Add algorithm specific signature printing. An individual ASN1 method can
[openssl.git] / crypto / asn1 / t_x509.c
1 /* crypto/asn1/t_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 "cryptlib.h"
61 #include <openssl/buffer.h>
62 #include <openssl/bn.h>
63 #ifndef OPENSSL_NO_RSA
64 #include <openssl/rsa.h>
65 #endif
66 #ifndef OPENSSL_NO_DSA
67 #include <openssl/dsa.h>
68 #endif
69 #ifndef OPENSSL_NO_EC
70 #include <openssl/ec.h>
71 #endif
72 #include <openssl/objects.h>
73 #include <openssl/x509.h>
74 #include <openssl/x509v3.h>
75 #include "asn1_locl.h"
76
77 #ifndef OPENSSL_NO_FP_API
78 int X509_print_fp(FILE *fp, X509 *x)
79         {
80         return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
81         }
82
83 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
84         {
85         BIO *b;
86         int ret;
87
88         if ((b=BIO_new(BIO_s_file())) == NULL)
89                 {
90                 X509err(X509_F_X509_PRINT_EX_FP,ERR_R_BUF_LIB);
91                 return(0);
92                 }
93         BIO_set_fp(b,fp,BIO_NOCLOSE);
94         ret=X509_print_ex(b, x, nmflag, cflag);
95         BIO_free(b);
96         return(ret);
97         }
98 #endif
99
100 int X509_print(BIO *bp, X509 *x)
101 {
102         return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
103 }
104
105 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
106         {
107         long l;
108         int ret=0,i;
109         char *m=NULL,mlch = ' ';
110         int nmindent = 0;
111         X509_CINF *ci;
112         ASN1_INTEGER *bs;
113         EVP_PKEY *pkey=NULL;
114         const char *neg;
115
116         if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
117                         mlch = '\n';
118                         nmindent = 12;
119         }
120
121         if(nmflags == X509_FLAG_COMPAT)
122                 nmindent = 16;
123
124         ci=x->cert_info;
125         if(!(cflag & X509_FLAG_NO_HEADER))
126                 {
127                 if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
128                 if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
129                 }
130         if(!(cflag & X509_FLAG_NO_VERSION))
131                 {
132                 l=X509_get_version(x);
133                 if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
134                 }
135         if(!(cflag & X509_FLAG_NO_SERIAL))
136                 {
137
138                 if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
139
140                 bs=X509_get_serialNumber(x);
141                 if (bs->length <= 4)
142                         {
143                         l=ASN1_INTEGER_get(bs);
144                         if (l < 0)
145                                 {
146                                 l= -l;
147                                 neg="-";
148                                 }
149                         else
150                                 neg="";
151                         if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
152                                 goto err;
153                         }
154                 else
155                         {
156                         neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
157                         if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
158
159                         for (i=0; i<bs->length; i++)
160                                 {
161                                 if (BIO_printf(bp,"%02x%c",bs->data[i],
162                                         ((i+1 == bs->length)?'\n':':')) <= 0)
163                                         goto err;
164                                 }
165                         }
166
167                 }
168
169         if(!(cflag & X509_FLAG_NO_SIGNAME))
170                 {
171                 if (BIO_printf(bp,"%8sSignature Algorithm: ","") <= 0) 
172                         goto err;
173                 if (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0)
174                         goto err;
175                 if (BIO_puts(bp, "\n") <= 0)
176                         goto err;
177                 }
178
179         if(!(cflag & X509_FLAG_NO_ISSUER))
180                 {
181                 if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;
182                 if (X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags) < 0) goto err;
183                 if (BIO_write(bp,"\n",1) <= 0) goto err;
184                 }
185         if(!(cflag & X509_FLAG_NO_VALIDITY))
186                 {
187                 if (BIO_write(bp,"        Validity\n",17) <= 0) goto err;
188                 if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
189                 if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
190                 if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
191                 if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
192                 if (BIO_write(bp,"\n",1) <= 0) goto err;
193                 }
194         if(!(cflag & X509_FLAG_NO_SUBJECT))
195                 {
196                 if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;
197                 if (X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags) < 0) goto err;
198                 if (BIO_write(bp,"\n",1) <= 0) goto err;
199                 }
200         if(!(cflag & X509_FLAG_NO_PUBKEY))
201                 {
202                 if (BIO_write(bp,"        Subject Public Key Info:\n",33) <= 0)
203                         goto err;
204                 if (BIO_printf(bp,"%12sPublic Key Algorithm: ","") <= 0)
