1 /* rsautl.c */
2 /*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 2000.
5 */
6 /* ====================================================================
7 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60 #include <openssl/opensslconf.h>
61 #ifndef OPENSSL_NO_RSA
62
63 # include "apps.h"
64 # include <string.h>
65 # include <openssl/err.h>
66 # include <openssl/pem.h>
67 # include <openssl/rsa.h>
68
69 # define RSA_SIGN 1
70 # define RSA_VERIFY 2
71 # define RSA_ENCRYPT 3
72 # define RSA_DECRYPT 4
73
74 # define KEY_PRIVKEY 1
75 # define KEY_PUBKEY 2
76 # define KEY_CERT 3
77
78 static void usage(void);
79
80 # undef PROG
81
82 # define PROG rsautl_main
83
84 int MAIN(int argc, char **);
85
MAIN(int argc,char ** argv)86 int MAIN(int argc, char **argv)
87 {
88 ENGINE *e = NULL;
89 BIO *in = NULL, *out = NULL;
90 char *infile = NULL, *outfile = NULL;
91 char *engine = NULL;
92 char *keyfile = NULL;
93 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
94 int keyform = FORMAT_PEM;
95 char need_priv = 0, badarg = 0, rev = 0;
96 char hexdump = 0, asn1parse = 0;
97 X509 *x;
98 EVP_PKEY *pkey = NULL;
99 RSA *rsa = NULL;
100 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
101 char *passargin = NULL, *passin = NULL;
102 int rsa_inlen, rsa_outlen = 0;
103 int keysize;
104
105 int ret = 1;
106
107 argc--;
108 argv++;
109
110 if (!bio_err)
111 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
112
113 if (!load_config(bio_err, NULL))
114 goto end;
115 ERR_load_crypto_strings();
116 OpenSSL_add_all_algorithms();
117 pad = RSA_PKCS1_PADDING;
118
119 while (argc >= 1) {
120 if (!strcmp(*argv, "-in")) {
121 if (--argc < 1)
122 badarg = 1;
123 else
124 infile = *(++argv);
125 } else if (!strcmp(*argv, "-out")) {
126 if (--argc < 1)
127 badarg = 1;
128 else
129 outfile = *(++argv);
130 } else if (!strcmp(*argv, "-inkey")) {
131 if (--argc < 1)
132 badarg = 1;
133 else
134 keyfile = *(++argv);
135 } else if (!strcmp(*argv, "-passin")) {
136 if (--argc < 1)
137 badarg = 1;
138 else
139 passargin = *(++argv);
140 } else if (strcmp(*argv, "-keyform") == 0) {
141 if (--argc < 1)
142 badarg = 1;
143 else
144 keyform = str2fmt(*(++argv));
145 # ifndef OPENSSL_NO_ENGINE
146 } else if (!strcmp(*argv, "-engine")) {
147 if (--argc < 1)
148 badarg = 1;
149 else
150 engine = *(++argv);
151 # endif
152 } else if (!strcmp(*argv, "-pubin")) {
153 key_type = KEY_PUBKEY;
154 } else if (!strcmp(*argv, "-certin")) {
155 key_type = KEY_CERT;
156 } else if (!strcmp(*argv, "-asn1parse"))
157 asn1parse = 1;
158 else if (!strcmp(*argv, "-hexdump"))
159 hexdump = 1;
160 else if (!strcmp(*argv, "-raw"))
161 pad = RSA_NO_PADDING;
162 else if (!strcmp(*argv, "-oaep"))
163 pad = RSA_PKCS1_OAEP_PADDING;
164 else if (!strcmp(*argv, "-ssl"))
165 pad = RSA_SSLV23_PADDING;
166 else if (!strcmp(*argv, "-pkcs"))
167 pad = RSA_PKCS1_PADDING;
168 else if (!strcmp(*argv, "-x931"))
169 pad = RSA_X931_PADDING;
170 else if (!strcmp(*argv, "-sign")) {
171 rsa_mode = RSA_SIGN;
172 need_priv = 1;
173 } else if (!strcmp(*argv, "-verify"))
174 rsa_mode = RSA_VERIFY;
175 else if (!strcmp(*argv, "-rev"))
176 rev = 1;
177 else if (!strcmp(*argv, "-encrypt"))
178 rsa_mode = RSA_ENCRYPT;
179 else if (!strcmp(*argv, "-decrypt")) {
180 rsa_mode = RSA_DECRYPT;
181 need_priv = 1;
182 } else
183 badarg = 1;
184 if (badarg) {
185 usage();
186 goto end;
187 }
188 argc--;
189 argv++;
190 }
191
192 if (need_priv && (key_type != KEY_PRIVKEY)) {
193 BIO_printf(bio_err, "A private key is needed for this operation\n");
194 goto end;
195 }
196 e = setup_engine(bio_err, engine, 0);
197 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
198 BIO_printf(bio_err, "Error getting password\n");
199 goto end;
200 }
201
202 /* FIXME: seed PRNG only if needed */
203 app_RAND_load_file(NULL, bio_err, 0);
204
205 switch (key_type) {
206 case KEY_PRIVKEY:
207 pkey = load_key(bio_err, keyfile, keyform, 0,
208 passin, e, "Private Key");
209 break;
210
211 case KEY_PUBKEY:
212 pkey = load_pubkey(bio_err, keyfile, keyform, 0,
213 NULL, e, "Public Key");
214 break;
