Fix a bug in x509.c that omitted DSA parameters when they didn't match the
[openssl.git] / apps / x509.c
1 /* apps/x509.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 <string.h>
62 #ifdef NO_STDIO
63 #define APPS_WIN16
64 #endif
65 #include "apps.h"
66 #include <openssl/bio.h>
67 #include <openssl/asn1.h>
68 #include <openssl/err.h>
69 #include <openssl/bn.h>
70 #include <openssl/evp.h>
71 #include <openssl/x509.h>
72 #include <openssl/x509v3.h>
73 #include <openssl/objects.h>
74 #include <openssl/pem.h>
75
76 #undef PROG
77 #define PROG x509_main
78
79 #undef POSTFIX
80 #define POSTFIX ".srl"
81 #define DEF_DAYS        30
82
83 #define CERT_HDR        "certificate"
84
85 static char *x509_usage[]={
86 "usage: x509 args\n",
87 " -inform arg     - input format - default PEM (one of DER, NET or PEM)\n",
88 " -outform arg    - output format - default PEM (one of DER, NET or PEM)\n",
89 " -keyform arg    - private key format - default PEM\n",
90 " -CAform arg     - CA format - default PEM\n",
91 " -CAkeyform arg  - CA key format - default PEM\n",
92 " -in arg         - input file - default stdin\n",
93 " -out arg        - output file - default stdout\n",
94 " -serial         - print serial number value\n",
95 " -hash           - print hash value\n",
96 " -subject        - print subject DN\n",
97 " -issuer         - print issuer DN\n",
98 " -startdate      - notBefore field\n",
99 " -enddate        - notAfter field\n",
100 " -dates          - both Before and After dates\n",
101 " -modulus        - print the RSA key modulus\n",
102 " -fingerprint    - print the certificate fingerprint\n",
103 " -noout          - no certificate output\n",
104
105 " -days arg       - How long till expiry of a signed certificate - def 30 days\n",
106 " -signkey arg    - self sign cert with arg\n",
107 " -x509toreq      - output a certification request object\n",
108 " -req            - input is a certificate request, sign and output.\n",
109 " -CA arg         - set the CA certificate, must be PEM format.\n",
110 " -CAkey arg      - set the CA key, must be PEM format\n",
111 "                   missing, it is asssumed to be in the CA file.\n",
112 " -CAcreateserial - create serial number file if it does not exist\n",
113 " -CAserial       - serial file\n",
114 " -text           - print the certificate in text form\n",
115 " -C              - print out C code forms\n",
116 " -md2/-md5/-sha1/-mdc2 - digest to do an RSA sign with\n",
117 " -extfile        - configuration file with X509V3 extensions to add\n",
118 NULL
119 };
120
121 static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx);
122 static EVP_PKEY *load_key(char *file, int format);
123 static X509 *load_cert(char *file, int format);
124 static int sign (X509 *x, EVP_PKEY *pkey,int days,const EVP_MD *digest,
125                                                 LHASH *conf, char *section);
126 static int x509_certify (X509_STORE *ctx,char *CAfile,const EVP_MD *digest,
127                          X509 *x,X509 *xca,EVP_PKEY *pkey,char *serial,
128                          int create,int days, LHASH *conf, char *section);
129 static int reqfile=0;
130
131 int MAIN(int argc, char **argv)
132         {
133         int ret=1;
134         X509_REQ *req=NULL;
135         X509 *x=NULL,*xca=NULL;
136         EVP_PKEY *Upkey=NULL,*CApkey=NULL;
137         int i,num,badops=0;
138         BIO *out=NULL;
139         BIO *STDout=NULL;
140         int informat,outformat,keyformat,CAformat,CAkeyformat;
141         char *infile=NULL,*outfile=NULL,*keyfile=NULL,*CAfile=NULL;
142         char *CAkeyfile=NULL,*CAserial=NULL;
143         int text=0,serial=0,hash=0,subject=0,issuer=0,startdate=0,enddate=0;
144         int noout=0,sign_flag=0,CA_flag=0,CA_createserial=0;
145         int C=0;
146         int x509req=0,days=DEF_DAYS,modulus=0;
147         char **pp;
148         X509_STORE *ctx=NULL;
149         X509_REQ *rq=NULL;
150         int fingerprint=0;
151         char buf[256];
152         const EVP_MD *md_alg,*digest=EVP_md5();
153         LHASH *extconf = NULL;
154         char *extsect = NULL, *extfile = NULL;
155
156         reqfile=0;
157
158         apps_startup();
159
160         if (bio_err == NULL)
161                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
162         STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
163
164         informat=FORMAT_PEM;
165         outformat=FORMAT_PEM;
166         keyformat=FORMAT_PEM;
167         CAformat=FORMAT_PEM;
168         CAkeyformat=FORMAT_PEM;
169
170         ctx=X509_STORE_new();
171         if (ctx == NULL) goto end;
172         X509_STORE_set_verify_cb_func(ctx,callb);
173
174         argc--;
175         argv++;
176         num=0;
177         while (argc >= 1)
178                 {
179                 if      (strcmp(*argv,"-inform") == 0)
180                         {
181                         if (--argc < 1) goto bad;
182                         informat=str2fmt(*(++argv));
183                         }
184                 else if (strcmp(*argv,"-outform") == 0)
185                         {
186                         if (--argc < 1) goto bad;
187                         outformat=str2fmt(*(++argv));
188                         }
