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-rw-r--r--apps/dsaparam.c524
1 files changed, 156 insertions, 368 deletions
diff --git a/apps/dsaparam.c b/apps/dsaparam.c
index 3a4a123846c4..b227b76a3723 100644
--- a/apps/dsaparam.c
+++ b/apps/dsaparam.c
@@ -1,77 +1,23 @@
-/* apps/dsaparam.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.
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
-/*
- * 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
+#include <openssl/opensslconf.h>
+#ifdef OPENSSL_NO_DSA
+NON_EMPTY_TRANSLATION_UNIT
+#else
-#ifndef OPENSSL_NO_DSA
-# include <assert.h>
# include <stdio.h>
# include <stdlib.h>
# include <time.h>
# include <string.h>
# include "apps.h"
+# include "progs.h"
# include <openssl/bio.h>
# include <openssl/err.h>
# include <openssl/bn.h>
@@ -79,245 +25,138 @@
# include <openssl/x509.h>
# include <openssl/pem.h>
-# undef PROG
-# define PROG dsaparam_main
-
-/*-
- * -inform arg - input format - default PEM (DER or PEM)
- * -outform arg - output format - default PEM
- * -in arg - input file - default stdin
- * -out arg - output file - default stdout
- * -noout
- * -text
- * -C
- * -noout
- * -genkey
- * #ifdef GENCB_TEST
- * -timebomb n - interrupt keygen after <n> seconds
- * #endif
- */
-
-# ifdef GENCB_TEST
-
-static int stop_keygen_flag = 0;
-
-static void timebomb_sigalarm(int foo)
-{
- stop_keygen_flag = 1;
-}
-
+static int dsa_cb(int p, int n, BN_GENCB *cb);
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, OPT_C,
+ OPT_NOOUT, OPT_GENKEY, OPT_ENGINE, OPT_R_ENUM
+} OPTION_CHOICE;
+
+const OPTIONS dsaparam_options[] = {
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
+ {"in", OPT_IN, '<', "Input file"},
+ {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
+ {"out", OPT_OUT, '>', "Output file"},
+ {"text", OPT_TEXT, '-', "Print as text"},
+ {"C", OPT_C, '-', "Output C code"},
+ {"noout", OPT_NOOUT, '-', "No output"},
+ {"genkey", OPT_GENKEY, '-', "Generate a DSA key"},
+ OPT_R_OPTIONS,
+# ifndef OPENSSL_NO_ENGINE
+ {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
# endif
+ {NULL}
+};
-static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb);
-
-int MAIN(int, char **);
-
-int MAIN(int argc, char **argv)
+int dsaparam_main(int argc, char **argv)
{
+ ENGINE *e = NULL;
DSA *dsa = NULL;
- int i, badops = 0, text = 0;
BIO *in = NULL, *out = NULL;
- int informat, outformat, noout = 0, C = 0, ret = 1;
- char *infile, *outfile, *prog, *inrand = NULL;
- int numbits = -1, num, genkey = 0;
- int need_rand = 0;
- char *engine = NULL;
- ENGINE *e = NULL;
-# ifdef GENCB_TEST
- int timebomb = 0;
-# 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;
-
- infile = NULL;
- outfile = NULL;
- informat = FORMAT_PEM;
- outformat = FORMAT_PEM;
-
- prog = argv[0];
- argc--;
- argv++;
- while (argc >= 1) {
- if (strcmp(*argv, "-inform") == 0) {
- if (--argc < 1)
- goto bad;
- informat = str2fmt(*(++argv));
- } else if (strcmp(*argv, "-outform") == 0) {
- if (--argc < 1)
- goto bad;
- outformat = str2fmt(*(++argv));
- } else if (strcmp(*argv, "-in") == 0) {
- if (--argc < 1)
- goto bad;
- infile = *(++argv);
- } else if (strcmp(*argv, "-out") == 0) {
- if (--argc < 1)
- goto bad;
- outfile = *(++argv);
- }
-# ifndef OPENSSL_NO_ENGINE
- else if (strcmp(*argv, "-engine") == 0) {
- if (--argc < 1)
