1 /* $OpenBSD: genpkey.c,v 1.7 2015/10/17 07:51:10 semarie Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
64 #include <openssl/err.h>
65 #include <openssl/evp.h>
66 #include <openssl/pem.h>
69 init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx, const char *file);
70 static int genpkey_cb(EVP_PKEY_CTX * ctx);
73 genpkey_main(int argc, char **argv)
75 char **args, *outfile = NULL;
77 BIO *in = NULL, *out = NULL;
78 const EVP_CIPHER *cipher = NULL;
81 EVP_PKEY *pkey = NULL;
82 EVP_PKEY_CTX *ctx = NULL;
89 if (single_execution) {
90 if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
96 outformat = FORMAT_PEM;
99 while (!badarg && *args && *args[0] == '-') {
100 if (!strcmp(*args, "-outform")) {
103 outformat = str2fmt(*args);
106 } else if (!strcmp(*args, "-pass")) {
111 else if (!strcmp(*args, "-paramfile")) {
117 if (!init_keygen_file(bio_err, &ctx, *args))
119 } else if (!strcmp(*args, "-out")) {
125 } else if (strcmp(*args, "-algorithm") == 0) {
128 if (!init_gen_str(bio_err, &ctx, *(++args), do_param))
130 } else if (strcmp(*args, "-pkeyopt") == 0) {
134 BIO_puts(bio_err, "No keytype specified\n");
136 } else if (pkey_ctrl_string(ctx, *(++args)) <= 0) {
137 BIO_puts(bio_err, "parameter setting error\n");
138 ERR_print_errors(bio_err);
141 } else if (strcmp(*args, "-genparam") == 0) {
145 } else if (strcmp(*args, "-text") == 0)
148 cipher = EVP_get_cipherbyname(*args + 1);
150 BIO_printf(bio_err, "Unknown cipher %s\n",
165 BIO_printf(bio_err, "Usage: genpkey [options]\n");
166 BIO_printf(bio_err, "where options may be\n");
167 BIO_printf(bio_err, "-out file output file\n");
168 BIO_printf(bio_err, "-outform X output format (DER or PEM)\n");
169 BIO_printf(bio_err, "-pass arg output file pass phrase source\n");
170 BIO_printf(bio_err, "-<cipher> use cipher <cipher> to encrypt the key\n");
171 BIO_printf(bio_err, "-paramfile file parameters file\n");
172 BIO_printf(bio_err, "-algorithm alg the public key algorithm\n");
173 BIO_printf(bio_err, "-pkeyopt opt:value set the public key algorithm option <opt>\n"
174 " to value <value>\n");
175 BIO_printf(bio_err, "-genparam generate parameters, not key\n");
176 BIO_printf(bio_err, "-text print the in text\n");
177 BIO_printf(bio_err, "NB: options order may be important! See the manual page.\n");
180 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
181 BIO_puts(bio_err, "Error getting password\n");
185 if (!(out = BIO_new_file(outfile, "wb"))) {
187 "Can't open output file %s\n", outfile);
191 out = BIO_new_fp(stdout, BIO_NOCLOSE);
194 EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
195 EVP_PKEY_CTX_set_app_data(ctx, bio_err);
198 if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) {
199 BIO_puts(bio_err, "Error generating parameters\n");
200 ERR_print_errors(bio_err);
204 if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
205 BIO_puts(bio_err, "Error generating key\n");
206 ERR_print_errors(bio_err);
212 rv = PEM_write_bio_Parameters(out, pkey);
213 else if (outformat == FORMAT_PEM)
214 rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0,
216 else if (outformat == FORMAT_ASN1)
217 rv = i2d_PrivateKey_bio(out, pkey);
219 BIO_printf(bio_err, "Bad format specified for key\n");
224 BIO_puts(bio_err, "Error writing key\n");
225 ERR_print_errors(bio_err);
229 rv = EVP_PKEY_print_params(out, pkey, 0, NULL);
231 rv = EVP_PKEY_print_private(out, pkey, 0, NULL);
234 BIO_puts(bio_err, "Error printing key\n");
235 ERR_print_errors(bio_err);
244 EVP_PKEY_CTX_free(ctx);
254 init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx,
258 EVP_PKEY *pkey = NULL;
259 EVP_PKEY_CTX *ctx = NULL;
261 BIO_puts(err, "Parameters already set!\n");
264 pbio = BIO_new_file(file, "r");
266 BIO_printf(err, "Can't open parameter file %s\n", file);
269 pkey = PEM_read_bio_Parameters(pbio, NULL);
273 BIO_printf(bio_err, "Error reading parameter file %s\n", file);
276 ctx = EVP_PKEY_CTX_new(pkey, NULL);
279 if (EVP_PKEY_keygen_init(ctx) <= 0)
286 BIO_puts(err, "Error initializing context\n");
287 ERR_print_errors(err);
289 EVP_PKEY_CTX_free(ctx);
297 init_gen_str(BIO * err, EVP_PKEY_CTX ** pctx,
298 const char *algname, int do_param)
300 EVP_PKEY_CTX *ctx = NULL;
301 const EVP_PKEY_ASN1_METHOD *ameth;
305 BIO_puts(err, "Algorithm already set!\n");
308 ameth = EVP_PKEY_asn1_find_str(NULL, algname, -1);
311 BIO_printf(bio_err, "Algorithm %s not found\n", algname);
316 EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
317 ctx = EVP_PKEY_CTX_new_id(pkey_id, NULL);
322 if (EVP_PKEY_paramgen_init(ctx) <= 0)
325 if (EVP_PKEY_keygen_init(ctx) <= 0)
333 BIO_printf(err, "Error initializing %s context\n", algname);
334 ERR_print_errors(err);
336 EVP_PKEY_CTX_free(ctx);
342 genpkey_cb(EVP_PKEY_CTX * ctx)
345 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
347 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);