189                 else if (strcmp(*argv,"-keyform") == 0)
190                         {
191                         if (--argc < 1) goto bad;
192                         keyformat=str2fmt(*(++argv));
193                         }
194                 else if (strcmp(*argv,"-req") == 0)
195                         reqfile=1;
196                 else if (strcmp(*argv,"-CAform") == 0)
197                         {
198                         if (--argc < 1) goto bad;
199                         CAformat=str2fmt(*(++argv));
200                         }
201                 else if (strcmp(*argv,"-CAkeyform") == 0)
202                         {
203                         if (--argc < 1) goto bad;
204                         CAformat=str2fmt(*(++argv));
205                         }
206                 else if (strcmp(*argv,"-days") == 0)
207                         {
208                         if (--argc < 1) goto bad;
209                         days=atoi(*(++argv));
210                         if (days == 0)
211                                 {
212                                 BIO_printf(STDout,"bad number of days\n");
213                                 goto bad;
214                                 }
215                         }
216                 else if (strcmp(*argv,"-extfile") == 0)
217                         {
218                         if (--argc < 1) goto bad;
219                         extfile= *(++argv);
220                         }
221                 else if (strcmp(*argv,"-in") == 0)
222                         {
223                         if (--argc < 1) goto bad;
224                         infile= *(++argv);
225                         }
226                 else if (strcmp(*argv,"-out") == 0)
227                         {
228                         if (--argc < 1) goto bad;
229                         outfile= *(++argv);
230                         }
231                 else if (strcmp(*argv,"-signkey") == 0)
232                         {
233                         if (--argc < 1) goto bad;
234                         keyfile= *(++argv);
235                         sign_flag= ++num;
236                         }
237                 else if (strcmp(*argv,"-CA") == 0)
238                         {
239                         if (--argc < 1) goto bad;
240                         CAfile= *(++argv);
241                         CA_flag= ++num;
242                         }
243                 else if (strcmp(*argv,"-CAkey") == 0)
244                         {
245                         if (--argc < 1) goto bad;
246                         CAkeyfile= *(++argv);
247                         }
248                 else if (strcmp(*argv,"-CAserial") == 0)
249                         {
250                         if (--argc < 1) goto bad;
251                         CAserial= *(++argv);
252                         }
253                 else if (strcmp(*argv,"-C") == 0)
254                         C= ++num;
255                 else if (strcmp(*argv,"-serial") == 0)
256                         serial= ++num;
257                 else if (strcmp(*argv,"-modulus") == 0)
258                         modulus= ++num;
259                 else if (strcmp(*argv,"-x509toreq") == 0)
260                         x509req= ++num;
261                 else if (strcmp(*argv,"-text") == 0)
262                         text= ++num;
263                 else if (strcmp(*argv,"-hash") == 0)
264                         hash= ++num;
265                 else if (strcmp(*argv,"-subject") == 0)
266                         subject= ++num;
267                 else if (strcmp(*argv,"-issuer") == 0)
268                         issuer= ++num;
269                 else if (strcmp(*argv,"-fingerprint") == 0)
270                         fingerprint= ++num;
271                 else if (strcmp(*argv,"-dates") == 0)
272                         {
273                         startdate= ++num;
274                         enddate= ++num;
275                         }
276                 else if (strcmp(*argv,"-startdate") == 0)
277                         startdate= ++num;
278                 else if (strcmp(*argv,"-enddate") == 0)
279                         enddate= ++num;
280                 else if (strcmp(*argv,"-noout") == 0)
281                         noout= ++num;
282                 else if (strcmp(*argv,"-CAcreateserial") == 0)
283                         CA_createserial= ++num;
284                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
285                         {
286                         /* ok */
287                         digest=md_alg;
288                         }
289                 else
290                         {
291                         BIO_printf(bio_err,"unknown option %s\n",*argv);
292                         badops=1;
293                         break;
294                         }
295                 argc--;
296                 argv++;
297                 }
298
299         if (badops)
300                 {
301 bad:
302                 for (pp=x509_usage; (*pp != NULL); pp++)
303                         BIO_printf(bio_err,*pp);
304                 goto end;
305                 }
306
307         ERR_load_crypto_strings();
