2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
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).
61 #include <openssl/pem.h>
62 #include <openssl/err.h>
63 #include <openssl/evp.h>
64 #ifndef OPENSSL_NO_ENGINE
65 # include <openssl/engine.h>
68 static int init_keygen_file(EVP_PKEY_CTX **pctx, const char *file, ENGINE *e);
69 static int genpkey_cb(EVP_PKEY_CTX *ctx);
71 typedef enum OPTION_choice {
72 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
73 OPT_ENGINE, OPT_OUTFORM, OPT_OUT, OPT_PASS, OPT_PARAMFILE,
74 OPT_ALGORITHM, OPT_PKEYOPT, OPT_GENPARAM, OPT_TEXT, OPT_CIPHER
77 OPTIONS genpkey_options[] = {
78 {"help", OPT_HELP, '-', "Display this summary"},
79 {"out", OPT_OUT, '>', "Output file"},
80 {"outform", OPT_OUTFORM, 'F', "output format (DER or PEM)"},
81 {"pass", OPT_PASS, 's', "Output file pass phrase source"},
82 {"paramfile", OPT_PARAMFILE, '<', "Parameters file"},
83 {"algorithm", OPT_ALGORITHM, 's', "The public key algorithm"},
84 {"pkeyopt", OPT_PKEYOPT, 's',
85 "Set the public key algorithm option as opt:value"},
86 {"genparam", OPT_GENPARAM, '-', "Generate parameters, not key"},
87 {"text", OPT_TEXT, '-', "Print the in text"},
88 {"", OPT_CIPHER, '-', "Cipher to use to encrypt the key"},
89 #ifndef OPENSSL_NO_ENGINE
90 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
92 /* This is deliberately last. */
94 "Order of options may be important! See the documentation.\n"},
98 int genpkey_main(int argc, char **argv)
100 BIO *in = NULL, *out = NULL;
102 EVP_PKEY *pkey = NULL;
103 EVP_PKEY_CTX *ctx = NULL;
104 char *outfile = NULL, *passarg = NULL, *pass = NULL, *prog;
105 const EVP_CIPHER *cipher = NULL;
107 int outformat = FORMAT_PEM, text = 0, ret = 1, rv, do_param = 0;
110 prog = opt_init(argc, argv, genpkey_options);
111 while ((o = opt_next()) != OPT_EOF) {
116 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
120 opt_help(genpkey_options);
123 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
133 e = setup_engine(opt_arg(), 0);
138 if (!init_keygen_file(&ctx, opt_arg(), e))
142 if (!init_gen_str(&ctx, opt_arg(), e, do_param))
147 BIO_printf(bio_err, "%s: No keytype specified.\n", prog);
150 if (pkey_ctrl_string(ctx, opt_arg()) <= 0) {
152 "%s: Error setting %s parameter:\n",
154 ERR_print_errors(bio_err);
167 if (!opt_cipher(opt_unknown(), &cipher)
172 argc = opt_num_rest();
174 private = do_param ? 0 : 1;
179 if (!app_passwd(passarg, NULL, &pass, NULL)) {
180 BIO_puts(bio_err, "Error getting password\n");
184 if (!app_load_modules(NULL))
187 out = bio_open_owner(outfile, outformat, private);
191 EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
192 EVP_PKEY_CTX_set_app_data(ctx, bio_err);
195 if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) {
196 BIO_puts(bio_err, "Error generating parameters\n");
197 ERR_print_errors(bio_err);
201 if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
202 BIO_puts(bio_err, "Error generating key\n");
203 ERR_print_errors(bio_err);
209 rv = PEM_write_bio_Parameters(out, pkey);
210 else if (outformat == FORMAT_PEM) {
212 rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0, NULL, pass);
213 } else if (outformat == FORMAT_ASN1) {
215 rv = i2d_PrivateKey_bio(out, pkey);
217 BIO_printf(bio_err, "Bad format specified for key\n");
222 BIO_puts(bio_err, "Error writing key\n");
223 ERR_print_errors(bio_err);
228 rv = EVP_PKEY_print_params(out, pkey, 0, NULL);
230 rv = EVP_PKEY_print_private(out, pkey, 0, NULL);
233 BIO_puts(bio_err, "Error printing key\n");
234 ERR_print_errors(bio_err);
242 EVP_PKEY_CTX_free(ctx);
250 static int init_keygen_file(EVP_PKEY_CTX **pctx, const char *file, ENGINE *e)
253 EVP_PKEY *pkey = NULL;
254 EVP_PKEY_CTX *ctx = NULL;
256 BIO_puts(bio_err, "Parameters already set!\n");
260 pbio = BIO_new_file(file, "r");
262 BIO_printf(bio_err, "Can't open parameter file %s\n", file);
266 pkey = PEM_read_bio_Parameters(pbio, NULL);
270 BIO_printf(bio_err, "Error reading parameter file %s\n", file);
274 ctx = EVP_PKEY_CTX_new(pkey, e);
277 if (EVP_PKEY_keygen_init(ctx) <= 0)
284 BIO_puts(bio_err, "Error initializing context\n");
285 ERR_print_errors(bio_err);
286 EVP_PKEY_CTX_free(ctx);
292 int init_gen_str(EVP_PKEY_CTX **pctx,
293 const char *algname, ENGINE *e, int do_param)
295 EVP_PKEY_CTX *ctx = NULL;
296 const EVP_PKEY_ASN1_METHOD *ameth;
297 ENGINE *tmpeng = NULL;
301 BIO_puts(bio_err, "Algorithm already set!\n");
305 ameth = EVP_PKEY_asn1_find_str(&tmpeng, algname, -1);
307 #ifndef OPENSSL_NO_ENGINE
309 ameth = ENGINE_get_pkey_asn1_meth_str(e, algname, -1);
313 BIO_printf(bio_err, "Algorithm %s not found\n", algname);
319 EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
320 #ifndef OPENSSL_NO_ENGINE
322 ENGINE_finish(tmpeng);
324 ctx = EVP_PKEY_CTX_new_id(pkey_id, e);
329 if (EVP_PKEY_paramgen_init(ctx) <= 0)
332 if (EVP_PKEY_keygen_init(ctx) <= 0)
340 BIO_printf(bio_err, "Error initializing %s context\n", algname);
341 ERR_print_errors(bio_err);
342 EVP_PKEY_CTX_free(ctx);
347 static int genpkey_cb(EVP_PKEY_CTX *ctx)
350 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
352 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);