| /* 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. |
| * |
| * 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.] |
| */ |
| |
| #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> |
| |
| # define DEFBITS 2048 |
| |
| static int genrsa_cb(int p, int n, BN_GENCB *cb); |
| |
| typedef enum OPTION_choice { |
| OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| OPT_3, OPT_F4, OPT_NON_FIPS_ALLOW, OPT_ENGINE, |
| OPT_OUT, OPT_RAND, OPT_PASSOUT, OPT_CIPHER |
| } OPTION_CHOICE; |
| |
| OPTIONS genrsa_options[] = { |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"3", OPT_3, '-', "Use 3 for the E value"}, |
| {"F4", OPT_F4, '-', "Use F4 (0x10001) for the E value"}, |
| {"f4", OPT_F4, '-', "Use F4 (0x10001) for the E value"}, |
| {"non-fips-allow", OPT_NON_FIPS_ALLOW, '-'}, |
| {"out", OPT_OUT, 's', "Output the key to specified file"}, |
| {"rand", OPT_RAND, 's', |
| "Load the file(s) into the random number generator"}, |
| {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, |
| {"", 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 genrsa_main(int argc, char **argv) |
| { |
| BN_GENCB *cb = BN_GENCB_new(); |
| ENGINE *e = NULL; |
| BIGNUM *bn = BN_new(); |
| BIO *out = NULL; |
| RSA *rsa = NULL; |
| const EVP_CIPHER *enc = NULL; |
| int ret = 1, non_fips_allow = 0, num = DEFBITS; |
| unsigned long f4 = RSA_F4; |
| char *outfile = NULL, *passoutarg = NULL, *passout = NULL; |
| char *inrand = NULL, *prog, *hexe, *dece; |
| OPTION_CHOICE o; |
| |
| if (!bn || !cb) |
| goto end; |
| |
| BN_GENCB_set(cb, genrsa_cb, bio_err); |
| |
| prog = opt_init(argc, argv, genrsa_options); |
| while ((o = opt_next()) != OPT_EOF) { |
| switch (o) { |
| case OPT_EOF: |
| case OPT_ERR: |
| BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
| goto end; |
| case OPT_HELP: |
| ret = 0; |
| opt_help(genrsa_options); |
| goto end; |
| case OPT_3: |
| f4 = 3; |
| break; |
| case OPT_F4: |
| f4 = RSA_F4; |
| break; |
| case OPT_NON_FIPS_ALLOW: |
| non_fips_allow = 1; |
| break; |
| case OPT_OUT: |
| outfile = opt_arg(); |
| case OPT_ENGINE: |
| e = setup_engine(opt_arg(), 0); |
| break; |
| case OPT_RAND: |
| inrand = opt_arg(); |
| break; |
| case OPT_PASSOUT: |
| passoutarg = opt_arg(); |
| break; |
| case OPT_CIPHER: |
| if (!opt_cipher(opt_unknown(), &enc)) |
| goto end; |
| break; |
| } |
| } |
| argc = opt_num_rest(); |
| argv = opt_rest(); |
| |
| if (argv[0] && (!opt_int(argv[0], &num) || num <= 0)) |
| goto end; |
| |
| if (!app_passwd(NULL, passoutarg, NULL, &passout)) { |
| BIO_printf(bio_err, "Error getting password\n"); |
| goto end; |
| } |
| |
| out = bio_open_default(outfile, "w"); |
| if (out == NULL) |
| goto end; |
| |
| if (!app_RAND_load_file(NULL, 1) && inrand == NULL |
| && !RAND_status()) { |
| 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 RSA private key, %d bit long modulus\n", |
| num); |
| rsa = e ? RSA_new_method(e) : RSA_new(); |
| if (!rsa) |
| goto end; |
| |
| if (non_fips_allow) |
| rsa->flags |= RSA_FLAG_NON_FIPS_ALLOW; |
| |
| if (!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, cb)) |
| goto end; |
| |
| app_RAND_write_file(NULL); |
| |
| 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 (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 end; |
| } |
| |
| ret = 0; |
| end: |
| BN_free(bn); |
| BN_GENCB_free(cb); |
| RSA_free(rsa); |
| BIO_free_all(out); |
| if (passout) |
| OPENSSL_free(passout); |
| if (ret != 0) |
| ERR_print_errors(bio_err); |
| return (ret); |
| } |
| |
| static int genrsa_cb(int p, int n, BN_GENCB *cb) |
| { |
| char c = '*'; |
| |
| 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)); |
| return 1; |
| } |
| #else /* !OPENSSL_NO_RSA */ |
| |
| # if PEDANTIC |
| static void *dummy = &dummy; |
| # endif |
| |
| #endif |
