/* apps/gendsa.c */
/* Copyright (C) 1995-1998 Eric Young ([email protected])
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young ([email protected]).
* 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 ([email protected]).
*
* 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 ([email protected])"
* 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 ([email protected])"
*
* 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 */
#ifndef OPENSSL_NO_DSA
# include <stdio.h>
# include <string.h>
# include <sys/types.h>
# include <sys/stat.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>
# define DEFBITS 512
# undef PROG
# define PROG gendsa_main
int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
DSA *dsa = NULL;
int ret = 1;
char *outfile = NULL;
char *inrand = NULL, *dsaparams = NULL;
char *passargout = NULL, *passout = NULL;
BIO *out = NULL, *in = NULL;
const EVP_CIPHER *enc = NULL;
char *engine = NULL;
ENGINE *e = NULL;
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;
argv++;
argc--;
for (;;) {
if (argc <= 0)
break;
if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
goto bad;
outfile = *(++argv);
} else if (strcmp(*argv, "-passout") == 0) {
if (--argc < 1)
goto bad;
passargout = *(++argv);
}
# ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv, "-engine") == 0) {
if (--argc < 1)
goto bad;
engine = *(++argv);
}
# endif
else if (strcmp(*argv, "-rand") == 0) {
if (--argc < 1)
goto bad;
inrand = *(++argv);
} else if (strcmp(*argv, "-") == 0)
goto bad;
# ifndef OPENSSL_NO_DES
else if (strcmp(*argv, "-des") == 0)
enc = EVP_des_cbc();
else if (strcmp(*argv, "-des3") == 0)
enc = EVP_des_ede3_cbc();
# endif
# ifndef OPENSSL_NO_IDEA
else if (strcmp(*argv, "-idea") == 0)
enc = EVP_idea_cbc();
# endif
# ifndef OPENSSL_NO_SEED
else if (strcmp(*argv, "-seed") == 0)
enc = EVP_seed_cbc();
# endif
# ifndef OPENSSL_NO_AES
else if (strcmp(*argv, "-aes128") == 0)
enc = EVP_aes_128_cbc();
else if (strcmp(*argv, "-aes192") == 0)
enc = EVP_aes_192_cbc();
else if (strcmp(*argv, "-aes256") == 0)
enc = EVP_aes_256_cbc();
# endif
# ifndef OPENSSL_NO_CAMELLIA
else if (strcmp(*argv, "-camellia128") == 0)
enc = EVP_camellia_128_cbc();
else if (strcmp(*argv, "-camellia192") == 0)
enc = EVP_camellia_192_cbc();
else if (strcmp(*argv, "-camellia256") == 0)
enc = EVP_camellia_256_cbc();
# endif
else if (**argv != '-' && dsaparams == NULL) {
dsaparams = *argv;
} else
goto bad;
argv++;
argc--;
}
if (dsaparams == NULL) {
bad:
BIO_printf(bio_err, "usage: gendsa [args] dsaparam-file\n");
BIO_printf(bio_err, " -out file - output the key to 'file'\n");
# ifndef OPENSSL_NO_DES
BIO_printf(bio_err,
" -des - encrypt the generated key with DES in cbc mode\n");
BIO_printf(bio_err,
" -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
# endif
# ifndef OPENSSL_NO_IDEA
BIO_printf(bio_err,
" -idea - encrypt the generated key with IDEA in cbc mode\n");
# endif
# ifndef OPENSSL_NO_SEED
BIO_printf(bio_err, " -seed\n");
BIO_printf(bio_err,
" encrypt PEM output with cbc seed\n");
# endif
# ifndef OPENSSL_NO_AES
BIO_printf(bio_err, " -aes128, -aes192, -aes256\n");
BIO_printf(bio_err,
" encrypt PEM output with cbc aes\n");
# endif
# ifndef OPENSSL_NO_CAMELLIA
BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n");
BIO_printf(bio_err,
" encrypt PEM output with cbc camellia\n");
# endif
# ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err,
" -engine e - use engine e, possibly a hardware device.\n");
# endif
BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
LIST_SEPARATOR_CHAR);
BIO_printf(bio_err,
" - load the file (or the files in the directory) into\n");
BIO_printf(bio_err, " the random number generator\n");
BIO_printf(bio_err, " dsaparam-file\n");
BIO_printf(bio_err,
" - a DSA parameter file as generated by the dsaparam command\n");
goto end;
}
e = setup_engine(bio_err, engine, 0);
if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
in = BIO_new(BIO_s_file());
if (!(BIO_read_filename(in, dsaparams))) {
perror(dsaparams);
goto end;
}
if ((dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL)) == NULL) {
BIO_printf(bio_err, "unable to load DSA parameter file\n");
goto end;
}
BIO_free(in);
in = NULL;
out = BIO_new(BIO_s_file());
if (out == NULL)
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;
}
}
if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) {
BIO_printf(bio_err,
"warning, not much extra random data, consider using the -rand option\n");
}
if (inrand != NULL)
BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(dsa->p));
if (!DSA_generate_key(dsa))
goto end;
app_RAND_write_file(NULL, bio_err);
if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout))
goto end;
ret = 0;
end:
if (ret != 0)
ERR_print_errors(bio_err);
if (in != NULL)
BIO_free(in);
if (out != NULL)
BIO_free_all(out);
if (dsa != NULL)
DSA_free(dsa);
release_engine(e);
if (passout)
OPENSSL_free(passout);
apps_shutdown();
OPENSSL_EXIT(ret);
}
#else /* !OPENSSL_NO_DSA */
# if PEDANTIC
static void *dummy = &dummy;
# endif
#endif