| /* apps/genpkey.c */ |
| /* |
| * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project |
| * 2006 |
| */ |
| /* ==================================================================== |
| * Copyright (c) 2006 The OpenSSL Project. All rights reserved. |
| * |
| * 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 above 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 acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * licensing@OpenSSL.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED 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 OpenSSL PROJECT OR |
| * ITS 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. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| #include <stdio.h> |
| #include <string.h> |
| #include "apps.h" |
| #include <openssl/pem.h> |
| #include <openssl/err.h> |
| #include <openssl/evp.h> |
| #ifndef OPENSSL_NO_ENGINE |
| # include <openssl/engine.h> |
| #endif |
| |
| static int init_keygen_file(BIO *err, EVP_PKEY_CTX **pctx, |
| const char *file, ENGINE *e); |
| static int genpkey_cb(EVP_PKEY_CTX *ctx); |
| |
| #define PROG genpkey_main |
| |
| int MAIN(int, char **); |
| |
| int MAIN(int argc, char **argv) |
| { |
| ENGINE *e = NULL; |
| char **args, *outfile = NULL; |
| char *passarg = NULL; |
| BIO *in = NULL, *out = NULL; |
| const EVP_CIPHER *cipher = NULL; |
| int outformat; |
| int text = 0; |
| EVP_PKEY *pkey = NULL; |
| EVP_PKEY_CTX *ctx = NULL; |
| char *pass = NULL; |
| int badarg = 0; |
| int ret = 1, rv; |
| |
| int do_param = 0; |
| |
| if (bio_err == NULL) |
| bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); |
| |
| if (!load_config(bio_err, NULL)) |
| goto end; |
| |
| outformat = FORMAT_PEM; |
| |
| ERR_load_crypto_strings(); |
| OpenSSL_add_all_algorithms(); |
| args = argv + 1; |
| while (!badarg && *args && *args[0] == '-') { |
| if (!strcmp(*args, "-outform")) { |
| if (args[1]) { |
| args++; |
| outformat = str2fmt(*args); |
| } else |
| badarg = 1; |
| } else if (!strcmp(*args, "-pass")) { |
| if (!args[1]) |
| goto bad; |
| passarg = *(++args); |
| } |
| #ifndef OPENSSL_NO_ENGINE |
| else if (strcmp(*args, "-engine") == 0) { |
| if (!args[1]) |
| goto bad; |
| e = setup_engine(bio_err, *(++args), 0); |
| } |
| #endif |
| else if (!strcmp(*args, "-paramfile")) { |
| if (!args[1]) |
| goto bad; |
| args++; |
| if (do_param == 1) |
| goto bad; |
| if (!init_keygen_file(bio_err, &ctx, *args, e)) |
| goto end; |
| } else if (!strcmp(*args, "-out")) { |
| if (args[1]) { |
| args++; |
| outfile = *args; |
| } else |
| badarg = 1; |
| } else if (strcmp(*args, "-algorithm") == 0) { |
| if (!args[1]) |
| goto bad; |
| if (!init_gen_str(bio_err, &ctx, *(++args), e, do_param)) |
| goto end; |
| } else if (strcmp(*args, "-pkeyopt") == 0) { |
| if (!args[1]) |
| goto bad; |
| if (!ctx) { |
| BIO_puts(bio_err, "No keytype specified\n"); |
| goto bad; |
| } else if (pkey_ctrl_string(ctx, *(++args)) <= 0) { |
| BIO_puts(bio_err, "parameter setting error\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } else if (strcmp(*args, "-genparam") == 0) { |
| if (ctx) |
| goto bad; |
| do_param = 1; |
| } else if (strcmp(*args, "-text") == 0) |
| text = 1; |
| else { |
| cipher = EVP_get_cipherbyname(*args + 1); |
| if (!cipher) { |
| BIO_printf(bio_err, "Unknown cipher %s\n", *args + 1); |
| badarg = 1; |
| } |
| if (do_param == 1) |
| badarg = 1; |
| } |
| args++; |
| } |
| |
| if (!ctx) |
| badarg = 1; |
| |
| if (badarg) { |
| bad: |
| BIO_printf(bio_err, "Usage: genpkey [options]\n"); |
| BIO_printf(bio_err, "where options may be\n"); |
| BIO_printf(bio_err, "-out file output file\n"); |
| BIO_printf(bio_err, |
| "-outform X output format (DER or PEM)\n"); |
| BIO_printf(bio_err, |
| "-pass arg output file pass phrase source\n"); |
| BIO_printf(bio_err, |
| "-<cipher> use cipher <cipher> to encrypt the key\n"); |
| #ifndef OPENSSL_NO_ENGINE |
| BIO_printf(bio_err, |
| "-engine e use engine e, possibly a hardware device.\n"); |
| #endif |
| BIO_printf(bio_err, "-paramfile file parameters file\n"); |
| BIO_printf(bio_err, "-algorithm alg the public key algorithm\n"); |
| BIO_printf(bio_err, |
| "-pkeyopt opt:value set the public key algorithm option <opt>\n" |
| " to value <value>\n"); |
| BIO_printf(bio_err, |
| "-genparam generate parameters, not key\n"); |
| BIO_printf(bio_err, "-text print the in text\n"); |
| BIO_printf(bio_err, |
| "NB: options order may be important! See the manual page.\n"); |
