diff options
Diffstat (limited to 'usr.bin/openssl/genrsa.c')
| -rw-r--r-- | usr.bin/openssl/genrsa.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/usr.bin/openssl/genrsa.c b/usr.bin/openssl/genrsa.c new file mode 100644 index 00000000000..7844fb815fb --- /dev/null +++ b/usr.bin/openssl/genrsa.c @@ -0,0 +1,286 @@ +/* $OpenBSD: genrsa.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */ +/* 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> + +/* 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 <sys/types.h> +#include <sys/stat.h> + +#include <stdio.h> +#include <string.h> + +#include "apps.h" + +#include <openssl/bio.h> +#include <openssl/bn.h> +#include <openssl/err.h> +#include <openssl/evp.h> +#include <openssl/pem.h> +#include <openssl/rand.h> +#include <openssl/rsa.h> +#include <openssl/x509.h> + +#define DEFBITS 2048 + +static int genrsa_cb(int p, int n, BN_GENCB * cb); + +int genrsa_main(int, char **); + +int +genrsa_main(int argc, char **argv) +{ + BN_GENCB cb; +#ifndef OPENSSL_NO_ENGINE + ENGINE *e = NULL; +#endif + int ret = 1; + int i, num = DEFBITS; + long l; + const EVP_CIPHER *enc = NULL; + unsigned long f4 = RSA_F4; + char *outfile = NULL; + char *passargout = NULL, *passout = NULL; +#ifndef OPENSSL_NO_ENGINE + char *engine = NULL; +#endif + BIO *out = NULL; + BIGNUM *bn = BN_new(); + RSA *rsa = NULL; + + if (!bn) + goto err; + + BN_GENCB_set(&cb, genrsa_cb, bio_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) + 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) + f4 = RSA_F4; +#ifndef OPENSSL_NO_ENGINE + else if (strcmp(*argv, "-engine") == 0) { + if (--argc < 1) + goto bad; + engine = *(++argv); + } +#endif +#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_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 + break; + argv++; + argc--; + } + 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_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 + goto err; + } + ERR_load_crypto_strings(); + + if (!app_passwd(bio_err, NULL, passargout, 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); + } else { + if (BIO_write_filename(out, outfile) <= 0) { + perror(outfile); + goto err; + } + } + + 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; + + if (!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb)) + goto err; + + /* + * We need to do the following for when the base number size is < + * long, esp windows 3.1 :-(. + */ + l = 0L; + for (i = 0; i < rsa->e->top; i++) { +#ifndef _LP64 + l <<= BN_BITS4; + l <<= BN_BITS4; +#endif + l += rsa->e->d[i]; + } + BIO_printf(bio_err, "e is %ld (0x%lX)\n", l, l); + { + PW_CB_DATA cb_data; + cb_data.password = passout; + cb_data.prompt_info = outfile; + if (!PEM_write_bio_RSAPrivateKey(out, rsa, enc, NULL, 0, + password_callback, &cb_data)) + goto err; + } + + ret = 0; +err: + if (bn) + BN_free(bn); + if (rsa) + RSA_free(rsa); + if (out) + BIO_free_all(out); + 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(cb->arg, &c, 1); + (void) BIO_flush(cb->arg); + return 1; +} |