mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
8c040c086c
In some error cases the normal cleanup did not happen, but instead an exit(1) which caused some memory leaks, as reported in #22049. Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com> Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com> (Merged from https://github.com/openssl/openssl/pull/22055)
252 lines
6.9 KiB
C
252 lines
6.9 KiB
C
/*
|
|
* Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* 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 <openssl/opensslconf.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include "apps.h"
|
|
#include "progs.h"
|
|
#include <openssl/bio.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/bn.h>
|
|
#include <openssl/rsa.h>
|
|
#include <openssl/evp.h>
|
|
#include <openssl/x509.h>
|
|
#include <openssl/pem.h>
|
|
#include <openssl/rand.h>
|
|
|
|
#define DEFBITS 2048
|
|
#define DEFPRIMES 2
|
|
|
|
static int verbose = 0;
|
|
|
|
typedef enum OPTION_choice {
|
|
OPT_COMMON,
|
|
#ifndef OPENSSL_NO_DEPRECATED_3_0
|
|
OPT_3,
|
|
#endif
|
|
OPT_F4, OPT_ENGINE,
|
|
OPT_OUT, OPT_PASSOUT, OPT_CIPHER, OPT_PRIMES, OPT_VERBOSE, OPT_QUIET,
|
|
OPT_R_ENUM, OPT_PROV_ENUM, OPT_TRADITIONAL
|
|
} OPTION_CHOICE;
|
|
|
|
const OPTIONS genrsa_options[] = {
|
|
{OPT_HELP_STR, 1, '-', "Usage: %s [options] numbits\n"},
|
|
|
|
OPT_SECTION("General"),
|
|
{"help", OPT_HELP, '-', "Display this summary"},
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
|
|
#endif
|
|
|
|
OPT_SECTION("Input"),
|
|
#ifndef OPENSSL_NO_DEPRECATED_3_0
|
|
{"3", OPT_3, '-', "(deprecated) Use 3 for the E value"},
|
|
#endif
|
|
{"F4", OPT_F4, '-', "Use the Fermat number F4 (0x10001) for the E value"},
|
|
{"f4", OPT_F4, '-', "Use the Fermat number F4 (0x10001) for the E value"},
|
|
|
|
OPT_SECTION("Output"),
|
|
{"out", OPT_OUT, '>', "Output the key to specified file"},
|
|
{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
|
|
{"primes", OPT_PRIMES, 'p', "Specify number of primes"},
|
|
{"verbose", OPT_VERBOSE, '-', "Verbose output"},
|
|
{"quiet", OPT_QUIET, '-', "Terse output"},
|
|
{"traditional", OPT_TRADITIONAL, '-',
|
|
"Use traditional format for private keys"},
|
|
{"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"},
|
|
|
|
OPT_R_OPTIONS,
|
|
OPT_PROV_OPTIONS,
|
|
|
|
OPT_PARAMETERS(),
|
|
{"numbits", 0, 0, "Size of key in bits"},
|
|
{NULL}
|
|
};
|
|
|
|
int genrsa_main(int argc, char **argv)
|
|
{
|
|
BN_GENCB *cb = BN_GENCB_new();
|
|
ENGINE *eng = NULL;
|
|
BIGNUM *bn = BN_new();
|
|
BIO *out = NULL;
|
|
EVP_PKEY *pkey = NULL;
|
|
EVP_PKEY_CTX *ctx = NULL;
|
|
EVP_CIPHER *enc = NULL;
|
|
int ret = 1, num = DEFBITS, private = 0, primes = DEFPRIMES;
|
|
unsigned long f4 = RSA_F4;
|
|
char *outfile = NULL, *passoutarg = NULL, *passout = NULL;
|
|
char *prog, *hexe, *dece, *ciphername = NULL;
|
|
OPTION_CHOICE o;
|
|
int traditional = 0;
|
|
|
|
if (bn == NULL || cb == NULL)
|
|
goto end;
|
|
|
|
opt_set_unknown_name("cipher");
|
|
prog = opt_init(argc, argv, genrsa_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(genrsa_options);
|
|
goto end;
|
|
#ifndef OPENSSL_NO_DEPRECATED_3_0
|
|
case OPT_3:
|
|
f4 = RSA_3;
|
|
break;
|
|
#endif
|
|
case OPT_F4:
|
|
f4 = RSA_F4;
|
|
break;
|
|
case OPT_OUT:
|
|
outfile = opt_arg();