- goto bad;
- engine = *(++argv);
- }
-# endif
-# ifdef GENCB_TEST
- else if (strcmp(*argv, "-timebomb") == 0) {
- if (--argc < 1)
- goto bad;
- timebomb = atoi(*(++argv));
- }
-# endif
- else if (strcmp(*argv, "-text") == 0)
+ BN_GENCB *cb = NULL;
+ int numbits = -1, num = 0, genkey = 0;
+ int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0;
+ int ret = 1, i, text = 0, private = 0;
+ char *infile = NULL, *outfile = NULL, *prog;
+ OPTION_CHOICE o;
+
+ prog = opt_init(argc, argv, dsaparam_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:
+ opt_help(dsaparam_options);
+ ret = 0;
+ goto end;
+ case OPT_INFORM:
+ if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
+ goto opthelp;
+ break;
+ case OPT_IN:
+ infile = opt_arg();
+ break;
+ case OPT_OUTFORM:
+ if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
+ goto opthelp;
+ break;
+ case OPT_OUT:
+ outfile = opt_arg();
+ break;
+ case OPT_ENGINE:
+ e = setup_engine(opt_arg(), 0);
+ break;
+ case OPT_TEXT:
text = 1;
- else if (strcmp(*argv, "-C") == 0)
+ break;
+ case OPT_C:
C = 1;
- else if (strcmp(*argv, "-genkey") == 0) {
+ break;
+ case OPT_GENKEY:
genkey = 1;
- need_rand = 1;
- } else if (strcmp(*argv, "-rand") == 0) {
- if (--argc < 1)
- goto bad;
- inrand = *(++argv);
- need_rand = 1;
- } else if (strcmp(*argv, "-noout") == 0)
+ break;
+ case OPT_R_CASES:
+ if (!opt_rand(o))
+ goto end;
+ break;
+ case OPT_NOOUT:
noout = 1;
- else if (sscanf(*argv, "%d", &num) == 1) {
- /* generate a key */
- numbits = num;
- need_rand = 1;
- } else {
- BIO_printf(bio_err, "unknown option %s\n", *argv);
- badops = 1;
break;
}
- argc--;
- argv++;
}
+ argc = opt_num_rest();
+ argv = opt_rest();
- if (badops) {
- bad:
- BIO_printf(bio_err, "%s [options] [bits] <infile >outfile\n", prog);
- BIO_printf(bio_err, "where options are\n");
- BIO_printf(bio_err, " -inform arg input format - DER or PEM\n");
- BIO_printf(bio_err, " -outform arg output format - DER or PEM\n");
- BIO_printf(bio_err, " -in arg input file\n");
- BIO_printf(bio_err, " -out arg output file\n");
- BIO_printf(bio_err, " -text print as text\n");
- BIO_printf(bio_err, " -C Output C code\n");
- BIO_printf(bio_err, " -noout no output\n");
- BIO_printf(bio_err, " -genkey generate a DSA key\n");
- BIO_printf(bio_err,
- " -rand files to use for random number input\n");
-# ifndef OPENSSL_NO_ENGINE
- BIO_printf(bio_err,
- " -engine e use engine e, possibly a hardware device.\n");
-# endif
-# ifdef GENCB_TEST
- BIO_printf(bio_err,
- " -timebomb n interrupt keygen after <n> seconds\n");
-# endif
- BIO_printf(bio_err,
- " number number of bits to use for generating private key\n");
- goto end;
+ if (argc == 1) {
+ if (!opt_int(argv[0], &num) || num < 0)
+ goto end;
+ /* generate a key */
+ numbits = num;
}
+ private = genkey ? 1 : 0;
- ERR_load_crypto_strings();
-
- in = BIO_new(BIO_s_file());
- out = BIO_new(BIO_s_file());
- if ((in == NULL) || (out == NULL)) {
- ERR_print_errors(bio_err);
+ in = bio_open_default(infile, 'r', informat);
+ if (in == NULL)
+ goto end;
+ out = bio_open_owner(outfile, outformat, private);
+ if (out == NULL)
goto end;
- }
- if (infile == NULL)
- BIO_set_fp(in, stdin, BIO_NOCLOSE);
- else {
- if (BIO_read_filename(in, infile) <= 0) {
- perror(infile);
- 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);
+ if (numbits > 0) {
