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git.ipfire.org Git - thirdparty/openssl.git/blob - apps/rsa.c
1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
57 /* ====================================================================
58 * Copyright (c) 1999-2015 The OpenSSL Project. All rights reserved.
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * licensing@OpenSSL.org.
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
86 * 6. Redistributions of any form whatsoever must retain the following
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
106 #include <openssl/opensslconf.h>
107 #ifndef OPENSSL_NO_RSA
113 # include <openssl/bio.h>
114 # include <openssl/err.h>
115 # include <openssl/rsa.h>
116 # include <openssl/evp.h>
117 # include <openssl/x509.h>
118 # include <openssl/pem.h>
119 # include <openssl/bn.h>
121 typedef enum OPTION_choice
{
122 OPT_ERR
= -1, OPT_EOF
= 0, OPT_HELP
,
123 OPT_INFORM
, OPT_OUTFORM
, OPT_ENGINE
, OPT_IN
, OPT_OUT
,
124 OPT_PUBIN
, OPT_PUBOUT
, OPT_PASSOUT
, OPT_PASSIN
,
125 OPT_RSAPUBKEY_IN
, OPT_RSAPUBKEY_OUT
, OPT_PVK_STRONG
, OPT_PVK_WEAK
,
126 OPT_PVK_NONE
, OPT_NOOUT
, OPT_TEXT
, OPT_MODULUS
, OPT_CHECK
, OPT_CIPHER
129 OPTIONS rsa_options
[] = {
130 {"help", OPT_HELP
, '-', "Display this summary"},
131 {"inform", OPT_INFORM
, 'f', "Input format, one of DER NET PEM"},
132 {"outform", OPT_OUTFORM
, 'f', "Output format, one of DER NET PEM PVK"},
133 {"in", OPT_IN
, '<', "Input file"},
134 {"out", OPT_OUT
, '>', "Output file"},
135 {"pubin", OPT_PUBIN
, '-', "Expect a public key in input file"},
136 {"pubout", OPT_PUBOUT
, '-', "Output a public key"},
137 {"passout", OPT_PASSOUT
, 's', "Output file pass phrase source"},
138 {"passin", OPT_PASSIN
, 's', "Input file pass phrase source"},
139 {"RSAPublicKey_in", OPT_RSAPUBKEY_IN
, '-', "Input is an RSAPublicKey"},
140 {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT
, '-', "Output is an RSAPublicKey"},
141 {"noout", OPT_NOOUT
, '-', "Don't print key out"},
142 {"text", OPT_TEXT
, '-', "Print the key in text"},
143 {"modulus", OPT_MODULUS
, '-', "Print the RSA key modulus"},
144 {"check", OPT_CHECK
, '-', "Verify key consistency"},
145 {"", OPT_CIPHER
, '-', "Any supported cipher"},
146 # ifdef OPENSSL_NO_RC4
147 {"pvk-strong", OPT_PVK_STRONG
, '-'},
148 {"pvk-weak", OPT_PVK_WEAK
, '-'},
149 {"pvk-none", OPT_PVK_NONE
, '-'},
151 # ifndef OPENSSL_NO_ENGINE
152 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
157 int rsa_main(int argc
, char **argv
)
162 const EVP_CIPHER
*enc
= NULL
;
163 char *infile
= NULL
, *outfile
= NULL
, *prog
;
164 char *passin
= NULL
, *passout
= NULL
, *passinarg
= NULL
, *passoutarg
= NULL
;
166 int informat
= FORMAT_PEM
, outformat
= FORMAT_PEM
, text
= 0, check
= 0;
167 int noout
= 0, modulus
= 0, pubin
= 0, pubout
= 0, pvk_encr
= 2, ret
= 1;
170 prog
= opt_init(argc
, argv
, rsa_options
);
171 while ((o
= opt_next()) != OPT_EOF
) {
