-/* 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:
* 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
+ * 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
* 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.]
*/
-#ifndef 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/rand.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
-
-static long dsa_load_rand(char *names);
-int MAIN(int argc, char **argv)
- {
- char buffer[200];
- DSA *dsa=NULL;
- int ret=1;
- char *outfile=NULL;
- char *inrand=NULL,*randfile,*dsaparams=NULL;
- BIO *out=NULL,*in=NULL;
- EVP_CIPHER *enc=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);
-
- argv++;
- argc--;
- for (;;)
- {
- if (argc <= 0) break;
- if (strcmp(*argv,"-out") == 0)
- {
- if (--argc < 1) goto bad;
- outfile= *(++argv);
- }
- else if (strcmp(*argv,"-rand") == 0)
- {
- if (--argc < 1) goto bad;
- inrand= *(++argv);
- }
- else if (strcmp(*argv,"-") == 0)
- goto bad;
-#ifndef 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 NO_IDEA
- else if (strcmp(*argv,"-idea") == 0)
- enc=EVP_idea_cbc();
-#endif
- else if (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 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 NO_IDEA
- BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n");
-#endif
- BIO_printf(bio_err," -rand file:file:...\n");
- 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;
- }
-
- 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);
-
- out=BIO_new(BIO_s_file());
- if (out == NULL) goto end;
-
- if (outfile == NULL)
- BIO_set_fp(out,stdout,BIO_NOCLOSE);
- else
- {
- if (BIO_write_filename(out,outfile) <= 0)
- {
- perror(outfile);
- goto end;
- }
- }
-
- randfile=RAND_file_name(buffer,200);
- if ((randfile == NULL)|| !RAND_load_file(randfile,1024L*1024L))
- BIO_printf(bio_err,"unable to load 'random state'\n");
-
- if (inrand == NULL)
- BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
- else
- {
- BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
- dsa_load_rand(inrand));
- }
-
- BIO_printf(bio_err,"Generating DSA key, %d bits\n",
- BN_num_bits(dsa->p));
- if (!DSA_generate_key(dsa)) goto end;
-
- if (randfile == NULL)
- BIO_printf(bio_err,"unable to write 'random state'\n");
- else
- RAND_write_file(randfile);
-
- if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL,NULL))
- goto end;
- ret=0;
-end:
- if (ret != 0)
- ERR_print_errors(bio_err);
- if (out != NULL) BIO_free(out);
- if (dsa != NULL) DSA_free(dsa);
- EXIT(ret);
- }
-
-static long dsa_load_rand(char *name)
- {
- char *p,*n;
- int last;
- long tot=0;
-
- for (;;)
- {
- last=0;
- for (p=name; ((*p != '\0') && (*p != LIST_SEPARATOR_CHAR)); p++);
- if (*p == '\0') last=1;
- *p='\0';
- n=name;
- name=p+1;
- if (*n == '\0') break;
-
- tot+=RAND_load_file(n,1);
- if (last) break;
- }
- return(tot);
- }
+#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
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_OUT, OPT_PASSOUT, OPT_ENGINE, OPT_RAND, OPT_CIPHER
+} OPTION_CHOICE;
+
+OPTIONS gendsa_options[] = {
+ {OPT_HELP_STR, 1, '-', "Usage: %s [args] dsaparam-file\n"},
+ {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"out", OPT_OUT, '>', "Output the key to the specified file"},
+ {"passout", OPT_PASSOUT, 's'},
+ {"rand", OPT_RAND, 's',
+ "Load the file(s) into the random number generator"},
+ {"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"},
+# ifndef OPENSSL_NO_ENGINE
+ {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
+# endif
+ {NULL}
+};
+
+int gendsa_main(int argc, char **argv)
+{
+ BIO *out = NULL, *in = NULL;
+ DSA *dsa = NULL;
+ const EVP_CIPHER *enc = NULL;
+ char *inrand = NULL, *dsaparams = NULL;
+ char *outfile = NULL, *passoutarg = NULL, *passout = NULL, *prog;
+ OPTION_CHOICE o;
+ int ret = 1, private = 0;
+
+ prog = opt_init(argc, argv, gendsa_options);
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+ opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ ret = 0;
+ opt_help(gendsa_options);
+ goto end;
+ case OPT_OUT:
+ outfile = opt_arg();
+ break;
+ case OPT_PASSOUT:
+ passoutarg = opt_arg();
+ break;
+ case OPT_ENGINE:
+ (void)setup_engine(opt_arg(), 0);
+ break;
+ case OPT_RAND:
+ inrand = opt_arg();
+ break;
+ case OPT_CIPHER:
+ if (!opt_cipher(opt_unknown(), &enc))
+ goto end;
+ break;
+ }
+ }
+ argc = opt_num_rest();
+ argv = opt_rest();
+ private = 1;
+
+ if (argc != 1)
+ goto opthelp;
+ dsaparams = *argv;
+
+ if (!app_passwd(NULL, passoutarg, NULL, &passout)) {
+ BIO_printf(bio_err, "Error getting password\n");
+ goto end;
+ }
+
+ if (!app_load_modules(NULL))
+ goto end;
+
+ in = bio_open_default(dsaparams, 'r', FORMAT_PEM);
+ if (in == NULL)
+ goto end2;
+
+ 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_open_owner(outfile, FORMAT_PEM, private);
+ if (out == NULL)
+ goto end2;
+
+ if (!app_RAND_load_file(NULL, 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);
+
+ assert(private);
+ 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);
+ end2:
+ BIO_free(in);
+ BIO_free_all(out);
+ DSA_free(dsa);
+ OPENSSL_free(passout);
+ return (ret);
+}
+#else /* !OPENSSL_NO_DSA */
+
+# if PEDANTIC
+static void *dummy = &dummy;
+# endif
+
#endif
projects / openssl.git / blobdiff