308         X509V3_add_standard_extensions();
309
310         if (!X509_STORE_set_default_paths(ctx))
311                 {
312                 ERR_print_errors(bio_err);
313                 goto end;
314                 }
315
316         if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM))
317                 { CAkeyfile=CAfile; }
318         else if ((CA_flag) && (CAkeyfile == NULL))
319                 {
320                 BIO_printf(bio_err,"need to specify a CAkey if using the CA command\n");
321                 goto end;
322                 }
323
324         if (extfile) {
325                 long errorline;
326                 X509V3_CTX ctx2;
327                 if (!(extconf=CONF_load(NULL,extfile,&errorline))) {
328                         if (errorline <= 0)
329                                 BIO_printf(bio_err,
330                                         "error loading the config file '%s'\n",
331                                                                 extfile);
332                         else
333                                 BIO_printf(bio_err,
334                                        "error on line %ld of config file '%s'\n"
335                                                         ,errorline,extfile);
336                         goto end;
337                 }
338                 if(!(extsect = CONF_get_string(extconf, "default",
339                                          "extensions"))) extsect = "default";
340                 X509V3_set_ctx_test(&ctx2);
341                 X509V3_set_conf_lhash(&ctx2, extconf);
342                 if(!X509V3_EXT_add_conf(extconf, &ctx2, extsect, NULL)) {
343                         BIO_printf(bio_err,
344                                 "Error Loading extension section %s\n",
345                                                                  extsect);
346                         ERR_print_errors(bio_err);
347                         goto end;
348                 }
349         } 
350
351
352         if (reqfile)
353                 {
354                 EVP_PKEY *pkey;
355                 X509_CINF *ci;
356                 BIO *in;
357
358                 if (!sign_flag && !CA_flag)
359                         {
360                         BIO_printf(bio_err,"We need a private key to sign with\n");
361                         goto end;
362                         }
363                 in=BIO_new(BIO_s_file());
364                 if (in == NULL)
365                         {
366                         ERR_print_errors(bio_err);
367                         goto end;
368                         }
369
370                 if (infile == NULL)
371                         BIO_set_fp(in,stdin,BIO_NOCLOSE|BIO_FP_TEXT);
372                 else
373                         {
374                         if (BIO_read_filename(in,infile) <= 0)
375                                 {
376                                 perror(infile);
377                                 goto end;
378                                 }
379                         }
380                 req=PEM_read_bio_X509_REQ(in,NULL,NULL);
381                 BIO_free(in);
382
383                 if (req == NULL) { perror(infile); goto end; }
384
385                 if (    (req->req_info == NULL) ||
386                         (req->req_info->pubkey == NULL) ||
387                         (req->req_info->pubkey->public_key == NULL) ||
388                         (req->req_info->pubkey->public_key->data == NULL))
389                         {
390                         BIO_printf(bio_err,"The certificate request appears to corrupted\n");
391                         BIO_printf(bio_err,"It does not contain a public key\n");
392                         goto end;
393                         }
394                 if ((pkey=X509_REQ_get_pubkey(req)) == NULL)
395                         {
396                         BIO_printf(bio_err,"error unpacking public key\n");
397                         goto end;
398                         }
399                 i=X509_REQ_verify(req,pkey);
400                 EVP_PKEY_free(pkey);
401                 if (i < 0)
402                         {
403                         BIO_printf(bio_err,"Signature verification error\n");
404                         ERR_print_errors(bio_err);
405                         goto end;
406                         }
407                 if (i == 0)
408                         {
409                         BIO_printf(bio_err,"Signature did not match the certificate request\n");
410                         goto end;
411                         }
412                 else
413                         BIO_printf(bio_err,"Signature ok\n");
414                 
415                 X509_NAME_oneline(req->req_info->subject,buf,256);
416                 BIO_printf(bio_err,"subject=%s\n",buf);
417
418                 if ((x=X509_new()) == NULL) goto end;
419                 ci=x->cert_info;
420
421                 if (!ASN1_INTEGER_set(X509_get_serialNumber(x),0)) goto end;
422                 if (!X509_set_issuer_name(x,req->req_info->subject)) goto end;
423                 if (!X509_set_subject_name(x,req->req_info->subject)) goto end;
424
425                 X509_gmtime_adj(X509_get_notBefore(x),0);
