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authorWilliam Joye <wjoye@cfa.harvard.edu>2017-05-02 16:41:35 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2017-05-02 16:41:35 (GMT)
commit3d328008deedc58cd7a11c79063cefa7d662d4fc (patch)
treecb41a048885ce7b493f406360cf5f6edf689c468 /openssl/apps/gendsa.c
parent0a2b8b8e0bc2e91a9f10659b30e2e4f5b79ce692 (diff)
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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;
+ 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