1 /* apps/rsa.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #include <openssl/opensslconf.h>
60 #ifndef OPENSSL_NO_RSA
61 #include <stdio.h>
62 #include <stdlib.h>
63 #include <string.h>
64 #include <time.h>
65 #include "apps.h"
66 #include <openssl/bio.h>
67 #include <openssl/err.h>
68 #include <openssl/rsa.h>
69 #include <openssl/evp.h>
70 #include <openssl/x509.h>
71 #include <openssl/pem.h>
72 #include <openssl/bn.h>
73
74 #undef PROG
75 #define PROG rsa_main
76
77 /* -inform arg - input format - default PEM (one of DER, NET or PEM)
78 * -outform arg - output format - default PEM
79 * -in arg - input file - default stdin
80 * -out arg - output file - default stdout
81 * -des - encrypt output if PEM format with DES in cbc mode
82 * -des3 - encrypt output if PEM format
83 * -idea - encrypt output if PEM format
84 * -seed - encrypt output if PEM format
85 * -aes128 - encrypt output if PEM format
86 * -aes192 - encrypt output if PEM format
87 * -aes256 - encrypt output if PEM format
88 * -camellia128 - encrypt output if PEM format
89 * -camellia192 - encrypt output if PEM format
90 * -camellia256 - encrypt output if PEM format
91 * -text - print a text version
92 * -modulus - print the RSA key modulus
93 * -check - verify key consistency
94 * -pubin - Expect a public key in input file.
95 * -pubout - Output a public key.
96 */
97
98 int MAIN(int, char **);
99
MAIN(int argc,char ** argv)100 int MAIN(int argc, char **argv)
101 {
102 ENGINE *e = NULL;
103 int ret=1;
104 RSA *rsa=NULL;
105 int i,badops=0, sgckey=0;
106 const EVP_CIPHER *enc=NULL;
107 BIO *out=NULL;
108 int informat,outformat,text=0,check=0,noout=0;
109 int pubin = 0, pubout = 0;
110 char *infile,*outfile,*prog;
111 char *passargin = NULL, *passargout = NULL;
112 char *passin = NULL, *passout = NULL;
113 #ifndef OPENSSL_NO_ENGINE
114 char *engine=NULL;
115 #endif
116 int modulus=0;
117
118 int pvk_encr = 2;
119
120 apps_startup();
121
122 if (bio_err == NULL)
123 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
124 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
125
126 if (!load_config(bio_err, NULL))
127 goto end;
128
129 infile=NULL;
130 outfile=NULL;
131 informat=FORMAT_PEM;
132 outformat=FORMAT_PEM;
133
134 prog=argv[0];
135 argc--;
136 argv++;
137 while (argc >= 1)
138 {
139 if (strcmp(*argv,"-inform") == 0)
140 {
141 if (--argc < 1) goto bad;
142 informat=str2fmt(*(++argv));
143 }
144 else if (strcmp(*argv,"-outform") == 0)
145 {
146 if (--argc < 1) goto bad;
147 outformat=str2fmt(*(++argv));
148 }
149 else if (strcmp(*argv,"-in") == 0)
150 {
151 if (--argc < 1) goto bad;
152 infile= *(++argv);
153 }
154 else if (strcmp(*argv,"-out") == 0)
155 {
156 if (--argc < 1) goto bad;
157 outfile= *(++argv);
158 }
159 else if (strcmp(*argv,"-passin") == 0)
160 {
161 if (--argc < 1) goto bad;
162 passargin= *(++argv);
163 }
164 else if (strcmp(*argv,"-passout") == 0)
165 {
166 if (--argc < 1) goto bad;
167 passargout= *(++argv);
168 }
169 #ifndef OPENSSL_NO_ENGINE
170 else if (strcmp(*argv,"-engine") == 0)
171 {
172 if (--argc < 1) goto bad;
173 engine= *(++argv);
174 }
175 #endif
176 else if (strcmp(*argv,"-sgckey") == 0)
177 sgckey=1;
178 else if (strcmp(*argv,"-pubin") == 0)
179 pubin=1;
180 else if (strcmp(*argv,"-pubout") == 0)
181 pubout=1;
182 else if (strcmp(*argv,"-RSAPublicKey_in") == 0)
