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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
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Diffstat (limited to 'openssl/apps/gendh.c')
-rw-r--r--openssl/apps/gendh.c238
1 files changed, 238 insertions, 0 deletions
diff --git a/openssl/apps/gendh.c b/openssl/apps/gendh.c
new file mode 100644
index 000000000..47497864b
--- /dev/null
+++ b/openssl/apps/gendh.c
@@ -0,0 +1,238 @@
+/* apps/gendh.c */
+/* obsoleted by dhparam.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>
+/* 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_DH
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "apps.h"
+#include <openssl/bio.h>
+#include <openssl/rand.h>
+#include <openssl/err.h>
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+#include <openssl/x509.h>
+#include <openssl/pem.h>
+
+#define DEFBITS 512
+#undef PROG
+#define PROG gendh_main
+
+static int MS_CALLBACK dh_cb(int p, int n, BN_GENCB *cb);
+
+int MAIN(int, char **);
+
+int MAIN(int argc, char **argv)
+ {
+ BN_GENCB cb;
+#ifndef OPENSSL_NO_ENGINE
+ ENGINE *e = NULL;
+#endif
+ DH *dh=NULL;
+ int ret=1,num=DEFBITS;
+ int g=2;
+ char *outfile=NULL;
+ char *inrand=NULL;
+#ifndef OPENSSL_NO_ENGINE
+ char *engine=NULL;
+#endif
+ BIO *out=NULL;
+
+ apps_startup();
+
+ BN_GENCB_set(&cb, dh_cb, bio_err);
+ 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,"-2") == 0)
+ g=2;
+ /* else if (strcmp(*argv,"-3") == 0)
+ g=3; */
+ else if (strcmp(*argv,"-5") == 0)
+ g=5;
+#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
+ break;
+ argv++;
+ argc--;
+ }
+ if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
+ {
+bad:
+ BIO_printf(bio_err,"usage: gendh [args] [numbits]\n");
+ BIO_printf(bio_err," -out file - output the key to 'file\n");
+ BIO_printf(bio_err," -2 - use 2 as the generator value\n");
+ /* BIO_printf(bio_err," -3 - use 3 as the generator value\n"); */
+ BIO_printf(bio_err," -5 - use 5 as the generator value\n");
+#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");
+ goto end;
+ }
+
+#ifndef OPENSSL_NO_ENGINE
+ e = setup_engine(bio_err, engine, 0);
+#endif
+
+ out=BIO_new(BIO_s_file());
+ if (out == NULL)
+ {
+ ERR_print_errors(bio_err);
+ 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 DH parameters, %d bit long safe prime, generator %d\n",num,g);
+ BIO_printf(bio_err,"This is going to take a long time\n");
+
+ if(((dh = DH_new()) == NULL) || !DH_generate_parameters_ex(dh, num, g, &cb))
+ goto end;
+
+ app_RAND_write_file(NULL, bio_err);
+
+ if (!PEM_write_bio_DHparams(out,dh))
+ goto end;
+ ret=0;
+end:
+ if (ret != 0)
+ ERR_print_errors(bio_err);
+ if (out != NULL) BIO_free_all(out);
+ if (dh != NULL) DH_free(dh);
+ apps_shutdown();
+ OPENSSL_EXIT(ret);
+ }
+
+static int MS_CALLBACK dh_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
+ return 1;
+ }
+#endif