]>
git.ipfire.org Git - thirdparty/openssl.git/blob - apps/genpkey.c
2 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
14 #include <openssl/pem.h>
15 #include <openssl/err.h>
16 #include <openssl/evp.h>
17 #ifndef OPENSSL_NO_ENGINE
18 # include <openssl/engine.h>
21 static int init_keygen_file(EVP_PKEY_CTX
**pctx
, const char *file
, ENGINE
*e
);
22 static int genpkey_cb(EVP_PKEY_CTX
*ctx
);
24 typedef enum OPTION_choice
{
25 OPT_ERR
= -1, OPT_EOF
= 0, OPT_HELP
,
26 OPT_ENGINE
, OPT_OUTFORM
, OPT_OUT
, OPT_PASS
, OPT_PARAMFILE
,
27 OPT_ALGORITHM
, OPT_PKEYOPT
, OPT_GENPARAM
, OPT_TEXT
, OPT_CIPHER
30 const OPTIONS genpkey_options
[] = {
31 {"help", OPT_HELP
, '-', "Display this summary"},
32 {"out", OPT_OUT
, '>', "Output file"},
33 {"outform", OPT_OUTFORM
, 'F', "output format (DER or PEM)"},
34 {"pass", OPT_PASS
, 's', "Output file pass phrase source"},
35 {"paramfile", OPT_PARAMFILE
, '<', "Parameters file"},
36 {"algorithm", OPT_ALGORITHM
, 's', "The public key algorithm"},
37 {"pkeyopt", OPT_PKEYOPT
, 's',
38 "Set the public key algorithm option as opt:value"},
39 {"genparam", OPT_GENPARAM
, '-', "Generate parameters, not key"},
40 {"text", OPT_TEXT
, '-', "Print the in text"},
41 {"", OPT_CIPHER
, '-', "Cipher to use to encrypt the key"},
42 #ifndef OPENSSL_NO_ENGINE
43 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
45 /* This is deliberately last. */
47 "Order of options may be important! See the documentation.\n"},
51 int genpkey_main(int argc
, char **argv
)
53 BIO
*in
= NULL
, *out
= NULL
;
55 EVP_PKEY
*pkey
= NULL
;
56 EVP_PKEY_CTX
*ctx
= NULL
;
57 char *outfile
= NULL
, *passarg
= NULL
, *pass
= NULL
, *prog
;
58 const EVP_CIPHER
*cipher
= NULL
;
60 int outformat
= FORMAT_PEM
, text
= 0, ret
= 1, rv
, do_param
= 0;
63 prog
= opt_init(argc
, argv
, genpkey_options
);
64 while ((o
= opt_next()) != OPT_EOF
) {
69 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
73 opt_help(genpkey_options
);
76 if (!opt_format(opt_arg(), OPT_FMT_PEMDER
, &outformat
))
86 e
= setup_engine(opt_arg(), 0);
91 if (!init_keygen_file(&ctx
, opt_arg(), e
))
95 if (!init_gen_str(&ctx
, opt_arg(), e
, do_param
))
100 BIO_printf(bio_err
, "%s: No keytype specified.\n", prog
);
103 if (pkey_ctrl_string(ctx
, opt_arg()) <= 0) {
105 "%s: Error setting %s parameter:\n",
107 ERR_print_errors(bio_err
);
120 if (!opt_cipher(opt_unknown(), &cipher
)
123 if (EVP_CIPHER_mode(cipher
) == EVP_CIPH_GCM_MODE
||
124 EVP_CIPHER_mode(cipher
) == EVP_CIPH_CCM_MODE
||
125 EVP_CIPHER_mode(cipher
) == EVP_CIPH_XTS_MODE
||
126 EVP_CIPHER_mode(cipher
) == EVP_CIPH_OCB_MODE
) {
127 BIO_printf(bio_err
, "%s: cipher mode not supported\n", prog
);
132 argc
= opt_num_rest();
136 private = do_param
? 0 : 1;