183 pubin = 2;
184 else if (strcmp(*argv,"-RSAPublicKey_out") == 0)
185 pubout = 2;
186 else if (strcmp(*argv,"-pvk-strong") == 0)
187 pvk_encr=2;
188 else if (strcmp(*argv,"-pvk-weak") == 0)
189 pvk_encr=1;
190 else if (strcmp(*argv,"-pvk-none") == 0)
191 pvk_encr=0;
192 else if (strcmp(*argv,"-noout") == 0)
193 noout=1;
194 else if (strcmp(*argv,"-text") == 0)
195 text=1;
196 else if (strcmp(*argv,"-modulus") == 0)
197 modulus=1;
198 else if (strcmp(*argv,"-check") == 0)
199 check=1;
200 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
201 {
202 BIO_printf(bio_err,"unknown option %s\n",*argv);
203 badops=1;
204 break;
205 }
206 argc--;
207 argv++;
208 }
209
210 if (badops)
211 {
212 bad:
213 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
214 BIO_printf(bio_err,"where options are\n");
215 BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n");
216 BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n");
217 BIO_printf(bio_err," -in arg input file\n");
218 BIO_printf(bio_err," -sgckey Use IIS SGC key format\n");
219 BIO_printf(bio_err," -passin arg input file pass phrase source\n");
220 BIO_printf(bio_err," -out arg output file\n");
221 BIO_printf(bio_err," -passout arg output file pass phrase source\n");
222 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n");
223 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n");
224 #ifndef OPENSSL_NO_IDEA
225 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n");
226 #endif
227 #ifndef OPENSSL_NO_SEED
228 BIO_printf(bio_err," -seed encrypt PEM output with cbc seed\n");
229 #endif
230 #ifndef OPENSSL_NO_AES
231 BIO_printf(bio_err," -aes128, -aes192, -aes256\n");
232 BIO_printf(bio_err," encrypt PEM output with cbc aes\n");
233 #endif
234 #ifndef OPENSSL_NO_CAMELLIA
235 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n");
236 BIO_printf(bio_err," encrypt PEM output with cbc camellia\n");
237 #endif
238 BIO_printf(bio_err," -text print the key in text\n");
239 BIO_printf(bio_err," -noout don't print key out\n");
240 BIO_printf(bio_err," -modulus print the RSA key modulus\n");
241 BIO_printf(bio_err," -check verify key consistency\n");
242 BIO_printf(bio_err," -pubin expect a public key in input file\n");
243 BIO_printf(bio_err," -pubout output a public key\n");
244 #ifndef OPENSSL_NO_ENGINE
245 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
246 #endif
247 goto end;
248 }
249
250 ERR_load_crypto_strings();
251
252 #ifndef OPENSSL_NO_ENGINE
253 e = setup_engine(bio_err, engine, 0);
254 #endif
255
256 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
257 BIO_printf(bio_err, "Error getting passwords\n");
258 goto end;
259 }
260
261 if(check && pubin) {
262 BIO_printf(bio_err, "Only private keys can be checked\n");
263 goto end;
264 }
265
266 out=BIO_new(BIO_s_file());
267
268 {
269 EVP_PKEY *pkey;
270
271 if (pubin)
272 {
273 int tmpformat=-1;
274 if (pubin == 2)
275 {
276 if (informat == FORMAT_PEM)
277 tmpformat = FORMAT_PEMRSA;
278 else if (informat == FORMAT_ASN1)
279 tmpformat = FORMAT_ASN1RSA;
280 }
281 else if (informat == FORMAT_NETSCAPE && sgckey)
282 tmpformat = FORMAT_IISSGC;
283 else
284 tmpformat = informat;
285
286 pkey = load_pubkey(bio_err, infile, tmpformat, 1,
287 passin, e, "Public Key");
288 }
289 else
290 pkey = load_key(bio_err, infile,
291 (informat == FORMAT_NETSCAPE && sgckey ?