215
216 case KEY_CERT:
217 x = load_cert(bio_err, keyfile, keyform, NULL, e, "Certificate");
218 if (x) {
219 pkey = X509_get_pubkey(x);
220 X509_free(x);
221 }
222 break;
223 }
224
225 if (!pkey) {
226 return 1;
227 }
228
229 rsa = EVP_PKEY_get1_RSA(pkey);
230 EVP_PKEY_free(pkey);
231
232 if (!rsa) {
233 BIO_printf(bio_err, "Error getting RSA key\n");
234 ERR_print_errors(bio_err);
235 goto end;
236 }
237
238 if (infile) {
239 if (!(in = BIO_new_file(infile, "rb"))) {
240 BIO_printf(bio_err, "Error Reading Input File\n");
241 ERR_print_errors(bio_err);
242 goto end;
243 }
244 } else
245 in = BIO_new_fp(stdin, BIO_NOCLOSE);
246
247 if (outfile) {
248 if (!(out = BIO_new_file(outfile, "wb"))) {
249 BIO_printf(bio_err, "Error Writing Output File\n");
250 ERR_print_errors(bio_err);
251 goto end;
252 }
253 } else {
254 out = BIO_new_fp(stdout, BIO_NOCLOSE);
255 # ifdef OPENSSL_SYS_VMS
256 {
257 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
258 out = BIO_push(tmpbio, out);
259 }
260 # endif
261 }
262
263 keysize = RSA_size(rsa);
264
265 rsa_in = OPENSSL_malloc(keysize * 2);
266 rsa_out = OPENSSL_malloc(keysize);
267 if (!rsa_in || !rsa_out) {
268 BIO_printf(bio_err, "Out of memory\n");
269 ERR_print_errors(bio_err);
270 goto end;
271 }
272
273 /* Read the input data */
274 rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
275 if (rsa_inlen < 0) {
276 BIO_printf(bio_err, "Error reading input Data\n");
277 exit(1);
278 }
279 if (rev) {
280 int i;
281 unsigned char ctmp;
282 for (i = 0; i < rsa_inlen / 2; i++) {
283 ctmp = rsa_in[i];
284 rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
285 rsa_in[rsa_inlen - 1 - i] = ctmp;
286 }
287 }
288 switch (rsa_mode) {
289
290 case RSA_VERIFY:
291 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
292 break;
293
294 case RSA_SIGN:
295 rsa_outlen =
296 RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
297 break;
298
299 case RSA_ENCRYPT:
300 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
301 break;
302
303 case RSA_DECRYPT:
304 rsa_outlen =
305 RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
306 break;
307
308 }
309
310 if (rsa_outlen < 0) {
311 BIO_printf(bio_err, "RSA operation error\n");
312 ERR_print_errors(bio_err);
313 goto end;
314 }
315 ret = 0;
316 if (asn1parse) {
317 if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
318 ERR_print_errors(bio_err);
319 }
320 } else if (hexdump)
321 BIO_dump(out, (char *)rsa_out, rsa_outlen);
322 else
323 BIO_write(out, rsa_out, rsa_outlen);
324 end:
325 RSA_free(rsa);
326 release_engine(e);
327 BIO_free(in);
328 BIO_free_all(out);
329 if (rsa_in)
330 OPENSSL_free(rsa_in);
331 if (rsa_out)
332 OPENSSL_free(rsa_out);
333 if (passin)
334 OPENSSL_free(passin);
335 return ret;
336 }
337
usage()338 static void usage()
339 {
340 BIO_printf(bio_err, "Usage: rsautl [options]\n");
341 BIO_printf(bio_err, "-in file input file\n");
342 BIO_printf(bio_err, "-out file output file\n");
343 BIO_printf(bio_err, "-inkey file input key\n");
344 BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
345 BIO_printf(bio_err, "-pubin input is an RSA public\n");
346 BIO_printf(bio_err,
347 "-certin input is a certificate carrying an RSA public key\n");
348 BIO_printf(bio_err, "-ssl use SSL v2 padding\n");
349 BIO_printf(bio_err, "-raw use no padding\n");
350 BIO_printf(bio_err,
351 "-pkcs use PKCS#1 v1.5 padding (default)\n");
352 BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n");
353 BIO_printf(bio_err, "-sign sign with private key\n");
354 BIO_printf(bio_err, "-verify verify with public key\n");
355 BIO_printf(bio_err, "-encrypt encrypt with public key\n");
356 BIO_printf(bio_err, "-decrypt decrypt with private key\n");
357 BIO_printf(bio_err, "-hexdump hex dump output\n");
358 # ifndef OPENSSL_NO_ENGINE
359 BIO_printf(bio_err,
360 "-engine e use engine e, possibly a hardware device.\n");
361 BIO_printf(bio_err, "-passin arg pass phrase source\n");
362 # endif
363
364 }
365
366 #else /* !OPENSSL_NO_RSA */
367
368 # if PEDANTIC
369 static void *dummy = &dummy;
370 # endif
371
372 #endif
373