141 if (!app_passwd(passarg
, NULL
, &pass
, NULL
)) {
142 BIO_puts(bio_err
, "Error getting password\n");
146 out
= bio_open_owner(outfile
, outformat
, private);
150 EVP_PKEY_CTX_set_cb(ctx
, genpkey_cb
);
151 EVP_PKEY_CTX_set_app_data(ctx
, bio_err
);
154 if (EVP_PKEY_paramgen(ctx
, &pkey
) <= 0) {
155 BIO_puts(bio_err
, "Error generating parameters\n");
156 ERR_print_errors(bio_err
);
160 if (EVP_PKEY_keygen(ctx
, &pkey
) <= 0) {
161 BIO_puts(bio_err
, "Error generating key\n");
162 ERR_print_errors(bio_err
);
168 rv
= PEM_write_bio_Parameters(out
, pkey
);
169 } else if (outformat
== FORMAT_PEM
) {
171 rv
= PEM_write_bio_PrivateKey(out
, pkey
, cipher
, NULL
, 0, NULL
, pass
);
172 } else if (outformat
== FORMAT_ASN1
) {
174 rv
= i2d_PrivateKey_bio(out
, pkey
);
176 BIO_printf(bio_err
, "Bad format specified for key\n");
181 BIO_puts(bio_err
, "Error writing key\n");
182 ERR_print_errors(bio_err
);
187 rv
= EVP_PKEY_print_params(out
, pkey
, 0, NULL
);
189 rv
= EVP_PKEY_print_private(out
, pkey
, 0, NULL
);
192 BIO_puts(bio_err
, "Error printing key\n");
193 ERR_print_errors(bio_err
);
201 EVP_PKEY_CTX_free(ctx
);
209 static int init_keygen_file(EVP_PKEY_CTX
**pctx
, const char *file
, ENGINE
*e
)
212 EVP_PKEY
*pkey
= NULL
;
213 EVP_PKEY_CTX
*ctx
= NULL
;
215 BIO_puts(bio_err
, "Parameters already set!\n");
219 pbio
= BIO_new_file(file
, "r");
221 BIO_printf(bio_err
, "Can't open parameter file %s\n", file
);
225 pkey
= PEM_read_bio_Parameters(pbio
, NULL
);
229 BIO_printf(bio_err
, "Error reading parameter file %s\n", file
);
233 ctx
= EVP_PKEY_CTX_new(pkey
, e
);
236 if (EVP_PKEY_keygen_init(ctx
) <= 0)
243 BIO_puts(bio_err
, "Error initializing context\n");
244 ERR_print_errors(bio_err
);
245 EVP_PKEY_CTX_free(ctx
);
251 int init_gen_str(EVP_PKEY_CTX
**pctx
,
252 const char *algname
, ENGINE
*e
, int do_param
)
254 EVP_PKEY_CTX
*ctx
= NULL
;
255 const EVP_PKEY_ASN1_METHOD
*ameth
;
256 ENGINE
*tmpeng
= NULL
;
260 BIO_puts(bio_err
, "Algorithm already set!\n");
264 ameth
= EVP_PKEY_asn1_find_str(&tmpeng
, algname
, -1);
266 #ifndef OPENSSL_NO_ENGINE
268 ameth
= ENGINE_get_pkey_asn1_meth_str(e
, algname
, -1);
272 BIO_printf(bio_err
, "Algorithm %s not found\n", algname
);
278 EVP_PKEY_asn1_get0_info(&pkey_id
, NULL
, NULL
, NULL
, NULL
, ameth
);
279 #ifndef OPENSSL_NO_ENGINE
280 ENGINE_finish(tmpeng
);
282 ctx
= EVP_PKEY_CTX_new_id(pkey_id
, e
);
287 if (EVP_PKEY_paramgen_init(ctx
) <= 0)
290 if (EVP_PKEY_keygen_init(ctx
) <= 0)
298 BIO_printf(bio_err
, "Error initializing %s context\n", algname
);
299 ERR_print_errors(bio_err
);
300 EVP_PKEY_CTX_free(ctx
);
305 static int genpkey_cb(EVP_PKEY_CTX
*ctx
)
308 BIO
*b
= EVP_PKEY_CTX_get_app_data(ctx
);
310 p
= EVP_PKEY_CTX_get_keygen_info(ctx
, 0);