426                 X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
427
428 #if 0
429                 X509_PUBKEY_free(ci->key);
430                 ci->key=req->req_info->pubkey;
431                 req->req_info->pubkey=NULL;
432 #else
433                 pkey = X509_REQ_get_pubkey(req);
434                 X509_set_pubkey(x,pkey);
435                 EVP_PKEY_free(pkey);
436 #endif
437                 }
438         else
439                 x=load_cert(infile,informat);
440
441         if (x == NULL) goto end;
442         if (CA_flag)
443                 {
444                 xca=load_cert(CAfile,CAformat);
445                 if (xca == NULL) goto end;
446                 }
447
448         if (!noout || text)
449                 {
450                 OBJ_create("2.99999.3",
451                         "SET.ex3","SET x509v3 extension 3");
452
453                 out=BIO_new(BIO_s_file());
454                 if (out == NULL)
455                         {
456                         ERR_print_errors(bio_err);
457                         goto end;
458                         }
459                 if (outfile == NULL)
460                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
461                 else
462                         {
463                         if (BIO_write_filename(out,outfile) <= 0)
464                                 {
465                                 perror(outfile);
466                                 goto end;
467                                 }
468                         }
469                 }
470
471         if (num)
472                 {
473                 for (i=1; i<=num; i++)
474                         {
475                         if (issuer == i)
476                                 {
477                                 X509_NAME_oneline(X509_get_issuer_name(x),
478                                         buf,256);
479                                 BIO_printf(STDout,"issuer= %s\n",buf);
480                                 }
481                         else if (subject == i) 
482                                 {
483                                 X509_NAME_oneline(X509_get_subject_name(x),
484                                         buf,256);
485                                 BIO_printf(STDout,"subject=%s\n",buf);
486                                 }
487                         else if (serial == i)
488                                 {
489                                 BIO_printf(STDout,"serial=");
490                                 i2a_ASN1_INTEGER(STDout,x->cert_info->serialNumber);
491                                 BIO_printf(STDout,"\n");
492                                 }
493                         else if (hash == i)
494                                 {
495                                 BIO_printf(STDout,"%08lx\n",X509_subject_name_hash(x));
496                                 }
497                         else
498                                 if (modulus == i)
499                                 {
500                                 EVP_PKEY *pkey;
501
502                                 pkey=X509_get_pubkey(x);
503                                 if (pkey == NULL)
504                                         {
505                                         BIO_printf(bio_err,"Modulus=unavailable\n");
506                                         ERR_print_errors(bio_err);
507                                         goto end;
508                                         }
509                                 BIO_printf(STDout,"Modulus=");
510 #ifndef NO_RSA
511                                 if (pkey->type == EVP_PKEY_RSA)
512                                         BN_print(STDout,pkey->pkey.rsa->n);
513                                 else
514 #endif
515 #ifndef NO_DSA
516                                 if (pkey->type == EVP_PKEY_DSA)
517                                         BN_print(STDout,pkey->pkey.dsa->pub_key);
518                                 else
519 #endif
520                                         BIO_printf(STDout,"Wrong Algorithm type");
521                                 BIO_printf(STDout,"\n");
522                                 EVP_PKEY_free(pkey);
523                                 }
524                         else
525                                 if (C == i)
526                                 {
527                                 unsigned char *d;
528                                 char *m;
529                                 int y,z;
530
531                                 X509_NAME_oneline(X509_get_subject_name(x),
532                                         buf,256);
533                                 BIO_printf(STDout,"/* subject:%s */\n",buf);
534                                 m=X509_NAME_oneline(
535                                         X509_get_issuer_name(x),buf,256);
536                                 BIO_printf(STDout,"/* issuer :%s */\n",buf);
537
538                                 z=i2d_X509(x,NULL);
539                                 m=Malloc(z);
540
541                                 d=(unsigned char *)m;
542                                 z=i2d_X509_NAME(X509_get_subject_name(x),&d);
