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[openssl.git] / apps / req.c
1 /* apps/req.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 <stdio.h>
60 #include <stdlib.h>
61 #include <time.h>
62 #include <string.h>
63 #ifdef NO_STDIO
64 #define APPS_WIN16
65 #endif
66 #include "apps.h"
67 #include "bio.h"
68 #include "evp.h"
69 #include "rand.h"
70 #include "conf.h"
71 #include "err.h"
72 #include "asn1.h"
73 #include "x509.h"
74 #include "objects.h"
75 #include "pem.h"
76
77 #define SECTION         "req"
78
79 #define BITS            "default_bits"
80 #define KEYFILE         "default_keyfile"
81 #define DISTINGUISHED_NAME      "distinguished_name"
82 #define ATTRIBUTES      "attributes"
83
84 #define DEFAULT_KEY_LENGTH      512
85 #define MIN_KEY_LENGTH          384
86
87 #undef PROG
88 #define PROG    req_main
89
90 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
91  * -outform arg - output format - default PEM
92  * -in arg      - input file - default stdin
93  * -out arg     - output file - default stdout
94  * -verify      - check request signature
95  * -noout       - don't print stuff out.
96  * -text        - print out human readable text.
97  * -nodes       - no des encryption
98  * -config file - Load configuration file.
99  * -key file    - make a request using key in file (or use it for verification).
100  * -keyform     - key file format.
101  * -newkey      - make a key and a request.
102  * -modulus     - print RSA modulus.
103  * -x509        - output a self signed X509 structure instead.
104  * -asn1-kludge - output new certificate request in a format that some CA's
105  *                require.  This format is wrong
106  */
107
108 #ifndef NOPROTO
109 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
110 static int add_attribute_object(STACK *n, char *text, char *def, 
111         char *value, int nid,int min,int max);
112 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
113         int nid,int min,int max);
114 static void MS_CALLBACK req_cb(int p,int n,char *arg);
115 static int req_fix_data(int nid,int *type,int len,int min,int max);
116 #else
117 static int make_REQ();
118 static int add_attribute_object();
119 static int add_DN_object();
120 static void MS_CALLBACK req_cb();
121 static int req_fix_data();
122 #endif
123
124 #ifndef MONOLITH
125 static char *default_config_file=NULL;
126 static LHASH *config=NULL;
127 #endif
128 static LHASH *req_conf=NULL;
129
130 #define TYPE_RSA        1
131 #define TYPE_DSA        2
132 #define TYPE_DH         3
133
134 int MAIN(argc, argv)
135 int argc;
136 char **argv;
137         {
138 #ifndef NO_DSA
139         DSA *dsa_params=NULL;
140 #endif
141         int ex=1,x509=0,days=30;
142         X509 *x509ss=NULL;
143         X509_REQ *req=NULL;
144         EVP_PKEY *pkey=NULL;
145         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
146         BIO *in=NULL,*out=NULL;
147         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
148         int nodes=0,kludge=0;
149         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
150         EVP_CIPHER *cipher=NULL;
151         int modulus=0;
152         char *p;
153         EVP_MD *md_alg=NULL,*digest=EVP_md5();
154 #ifndef MONOLITH
155         MS_STATIC char config_name[256];
156 #endif
157
158 #ifndef NO_DES
159         cipher=EVP_des_ede3_cbc();
160 #endif
161         apps_startup();
162
163         if (bio_err == NULL)
164                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
165                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
166
167         infile=NULL;
168         outfile=NULL;
169         informat=FORMAT_PEM;
170         outformat=FORMAT_PEM;
171
172         prog=argv[0];
173         argc--;
174         argv++;
175         while (argc >= 1)
176                 {
177                 if      (strcmp(*argv,"-inform") == 0)
178                         {
179                         if (--argc < 1) goto bad;
180                         informat=str2fmt(*(++argv));
181                         }
182                 else if (strcmp(*argv,"-outform") == 0)
183                         {
184                         if (--argc < 1) goto bad;
185                         outformat=str2fmt(*(++argv));
186                         }
187                 else if (strcmp(*argv,"-key") == 0)
188                         {
189                         if (--argc < 1) goto bad;
190                         keyfile= *(++argv);
191                         }
192                 else if (strcmp(*argv,"-new") == 0)
193                         {
194                         pkey_type=TYPE_RSA;
195                         newreq=1;
196                         }
197                 else if (strcmp(*argv,"-config") == 0)
198                         {       
199                         if (--argc < 1) goto bad;
200                         template= *(++argv);
201                         }
202                 else if (strcmp(*argv,"-keyform") == 0)
203                         {
204                         if (--argc < 1) goto bad;
205                         keyform=str2fmt(*(++argv));
206                         }
207                 else if (strcmp(*argv,"-in") == 0)
208                         {
209                         if (--argc < 1) goto bad;
210                         infile= *(++argv);
211                         }