292 FORMAT_IISSGC : informat), 1,
293 passin, e, "Private Key");
294
295 if (pkey != NULL)
296 rsa = EVP_PKEY_get1_RSA(pkey);
297 EVP_PKEY_free(pkey);
298 }
299
300 if (rsa == NULL)
301 {
302 ERR_print_errors(bio_err);
303 goto end;
304 }
305
306 if (outfile == NULL)
307 {
308 BIO_set_fp(out,stdout,BIO_NOCLOSE);
309 #ifdef OPENSSL_SYS_VMS
310 {
311 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
312 out = BIO_push(tmpbio, out);
313 }
314 #endif
315 }
316 else
317 {
318 if (BIO_write_filename(out,outfile) <= 0)
319 {
320 perror(outfile);
321 goto end;
322 }
323 }
324
325 if (text)
326 if (!RSA_print(out,rsa,0))
327 {
328 perror(outfile);
329 ERR_print_errors(bio_err);
330 goto end;
331 }
332
333 if (modulus)
334 {
335 BIO_printf(out,"Modulus=");
336 BN_print(out,rsa->n);
337 BIO_printf(out,"\n");
338 }
339
340 if (check)
341 {
342 int r = RSA_check_key(rsa);
343
344 if (r == 1)
345 BIO_printf(out,"RSA key ok\n");
346 else if (r == 0)
347 {
348 unsigned long err;
349
350 while ((err = ERR_peek_error()) != 0 &&
351 ERR_GET_LIB(err) == ERR_LIB_RSA &&
352 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY &&
353 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE)
354 {
355 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err));
356 ERR_get_error(); /* remove e from error stack */
357 }
358 }
359
360 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */
361 {
362 ERR_print_errors(bio_err);
363 goto end;
364 }
365 }
366
367 if (noout)
368 {
369 ret = 0;
370 goto end;
371 }
372 BIO_printf(bio_err,"writing RSA key\n");
373 if (outformat == FORMAT_ASN1) {
374 if(pubout || pubin)
375 {
376 if (pubout == 2)
377 i=i2d_RSAPublicKey_bio(out,rsa);
378 else
379 i=i2d_RSA_PUBKEY_bio(out,rsa);
380 }
381 else i=i2d_RSAPrivateKey_bio(out,rsa);
382 }
383 #ifndef OPENSSL_NO_RC4
384 else if (outformat == FORMAT_NETSCAPE)
385 {
386 unsigned char *p,*pp;
387 int size;
388
389 i=1;
390 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey);
391 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL)
392 {
393 BIO_printf(bio_err,"Memory allocation failure\n");
394 goto end;
395 }
396 pp=p;
397 i2d_RSA_NET(rsa,&p,NULL, sgckey);
398 BIO_write(out,(char *)pp,size);
399 OPENSSL_free(pp);
400 }
401 #endif
402 else if (outformat == FORMAT_PEM) {
403 if(pubout || pubin)
404 {
405 if (pubout == 2)
406 i=PEM_write_bio_RSAPublicKey(out,rsa);
407 else
408 i=PEM_write_bio_RSA_PUBKEY(out,rsa);
409 }
410 else i=PEM_write_bio_RSAPrivateKey(out,rsa,
411 enc,NULL,0,NULL,passout);
412 #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
413 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
414 EVP_PKEY *pk;
415 pk = EVP_PKEY_new();
416 EVP_PKEY_set1_RSA(pk, rsa);
417 if (outformat == FORMAT_PVK)
418 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
419 else if (pubin || pubout)
420 i = i2b_PublicKey_bio(out, pk);
421 else
422 i = i2b_PrivateKey_bio(out, pk);
423 EVP_PKEY_free(pk);
424 #endif
425 } else {
426 BIO_printf(bio_err,"bad output format specified for outfile\n");
427 goto end;
428 }
429 if (i <= 0)
430 {
431 BIO_printf(bio_err,"unable to write key\n");
432 ERR_print_errors(bio_err);
433 }
434 else
435 ret=0;
436 end:
437 if(out != NULL) BIO_free_all(out);
438 if(rsa != NULL) RSA_free(rsa);
439 if(passin) OPENSSL_free(passin);
440 if(passout) OPENSSL_free(passout);
441 apps_shutdown();
442 OPENSSL_EXIT(ret);
443 }
444 #else /* !OPENSSL_NO_RSA */
445
446 # if PEDANTIC
447 static void *dummy=&dummy;
448 # endif
449
450 #endif
451