-/* apps/genrsa.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2020 The OpenSSL Project Authors. 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.]
+ * 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>
-#ifndef OPENSSL_NO_RSA
-# 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/rsa.h>
-# include <openssl/evp.h>
-# include <openssl/x509.h>
-# include <openssl/pem.h>
-# include <openssl/rand.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;
+
+static int genrsa_cb(EVP_PKEY_CTX *ctx);
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+#ifndef OPENSSL_NO_DEPRECATED_3_0
+ OPT_3,
+#endif
+ OPT_F4, OPT_ENGINE,
+ OPT_OUT, OPT_PASSOUT, OPT_CIPHER, OPT_PRIMES, OPT_VERBOSE,
+ OPT_R_ENUM, OPT_PROV_ENUM
+} 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
-# define DEFBITS 2048
-# undef PROG
-# define PROG genrsa_main
+ 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"},
+ {"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"},
-static int genrsa_cb(int p, int n, BN_GENCB *cb);
+ OPT_R_OPTIONS,
+ OPT_PROV_OPTIONS,
-int MAIN(int, char **);
+ OPT_PARAMETERS(),
+ {"numbits", 0, 0, "Size of key in bits"},
+ {NULL}
+};
-int MAIN(int argc, char **argv)
+int genrsa_main(int argc, char **argv)
{
- BN_GENCB *cb = NULL;
-# ifndef OPENSSL_NO_ENGINE
- ENGINE *e = NULL;
-# endif
- int ret = 1;
- int non_fips_allow = 0;
- int num = DEFBITS;
+ BN_GENCB *cb = BN_GENCB_new();
+ ENGINE *eng = NULL;
+ BIGNUM *bn = BN_new();
+ RSA *rsa;
+ BIO *out = NULL;
+ const BIGNUM *e;
+ EVP_PKEY *pkey = NULL;
+ EVP_PKEY_CTX *ctx = NULL;
const EVP_CIPHER *enc = NULL;
+ int ret = 1, num = DEFBITS, private = 0, primes = DEFPRIMES;
unsigned long f4 = RSA_F4;
- char *outfile = NULL;
- char *passargout = NULL, *passout = NULL;
- char *hexe, *dece;
-# ifndef OPENSSL_NO_ENGINE
- char *engine = NULL;
-# endif
- char *inrand = NULL;
- BIO *out = NULL;
- BIGNUM *bn = BN_new();
- RSA *rsa = NULL;
- if (!bn)
- goto err;
-
- cb = BN_GENCB_new();
- if (!cb)
- goto err;
-
- apps_startup();
-
- BN_GENCB_set(cb, genrsa_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 err;
- if ((out = BIO_new(BIO_s_file())) == NULL) {
- BIO_printf(bio_err, "unable to create BIO for output\n");
- goto err;
- }
-
- argv++;
- argc--;
- for (;;) {
- if (argc <= 0)
+ char *outfile = NULL, *passoutarg = NULL, *passout = NULL;
+ char *prog, *hexe, *dece;
+ OPTION_CHOICE o;
+ unsigned char *ebuf = NULL;
+
+ if (bn == NULL || cb == NULL)
+ goto end;
+
+ 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;
- if (strcmp(*argv, "-out") == 0) {
- if (--argc < 1)
- goto bad;
- outfile = *(++argv);
- } else if (strcmp(*argv, "-3") == 0)
- f4 = 3;
- else if (strcmp(*argv, "-F4") == 0 || strcmp(*argv, "-f4") == 0)
+#endif
+ case OPT_F4:
f4 = RSA_F4;
-# 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);
- }
-# ifndef OPENSSL_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 OPENSSL_NO_IDEA
- else if (strcmp(*argv, "-idea") == 0)
- enc = EVP_idea_cbc();
-# endif
-# ifndef OPENSSL_NO_SEED
- else if (strcmp(*argv, "-seed") == 0)
- enc = EVP_seed_cbc();
-# endif
-# ifndef OPENSSL_NO_AES
- else if (strcmp(*argv, "-aes128") == 0)
- enc = EVP_aes_128_cbc();
- else if (strcmp(*argv, "-aes192") == 0)
- enc = EVP_aes_192_cbc();
- else if (strcmp(*argv, "-aes256") == 0)
- enc = EVP_aes_256_cbc();
-# endif
-# ifndef OPENSSL_NO_CAMELLIA
- else if (strcmp(*argv, "-camellia128") == 0)
- enc = EVP_camellia_128_cbc();
- else if (strcmp(*argv, "-camellia192") == 0)
- enc = EVP_camellia_192_cbc();
- else if (strcmp(*argv, "-camellia256") == 0)
- enc = EVP_camellia_256_cbc();
-# endif
- else if (strcmp(*argv, "-passout") == 0) {
- if (--argc < 1)
- goto bad;
- passargout = *(++argv);
- } else if (strcmp(*argv, "-non-fips-allow") == 0)
- non_fips_allow = 1;
- else
break;
- argv++;
- argc--;
+ 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:
+ if (!opt_cipher(opt_unknown(), &enc))
+ goto end;
+ break;
+ case OPT_PRIMES:
+ if (!opt_int(opt_arg(), &primes))
+ goto end;
+ break;
+ case OPT_VERBOSE:
+ verbose = 1;
+ break;
+ }
}
- if ((argc >= 1) && ((sscanf(*argv, "%d", &num) == 0) || (num < 0))) {
- bad:
- BIO_printf(bio_err, "usage: genrsa [args] [numbits]\n");
- 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");
-# ifndef OPENSSL_NO_IDEA
- BIO_printf(bio_err,
- " -idea encrypt the generated key with IDEA in cbc mode\n");
-# endif