212                 else if (strcmp(*argv,"-out") == 0)
213                         {
214                         if (--argc < 1) goto bad;
215                         outfile= *(++argv);
216                         }
217                 else if (strcmp(*argv,"-keyout") == 0)
218                         {
219                         if (--argc < 1) goto bad;
220                         keyout= *(++argv);
221                         }
222                 else if (strcmp(*argv,"-newkey") == 0)
223                         {
224                         if (--argc < 1) goto bad;
225                         p= *(++argv);
226                         if ((strncmp("rsa:",p,4) == 0) ||
227                                 ((p[0] >= '0') && (p[0] <= '9')))
228                                 {
229                                 pkey_type=TYPE_RSA;
230                                 p+=4;
231                                 newkey= atoi(p);
232                                 }
233                         else
234 #ifndef NO_DSA
235                                 if (strncmp("dsa:",p,4) == 0)
236                                 {
237                                 X509 *xtmp=NULL;
238                                 EVP_PKEY *dtmp;
239
240                                 pkey_type=TYPE_DSA;
241                                 p+=4;
242                                 if ((in=BIO_new_file(p,"r")) == NULL)
243                                         {
244                                         perror(p);
245                                         goto end;
246                                         }
247                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL)) == NULL)
248                                         {
249                                         ERR_clear_error();
250                                         BIO_reset(in);
251                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL)) == NULL)
252                                                 {
253                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
254                                                 goto end;
255                                                 }
256
257                                         /* This will 'disapear'
258                                          * when we free xtmp */
259                                         dtmp=X509_get_pubkey(xtmp);
260                                         if (dtmp->type == EVP_PKEY_DSA)
261                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
262                                         X509_free(xtmp);
263                                         if (dsa_params == NULL)
264                                                 {
265                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
266                                                 goto end;
267                                                 }
268                                         }
269                                 BIO_free(in);
270                                 newkey=BN_num_bits(dsa_params->p);
271                                 in=NULL;
272                                 }
273                         else 
274 #endif
275 #ifndef NO_DH
276                                 if (strncmp("dh:",p,4) == 0)
277                                 {
278                                 pkey_type=TYPE_DH;
279                                 p+=3;
280                                 }
281                         else
282 #endif
283                                 pkey_type=TYPE_RSA;
284
285                         newreq=1;
286                         }
287                 else if (strcmp(*argv,"-modulus") == 0)
288                         modulus=1;
289                 else if (strcmp(*argv,"-verify") == 0)
290                         verify=1;
291                 else if (strcmp(*argv,"-nodes") == 0)
292                         nodes=1;
293                 else if (strcmp(*argv,"-noout") == 0)
294                         noout=1;
295                 else if (strcmp(*argv,"-text") == 0)
296                         text=1;
297                 else if (strcmp(*argv,"-x509") == 0)
298                         x509=1;
299                 else if (strcmp(*argv,"-asn1-kludge") == 0)
300                         kludge=1;
301                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
302                         kludge=0;
303                 else if (strcmp(*argv,"-days") == 0)
304                         {
305                         if (--argc < 1) goto bad;
306                         days= atoi(*(++argv));
307                         if (days == 0) days=30;
308                         }
309                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
310                         {
311                         /* ok */
312                         digest=md_alg;
313                         }
314                 else
315
316                         {
317                         BIO_printf(bio_err,"unknown option %s\n",*argv);
318                         badops=1;
319                         break;
320                         }
321                 argc--;
322                 argv++;
323                 }
324
325         if (badops)
326                 {
327 bad:
328                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
