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/* apps/gendsa.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 */
#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;
#ifndef OPENSSL_NO_ENGINE
char *engine=NULL;
#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;
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;
}
#ifndef OPENSSL_NO_ENGINE
setup_engine(bio_err, engine, 0);
#endif
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);
if(passout) OPENSSL_free(passout);
apps_shutdown();
OPENSSL_EXIT(ret);
}
#else /* !OPENSSL_NO_DSA */
# if PEDANTIC
static void *dummy=&dummy;
# endif
#endif
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