176 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
179 opt_help(rsa_options
);
183 if (!opt_format(opt_arg(), OPT_FMT_ANY
, &informat
))
190 if (!opt_format(opt_arg(), OPT_FMT_ANY
, &outformat
))
197 passinarg
= opt_arg();
200 passoutarg
= opt_arg();
203 e
= setup_engine(opt_arg(), 0);
211 case OPT_RSAPUBKEY_IN
:
214 case OPT_RSAPUBKEY_OUT
:
217 #ifndef OPENSSL_NO_RC4
246 if (!opt_cipher(opt_unknown(), &enc
))
251 argc
= opt_num_rest();
253 private = text
|| (!pubout
&& !noout
) ? 1 : 0;
255 if (!app_passwd(passinarg
, passoutarg
, &passin
, &passout
)) {
256 BIO_printf(bio_err
, "Error getting passwords\n");
259 if (check
&& pubin
) {
260 BIO_printf(bio_err
, "Only private keys can be checked\n");
270 if (informat
== FORMAT_PEM
)
271 tmpformat
= FORMAT_PEMRSA
;
272 else if (informat
== FORMAT_ASN1
)
273 tmpformat
= FORMAT_ASN1RSA
;
275 tmpformat
= informat
;
277 pkey
= load_pubkey(infile
, tmpformat
, 1, passin
, e
, "Public Key");
279 pkey
= load_key(infile
, informat
, 1, passin
, e
, "Private Key");
282 rsa
= EVP_PKEY_get1_RSA(pkey
);
287 ERR_print_errors(bio_err
);
291 out
= bio_open_owner(outfile
, outformat
, private);
297 if (!RSA_print(out
, rsa
, 0)) {
299 ERR_print_errors(bio_err
);
305 BIO_printf(out
, "Modulus=");
306 BN_print(out
, rsa
->n
);
307 BIO_printf(out
, "\n");
311 int r
= RSA_check_key(rsa
);
314 BIO_printf(out
, "RSA key ok\n");
318 while ((err
= ERR_peek_error()) != 0 &&
319 ERR_GET_LIB(err
) == ERR_LIB_RSA
&&
320 ERR_GET_FUNC(err
) == RSA_F_RSA_CHECK_KEY
&&
321 ERR_GET_REASON(err
) != ERR_R_MALLOC_FAILURE
) {
322 BIO_printf(out
, "RSA key error: %s\n",
323 ERR_reason_error_string(err
));
324 ERR_get_error(); /* remove e from error stack */
328 /* should happen only if r == -1 */
329 if (r
== -1 || ERR_peek_error() != 0) {
330 ERR_print_errors(bio_err
);
339 BIO_printf(bio_err
, "writing RSA key\n");
340 if (outformat
== FORMAT_ASN1
) {
341 if (pubout
|| pubin
) {
343 i
= i2d_RSAPublicKey_bio(out
, rsa
);
345 i
= i2d_RSA_PUBKEY_bio(out
, rsa
);
348 i
= i2d_RSAPrivateKey_bio(out
, rsa
);
351 else if (outformat
== FORMAT_PEM
) {
352 if (pubout
|| pubin
) {
354 i
= PEM_write_bio_RSAPublicKey(out
, rsa
);
356 i
= PEM_write_bio_RSA_PUBKEY(out
, rsa
);
359 i
= PEM_write_bio_RSAPrivateKey(out
, rsa
,
360 enc
, NULL
, 0, NULL
, passout
);
362 # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
363 } else if (outformat
== FORMAT_MSBLOB
|| outformat
== FORMAT_PVK
) {
366 EVP_PKEY_set1_RSA(pk
, rsa
);
367 if (outformat
== FORMAT_PVK
)
368 i
= i2b_PVK_bio(out
, pk
, pvk_encr
, 0, passout
);
369 else if (pubin
|| pubout
)
370 i
= i2b_PublicKey_bio(out
, pk
);
373 i
= i2b_PrivateKey_bio(out
, pk
);
378 BIO_printf(bio_err
, "bad output format specified for outfile\n");
382 BIO_printf(bio_err
, "unable to write key\n");
383 ERR_print_errors(bio_err
);
389 OPENSSL_free(passin
);
390 OPENSSL_free(passout
);
393 #else /* !OPENSSL_NO_RSA */
396 static void *dummy
= &dummy
;