1 /* rsautl.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2000.
4 */
5 /* ====================================================================
6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59 #include <openssl/opensslconf.h>
60 #ifndef OPENSSL_NO_RSA
61
62 #include "apps.h"
63 #include <string.h>
64 #include <openssl/err.h>
65 #include <openssl/pem.h>
66 #include <openssl/rsa.h>
67
68 #define RSA_SIGN 1
69 #define RSA_VERIFY 2
70 #define RSA_ENCRYPT 3
71 #define RSA_DECRYPT 4
72
73 #define KEY_PRIVKEY 1
74 #define KEY_PUBKEY 2
75 #define KEY_CERT 3
76
77 static void usage(void);
78
79 #undef PROG
80
81 #define PROG rsautl_main
82
83 int MAIN(int argc, char **);
84
MAIN(int argc,char ** argv)85 int MAIN(int argc, char **argv)
86 {
87 ENGINE *e = NULL;
88 BIO *in = NULL, *out = NULL;
89 char *infile = NULL, *outfile = NULL;
90 #ifndef OPENSSL_NO_ENGINE
91 char *engine = NULL;
92 #endif
93 char *keyfile = NULL;
94 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
95 int keyform = FORMAT_PEM;
96 char need_priv = 0, badarg = 0, rev = 0;
97 char hexdump = 0, asn1parse = 0;
98 X509 *x;
99 EVP_PKEY *pkey = NULL;
100 RSA *rsa = NULL;
101 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
102 char *passargin = NULL, *passin = NULL;
103 int rsa_inlen, rsa_outlen = 0;
104 int keysize;
105
106 int ret = 1;
107
108 argc--;
109 argv++;
110
111 if(!bio_err) 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 {
121 if (!strcmp(*argv,"-in")) {
122 if (--argc < 1)
123 badarg = 1;
124 else
125 infile= *(++argv);
126 } else if (!strcmp(*argv,"-out")) {
127 if (--argc < 1)
128 badarg = 1;
129 else
130 outfile= *(++argv);
131 } else if(!strcmp(*argv, "-inkey")) {
132 if (--argc < 1)
133 badarg = 1;
134 else
135 keyfile = *(++argv);
136 } else if (!strcmp(*argv,"-passin")) {
137 if (--argc < 1)
138 badarg = 1;
139 else
140 passargin= *(++argv);
141 } else if (strcmp(*argv,"-keyform") == 0) {
142 if (--argc < 1)
143 badarg = 1;
144 else
145 keyform=str2fmt(*(++argv));
146 #ifndef OPENSSL_NO_ENGINE
147 } else if(!strcmp(*argv, "-engine")) {
148 if (--argc < 1)
149 badarg = 1;
150 else
151 engine = *(++argv);
152 #endif
153 } else if(!strcmp(*argv, "-pubin")) {
154 key_type = KEY_PUBKEY;
155 } else if(!strcmp(*argv, "-certin")) {
156 key_type = KEY_CERT;
157 }
158 else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1;
159 else if(!strcmp(*argv, "-hexdump")) hexdump = 1;
160 else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING;
161 else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING;
162 else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING;
163 else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING;
164 else if(!strcmp(*argv, "-x931")) pad = RSA_X931_PADDING;
165 else if(!strcmp(*argv, "-sign")) {
166 rsa_mode = RSA_SIGN;
167 need_priv = 1;
168 } else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY;
169 else if(!strcmp(*argv, "-rev")) rev = 1;
170 else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT;
171 else if(!strcmp(*argv, "-decrypt")) {
172 rsa_mode = RSA_DECRYPT;
173 need_priv = 1;
174 } else badarg = 1;
175 if(badarg) {
176 usage();
177 goto end;
178 }
179 argc--;
180 argv++;
181 }
182
183 if(need_priv && (key_type != KEY_PRIVKEY)) {
184 BIO_printf(bio_err, "A private key is needed for this operation\n");
185 goto end;
186 }
187
188 #ifndef OPENSSL_NO_ENGINE
189 e = setup_engine(bio_err, engine, 0);
190 #endif
191 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
192 BIO_printf(bio_err, "Error getting password\n");
193 goto end;
194 }
195
196 /* FIXME: seed PRNG only if needed */
197 app_RAND_load_file(NULL, bio_err, 0);
198
199 switch(key_type) {
200 case KEY_PRIVKEY:
201 pkey = load_key(bio_err, keyfile, keyform, 0,
202 passin, e, "Private Key");
203 break;
204
205 case KEY_PUBKEY:
206 pkey = load_pubkey(bio_err, keyfile, keyform, 0,