-# ifndef OPENSSL_NO_SEED
- BIO_printf(bio_err, " -seed\n");
- BIO_printf(bio_err,
- " encrypt PEM output with cbc seed\n");
-# endif
-# ifndef OPENSSL_NO_AES
- BIO_printf(bio_err, " -aes128, -aes192, -aes256\n");
- BIO_printf(bio_err,
- " encrypt PEM output with cbc aes\n");
-# endif
-# ifndef OPENSSL_NO_CAMELLIA
- BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n");
- BIO_printf(bio_err,
- " encrypt PEM output with cbc camellia\n");
-# endif
- BIO_printf(bio_err, " -out file output the key to 'file\n");
- BIO_printf(bio_err,
- " -passout arg output file pass phrase source\n");
- BIO_printf(bio_err,
- " -f4 use F4 (0x10001) for the E value\n");
- BIO_printf(bio_err, " -3 use 3 for the E 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 err;
+ 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 (argc > 0) {
+ BIO_printf(bio_err, "Extra arguments given.\n");
+ goto opthelp;
}
- ERR_load_crypto_strings();
-
- if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
+ private = 1;
+ if (!app_passwd(NULL, passoutarg, NULL, &passout)) {
BIO_printf(bio_err, "Error getting password\n");
- goto err;
- }
-# ifndef OPENSSL_NO_ENGINE
- e = setup_engine(bio_err, engine, 0);
-# endif
-
- 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 err;
- }
- }
-
- if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
- && !RAND_status()) {
- BIO_printf(bio_err,
- "warning, not much extra random data, consider using the -rand option\n");
+ goto end;
}
- if (inrand != NULL)
- BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
- app_RAND_load_files(inrand));
- BIO_printf(bio_err, "Generating RSA private key, %d bit long modulus\n",
- num);
-# ifdef OPENSSL_NO_ENGINE
- rsa = RSA_new();
-# else
- rsa = RSA_new_method(e);
-# endif
- if (!rsa)
- goto err;
+ out = bio_open_owner(outfile, FORMAT_PEM, private);
+ if (out == NULL)
+ goto end;
- if (non_fips_allow)
- rsa->flags |= RSA_FLAG_NON_FIPS_ALLOW;
+ if (!init_gen_str(&ctx, "RSA", eng, 0))
+ goto end;
- if (!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, cb))
- goto err;
+ EVP_PKEY_CTX_set_cb(ctx, genrsa_cb);
+ EVP_PKEY_CTX_set_app_data(ctx, bio_err);
- app_RAND_write_file(NULL, bio_err);
-
- hexe = BN_bn2hex(rsa->e);
- dece = BN_bn2dec(rsa->e);
- if (hexe && dece) {
- BIO_printf(bio_err, "e is %s (0x%s)\n", dece, hexe);
+ 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_set_rsa_keygen_pubexp(ctx, bn) <= 0) {
+ BIO_printf(bio_err, "Error setting RSA public exponent\n");
+ goto end;
}
- if (hexe)
+ if (EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, primes) <= 0) {
+ BIO_printf(bio_err, "Error setting number of primes\n");
+ goto end;
+ }
+ if (verbose)
+ BIO_printf(bio_err, "Generating RSA private key, %d bit long modulus (%d primes)\n",
+ num, primes);
+ if (!EVP_PKEY_keygen(ctx, &pkey)) {
+ BIO_printf(bio_err, "Error generating RSA key\n");
+ goto end;
+ }
+
+ if (verbose) {
+ if ((rsa = EVP_PKEY_get0_RSA(pkey)) != NULL) {
+ RSA_get0_key(rsa, NULL, &e, NULL);
+ } else {
+ 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);
- if (dece)
OPENSSL_free(dece);
- {
- PW_CB_DATA cb_data;
- cb_data.password = passout;
- cb_data.prompt_info = outfile;
- if (!PEM_write_bio_RSAPrivateKey(out, rsa, enc, NULL, 0,
- (pem_password_cb *)password_callback,
- &cb_data))
- goto err;
}
+ if (!PEM_write_bio_PrivateKey(out, pkey, enc, NULL, 0, NULL, passout))
+ goto end;
ret = 0;
- err:
- if (bn)
- BN_free(bn);
- if (cb)
- BN_GENCB_free(cb);
- RSA_free(rsa);
+ end:
+ BN_free(bn);
+ BN_GENCB_free(cb);
+ EVP_PKEY_CTX_free(ctx);
+ EVP_PKEY_free(pkey);
BIO_free_all(out);
- if (passout)
- OPENSSL_free(passout);
+ release_engine(eng);
+ OPENSSL_free(passout);
+ OPENSSL_free(ebuf);
if (ret != 0)
ERR_print_errors(bio_err);
- apps_shutdown();
- OPENSSL_EXIT(ret);
+ return ret;
}
-static int genrsa_cb(int p, int n, BN_GENCB *cb)
+static int genrsa_cb(EVP_PKEY_CTX *ctx)
{
char c = '*';
+ BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
+ int p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
+
+ if (!verbose)
+ return 1;
if (p == 0)
c = '.';
c = '*';
if (p == 3)
c = '\n';
- BIO_write(BN_GENCB_get_arg(cb), &c, 1);
- (void)BIO_flush(BN_GENCB_get_arg(cb));
+ BIO_write(b, &c, 1);
+ (void)BIO_flush(b);
return 1;
}
-#else /* !OPENSSL_NO_RSA */
-
-# if PEDANTIC
-static void *dummy = &dummy;
-# endif
-
-#endif
projects / openssl.git / blobdiff