329                 BIO_printf(bio_err,"where options  are\n");
330                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
331                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
332                 BIO_printf(bio_err," -in arg        inout file\n");
333                 BIO_printf(bio_err," -out arg       output file\n");
334                 BIO_printf(bio_err," -text          text form of request\n");
335                 BIO_printf(bio_err," -noout         do not output REQ\n");
336                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
337                 BIO_printf(bio_err," -modulus       RSA modulus\n");
338                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
339                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
340                 BIO_printf(bio_err," -keyform arg   key file format\n");
341                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
342                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
343                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
344
345                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
346                 BIO_printf(bio_err," -config file   request templace file.\n");
347                 BIO_printf(bio_err," -new           new request.\n");
348                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
349                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
350                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
351                 BIO_printf(bio_err,"                have been reported as requiring\n");
352                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
353                 goto end;
354                 }
355
356         ERR_load_crypto_strings();
357
358 #ifndef MONOLITH
359         /* Lets load up our environment a little */
360         p=getenv("SSLEAY_CONF");
361         if (p == NULL)
362                 {
363                 strcpy(config_name,X509_get_default_cert_area());
364                 strcat(config_name,"/lib/");
365                 strcat(config_name,SSLEAY_CONF);
366                 p=config_name;
367                 }
368         default_config_file=p;
369         config=CONF_load(config,p,NULL);
370 #endif
371
372         if (template != NULL)
373                 {
374                 long errline;
375
376                 BIO_printf(bio_err,"Using configuration from %s\n",template);
377                 req_conf=CONF_load(NULL,template,&errline);
378                 if (req_conf == NULL)
379                         {
380                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
381                         goto end;
382                         }
383                 }
384         else
385                 {
386                 req_conf=config;
387                 BIO_printf(bio_err,"Using configuration from %s\n",
388                         default_config_file);
389                 if (req_conf == NULL)
390                         {
391                         BIO_printf(bio_err,"Unable to load config info\n");
392                         }
393                 }
394
395         if (req_conf != NULL)
396                 {
397                 p=CONF_get_string(req_conf,NULL,"oid_file");
398                 if (p != NULL)
399                         {
400                         BIO *oid_bio;
401
402                         oid_bio=BIO_new_file(p,"r");
403                         if (oid_bio == NULL) 
404                                 {
405                                 /*
406                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
407                                 ERR_print_errors(bio_err);
408                                 */
409                                 }
410                         else
411                                 {
412                                 OBJ_create_objects(oid_bio);
413                                 BIO_free(oid_bio);
414                                 }
415                         }
416                 }
417
418         if ((md_alg == NULL) &&
419                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
420                 {
421                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
422                         digest=md_alg;
423                 }
424
425         in=BIO_new(BIO_s_file());
426         out=BIO_new(BIO_s_file());
427         if ((in == NULL) || (out == NULL))
428                 goto end;
429
430         if (keyfile != NULL)
431                 {
432                 if (BIO_read_filename(in,keyfile) <= 0)
433                         {
434                         perror(keyfile);
435                         goto end;
436                         }
437
438 /*              if (keyform == FORMAT_ASN1)
439                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
440                 else */
441                 if (keyform == FORMAT_PEM)
442                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL);
443                 else
444                         {
445                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
446                         goto end;
447                         }
448
449                 if (pkey == NULL)
450                         {
451                         BIO_printf(bio_err,"unable to load Private key\n");
