Win32 fixes. Add GOST algorithm to mkdef, update ordinals. Signed/unsigned fixes.
[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  * -aes128      - encrypt output if PEM format
85  * -aes192      - encrypt output if PEM format
86  * -aes256      - encrypt output if PEM format
87  * -camellia128 - encrypt output if PEM format
88  * -camellia192 - encrypt output if PEM format
89  * -camellia256 - encrypt output if PEM format
90  * -text        - print a text version
91  * -modulus     - print the RSA key modulus
92  * -check       - verify key consistency
93  * -pubin       - Expect a public key in input file.
94  * -pubout      - Output a public key.
95  */
96
97 int MAIN(int, char **);
98
99 int MAIN(int argc, char **argv)
100         {
101         ENGINE *e = NULL;
102         int ret=1;
103         RSA *rsa=NULL;
104         int i,badops=0, sgckey=0;
105         const EVP_CIPHER *enc=NULL;
106         BIO *out=NULL;
107         int informat,outformat,text=0,check=0,noout=0;
108         int pubin = 0, pubout = 0;
109         char *infile,*outfile,*prog;
110         char *passargin = NULL, *passargout = NULL;
111         char *passin = NULL, *passout = NULL;
112 #ifndef OPENSSL_NO_ENGINE
113         char *engine=NULL;
114 #endif
115         int modulus=0;
116
117         int pvk_encr = 2;
118
119         apps_startup();
120
121         if (bio_err == NULL)
122                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
123                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
124
125         if (!load_config(bio_err, NULL))
126                 goto end;
127
128         infile=NULL;
129         outfile=NULL;
130         informat=FORMAT_PEM;
131         outformat=FORMAT_PEM;
132
133         prog=argv[0];
134         argc--;
135         argv++;
136         while (argc >= 1)
137                 {
138                 if      (strcmp(*argv,"-inform") == 0)
139                         {
140                         if (--argc < 1) goto bad;
141                         informat=str2fmt(*(++argv));
142                         }
143                 else if (strcmp(*argv,"-outform") == 0)
144                         {
145                         if (--argc < 1) goto bad;
146                         outformat=str2fmt(*(++argv));
147                         }
148                 else if (strcmp(*argv,"-in") == 0)
149                         {
150                         if (--argc < 1) goto bad;
151                         infile= *(++argv);
152                         }
153                 else if (strcmp(*argv,"-out") == 0)
154                         {
155                         if (--argc < 1) goto bad;
156                         outfile= *(++argv);
157                         }
158                 else if (strcmp(*argv,"-passin") == 0)
159                         {
160                         if (--argc < 1) goto bad;
161                         passargin= *(++argv);
162                         }
163                 else if (strcmp(*argv,"-passout") == 0)
164                         {
165                         if (--argc < 1) goto bad;
166                         passargout= *(++argv);
167                         }
168 #ifndef OPENSSL_NO_ENGINE
169                 else if (strcmp(*argv,"-engine") == 0)
170                         {
171                         if (--argc < 1) goto bad;
172                         engine= *(++argv);
173                         }
174 #endif
175                 else if (strcmp(*argv,"-sgckey") == 0)
176                         sgckey=1;
177                 else if (strcmp(*argv,"-pubin") == 0)
178                         pubin=1;
179                 else if (strcmp(*argv,"-pubout") == 0)
180                         pubout=1;
181                 else if (strcmp(*argv,"-RSAPublicKey_in") == 0)
182                         pubin = 2;
183                 else if (strcmp(*argv,"-RSAPublicKey_out") == 0)
184                         pubout = 2;
185                 else if (strcmp(*argv,"-pvk-strong") == 0)
186                         pvk_encr=2;
187                 else if (strcmp(*argv,"-pvk-weak") == 0)
188                         pvk_encr=1;
189                 else if (strcmp(*argv,"-pvk-none") == 0)
190                         pvk_encr=0;
191                 else if (strcmp(*argv,"-noout") == 0)
192                         noout=1;
193                 else if (strcmp(*argv,"-text") == 0)
194                         text=1;
195                 else if (strcmp(*argv,"-modulus") == 0)