207 NULL, e, "Public Key");
208 break;
209
210 case KEY_CERT:
211 x = load_cert(bio_err, keyfile, keyform,
212 NULL, e, "Certificate");
213 if(x) {
214 pkey = X509_get_pubkey(x);
215 X509_free(x);
216 }
217 break;
218 }
219
220 if(!pkey) {
221 return 1;
222 }
223
224 rsa = EVP_PKEY_get1_RSA(pkey);
225 EVP_PKEY_free(pkey);
226
227 if(!rsa) {
228 BIO_printf(bio_err, "Error getting RSA key\n");
229 ERR_print_errors(bio_err);
230 goto end;
231 }
232
233
234 if(infile) {
235 if(!(in = BIO_new_file(infile, "rb"))) {
236 BIO_printf(bio_err, "Error Reading Input File\n");
237 ERR_print_errors(bio_err);
238 goto end;
239 }
240 } else in = BIO_new_fp(stdin, BIO_NOCLOSE);
241
242 if(outfile) {
243 if(!(out = BIO_new_file(outfile, "wb"))) {
244 BIO_printf(bio_err, "Error Reading Output File\n");
245 ERR_print_errors(bio_err);
246 goto end;
247 }
248 } else {
249 out = BIO_new_fp(stdout, BIO_NOCLOSE);
250 #ifdef OPENSSL_SYS_VMS
251 {
252 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
253 out = BIO_push(tmpbio, out);
254 }
255 #endif
256 }
257
258 keysize = RSA_size(rsa);
259
260 rsa_in = OPENSSL_malloc(keysize * 2);
261 rsa_out = OPENSSL_malloc(keysize);
262
263 /* Read the input data */
264 rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
265 if(rsa_inlen <= 0) {
266 BIO_printf(bio_err, "Error reading input Data\n");
267 exit(1);
268 }
269 if(rev) {
270 int i;
271 unsigned char ctmp;
272 for(i = 0; i < rsa_inlen/2; i++) {
273 ctmp = rsa_in[i];
274 rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
275 rsa_in[rsa_inlen - 1 - i] = ctmp;
276 }
277 }
278 switch(rsa_mode) {
279
280 case RSA_VERIFY:
281 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
282 break;
283
284 case RSA_SIGN:
285 rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
286 break;
287
288 case RSA_ENCRYPT:
289 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
290 break;
291
292 case RSA_DECRYPT:
293 rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
294 break;
295
296 }
297
298 if(rsa_outlen <= 0) {
299 BIO_printf(bio_err, "RSA operation error\n");
300 ERR_print_errors(bio_err);
301 goto end;
302 }
303 ret = 0;
304 if(asn1parse) {
305 if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
306 ERR_print_errors(bio_err);
307 }
308 } else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen);
309 else BIO_write(out, rsa_out, rsa_outlen);
310 end:
311 RSA_free(rsa);
312 BIO_free(in);
313 BIO_free_all(out);
314 if(rsa_in) OPENSSL_free(rsa_in);
315 if(rsa_out) OPENSSL_free(rsa_out);
316 if(passin) OPENSSL_free(passin);
317 return ret;
318 }
319
usage()320 static void usage()
321 {
322 BIO_printf(bio_err, "Usage: rsautl [options]\n");
323 BIO_printf(bio_err, "-in file input file\n");
324 BIO_printf(bio_err, "-out file output file\n");
325 BIO_printf(bio_err, "-inkey file input key\n");
326 BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
327 BIO_printf(bio_err, "-pubin input is an RSA public\n");
328 BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n");
329 BIO_printf(bio_err, "-ssl use SSL v2 padding\n");
330 BIO_printf(bio_err, "-raw use no padding\n");
331 BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n");
332 BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n");
333 BIO_printf(bio_err, "-sign sign with private key\n");
334 BIO_printf(bio_err, "-verify verify with public key\n");
335 BIO_printf(bio_err, "-encrypt encrypt with public key\n");
336 BIO_printf(bio_err, "-decrypt decrypt with private key\n");
337 BIO_printf(bio_err, "-hexdump hex dump output\n");
338 #ifndef OPENSSL_NO_ENGINE
339 BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
340 BIO_printf (bio_err, "-passin arg pass phrase source\n");
341 #endif
342
343 }
344
345 #else /* !OPENSSL_NO_RSA */
346
347 # if PEDANTIC
348 static void *dummy=&dummy;
349 # endif
350
351 #endif
352