543                                 BIO_printf(STDout,"unsigned char XXX_subject_name[%d]={\n",z);
544                                 d=(unsigned char *)m;
545                                 for (y=0; y<z; y++)
546                                         {
547                                         BIO_printf(STDout,"0x%02X,",d[y]);
548                                         if ((y & 0x0f) == 0x0f) BIO_printf(STDout,"\n");
549                                         }
550                                 if (y%16 != 0) BIO_printf(STDout,"\n");
551                                 BIO_printf(STDout,"};\n");
552
553                                 z=i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x),&d);
554                                 BIO_printf(STDout,"unsigned char XXX_public_key[%d]={\n",z);
555                                 d=(unsigned char *)m;
556                                 for (y=0; y<z; y++)
557                                         {
558                                         BIO_printf(STDout,"0x%02X,",d[y]);
559                                         if ((y & 0x0f) == 0x0f)
560                                                 BIO_printf(STDout,"\n");
561                                         }
562                                 if (y%16 != 0) BIO_printf(STDout,"\n");
563                                 BIO_printf(STDout,"};\n");
564
565                                 z=i2d_X509(x,&d);
566                                 BIO_printf(STDout,"unsigned char XXX_certificate[%d]={\n",z);
567                                 d=(unsigned char *)m;
568                                 for (y=0; y<z; y++)
569                                         {
570                                         BIO_printf(STDout,"0x%02X,",d[y]);
571                                         if ((y & 0x0f) == 0x0f)
572                                                 BIO_printf(STDout,"\n");
573                                         }
574                                 if (y%16 != 0) BIO_printf(STDout,"\n");
575                                 BIO_printf(STDout,"};\n");
576
577                                 Free(m);
578                                 }
579                         else if (text == i)
580                                 {
581                                 X509_print(out,x);
582                                 }
583                         else if (startdate == i)
584                                 {
585                                 BIO_puts(STDout,"notBefore=");
586                                 ASN1_TIME_print(STDout,X509_get_notBefore(x));
587                                 BIO_puts(STDout,"\n");
588                                 }
589                         else if (enddate == i)
590                                 {
591                                 BIO_puts(STDout,"notAfter=");
592                                 ASN1_TIME_print(STDout,X509_get_notAfter(x));
593                                 BIO_puts(STDout,"\n");
594                                 }
595                         else if (fingerprint == i)
596                                 {
597                                 int j;
598                                 unsigned int n;
599                                 unsigned char md[EVP_MAX_MD_SIZE];
600
601                                 if (!X509_digest(x,EVP_md5(),md,&n))
602                                         {
603                                         BIO_printf(bio_err,"out of memory\n");
604                                         goto end;
605                                         }
606                                 BIO_printf(STDout,"MD5 Fingerprint=");
607                                 for (j=0; j<(int)n; j++)
608                                         {
609                                         BIO_printf(STDout,"%02X%c",md[j],
610                                                 (j+1 == (int)n)
611                                                 ?'\n':':');
612                                         }
613                                 }
614
615                         /* should be in the library */
616                         else if ((sign_flag == i) && (x509req == 0))
617                                 {
618                                 BIO_printf(bio_err,"Getting Private key\n");
619                                 if (Upkey == NULL)
620                                         {
621                                         Upkey=load_key(keyfile,keyformat);
622                                         if (Upkey == NULL) goto end;
623                                         }
624 #ifndef NO_DSA
625                                 if (Upkey->type == EVP_PKEY_DSA)
626                                         digest=EVP_dss1();
627 #endif
628
629                                 if (!sign(x,Upkey,days,digest,
630                                                  extconf, extsect)) goto end;
631                                 }
632                         else if (CA_flag == i)
633                                 {
634                                 BIO_printf(bio_err,"Getting CA Private Key\n");
635                                 if (CAkeyfile != NULL)