+ if (numbits > OPENSSL_DSA_MAX_MODULUS_BITS)
+ BIO_printf(bio_err,
+ "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
+ " Your key size is %d! Larger key size may behave not as expected.\n",
+ OPENSSL_DSA_MAX_MODULUS_BITS, numbits);
+
+ cb = BN_GENCB_new();
+ if (cb == NULL) {
+ BIO_printf(bio_err, "Error allocating BN_GENCB object\n");
goto end;
}
- }
-
- e = setup_engine(bio_err, engine, 0);
-
- if (need_rand) {
- app_RAND_load_file(NULL, bio_err, (inrand != NULL));
- if (inrand != NULL)
- BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
- app_RAND_load_files(inrand));
- }
-
- if (numbits > 0) {
- BN_GENCB cb;
- BN_GENCB_set(&cb, dsa_cb, bio_err);
- assert(need_rand);
+ BN_GENCB_set(cb, dsa_cb, bio_err);
dsa = DSA_new();
- if (!dsa) {
+ if (dsa == NULL) {
BIO_printf(bio_err, "Error allocating DSA object\n");
goto end;
}
BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n",
num);
BIO_printf(bio_err, "This could take some time\n");
-# ifdef GENCB_TEST
- if (timebomb > 0) {
- struct sigaction act;
- act.sa_handler = timebomb_sigalarm;
- act.sa_flags = 0;
- BIO_printf(bio_err,
- "(though I'll stop it if not done within %d secs)\n",
- timebomb);
- if (sigaction(SIGALRM, &act, NULL) != 0) {
- BIO_printf(bio_err, "Error, couldn't set SIGALRM handler\n");
- goto end;
- }
- alarm(timebomb);
- }
-# endif
- if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, &cb)) {
-# ifdef GENCB_TEST
- if (stop_keygen_flag) {
- BIO_printf(bio_err, "DSA key generation time-stopped\n");
- /* This is an asked-for behaviour! */
- ret = 0;
- goto end;
- }
-# endif
+ if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) {
ERR_print_errors(bio_err);
BIO_printf(bio_err, "Error, DSA key generation failed\n");
goto end;
}
- } else if (informat == FORMAT_ASN1)
+ } else if (informat == FORMAT_ASN1) {
dsa = d2i_DSAparams_bio(in, NULL);
- else if (informat == FORMAT_PEM)
+ } else {
dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL);
- else {
- BIO_printf(bio_err, "bad input format specified\n");
- goto end;
}
if (dsa == NULL) {
BIO_printf(bio_err, "unable to load DSA parameters\n");
@@ -330,56 +169,39 @@ int MAIN(int argc, char **argv)
}
if (C) {
+ const BIGNUM *p = NULL, *q = NULL, *g = NULL;
unsigned char *data;
- int l, len, bits_p;
-
- len = BN_num_bytes(dsa->p);
- bits_p = BN_num_bits(dsa->p);
- data = (unsigned char *)OPENSSL_malloc(len + 20);
- if (data == NULL) {
- perror("OPENSSL_malloc");
- goto end;
- }
- l = BN_bn2bin(dsa->p, data);
- printf("static unsigned char dsa%d_p[]={", bits_p);
- for (i = 0; i < l; i++) {
- if ((i % 12) == 0)
- printf("\n\t");
- printf("0x%02X,", data[i]);
- }
- printf("\n\t};\n");
-
- l = BN_bn2bin(dsa->q, data);
- printf("static unsigned char dsa%d_q[]={", bits_p);
- for (i = 0; i < l; i++) {
- if ((i % 12) == 0)
- printf("\n\t");
- printf("0x%02X,", data[i]);
- }
- printf("\n\t};\n");
-
- l = BN_bn2bin(dsa->g, data);
- printf("static unsigned char dsa%d_g[]={", bits_p);
- for (i = 0; i < l; i++) {
- if ((i % 12) == 0)
- printf("\n\t");
- printf("0x%02X,", data[i]);
- }
- printf("\n\t};\n\n");
-
- printf("DSA *get_dsa%d()\n\t{\n", bits_p);
- printf("\tDSA *dsa;\n\n");
- printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n");
- printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n",
- bits_p, bits_p);
- printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
- bits_p, bits_p);
- printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
- bits_p, bits_p);
- printf
- ("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n");
- printf("\t\t{ DSA_free(dsa); return(NULL); }\n");
- printf("\treturn(dsa);\n\t}\n");
+ int len, bits_p;
+
+ DSA_get0_pqg(dsa, &p, &q, &g);
+ len = BN_num_bytes(p);
+ bits_p = BN_num_bits(p);
+
+ data = app_malloc(len + 20, "BN space");
+
+ BIO_printf(bio_out, "static DSA *get_dsa%d(void)\n{\n", bits_p);
+ print_bignum_var(bio_out, p, "dsap", bits_p, data);
+ print_bignum_var(bio_out, q, "dsaq", bits_p, data);
+ print_bignum_var(bio_out, g, "dsag", bits_p, data);
+ BIO_printf(bio_out, " DSA *dsa = DSA_new();\n"
+ " BIGNUM *p, *q, *g;\n"
+ "\n");
+ BIO_printf(bio_out, " if (dsa == NULL)\n"
+ " return NULL;\n");
+ BIO_printf(bio_out, " if (!DSA_set0_pqg(dsa, p = BN_bin2bn(dsap_%d, sizeof(dsap_%d), NULL),\n",
+ bits_p, bits_p);
+ BIO_printf(bio_out, " q = BN_bin2bn(dsaq_%d, sizeof(dsaq_%d), NULL),\n",
+ bits_p, bits_p);
+ BIO_printf(bio_out, " g = BN_bin2bn(dsag_%d, sizeof(dsag_%d), NULL))) {\n",
+ bits_p, bits_p);
+ BIO_printf(bio_out, " DSA_free(dsa);\n"
+ " BN_free(p);\n"
+ " BN_free(q);\n"
+ " BN_free(g);\n"
+ " return NULL;\n"
+ " }\n"
+ " return dsa;\n}\n");
+ OPENSSL_free(data);
}
if (outformat == FORMAT_ASN1 && genkey)
@@ -388,12 +210,8 @@ int MAIN(int argc, char **argv)
if (!noout) {
if (outformat == FORMAT_ASN1)
i = i2d_DSAparams_bio(out, dsa);
- else if (outformat == FORMAT_PEM)
+ else
i = PEM_write_bio_DSAparams(out, dsa);
- else {
- BIO_printf(bio_err, "bad output format specified for outfile\n");
- goto end;
- }
if (!i) {
BIO_printf(bio_err, "unable to write DSA parameters\n");
ERR_print_errors(bio_err);
@@ -403,7 +221,6 @@ int MAIN(int argc, char **argv)
if (genkey) {
DSA *dsakey;
- assert(need_rand);
if ((dsakey = DSAparams_dup(dsa)) == NULL)
goto end;
if (!DSA_generate_key(dsakey)) {
@@ -411,60 +228,31 @@ int MAIN(int argc, char **argv)
DSA_free(dsakey);
goto end;
}
+ assert(private);
if (outformat == FORMAT_ASN1)
i = i2d_DSAPrivateKey_bio(out, dsakey);
- else if (outformat == FORMAT_PEM)
+ else
i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL,
NULL);
- else {
- BIO_printf(bio_err, "bad output format specified for outfile\n");
- DSA_free(dsakey);
- goto end;
- }
DSA_free(dsakey);
}
- if (need_rand)
- app_RAND_write_file(NULL, bio_err);
ret = 0;
end:
- if (in != NULL)
- BIO_free(in);
- if (out != NULL)
- BIO_free_all(out);
- if (dsa != NULL)
- DSA_free(dsa);
+ BN_GENCB_free(cb);
+ BIO_free(in);
+ BIO_free_all(out);
+ DSA_free(dsa);
release_engine(e);
- apps_shutdown();
- OPENSSL_EXIT(ret);
+ return ret;
}
-static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb)
+static int dsa_cb(int p, int n, BN_GENCB *cb)
{
- char c = '*';
+ static const char symbols[] = ".+*\n";
+ char c = (p >= 0 && (size_t)p < sizeof(symbols) - 1) ? symbols[p] : '?';
- 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
-# ifdef GENCB_TEST
- if (stop_keygen_flag)
- return 0;
-# endif
+ BIO_write(BN_GENCB_get_arg(cb), &c, 1);
+ (void)BIO_flush(BN_GENCB_get_arg(cb));
return 1;
}
-#else /* !OPENSSL_NO_DSA */
-
-# if PEDANTIC
-static void *dummy = &dummy;
-# endif
-
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 12:26:07 +0000