196                         modulus=1;
197                 else if (strcmp(*argv,"-check") == 0)
198                         check=1;
199                 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
200                         {
201                         BIO_printf(bio_err,"unknown option %s\n",*argv);
202                         badops=1;
203                         break;
204                         }
205                 argc--;
206                 argv++;
207                 }
208
209         if (badops)
210                 {
211 bad:
212                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
213                 BIO_printf(bio_err,"where options are\n");
214                 BIO_printf(bio_err," -inform arg     input format - one of DER NET PEM\n");
215                 BIO_printf(bio_err," -outform arg    output format - one of DER NET PEM\n");
216                 BIO_printf(bio_err," -in arg         input file\n");
217                 BIO_printf(bio_err," -sgckey         Use IIS SGC key format\n");
218                 BIO_printf(bio_err," -passin arg     input file pass phrase source\n");
219                 BIO_printf(bio_err," -out arg        output file\n");
220                 BIO_printf(bio_err," -passout arg    output file pass phrase source\n");
221                 BIO_printf(bio_err," -des            encrypt PEM output with cbc des\n");
222                 BIO_printf(bio_err," -des3           encrypt PEM output with ede cbc des using 168 bit key\n");
223 #ifndef OPENSSL_NO_IDEA
224                 BIO_printf(bio_err," -idea           encrypt PEM output with cbc idea\n");
225 #endif
226 #ifndef OPENSSL_NO_AES
227                 BIO_printf(bio_err," -aes128, -aes192, -aes256\n");
228                 BIO_printf(bio_err,"                 encrypt PEM output with cbc aes\n");
229 #endif
230 #ifndef OPENSSL_NO_CAMELLIA
231                 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n");
232                 BIO_printf(bio_err,"                 encrypt PEM output with cbc camellia\n");
233 #endif
234                 BIO_printf(bio_err," -text           print the key in text\n");
235                 BIO_printf(bio_err," -noout          don't print key out\n");
236                 BIO_printf(bio_err," -modulus        print the RSA key modulus\n");
237                 BIO_printf(bio_err," -check          verify key consistency\n");
238                 BIO_printf(bio_err," -pubin          expect a public key in input file\n");
239                 BIO_printf(bio_err," -pubout         output a public key\n");
240 #ifndef OPENSSL_NO_ENGINE
241                 BIO_printf(bio_err," -engine e       use engine e, possibly a hardware device.\n");
242 #endif
243                 goto end;
244                 }
245
246         ERR_load_crypto_strings();
247
248 #ifndef OPENSSL_NO_ENGINE
249         e = setup_engine(bio_err, engine, 0);
250 #endif
251
252         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
253                 BIO_printf(bio_err, "Error getting passwords\n");
254                 goto end;
255         }
256
257         if(check && pubin) {
258                 BIO_printf(bio_err, "Only private keys can be checked\n");
259                 goto end;
260         }
261
262         out=BIO_new(BIO_s_file());
263
264         {
265                 EVP_PKEY        *pkey;
266
267                 if (pubin)
268                         {
269                         int tmpformat=-1;
270                         if (pubin == 2)
271                                 {
272                                 if (informat == FORMAT_PEM)
273                                         tmpformat = FORMAT_PEMRSA;
274                                 else if (informat == FORMAT_ASN1)
275                                         tmpformat = FORMAT_ASN1RSA;
276                                 }
277                         else if (informat == FORMAT_NETSCAPE && sgckey)
278                                 tmpformat = FORMAT_IISSGC;
279                         else
280                                 tmpformat = informat;
281                                         
282                         pkey = load_pubkey(bio_err, infile, tmpformat, 1,
283                                 passin, e, "Public Key");
284                         }
285                 else
286                         pkey = load_key(bio_err, infile,
287                                 (informat == FORMAT_NETSCAPE && sgckey ?