452                         goto end;
453                         }
454                 }
455
456         if (newreq && (pkey == NULL))
457                 {
458                 char *randfile;
459                 char buffer[200];
460
461                 if ((randfile=CONF_get_string(req_conf,SECTION,"RANDFILE")) == NULL)
462                         randfile=RAND_file_name(buffer,200);
463 #ifdef WINDOWS
464                 BIO_printf(bio_err,"Loading 'screen' into random state -");
465                 BIO_flush(bio_err);
466                 RAND_screen();
467                 BIO_printf(bio_err," done\n");
468 #endif
469                 if ((randfile == NULL) || !RAND_load_file(randfile,1024L*1024L))
470                         {
471                         BIO_printf(bio_err,"unable to load 'random state'\n");
472                         BIO_printf(bio_err,"What this means is that the random number generator has not been seeded\n");
473                         BIO_printf(bio_err,"with much random data.\n");
474                         BIO_printf(bio_err,"Consider setting the RANDFILE environment variable to point at a file that\n");
475                         BIO_printf(bio_err,"'random' data can be kept in.\n");
476                         }
477                 if (newkey <= 0)
478                         {
479                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
480                         if (newkey <= 0)
481                                 newkey=DEFAULT_KEY_LENGTH;
482                         }
483
484                 if (newkey < MIN_KEY_LENGTH)
485                         {
486                         BIO_printf(bio_err,"private key length is too short,\n");
487                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
488                         goto end;
489                         }
490                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
491                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
492
493                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
494
495 #ifndef NO_RSA
496                 if (pkey_type == TYPE_RSA)
497                         {
498                         if (!EVP_PKEY_assign_RSA(pkey,
499                                 RSA_generate_key(newkey,0x10001,
500                                         req_cb,(char *)bio_err)))
501                                 goto end;
502                         }
503                 else
504 #endif
505 #ifndef NO_DSA
506                         if (pkey_type == TYPE_DSA)
507                         {
508                         if (!DSA_generate_key(dsa_params)) goto end;
509                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
510                         dsa_params=NULL;
511                         }
512 #endif
513
514                 if ((randfile == NULL) || (RAND_write_file(randfile) == 0))
515                         BIO_printf(bio_err,"unable to write 'random state'\n");
516
517                 if (pkey == NULL) goto end;
518
519                 if (keyout == NULL)
520                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
521
522                 if (keyout == NULL)
523                         {
524                         BIO_printf(bio_err,"writing new private key to stdout\n");
525                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
526                         }
527                 else
528                         {
529                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
530                         if (BIO_write_filename(out,keyout) <= 0)
531                                 {
532                                 perror(keyout);
533                                 goto end;
534                                 }
535                         }
536
537                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
538                 if (p == NULL)
539                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
540                 if ((p != NULL) && (strcmp(p,"no") == 0))
541                         cipher=NULL;
542                 if (nodes) cipher=NULL;
543                 
544                 i=0;
545 loop:
546                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
547                         NULL,0,NULL))
548                         {
549                         if ((ERR_GET_REASON(ERR_peek_error()) ==
550                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
551                                 {
552                                 ERR_clear_error();
553                                 i++;
554                                 goto loop;
555                                 }
556                         goto end;
557                         }
558                 BIO_printf(bio_err,"-----\n");
559                 }
560
561         if (!newreq)
562                 {
563                 /* Since we are using a pre-existing certificate
564                  * request, the kludge 'format' info should not be
565                  * changed. */
566                 kludge= -1;
567                 if (infile == NULL)
568                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
569                 else
570                         {
571                         if (BIO_read_filename(in,infile) <= 0)