636                                         {
637                                         CApkey=load_key(CAkeyfile,CAkeyformat);
638                                         if (CApkey == NULL) goto end;
639                                         }
640 #ifndef NO_DSA
641                                 if (CApkey->type == EVP_PKEY_DSA)
642                                         digest=EVP_dss1();
643 #endif
644                                 
645                                 if (!x509_certify(ctx,CAfile,digest,x,xca,
646                                         CApkey, CAserial,CA_createserial,days,
647                                         extconf, extsect))
648                                         goto end;
649                                 }
650                         else if (x509req == i)
651                                 {
652                                 EVP_PKEY *pk;
653
654                                 BIO_printf(bio_err,"Getting request Private Key\n");
655                                 if (keyfile == NULL)
656                                         {
657                                         BIO_printf(bio_err,"no request key file specified\n");
658                                         goto end;
659                                         }
660                                 else
661                                         {
662                                         pk=load_key(keyfile,FORMAT_PEM);
663                                         if (pk == NULL) goto end;
664                                         }
665
666                                 BIO_printf(bio_err,"Generating certificate request\n");
667
668                                 rq=X509_to_X509_REQ(x,pk,EVP_md5());
669                                 EVP_PKEY_free(pk);
670                                 if (rq == NULL)
671                                         {
672                                         ERR_print_errors(bio_err);
673                                         goto end;
674                                         }
675                                 if (!noout)
676                                         {
677                                         X509_REQ_print(out,rq);
678                                         PEM_write_bio_X509_REQ(out,rq);
679                                         }
680                                 noout=1;
681                                 }
682                         }
683                 }
684
685         if (noout)
686                 {
687                 ret=0;
688                 goto end;
689                 }
690
691         if      (outformat == FORMAT_ASN1)
692                 i=i2d_X509_bio(out,x);
693         else if (outformat == FORMAT_PEM)
694                 i=PEM_write_bio_X509(out,x);
695         else if (outformat == FORMAT_NETSCAPE)
696                 {
697                 ASN1_HEADER ah;
698                 ASN1_OCTET_STRING os;
699
700                 os.data=(unsigned char *)CERT_HDR;
701                 os.length=strlen(CERT_HDR);
702                 ah.header= &os;
703                 ah.data=(char *)x;
704                 ah.meth=X509_asn1_meth();
705
706                 /* no macro for this one yet */
707                 i=ASN1_i2d_bio(i2d_ASN1_HEADER,out,(unsigned char *)&ah);
708                 }
709         else    {
710                 BIO_printf(bio_err,"bad output format specified for outfile\n");
711                 goto end;
712                 }
713         if (!i) {
714                 BIO_printf(bio_err,"unable to write certificate\n");
715                 ERR_print_errors(bio_err);
716                 goto end;
717                 }
718         ret=0;
719 end:
720         OBJ_cleanup();
721         CONF_free(extconf);
722         BIO_free(out);
723         BIO_free(STDout);
724         X509_STORE_free(ctx);
725         X509_REQ_free(req);
726         X509_free(x);
727         X509_free(xca);
728         EVP_PKEY_free(Upkey);
729         EVP_PKEY_free(CApkey);
730         X509_REQ_free(rq);
731         X509V3_EXT_cleanup();
732         EXIT(ret);
733         }
734
735 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
736              X509 *x, X509 *xca, EVP_PKEY *pkey, char *serialfile, int create,
737              int days, LHASH *conf, char *section)
738         {
739         int ret=0;
740         BIO *io=NULL;
741         MS_STATIC char buf2[1024];
742         char *buf=NULL,*p;
743         BIGNUM *serial=NULL;
744         ASN1_INTEGER *bs=NULL,bs2;
745         X509_STORE_CTX xsc;
746         EVP_PKEY *upkey;
747
748         upkey = X509_get_pubkey(xca);
749         EVP_PKEY_copy_parameters(upkey,pkey);
750         EVP_PKEY_free(upkey);
751
752         X509_STORE_CTX_init(&xsc,ctx,x,NULL);
753         buf=(char *)Malloc(EVP_PKEY_size(pkey)*2+
754                 ((serialfile == NULL)
755                         ?(strlen(CAfile)+strlen(POSTFIX)+1)
756                         :(strlen(serialfile)))+1);
757         if (buf == NULL) { BIO_printf(bio_err,"out of mem\n"); goto end; }
758         if (serialfile == NULL)
759                 {
760                 strcpy(buf,CAfile);
761                 for (p=buf; *p; p++)
762                         if (*p == '.')