288                                         FORMAT_IISSGC : informat), 1,
289                                 passin, e, "Private Key");
290
291                 if (pkey != NULL)
292                         rsa = EVP_PKEY_get1_RSA(pkey);
293                 EVP_PKEY_free(pkey);
294         }
295
296         if (rsa == NULL)
297                 {
298                 ERR_print_errors(bio_err);
299                 goto end;
300                 }
301
302         if (outfile == NULL)
303                 {
304                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
305 #ifdef OPENSSL_SYS_VMS
306                 {
307                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
308                 out = BIO_push(tmpbio, out);
309                 }
310 #endif
311                 }
312         else
313                 {
314                 if (BIO_write_filename(out,outfile) <= 0)
315                         {
316                         perror(outfile);
317                         goto end;
318                         }
319                 }
320
321         if (text) 
322                 if (!RSA_print(out,rsa,0))
323                         {
324                         perror(outfile);
325                         ERR_print_errors(bio_err);
326                         goto end;
327                         }
328
329         if (modulus)
330                 {
331                 BIO_printf(out,"Modulus=");
332                 BN_print(out,rsa->n);
333                 BIO_printf(out,"\n");
334                 }
335
336         if (check)
337                 {
338                 int r = RSA_check_key(rsa);
339
340                 if (r == 1)
341                         BIO_printf(out,"RSA key ok\n");
342                 else if (r == 0)
343                         {
344                         unsigned long err;
345
346                         while ((err = ERR_peek_error()) != 0 &&
347                                 ERR_GET_LIB(err) == ERR_LIB_RSA &&
348                                 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY &&
349                                 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE)
350                                 {
351                                 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err));
352                                 ERR_get_error(); /* remove e from error stack */
353                                 }
354                         }
355                 
356                 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */
357                         {
358                         ERR_print_errors(bio_err);
359                         goto end;
360                         }
361                 }
362                 
363         if (noout)
364                 {
365                 ret = 0;
366                 goto end;
367                 }
368         BIO_printf(bio_err,"writing RSA key\n");
369         if      (outformat == FORMAT_ASN1) {
370                 if(pubout || pubin) 
371                         {
372                         if (pubout == 2)
373                                 i=i2d_RSAPublicKey_bio(out,rsa);
374                         else
375                                 i=i2d_RSA_PUBKEY_bio(out,rsa);
376                         }
377                 else i=i2d_RSAPrivateKey_bio(out,rsa);
378         }
379 #ifndef OPENSSL_NO_RC4
380         else if (outformat == FORMAT_NETSCAPE)
381                 {
382                 unsigned char *p,*pp;
383                 int size;
384
385                 i=1;
386                 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey);
387                 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL)
388                         {
389                         BIO_printf(bio_err,"Memory allocation failure\n");
390                         goto end;
391                         }
392                 pp=p;
393                 i2d_RSA_NET(rsa,&p,NULL, sgckey);
394                 BIO_write(out,(char *)pp,size);
395                 OPENSSL_free(pp);
396                 }
397 #endif
398         else if (outformat == FORMAT_PEM) {
399                 if(pubout || pubin)
400                         {
401                         if (pubout == 2)
402                                 i=PEM_write_bio_RSAPublicKey(out,rsa);
403                         else
404                                 i=PEM_write_bio_RSA_PUBKEY(out,rsa);
405                         }
406                 else i=PEM_write_bio_RSAPrivateKey(out,rsa,
407                                                 enc,NULL,0,NULL,passout);
408         } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
409                 EVP_PKEY *pk;
410                 pk = EVP_PKEY_new();
411                 EVP_PKEY_set1_RSA(pk, rsa);
412                 if (outformat == FORMAT_PVK)
413                         i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
414                 else if (pubin || pubout)
415                         i = i2b_PublicKey_bio(out, pk);
416                 else
417                         i = i2b_PrivateKey_bio(out, pk);
418                 EVP_PKEY_free(pk);
419         } else  {
420                 BIO_printf(bio_err,"bad output format specified for outfile\n");
421                 goto end;
422                 }
423         if (!i)
424                 {
425                 BIO_printf(bio_err,"unable to write key\n");
426                 ERR_print_errors(bio_err);
427                 }
428         else
429                 ret=0;
430 end:
431         if(out != NULL) BIO_free_all(out);
432         if(rsa != NULL) RSA_free(rsa);
433         if(passin) OPENSSL_free(passin);
434         if(passout) OPENSSL_free(passout);
435         apps_shutdown();
436         OPENSSL_EXIT(ret);
437         }
438 #else /* !OPENSSL_NO_RSA */
439
440 # if PEDANTIC
441 static void *dummy=&dummy;
442 # endif
443
444 #endif