/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (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 <time.h>
# include <string.h>
# include "apps.h"
+# include "progs.h"
# include <openssl/bio.h>
# include <openssl/err.h>
# include <openssl/bn.h>
# include <openssl/x509.h>
# include <openssl/pem.h>
-# ifdef GENCB_TEST
-
-static int stop_keygen_flag = 0;
-
-static void timebomb_sigalarm(int foo)
-{
- stop_keygen_flag = 1;
-}
-
-# endif
-
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_RAND, OPT_ENGINE,
- OPT_TIMEBOMB
+ OPT_NOOUT, OPT_GENKEY, OPT_ENGINE, OPT_R_ENUM
} OPTION_CHOICE;
-OPTIONS dsaparam_options[] = {
+const OPTIONS dsaparam_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
{"in", OPT_IN, '<', "Input file"},
{"C", OPT_C, '-', "Output C code"},
{"noout", OPT_NOOUT, '-', "No output"},
{"genkey", OPT_GENKEY, '-', "Generate a DSA key"},
- {"rand", OPT_RAND, 's', "Files to use for random number input"},
-# ifdef GENCB_TEST
- {"timebomb", OPT_TIMEBOMB, 'p', "Interrupt keygen after 'pnum' seconds"},
-# endif
+ OPT_R_OPTIONS,
# ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
# endif
int dsaparam_main(int argc, char **argv)
{
+ ENGINE *e = NULL;
DSA *dsa = NULL;
BIO *in = NULL, *out = NULL;
BN_GENCB *cb = NULL;
- int numbits = -1, num = 0, genkey = 0, need_rand = 0;
+ 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;
-# ifdef GENCB_TEST
- int timebomb = 0;
-# endif
- char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL;
+ char *infile = NULL, *outfile = NULL, *prog;
OPTION_CHOICE o;
prog = opt_init(argc, argv, dsaparam_options);
outfile = opt_arg();
break;
case OPT_ENGINE:
- (void)setup_engine(opt_arg(), 0);
- break;
- case OPT_TIMEBOMB:
-# ifdef GENCB_TEST
- timebomb = atoi(opt_arg());
+ e = setup_engine(opt_arg(), 0);
break;
-# endif
case OPT_TEXT:
text = 1;
break;
C = 1;
break;
case OPT_GENKEY:
- genkey = need_rand = 1;
+ genkey = 1;
break;
- case OPT_RAND:
- inrand = opt_arg();
- need_rand = 1;
+ case OPT_R_CASES:
+ if (!opt_rand(o))
+ goto end;
break;
case OPT_NOOUT:
noout = 1;
goto end;
/* generate a key */
numbits = num;
- need_rand = 1;
}
private = genkey ? 1 : 0;
if (out == NULL)
goto end;
- if (need_rand) {
- app_RAND_load_file(NULL, (inrand != NULL));
- if (inrand != NULL)
- BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
- app_RAND_load_files(inrand));
- }
-
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;
}
BN_GENCB_set(cb, dsa_cb, bio_err);
- assert(need_rand);
dsa = DSA_new();
if (dsa == NULL) {
BIO_printf(bio_err, "Error allocating DSA object\n");
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
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
+ } else {
dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL);
+ }
if (dsa == NULL) {
BIO_printf(bio_err, "unable to load DSA parameters\n");
ERR_print_errors(bio_err);
data = app_malloc(len + 20, "BN space");
- BIO_printf(bio_out, "DSA *get_dsa%d()\n{\n", bits_p);
- print_bignum_var(bio_out, p, "dsap", len, data);
- print_bignum_var(bio_out, q, "dsaq", len, data);
- print_bignum_var(bio_out, g, "dsag", len, data);
+ 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, " dsa->p = BN_bin2bn(dsap_%d, sizeof (dsap_%d), NULL);\n",
- bits_p, bits_p);
- BIO_printf(bio_out, " dsa->q = BN_bin2bn(dsaq_%d, sizeof (dsaq_%d), NULL);\n",
- bits_p, bits_p);
- BIO_printf(bio_out, " dsa->g = BN_bin2bn(dsag_%d, sizeof (dsag_%d), NULL);\n",
- bits_p, bits_p);
- BIO_printf(bio_out, " if (!dsa->p || !dsa->q || !dsa->g) {\n"
- " DSA_free(dsa);\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");
+ " return dsa;\n}\n");
OPENSSL_free(data);
}
+ if (outformat == FORMAT_ASN1 && genkey)
+ noout = 1;
+
if (!noout) {
if (outformat == FORMAT_ASN1)
i = i2d_DSAparams_bio(out, dsa);
if (genkey) {
DSA *dsakey;
- assert(need_rand);
if ((dsakey = DSAparams_dup(dsa)) == NULL)
goto end;
if (!DSA_generate_key(dsakey)) {
NULL);
DSA_free(dsakey);
}
- if (need_rand)
- app_RAND_write_file(NULL);
ret = 0;
end:
BN_GENCB_free(cb);
BIO_free(in);
BIO_free_all(out);
DSA_free(dsa);
- return (ret);
+ release_engine(e);
+ return ret;
}
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(BN_GENCB_get_arg(cb), &c, 1);
(void)BIO_flush(BN_GENCB_get_arg(cb));
-# ifdef GENCB_TEST
- if (stop_keygen_flag)
- return 0;
-# endif
return 1;
}
#endif
projects / openssl.git / blobdiff