_TEST
-
-static int stop_keygen_flag = 0;
-
-static void timebomb_sigalarm(int foo)
-{
- stop_keygen_flag = 1;
-}
-
-# endif
-
static int dsa_cb(int p, int n, BN_GENCB *cb);
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, OPT_C,
- OPT_NOOUT, OPT_GENKEY, OPT_RAND, OPT_NON_FIPS_ALLOW, OPT_ENGINE,
- OPT_TIMEBOMB
+ OPT_NOOUT, OPT_GENKEY, OPT_ENGINE, OPT_R_ENUM
} OPTION_CHOICE;
-OPTIONS dsaparam_options[] = {
+const OPTIONS dsaparam_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
{"in", OPT_IN, '<', "Input file"},
{"C", OPT_C, '-', "Output C code"},
{"noout", OPT_NOOUT, '-', "No output"},
{"genkey", OPT_GENKEY, '-', "Generate a DSA key"},
- {"rand", OPT_RAND, 's', "Files to use for random number input"},
- {"non-fips-allow", OPT_NON_FIPS_ALLOW, '-'},
+ OPT_R_OPTIONS,
# ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
-# endif
-# ifdef GENCB_TEST
- {"timebomb", OPT_TIMEBOMB, 'p', "Interrupt keygen after 'pnum' seconds"},
# endif
{NULL}
};
int dsaparam_main(int argc, char **argv)
{
+ ENGINE *e = NULL;
DSA *dsa = NULL;
BIO *in = NULL, *out = NULL;
BN_GENCB *cb = NULL;
- int numbits = -1, num = 0, genkey = 0, need_rand = 0, non_fips_allow = 0;
- int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0, ret =
- 1;
- int i, text = 0;
-# ifdef GENCB_TEST
- int timebomb = 0;
-# endif
- char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL;
+ int numbits = -1, num = 0, genkey = 0;
+ int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0;
+ int ret = 1, i, text = 0, private = 0;
+ char *infile = NULL, *outfile = NULL, *prog;
OPTION_CHOICE o;
prog = opt_init(argc, argv, dsaparam_options);
outfile = opt_arg();
break;
case OPT_ENGINE:
- (void)setup_engine(opt_arg(), 0);
- break;
- case OPT_TIMEBOMB:
-# ifdef GENCB_TEST
- timebomb = atoi(opt_arg());
+ e = setup_engine(opt_arg(), 0);
break;
-# endif
case OPT_TEXT:
text = 1;
break;
C = 1;
break;
case OPT_GENKEY:
- genkey = need_rand = 1;
+ genkey = 1;
break;
- case OPT_RAND:
- inrand = opt_arg();
- need_rand = 1;
+ case OPT_R_CASES:
+ if (!opt_rand(o))
+ goto end;
break;
case OPT_NOOUT:
noout = 1;
break;
- case OPT_NON_FIPS_ALLOW:
- non_fips_allow = 1;
- break;
}
}
argc = opt_num_rest();
argv = opt_rest();
- if (!app_load_modules(NULL))
- goto end;
-
if (argc == 1) {
- if (!opt_int(argv[0], &num))
+ if (!opt_int(argv[0], &num) || num < 0)
goto end;
/* generate a key */
numbits = num;
- need_rand = 1;
}
+ private = genkey ? 1 : 0;
- in = bio_open_default(infile, "r");
+ in = bio_open_default(infile, 'r', informat);
if (in == NULL)
goto end;
- out = bio_open_default(outfile, "w");
+ out = bio_open_owner(outfile, outformat, private);
if (out == NULL)
goto end;
- if (need_rand) {
- app_RAND_load_file(NULL, (inrand != NULL));
- if (inrand != NULL)
- BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
- app_RAND_load_files(inrand));
- }
-
if (numbits > 0) {
+ if (numbits > OPENSSL_DSA_MAX_MODULUS_BITS)
+ BIO_printf(bio_err,
+ "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
+ " Your key size is %d! Larger key size may behave not as expected.\n",
+ OPENSSL_DSA_MAX_MODULUS_BITS, numbits);
+
cb = BN_GENCB_new();
- if (!cb) {
+ if (cb == NULL) {
BIO_printf(bio_err, "Error allocating BN_GENCB object\n");
goto end;
}
BN_GENCB_set(cb, dsa_cb, bio_err);
- assert(need_rand);
dsa = DSA_new();
- if (!dsa) {
+ if (dsa == NULL) {
BIO_printf(bio_err, "Error allocating DSA object\n");
goto end;
}
- if (non_fips_allow)