763                                 {
764                                 *p='\0';
765                                 break;
766                                 }
767                 strcat(buf,POSTFIX);
768                 }
769         else
770                 strcpy(buf,serialfile);
771         serial=BN_new();
772         bs=ASN1_INTEGER_new();
773         if ((serial == NULL) || (bs == NULL))
774                 {
775                 ERR_print_errors(bio_err);
776                 goto end;
777                 }
778
779         io=BIO_new(BIO_s_file());
780         if (io == NULL)
781                 {
782                 ERR_print_errors(bio_err);
783                 goto end;
784                 }
785         
786         if (BIO_read_filename(io,buf) <= 0)
787                 {
788                 if (!create)
789                         {
790                         perror(buf);
791                         goto end;
792                         }
793                 else
794                         {
795                         ASN1_INTEGER_set(bs,0);
796                         BN_zero(serial);
797                         }
798                 }
799         else 
800                 {
801                 if (!a2i_ASN1_INTEGER(io,bs,buf2,1024))
802                         {
803                         BIO_printf(bio_err,"unable to load serial number from %s\n",buf);
804                         ERR_print_errors(bio_err);
805                         goto end;
806                         }
807                 else
808                         {
809                         serial=BN_bin2bn(bs->data,bs->length,serial);
810                         if (serial == NULL)
811                                 {
812                                 BIO_printf(bio_err,"error converting bin 2 bn");
813                                 goto end;
814                                 }
815                         }
816                 }
817
818         if (!BN_add_word(serial,1))
819                 { BIO_printf(bio_err,"add_word failure\n"); goto end; }
820         bs2.data=(unsigned char *)buf2;
821         bs2.length=BN_bn2bin(serial,bs2.data);
822
823         if (BIO_write_filename(io,buf) <= 0)
824                 {
825                 BIO_printf(bio_err,"error attempting to write serial number file\n");
826                 perror(buf);
827                 goto end;
828                 }
829         i2a_ASN1_INTEGER(io,&bs2);
830         BIO_puts(io,"\n");
831         BIO_free(io);
832         io=NULL;
833         
834         if (!X509_STORE_add_cert(ctx,x)) goto end;
835
836         /* NOTE: this certificate can/should be self signed, unless it was
837          * a certificate request in which case it is not. */
838         X509_STORE_CTX_set_cert(&xsc,x);
839         if (!reqfile && !X509_verify_cert(&xsc))
840                 goto end;
841
842         if (!X509_check_private_key(xca,pkey))
843                 {
844                 BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
845                 goto end;
846                 }
847
848         if (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;
849         if (!X509_set_serialNumber(x,bs)) goto end;
850
851         if (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)
852                 goto end;
853
854         /* hardwired expired */
855         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
856                 goto end;
857
858         if(conf) {
859                 X509V3_CTX ctx2;
860                 X509_set_version(x,2); /* version 3 certificate */
861                 X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
862                 X509V3_set_conf_lhash(&ctx2, conf);
863                 if(!X509V3_EXT_add_conf(conf, &ctx2, section, x)) goto end;
864         }
865
866         if (!X509_sign(x,pkey,digest)) goto end;
867         ret=1;
868 end:
869         X509_STORE_CTX_cleanup(&xsc);
870         if (!ret)
871                 ERR_print_errors(bio_err);
872         if (buf != NULL) Free(buf);
873         if (bs != NULL) ASN1_INTEGER_free(bs);
874         if (io != NULL) BIO_free(io);
875         if (serial != NULL) BN_free(serial);
876         return(ret);
877         }
878
879 static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx)
880         {
881         char buf[256];
882         int err;
883         X509 *err_cert;
884
885         /* it is ok to use a self signed certificate
886          * This case will catch both the initial ok == 0 and the
887          * final ok == 1 calls to this function */
888         err=X509_STORE_CTX_get_error(ctx);
889         if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
890                 return(1);
891
892         /* BAD we should have gotten an error.  Normally if everything
893          * worked X509_STORE_CTX_get_error(ctx) will still be set to
894          * DEPTH_ZERO_SELF_.... */
895         if (ok)
896                 {
897                 BIO_printf(bio_err,"error with certificate to be certified - should be self signed\n");
898                 return(0);
899                 }
900         else
901                 {
902                 err_cert=X509_STORE_CTX_get_current_cert(ctx);
903                 X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
904                 BIO_printf(bio_err,"%s\n",buf);
905                 BIO_printf(bio_err,"error with certificate - error %d at depth %d\n%s\n",
906                         err,X509_STORE_CTX_get_error_depth(ctx),
907                         X509_verify_cert_error_string(err));
908                 return(1);
909                 }
910         }
911
912 static EVP_PKEY *load_key(char *file, int format)
913         {
914         BIO *key=NULL;
915         EVP_PKEY *pkey=NULL;
916
917         if (file == NULL)
918                 {
919                 BIO_printf(bio_err,"no keyfile specified\n");
920                 goto end;
921                 }
922         key=BIO_new(BIO_s_file());
923         if (key == NULL)
924                 {
925                 ERR_print_errors(bio_err);
926                 goto end;
927                 }
