Remove -WX option from debug-VC-WIN32
[openssl.git] / apps / rsa.c
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
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