205                         goto err;
206                 if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
207                         goto err;
208                 if (BIO_puts(bp, "\n") <= 0)
209                         goto err;
210
211                 pkey=X509_get_pubkey(x);
212                 if (pkey == NULL)
213                         {
214                         BIO_printf(bp,"%12sUnable to load Public Key\n","");
215                         ERR_print_errors(bp);
216                         }
217                 else
218                         {
219                         EVP_PKEY_print_public(bp, pkey, 16, NULL);
220                         EVP_PKEY_free(pkey);
221                         }
222                 }
223
224         if (!(cflag & X509_FLAG_NO_EXTENSIONS))
225                 X509V3_extensions_print(bp, "X509v3 extensions",
226                                         ci->extensions, cflag, 8);
227
228         if(!(cflag & X509_FLAG_NO_SIGDUMP))
229                 {
230                 if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;
231                 }
232         if(!(cflag & X509_FLAG_NO_AUX))
233                 {
234                 if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
235                 }
236         ret=1;
237 err:
238         if (m != NULL) OPENSSL_free(m);
239         return(ret);
240         }
241
242 int X509_ocspid_print (BIO *bp, X509 *x)
243         {
244         unsigned char *der=NULL ;
245         unsigned char *dertmp;
246         int derlen;
247         int i;
248         unsigned char SHA1md[SHA_DIGEST_LENGTH];
249
250         /* display the hash of the subject as it would appear
251            in OCSP requests */
252         if (BIO_printf(bp,"        Subject OCSP hash: ") <= 0)
253                 goto err;
254         derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
255         if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)
256                 goto err;
257         i2d_X509_NAME(x->cert_info->subject, &dertmp);
258
259         if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
260                 goto err;
261         for (i=0; i < SHA_DIGEST_LENGTH; i++)
262                 {
263                 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;
264                 }
265         OPENSSL_free (der);
266         der=NULL;
267
268         /* display the hash of the public key as it would appear
269            in OCSP requests */
270         if (BIO_printf(bp,"\n        Public key OCSP hash: ") <= 0)
271                 goto err;
272
273         if (!EVP_Digest(x->cert_info->key->public_key->data,
274                         x->cert_info->key->public_key->length,
275                         SHA1md, NULL, EVP_sha1(), NULL))
276                 goto err;
277         for (i=0; i < SHA_DIGEST_LENGTH; i++)
278                 {
279                 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)
280                         goto err;
281                 }
282         BIO_printf(bp,"\n");
283
284         return (1);
285 err:
286         if (der != NULL) OPENSSL_free(der);
287         return(0);
288         }
289
290 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
291 {
292         const unsigned char *s;
293         int i, n;
294
295         n=sig->length;
296         s=sig->data;
297         for (i=0; i<n; i++)
298                 {
299                 if ((i%18) == 0)
300                         if (BIO_write(bp,"\n",1) <= 0) return 0;
301                         if (BIO_indent(bp, indent, indent) <= 0) return 0;
302                         if (BIO_printf(bp,"%02x%s",s[i],
303                                 ((i+1) == n)?"":":") <= 0) return 0;
304                 }
305         if (BIO_write(bp,"\n",1) != 1) return 0;
306
307         return 1;
308 }
309
310 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
311 {
312         int sig_nid;
313         if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;
314         if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
315
316         sig_nid = OBJ_obj2nid(sigalg->algorithm);
317         if (sig_nid != NID_undef)
318                 {
319                 int pkey_nid, dig_nid;
320                 const EVP_PKEY_ASN1_METHOD *ameth;
321                 if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid))
322                         {
323                         ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
324                         if (ameth && ameth->sig_print)
325                                 return ameth->sig_print(bp, sigalg, sig, 9, 0);
326                         }
327                 }
328
329         return X509_signature_dump(bp, sig, 9);
330 }
331
332 int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
333         {
334         int i,n;
335         char buf[80];
336         const char *p;
337
338         if (v == NULL) return(0);
339         n=0;
340         p=(const char *)v->data;
341         for (i=0; i<v->length; i++)
342                 {
343                 if ((p[i] > '~') || ((p[i] < ' ') &&
344                         (p[i] != '\n') && (p[i] != '\r')))
345                         buf[n]='.';
346                 else
347                         buf[n]=p[i];
348                 n++;
349                 if (n >= 80)
350                         {
351                         if (BIO_write(bp,buf,n) <= 0)
352                                 return(0);
353                         n=0;
354                         }
355                 }
356         if (n > 0)
357                 if (BIO_write(bp,buf,n) <= 0)