572                                 {
573                                 perror(infile);
574                                 goto end;
575                                 }
576                         }
577
578                 if      (informat == FORMAT_ASN1)
579                         req=d2i_X509_REQ_bio(in,NULL);
580                 else if (informat == FORMAT_PEM)
581                         req=PEM_read_bio_X509_REQ(in,NULL,NULL);
582                 else
583                         {
584                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
585                         goto end;
586                         }
587                 if (req == NULL)
588                         {
589                         BIO_printf(bio_err,"unable to load X509 request\n");
590                         goto end;
591                         }
592                 }
593
594         if (newreq || x509)
595                 {
596 #ifndef NO_DSA
597                 if (pkey->type == EVP_PKEY_DSA)
598                         digest=EVP_dss1();
599 #endif
600
601                 if (pkey == NULL)
602                         {
603                         BIO_printf(bio_err,"you need to specify a private key\n");
604                         goto end;
605                         }
606                 if (req == NULL)
607                         {
608                         req=X509_REQ_new();
609                         if (req == NULL)
610                                 {
611                                 goto end;
612                                 }
613
614                         i=make_REQ(req,pkey,!x509);
615                         if (kludge >= 0)
616                                 req->req_info->req_kludge=kludge;
617                         if (!i)
618                                 {
619                                 BIO_printf(bio_err,"problems making Certificate Request\n");
620                                 goto end;
621                                 }
622                         }
623                 if (x509)
624                         {
625                         if ((x509ss=X509_new()) == NULL) goto end;
626
627                         /* don't set the version number, for starters
628                          * the field is null and second, null is v0 
629                          * if (!ASN1_INTEGER_set(ci->version,0L)) goto end;
630                          */
631                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
632
633                         X509_set_issuer_name(x509ss,
634                                 X509_REQ_get_subject_name(req));
635                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
636                         X509_gmtime_adj(X509_get_notAfter(x509ss),
637                                 (long)60*60*24*days);
638                         X509_set_subject_name(x509ss,
639                                 X509_REQ_get_subject_name(req));
640                         X509_set_pubkey(x509ss,X509_REQ_get_pubkey(req));
641
642                         if (!(i=X509_sign(x509ss,pkey,digest)))
643                                 goto end;
644                         }
645                 else
646                         {
647                         if (!(i=X509_REQ_sign(req,pkey,digest)))
648                                 goto end;
649                         }
650                 }
651
652         if (verify && !x509)
653                 {
654                 int tmp=0;
655
656                 if (pkey == NULL)
657                         {
658                         pkey=X509_REQ_get_pubkey(req);
659                         tmp=1;
660                         if (pkey == NULL) goto end;
661                         }
662
663                 i=X509_REQ_verify(req,pkey);
664                 if (tmp) pkey=NULL;
665
666                 if (i < 0)
667                         {
668                         goto end;
669                         }
670                 else if (i == 0)
671                         {
672                         BIO_printf(bio_err,"verify failure\n");
673                         }
674                 else /* if (i > 0) */
675                         BIO_printf(bio_err,"verify OK\n");
676                 }
677
678         if (noout && !text && !modulus)
679                 {
680                 ex=0;
681                 goto end;
682                 }
683
684         if (outfile == NULL)
685                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
686         else
687                 {
688                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
689                         i=(int)BIO_append_filename(out,outfile);
690                 else
691                         i=(int)BIO_write_filename(out,outfile);
692                 if (!i)
693                         {
694                         perror(outfile);
695                         goto end;
696                         }
697                 }
698
699         if (text)
700                 {
701                 if (x509)
702                         X509_print(out,x509ss);
703                 else    
704                         X509_REQ_print(out,req);
705                 }
706
707         if (modulus)
708                 {
709                 EVP_PKEY *pubkey;
710
711                 if (x509)
712                         pubkey=X509_get_pubkey(x509ss);