| goto end; |
| } |
| |
| if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { |
| BIO_puts(bio_err, "Error getting password\n"); |
| goto end; |
| } |
| |
| if (outfile) { |
| if (!(out = BIO_new_file(outfile, "wb"))) { |
| BIO_printf(bio_err, "Can't open output file %s\n", outfile); |
| goto end; |
| } |
| } else { |
| out = BIO_new_fp(stdout, BIO_NOCLOSE); |
| #ifdef OPENSSL_SYS_VMS |
| { |
| BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| out = BIO_push(tmpbio, out); |
| } |
| #endif |
| } |
| |
| EVP_PKEY_CTX_set_cb(ctx, genpkey_cb); |
| EVP_PKEY_CTX_set_app_data(ctx, bio_err); |
| |
| if (do_param) { |
| if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) { |
| BIO_puts(bio_err, "Error generating parameters\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } else { |
| if (EVP_PKEY_keygen(ctx, &pkey) <= 0) { |
| BIO_puts(bio_err, "Error generating key\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (do_param) |
| rv = PEM_write_bio_Parameters(out, pkey); |
| else if (outformat == FORMAT_PEM) |
| rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0, NULL, pass); |
| else if (outformat == FORMAT_ASN1) |
| rv = i2d_PrivateKey_bio(out, pkey); |
| else { |
| BIO_printf(bio_err, "Bad format specified for key\n"); |
| goto end; |
| } |
| |
| if (rv <= 0) { |
| BIO_puts(bio_err, "Error writing key\n"); |
| ERR_print_errors(bio_err); |
| } |
| |
| if (text) { |
| if (do_param) |
| rv = EVP_PKEY_print_params(out, pkey, 0, NULL); |
| else |
| rv = EVP_PKEY_print_private(out, pkey, 0, NULL); |
| |
| if (rv <= 0) { |
| BIO_puts(bio_err, "Error printing key\n"); |
| ERR_print_errors(bio_err); |
| } |
| } |
| |
| ret = 0; |
| |
| end: |
| if (pkey) |
| EVP_PKEY_free(pkey); |
| if (ctx) |
| EVP_PKEY_CTX_free(ctx); |
| if (out) |
| BIO_free_all(out); |
| BIO_free(in); |
| if (pass) |
| OPENSSL_free(pass); |
| |
| return ret; |
| } |
| |
| static int init_keygen_file(BIO *err, EVP_PKEY_CTX **pctx, |
| const char *file, ENGINE *e) |
| { |
| BIO *pbio; |
| EVP_PKEY *pkey = NULL; |
| EVP_PKEY_CTX *ctx = NULL; |
| if (*pctx) { |
| BIO_puts(err, "Parameters already set!\n"); |
| return 0; |
| } |
| |
| pbio = BIO_new_file(file, "r"); |
| if (!pbio) { |
| BIO_printf(err, "Can't open parameter file %s\n", file); |
| return 0; |
| } |
| |
| pkey = PEM_read_bio_Parameters(pbio, NULL); |
| BIO_free(pbio); |
| |
| if (!pkey) { |
| BIO_printf(bio_err, "Error reading parameter file %s\n", file); |
| return 0; |
| } |
| |
| ctx = EVP_PKEY_CTX_new(pkey, e); |
| if (!ctx) |
| goto err; |
| if (EVP_PKEY_keygen_init(ctx) <= 0) |
| goto err; |
| EVP_PKEY_free(pkey); |
| *pctx = ctx; |
| return 1; |
| |
| err: |
| BIO_puts(err, "Error initializing context\n"); |
| ERR_print_errors(err); |
| if (ctx) |
| EVP_PKEY_CTX_free(ctx); |
| if (pkey) |
| EVP_PKEY_free(pkey); |
| return 0; |
| |
| } |
| |
| int init_gen_str(BIO *err, EVP_PKEY_CTX **pctx, |
| const char *algname, ENGINE *e, int do_param) |
| { |
| EVP_PKEY_CTX *ctx = NULL; |
| const EVP_PKEY_ASN1_METHOD *ameth; |
| ENGINE *tmpeng = NULL; |
| int pkey_id; |
| |
| if (*pctx) { |
| BIO_puts(err, "Algorithm already set!\n"); |
| return 0; |
| } |
| |
| ameth = EVP_PKEY_asn1_find_str(&tmpeng, algname, -1); |
| |
| #ifndef OPENSSL_NO_ENGINE |
| if (!ameth && e) |
| ameth = ENGINE_get_pkey_asn1_meth_str(e, algname, -1); |
| #endif |
| |
| if (!ameth) { |
| BIO_printf(bio_err, "Algorithm %s not found\n", algname); |
| return 0; |
| } |
| |
| ERR_clear_error(); |
| |
| EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth); |
| #ifndef OPENSSL_NO_ENGINE |
| if (tmpeng) |
| ENGINE_finish(tmpeng); |
| #endif |
| ctx = EVP_PKEY_CTX_new_id(pkey_id, e); |
| |
| if (!ctx) |
| goto err; |
| if (do_param) { |
| if (EVP_PKEY_paramgen_init(ctx) <= 0) |
| goto err; |
| } else { |
| if (EVP_PKEY_keygen_init(ctx) <= 0) |
| goto err; |
| } |
| |
| *pctx = ctx; |
| return 1; |
| |
| err: |
| BIO_printf(err, "Error initializing %s context\n", algname); |
| ERR_print_errors(err); |
| if (ctx) |
| EVP_PKEY_CTX_free(ctx); |
| return 0; |
| |
| } |
| |
| static int genpkey_cb(EVP_PKEY_CTX *ctx) |
| { |
| char c = '*'; |
| BIO *b = EVP_PKEY_CTX_get_app_data(ctx); |
| int p; |
| p = EVP_PKEY_CTX_get_keygen_info(ctx, 0); |
| if (p == 0) |
| c = '.'; |
| if (p == 1) |
| c = '+'; |
| if (p == 2) |
| c = '*'; |
| if (p == 3) |
| c = '\n'; |
| BIO_write(b, &c, 1); |
| (void)BIO_flush(b); |
| #ifdef LINT |
| p = n; |
| #endif |
| return 1; |
| } |