358                         return(0);
359         return(1);
360         }
361
362 int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)
363 {
364         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
365         if(tm->type == V_ASN1_GENERALIZEDTIME)
366                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
367         BIO_write(bp,"Bad time value",14);
368         return(0);
369 }
370
371 static const char *mon[12]=
372     {
373     "Jan","Feb","Mar","Apr","May","Jun",
374     "Jul","Aug","Sep","Oct","Nov","Dec"
375     };
376
377 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
378         {
379         char *v;
380         int gmt=0;
381         int i;
382         int y=0,M=0,d=0,h=0,m=0,s=0;
383         char *f = NULL;
384         int f_len = 0;
385
386         i=tm->length;
387         v=(char *)tm->data;
388
389         if (i < 12) goto err;
390         if (v[i-1] == 'Z') gmt=1;
391         for (i=0; i<12; i++)
392                 if ((v[i] > '9') || (v[i] < '0')) goto err;
393         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
394         M= (v[4]-'0')*10+(v[5]-'0');
395         if ((M > 12) || (M < 1)) goto err;
396         d= (v[6]-'0')*10+(v[7]-'0');
397         h= (v[8]-'0')*10+(v[9]-'0');
398         m=  (v[10]-'0')*10+(v[11]-'0');
399         if (tm->length >= 14 &&
400             (v[12] >= '0') && (v[12] <= '9') &&
401             (v[13] >= '0') && (v[13] <= '9'))
402                 {
403                 s=  (v[12]-'0')*10+(v[13]-'0');
404                 /* Check for fractions of seconds. */
405                 if (tm->length >= 15 && v[14] == '.')
406                         {
407                         int l = tm->length;
408                         f = &v[14];     /* The decimal point. */
409                         f_len = 1;
410                         while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
411                                 ++f_len;
412                         }
413                 }
414
415         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d%.*s %d%s",
416                 mon[M-1],d,h,m,s,f_len,f,y,(gmt)?" GMT":"") <= 0)
417                 return(0);
418         else
419                 return(1);
420 err:
421         BIO_write(bp,"Bad time value",14);
422         return(0);
423         }
424
425 int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm)
426         {
427         const char *v;
428         int gmt=0;
429         int i;
430         int y=0,M=0,d=0,h=0,m=0,s=0;
431
432         i=tm->length;
433         v=(const char *)tm->data;
434
435         if (i < 10) goto err;
436         if (v[i-1] == 'Z') gmt=1;
437         for (i=0; i<10; i++)
438                 if ((v[i] > '9') || (v[i] < '0')) goto err;
439         y= (v[0]-'0')*10+(v[1]-'0');
440         if (y < 50) y+=100;
441         M= (v[2]-'0')*10+(v[3]-'0');
442         if ((M > 12) || (M < 1)) goto err;
443         d= (v[4]-'0')*10+(v[5]-'0');
444         h= (v[6]-'0')*10+(v[7]-'0');
445         m=  (v[8]-'0')*10+(v[9]-'0');
446         if (tm->length >=12 &&
447             (v[10] >= '0') && (v[10] <= '9') &&
448             (v[11] >= '0') && (v[11] <= '9'))
449                 s=  (v[10]-'0')*10+(v[11]-'0');
450
451         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
452                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
453                 return(0);
454         else
455                 return(1);
456 err:
457         BIO_write(bp,"Bad time value",14);
458         return(0);
459         }
460
461 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
462         {
463         char *s,*c,*b;
464         int ret=0,l,i;
465
466         l=80-2-obase;
467
468         b=X509_NAME_oneline(name,NULL,0);
469         if (!*b)
470                 {
471                 OPENSSL_free(b);
472                 return 1;
473                 }
474         s=b+1; /* skip the first slash */
475
476         c=s;
477         for (;;)
478                 {
479 #ifndef CHARSET_EBCDIC
480                 if (    ((*s == '/') &&
481                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
482                                         (s[2] == '=') ||
483                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
484                                         (s[3] == '='))
485                                  ))) ||
486                         (*s == '\0'))
487 #else
488                 if (    ((*s == '/') &&
489                                 (isupper(s[1]) && (
490                                         (s[2] == '=') ||
491                                         (isupper(s[2]) &&
492                                         (s[3] == '='))
493                                  ))) ||
494                         (*s == '\0'))
495 #endif
496                         {
497                         i=s-c;
498                         if (BIO_write(bp,c,i) != i) goto err;
499                         c=s+1;  /* skip following slash */
500                         if (*s != '\0')
501                                 {
502                                 if (BIO_write(bp,", ",2) != 2) goto err;
503                                 }
504                         l--;
505                         }
506                 if (*s == '\0') break;
507                 s++;
508                 l--;
509                 }
510         
511         ret=1;
512         if (0)
513                 {
514 err:
515                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
516                 }
517         OPENSSL_free(b);
518         return(ret);
519         }