713                 else
714                         pubkey=X509_REQ_get_pubkey(req);
715                 if (pubkey == NULL)
716                         {
717                         fprintf(stdout,"Modulus=unavailable\n");
718                         goto end; 
719                         }
720                 fprintf(stdout,"Modulus=");
721                 if (pubkey->type == EVP_PKEY_RSA)
722                         BN_print(out,pubkey->pkey.rsa->n);
723                 else
724                         fprintf(stdout,"Wrong Algorithm type");
725                 fprintf(stdout,"\n");
726                 }
727
728         if (!noout && !x509)
729                 {
730                 if      (outformat == FORMAT_ASN1)
731                         i=i2d_X509_REQ_bio(out,req);
732                 else if (outformat == FORMAT_PEM)
733                         i=PEM_write_bio_X509_REQ(out,req);
734                 else    {
735                         BIO_printf(bio_err,"bad output format specified for outfile\n");
736                         goto end;
737                         }
738                 if (!i)
739                         {
740                         BIO_printf(bio_err,"unable to write X509 request\n");
741                         goto end;
742                         }
743                 }
744         if (!noout && x509 && (x509ss != NULL))
745                 {
746                 if      (outformat == FORMAT_ASN1)
747                         i=i2d_X509_bio(out,x509ss);
748                 else if (outformat == FORMAT_PEM)
749                         i=PEM_write_bio_X509(out,x509ss);
750                 else    {
751                         BIO_printf(bio_err,"bad output format specified for outfile\n");
752                         goto end;
753                         }
754                 if (!i)
755                         {
756                         BIO_printf(bio_err,"unable to write X509 certificate\n");
757                         goto end;
758                         }
759                 }
760         ex=0;
761 end:
762         if (ex)
763                 {
764                 ERR_print_errors(bio_err);
765                 }
766         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
767         if (in != NULL) BIO_free(in);
768         if (out != NULL) BIO_free(out);
769         if (pkey != NULL) EVP_PKEY_free(pkey);
770         if (req != NULL) X509_REQ_free(req);
771         if (x509ss != NULL) X509_free(x509ss);
772 #ifndef NO_DSA
773         if (dsa_params != NULL) DSA_free(dsa_params);
774 #endif
775         EXIT(ex);
776         }
777
778 static int make_REQ(req,pkey,attribs)
779 X509_REQ *req;
780 EVP_PKEY *pkey;
781 int attribs;
782         {
783         int ret=0,i,j;
784         unsigned char *p,*q;
785         X509_REQ_INFO *ri;
786         char buf[100];
787         int nid,min,max;
788         char *type,*def,*tmp,*value,*tmp_attr;
789         STACK *sk,*attr=NULL;
790         CONF_VALUE *v;
791         
792         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
793         if (tmp == NULL)
794                 {
795                 BIO_printf(bio_err,"unable to find '%s' in config\n",
796                         DISTINGUISHED_NAME);
797                 goto err;
798                 }
799         sk=CONF_get_section(req_conf,tmp);
800         if (sk == NULL)
801                 {
802                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
803                 goto err;
804                 }
805
806         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
807         if (tmp_attr == NULL)
808                 attr=NULL;
809         else
810                 {
811                 attr=CONF_get_section(req_conf,tmp_attr);
812                 if (attr == NULL)
813                         {
814                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
815                         goto err;
816                         }
817                 }
818
819         ri=req->req_info;
820
821         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
822         BIO_printf(bio_err,"into your certificate request.\n");
823         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
824         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
825         BIO_printf(bio_err,"For some fields there will be a default value,\n");
826         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
827         BIO_printf(bio_err,"-----\n");
828
829         /* setup version number */
830         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
831
832         if (sk_num(sk))
833                 {
834                 i= -1;
835 start:          for (;;)
836                         {
837                         i++;
838                         if ((int)sk_num(sk) <= i) break;
839
840                         v=(CONF_VALUE *)sk_value(sk,i);
841                         p=q=NULL;
842                         type=v->name;
843                         /* Allow for raw OIDs */
844                         /* [n.mm.ooo.ppp] */
845                         for (j=0; type[j] != '\0'; j++)
846                                 {
847                                 if (    (type[j] == ':') ||
848                                         (type[j] == ',') ||
849                                         (type[j] == '.'))