|
|
break;
|
|
case OPT_ENGINE:
|
|
eng = setup_engine(opt_arg(), 0);
|
|
break;
|
|
case OPT_R_CASES:
|
|
if (!opt_rand(o))
|
|
goto end;
|
|
break;
|
|
case OPT_PROV_CASES:
|
|
if (!opt_provider(o))
|
|
goto end;
|
|
break;
|
|
case OPT_PASSOUT:
|
|
passoutarg = opt_arg();
|
|
break;
|
|
case OPT_CIPHER:
|
|
ciphername = opt_unknown();
|
|
break;
|
|
case OPT_PRIMES:
|
|
primes = opt_int_arg();
|
|
break;
|
|
case OPT_VERBOSE:
|
|
verbose = 1;
|
|
break;
|
|
case OPT_QUIET:
|
|
verbose = 0;
|
|
break;
|
|
case OPT_TRADITIONAL:
|
|
traditional = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* One optional argument, the bitsize. */
|
|
argc = opt_num_rest();
|
|
argv = opt_rest();
|
|
|
|
if (argc == 1) {
|
|
if (!opt_int(argv[0], &num) || num <= 0)
|
|
goto end;
|
|
if (num > OPENSSL_RSA_MAX_MODULUS_BITS)
|
|
BIO_printf(bio_err,
|
|
"Warning: It is not recommended to use more than %d bit for RSA keys.\n"
|
|
" Your key size is %d! Larger key size may behave not as expected.\n",
|
|
OPENSSL_RSA_MAX_MODULUS_BITS, num);
|
|
} else if (!opt_check_rest_arg(NULL)) {
|
|
goto opthelp;
|
|
}
|
|
|
|
if (!app_RAND_load())
|
|
goto end;
|
|
|
|
private = 1;
|
|
if (!opt_cipher(ciphername, &enc))
|
|
goto end;
|
|
if (!app_passwd(NULL, passoutarg, NULL, &passout)) {
|
|
BIO_printf(bio_err, "Error getting password\n");
|
|
goto end;
|
|
}
|
|
|
|
out = bio_open_owner(outfile, FORMAT_PEM, private);
|
|
if (out == NULL)
|
|
goto end;
|
|
|
|
if (!init_gen_str(&ctx, "RSA", eng, 0, app_get0_libctx(),
|
|
app_get0_propq()))
|
|
goto end;
|
|
|
|
if (verbose)
|
|
EVP_PKEY_CTX_set_cb(ctx, progress_cb);
|
|
EVP_PKEY_CTX_set_app_data(ctx, bio_err);
|
|
|
|
if (EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, num) <= 0) {
|
|
BIO_printf(bio_err, "Error setting RSA length\n");
|
|
goto end;
|
|
}
|
|
if (!BN_set_word(bn, f4)) {
|
|
BIO_printf(bio_err, "Error allocating RSA public exponent\n");
|
|
goto end;
|
|
}
|
|
if (EVP_PKEY_CTX_set1_rsa_keygen_pubexp(ctx, bn) <= 0) {
|
|
BIO_printf(bio_err, "Error setting RSA public exponent\n");
|
|
goto end;
|
|
}
|
|
if (EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, primes) <= 0) {
|
|
BIO_printf(bio_err, "Error setting number of primes\n");
|
|
goto end;
|
|
}
|
|
pkey = app_keygen(ctx, "RSA", num, verbose);
|
|
if (pkey == NULL)
|
|
goto end;
|
|
|
|
if (verbose) {
|
|
BIGNUM *e = NULL;
|
|
|
|
/* Every RSA key has an 'e' */
|
|
EVP_PKEY_get_bn_param(pkey, "e", &e);
|
|
if (e == NULL) {
|
|
BIO_printf(bio_err, "Error cannot access RSA e\n");
|
|
goto end;
|
|
}
|
|
hexe = BN_bn2hex(e);
|
|
dece = BN_bn2dec(e);
|
|
if (hexe && dece) {
|
|
BIO_printf(bio_err, "e is %s (0x%s)\n", dece, hexe);
|
|
}
|
|
OPENSSL_free(hexe);
|
|
OPENSSL_free(dece);
|
|
BN_free(e);
|
|
}
|
|
if (traditional) {
|
|
if (!PEM_write_bio_PrivateKey_traditional(out, pkey, enc, NULL, 0,
|
|
NULL, passout))
|
|
goto end;
|
|
} else {
|
|
if (!PEM_write_bio_PrivateKey(out, pkey, enc, NULL, 0, NULL, passout))
|
|
goto end;
|
|
}
|
|
|
|
ret = 0;
|
|
end:
|
|
BN_free(bn);
|
|
BN_GENCB_free(cb);
|
|
EVP_PKEY_CTX_free(ctx);
|
|
EVP_PKEY_free(pkey);
|
|
EVP_CIPHER_free(enc);
|
|
BIO_free_all(out);
|
|
release_engine(eng);
|
|
OPENSSL_free(passout);
|
|
if (ret != 0)
|
|
ERR_print_errors(bio_err);
|
|
return ret;
|
|
}
|
|
|