928         if (BIO_read_filename(key,file) <= 0)
929                 {
930                 perror(file);
931                 goto end;
932                 }
933 #ifndef NO_RSA
934         if      (format == FORMAT_ASN1)
935                 {
936                 RSA *rsa;
937
938                 rsa=d2i_RSAPrivateKey_bio(key,NULL);
939                 if (rsa != NULL)
940                         {
941                         if ((pkey=EVP_PKEY_new()) != NULL)
942                                 EVP_PKEY_assign_RSA(pkey,rsa);
943                         else
944                                 RSA_free(rsa);
945                         }
946                 }
947         else
948 #endif
949                 if (format == FORMAT_PEM)
950                 {
951                 pkey=PEM_read_bio_PrivateKey(key,NULL,NULL);
952                 }
953         else
954                 {
955                 BIO_printf(bio_err,"bad input format specified for key\n");
956                 goto end;
957                 }
958 end:
959         if (key != NULL) BIO_free(key);
960         if (pkey == NULL)
961                 BIO_printf(bio_err,"unable to load Private Key\n");
962         return(pkey);
963         }
964
965 static X509 *load_cert(char *file, int format)
966         {
967         ASN1_HEADER *ah=NULL;
968         BUF_MEM *buf=NULL;
969         X509 *x=NULL;
970         BIO *cert;
971
972         if ((cert=BIO_new(BIO_s_file())) == NULL)
973                 {
974                 ERR_print_errors(bio_err);
975                 goto end;
976                 }
977
978         if (file == NULL)
979                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
980         else
981                 {
982                 if (BIO_read_filename(cert,file) <= 0)
983                         {
984                         perror(file);
985                         goto end;
986                         }
987                 }
988         if      (format == FORMAT_ASN1)
989                 x=d2i_X509_bio(cert,NULL);
990         else if (format == FORMAT_NETSCAPE)
991                 {
992                 unsigned char *p,*op;
993                 int size=0,i;
994
995                 /* We sort of have to do it this way because it is sort of nice
996                  * to read the header first and check it, then
997                  * try to read the certificate */
998                 buf=BUF_MEM_new();
999                 for (;;)
1000                         {
1001                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
1002                                 goto end;
1003                         i=BIO_read(cert,&(buf->data[size]),1024*10);
1004                         size+=i;
1005                         if (i == 0) break;
1006                         if (i < 0)
1007                                 {
1008                                 perror("reading certificate");
1009                                 goto end;
1010                                 }
1011                         }
1012                 p=(unsigned char *)buf->data;
1013                 op=p;
1014
1015                 /* First load the header */
1016                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
1017                         goto end;
1018                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
1019                         (strncmp(CERT_HDR,(char *)ah->header->data,
1020                         ah->header->length) != 0))
1021                         {
1022                         BIO_printf(bio_err,"Error reading header on certificate\n");
1023                         goto end;
1024                         }
1025                 /* header is ok, so now read the object */
1026                 p=op;
1027                 ah->meth=X509_asn1_meth();
1028                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
1029                         goto end;
1030                 x=(X509 *)ah->data;
1031                 ah->data=NULL;
1032                 }
1033         else if (format == FORMAT_PEM)
1034                 x=PEM_read_bio_X509(cert,NULL,NULL);
1035         else    {
1036                 BIO_printf(bio_err,"bad input format specified for input cert\n");
1037                 goto end;
1038                 }
1039 end:
1040         if (x == NULL)
1041                 {
1042                 BIO_printf(bio_err,"unable to load certificate\n");
1043                 ERR_print_errors(bio_err);
1044                 }
1045         if (ah != NULL) ASN1_HEADER_free(ah);
1046         if (cert != NULL) BIO_free(cert);
1047         if (buf != NULL) BUF_MEM_free(buf);
1048         return(x);
1049         }
1050
1051 /* self sign */
1052 static int sign(X509 *x, EVP_PKEY *pkey, int days, const EVP_MD *digest, 
1053                                                 LHASH *conf, char *section)
1054         {
1055
1056         EVP_PKEY *pktmp;
1057
1058         pktmp = X509_get_pubkey(x);
1059         EVP_PKEY_copy_parameters(pktmp,pkey);
1060         EVP_PKEY_save_parameters(pktmp,1);
1061         EVP_PKEY_free(pktmp);
1062
1063         if (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;
1064         if (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;
1065
1066         /* Lets just make it 12:00am GMT, Jan 1 1970 */
1067         /* memcpy(x->cert_info->validity->notBefore,"700101120000Z",13); */
1068         /* 28 days to be certified */
1069
1070         if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
1071                 goto err;
1072
1073         if (!X509_set_pubkey(x,pkey)) goto err;
1074         if(conf) {
1075                 X509V3_CTX ctx;
1076                 X509_set_version(x,2); /* version 3 certificate */
1077                 X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
1078                 X509V3_set_conf_lhash(&ctx, conf);
1079                 if(!X509V3_EXT_add_conf(conf, &ctx, section, x)) goto err;
1080         }
1081         if (!X509_sign(x,pkey,digest)) goto err;
1082         return(1);
1083 err:
1084         ERR_print_errors(bio_err);
1085         return(0);
1086         }