850                                         p=(unsigned char *)&(type[j+1]);
851                                 if (type[j] == '[')
852                                         {
853                                         p=(unsigned char *)&(type[j+1]);
854                                         for (j++; type[j] != '\0'; j++)
855                                                 if (type[j] == ']')
856                                                         {
857                                                         q=(unsigned char *)&(type[j]);
858                                                         break;
859                                                         }
860                                         break;
861                                         }
862                                 }
863                         if (p != NULL)
864                                 type=(char *)p;
865                         if ((nid=OBJ_txt2nid(type)) == NID_undef)
866                                 {
867                                 /* Add a new one if possible */
868                                 if ((p != NULL) && (q != NULL) && (*q == ']'))
869                                         {
870                                         *q='\0';
871                                         nid=OBJ_create((char *)p,NULL,NULL);
872                                         *q=']';
873                                         if (nid == NID_undef) goto start;
874                                         }
875                                 else
876                                         goto start;
877                                 }
878
879                         sprintf(buf,"%s_default",v->name);
880                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
881                                 def="";
882                                 
883                         sprintf(buf,"%s_value",v->name);
884                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
885                                 value=NULL;
886
887                         sprintf(buf,"%s_min",v->name);
888                         min=(int)CONF_get_number(req_conf,tmp,buf);
889
890                         sprintf(buf,"%s_max",v->name);
891                         max=(int)CONF_get_number(req_conf,tmp,buf);
892
893                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
894                                 min,max))
895                                 goto err;
896                         }
897                 if (sk_num(ri->subject->entries) == 0)
898                         {
899                         BIO_printf(bio_err,"error, no objects specified in config file\n");
900                         goto err;
901                         }
902
903                 if (attribs)
904                         {
905                         if ((attr != NULL) && (sk_num(attr) > 0))
906                                 {
907                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
908                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
909                                 }
910
911                         i= -1;
912 start2:                 for (;;)
913                                 {
914                                 i++;
915                                 if ((attr == NULL) || ((int)sk_num(attr) <= i))
916                                         break;
917
918                                 v=(CONF_VALUE *)sk_value(attr,i);
919                                 type=v->name;
920                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
921                                         goto start2;
922
923                                 sprintf(buf,"%s_default",type);
924                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
925                                         == NULL)
926                                         def="";
927                                 
928                                 sprintf(buf,"%s_value",type);
929                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
930                                         == NULL)
931                                         value=NULL;
932
933                                 sprintf(buf,"%s_min",type);
934                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
935
936                                 sprintf(buf,"%s_max",type);
937                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
938
939                                 if (!add_attribute_object(ri->attributes,
940                                         v->value,def,value,nid,min,max))
941                                         goto err;
942                                 }
943                         }
944                 }
945         else
946                 {
947                 BIO_printf(bio_err,"No template, please set one up.\n");
948                 goto err;
949                 }
950
951         X509_REQ_set_pubkey(req,pkey);
952
953         ret=1;
954 err:
955         return(ret);
956         }
957
958 static int add_DN_object(n,text,def,value,nid,min,max)
959 X509_NAME *n;
960 char *text;
961 char *def;
962 char *value;
963 int nid;
964 int min;
965 int max;
966         {
967         int i,j,ret=0;
968         X509_NAME_ENTRY *ne=NULL;
969         MS_STATIC char buf[1024];
970
971         BIO_printf(bio_err,"%s [%s]:",text,def);
972         BIO_flush(bio_err);
973         if (value != NULL)
974                 {
975                 strcpy(buf,value);
976                 strcat(buf,"\n");
977                 BIO_printf(bio_err,"%s\n",value);
978                 }
979         else
980                 {
981                 buf[0]='\0';
982                 fgets(buf,1024,stdin);