- dsa->flags |= DSA_FLAG_NON_FIPS_ALLOW;
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)
+ } else if (informat == FORMAT_ASN1) {
dsa = d2i_DSAparams_bio(in, NULL);
- else
+ } else {
dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL);
+ }
if (dsa == NULL) {
BIO_printf(bio_err, "unable to load DSA parameters\n");
ERR_print_errors(bio_err);
}
if (C) {
- int len = BN_num_bytes(dsa->p);
- int bits_p = BN_num_bits(dsa->p);
- unsigned char *data = app_malloc(len + 20, "BN space");
+ const BIGNUM *p = NULL, *q = NULL, *g = NULL;
+ unsigned char *data;
+ int len, bits_p;
+
+ DSA_get0_pqg(dsa, &p, &q, &g);
+ len = BN_num_bytes(p);
+ bits_p = BN_num_bits(p);
- BIO_printf(bio_out, "DSA *get_dsa%d()\n{\n", bits_p);
- print_bignum_var(bio_out, dsa->p, "dsap", len, data);
- print_bignum_var(bio_out, dsa->q, "dsaq", len, data);
- print_bignum_var(bio_out, dsa->g, "dsag", len, data);
+ data = app_malloc(len + 20, "BN space");
+
+ BIO_printf(bio_out, "static DSA *get_dsa%d(void)\n{\n", bits_p);
+ print_bignum_var(bio_out, p, "dsap", bits_p, data);
+ print_bignum_var(bio_out, q, "dsaq", bits_p, data);
+ print_bignum_var(bio_out, g, "dsag", bits_p, data);
BIO_printf(bio_out, " DSA *dsa = DSA_new();\n"
+ " BIGNUM *p, *q, *g;\n"
"\n");
BIO_printf(bio_out, " if (dsa == NULL)\n"
" return NULL;\n");
- BIO_printf(bio_out, " dsa->p = BN_bin2bn(dsap_%d, sizeof (dsap_%d), NULL);\n",
- bits_p, bits_p);
- BIO_printf(bio_out, " dsa->q = BN_bin2bn(dsaq_%d, sizeof (dsaq_%d), NULL);\n",
- bits_p, bits_p);
- BIO_printf(bio_out, " dsa->g = BN_bin2bn(dsag_%d, sizeof (dsag_%d), NULL);\n",
- bits_p, bits_p);
- BIO_printf(bio_out, " if (!dsa->p || !dsa->q || !dsa->g) {\n"
- " DSA_free(dsa);\n"
+ BIO_printf(bio_out, " if (!DSA_set0_pqg(dsa, p = BN_bin2bn(dsap_%d, sizeof(dsap_%d), NULL),\n",
+ bits_p, bits_p);
+ BIO_printf(bio_out, " q = BN_bin2bn(dsaq_%d, sizeof(dsaq_%d), NULL),\n",
+ bits_p, bits_p);
+ BIO_printf(bio_out, " g = BN_bin2bn(dsag_%d, sizeof(dsag_%d), NULL))) {\n",
+ bits_p, bits_p);
+ BIO_printf(bio_out, " DSA_free(dsa);\n"
+ " BN_free(p);\n"
+ " BN_free(q);\n"
+ " BN_free(g);\n"
" return NULL;\n"
" }\n"
- " return(dsa);\n}\n");
+ " return dsa;\n}\n");
+ OPENSSL_free(data);
}
+ if (outformat == FORMAT_ASN1 && genkey)
+ noout = 1;
+
if (!noout) {
if (outformat == FORMAT_ASN1)
i = i2d_DSAparams_bio(out, dsa);
if (genkey) {
DSA *dsakey;
- assert(need_rand);
if ((dsakey = DSAparams_dup(dsa)) == NULL)
goto end;
- if (non_fips_allow)
- dsakey->flags |= DSA_FLAG_NON_FIPS_ALLOW;
if (!DSA_generate_key(dsakey)) {
ERR_print_errors(bio_err);
DSA_free(dsakey);
goto end;
}
+ assert(private);
if (outformat == FORMAT_ASN1)
i = i2d_DSAPrivateKey_bio(out, dsakey);
else
NULL);
DSA_free(dsakey);
}
- if (need_rand)
- app_RAND_write_file(NULL);
ret = 0;
end:
BN_GENCB_free(cb);
BIO_free(in);
BIO_free_all(out);
DSA_free(dsa);
- return (ret);
+ release_engine(e);
+ return ret;
}
static int dsa_cb(int p, int n, BN_GENCB *cb)
{
- char c = '*';
+ static const char symbols[] = ".+*\n";
+ char c = (p >= 0 && (size_t)p < sizeof(symbols) - 1) ? symbols[p] : '?';
- if (p == 0)
- c = '.';
- if (p == 1)
- c = '+';
- if (p == 2)
- c = '*';
- if (p == 3)
- c = '\n';
BIO_write(BN_GENCB_get_arg(cb), &c, 1);
(void)BIO_flush(BN_GENCB_get_arg(cb));
-# ifdef GENCB_TEST
- if (stop_keygen_flag)
- return 0;
-# endif
return 1;
}
-#else /* !OPENSSL_NO_DSA */
-
-# if PEDANTIC
-static void *dummy = &dummy;
-# endif
-
#endif