983                 }
984
985         if (buf[0] == '\0') return(0);
986         else if (buf[0] == '\n')
987                 {
988                 if ((def == NULL) || (def[0] == '\0'))
989                         return(1);
990                 strcpy(buf,def);
991                 strcat(buf,"\n");
992                 }
993         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
994
995         i=strlen(buf);
996         if (buf[i-1] != '\n')
997                 {
998                 BIO_printf(bio_err,"weird input :-(\n");
999                 return(0);
1000                 }
1001         buf[--i]='\0';
1002
1003         j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1004         if (req_fix_data(nid,&j,i,min,max) == 0)
1005                 goto err;
1006         if ((ne=X509_NAME_ENTRY_create_by_NID(NULL,nid,j,(unsigned char *)buf,
1007                 strlen(buf)))
1008                 == NULL) goto err;
1009         if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
1010                 goto err;
1011
1012         ret=1;
1013 err:
1014         if (ne != NULL) X509_NAME_ENTRY_free(ne);
1015         return(ret);
1016         }
1017
1018 static int add_attribute_object(n,text,def,value,nid,min,max)
1019 STACK *n;
1020 char *text;
1021 char *def;
1022 char *value;
1023 int nid;
1024 int min;
1025 int max;
1026         {
1027         int i,z;
1028         X509_ATTRIBUTE *xa=NULL;
1029         static char buf[1024];
1030         ASN1_BIT_STRING *bs=NULL;
1031         ASN1_TYPE *at=NULL;
1032
1033 start:
1034         BIO_printf(bio_err,"%s [%s]:",text,def);
1035         BIO_flush(bio_err);
1036         if (value != NULL)
1037                 {
1038                 strcpy(buf,value);
1039                 strcat(buf,"\n");
1040                 BIO_printf(bio_err,"%s\n",value);
1041                 }
1042         else
1043                 {
1044                 buf[0]='\0';
1045                 fgets(buf,1024,stdin);
1046                 }
1047
1048         if (buf[0] == '\0') return(0);
1049         else if (buf[0] == '\n')
1050                 {
1051                 if ((def == NULL) || (def[0] == '\0'))
1052                         return(1);
1053                 strcpy(buf,def);
1054                 strcat(buf,"\n");
1055                 }
1056         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1057
1058         i=strlen(buf);
1059         if (buf[i-1] != '\n')
1060                 {
1061                 BIO_printf(bio_err,"weird input :-(\n");
1062                 return(0);
1063                 }
1064         buf[--i]='\0';
1065
1066         /* add object plus value */
1067         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1068                 goto err;
1069         if ((xa->value.set=sk_new_null()) == NULL)
1070                 goto err;
1071         xa->set=1;
1072
1073         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1074         xa->object=OBJ_nid2obj(nid);
1075
1076         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1077
1078         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1079
1080         z=req_fix_data(nid,&bs->type,i,min,max);
1081         if (z == 0)
1082                 {
1083                 if (value == NULL)
1084                         goto start;
1085                 else    goto err;
1086                 }
1087
1088         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i+1))
1089                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1090
1091         if ((at=ASN1_TYPE_new()) == NULL)
1092                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1093
1094         ASN1_TYPE_set(at,bs->type,(char *)bs);
1095         sk_push(xa->value.set,(char *)at);
1096         bs=NULL;
1097         at=NULL;
1098         /* only one item per attribute */
1099
1100         if (!sk_push(n,(char *)xa)) goto err;
1101         return(1);
1102 err:
1103         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1104         if (at != NULL) ASN1_TYPE_free(at);
1105         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1106         return(0);
1107         }
1108
1109 static void MS_CALLBACK req_cb(p,n,arg)
1110 int p;
1111 int n;
1112 char *arg;
1113         {
1114         char c='*';
1115
1116         if (p == 0) c='.';
1117         if (p == 1) c='+';
1118         if (p == 2) c='*';
1119         if (p == 3) c='\n';
1120         BIO_write((BIO *)arg,&c,1);
1121         BIO_flush((BIO *)arg);
1122 #ifdef LINT
1123         p=n;
1124 #endif
1125         }
1126
1127 static int req_fix_data(nid,type,len,min,max)
1128 int nid;
1129 int *type;
1130 int len,min,max;
1131         {
1132         if (nid == NID_pkcs9_emailAddress)
1133                 *type=V_ASN1_IA5STRING;
1134         if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1135                 *type=V_ASN1_T61STRING;
1136         if ((nid == NID_pkcs9_challengePassword) &&
1137                 (*type == V_ASN1_IA5STRING))
1138                 *type=V_ASN1_T61STRING;
1139
1140         if ((nid == NID_pkcs9_unstructuredName) &&
1141                 (*type == V_ASN1_T61STRING))
1142                 {
1143                 BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1144                 return(0);
1145                 }
1146         if (nid == NID_pkcs9_unstructuredName)
1147                 *type=V_ASN1_IA5STRING;
1148
1149         if (len < min)
1150                 {
1151                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1152                 return(0);
1153                 }
1154         if ((max != 0) && (len > max))
1155                 {
1156                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1157                 return(0);
1158                 }
1159         return(1);
1160         }