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 
76 #ifndef OPENSSL_NO_FP_API
X509_print_fp(FILE * fp,X509 * x)77 int X509_print_fp(FILE *fp, X509 *x)
78 	{
79 	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
80 	}
81 
X509_print_ex_fp(FILE * fp,X509 * x,unsigned long nmflag,unsigned long cflag)82 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
83         {
84         BIO *b;
85         int ret;
86 
87         if ((b=BIO_new(BIO_s_file())) == NULL)
88 		{
89 		X509err(X509_F_X509_PRINT_EX_FP,ERR_R_BUF_LIB);
90                 return(0);
91 		}
92         BIO_set_fp(b,fp,BIO_NOCLOSE);
93         ret=X509_print_ex(b, x, nmflag, cflag);
94         BIO_free(b);
95         return(ret);
96         }
97 #endif
98 
X509_print(BIO * bp,X509 * x)99 int X509_print(BIO *bp, X509 *x)
100 {
101 	return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
102 }
103 
X509_print_ex(BIO * bp,X509 * x,unsigned long nmflags,unsigned long cflag)104 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
105 	{
106 	long l;
107 	int ret=0,i;
108 	char *m=NULL,mlch = ' ';
109 	int nmindent = 0;
110 	X509_CINF *ci;
111 	ASN1_INTEGER *bs;
112 	EVP_PKEY *pkey=NULL;
113 	const char *neg;
114 	ASN1_STRING *str=NULL;
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 #ifndef OPENSSL_NO_RSA
219 		if (pkey->type == EVP_PKEY_RSA)
220 			{
221 			BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
222 			BN_num_bits(pkey->pkey.rsa->n));
223 			RSA_print(bp,pkey->pkey.rsa,16);
224 			}
225 		else
226 #endif
227 #ifndef OPENSSL_NO_DSA
228 		if (pkey->type == EVP_PKEY_DSA)
229 			{
230 			BIO_printf(bp,"%12sDSA Public Key:\n","");
231 			DSA_print(bp,pkey->pkey.dsa,16);
232 			}
233 		else
234 #endif
235 #ifndef OPENSSL_NO_EC
236 		if (pkey->type == EVP_PKEY_EC)
237 			{
238 			BIO_printf(bp, "%12sEC Public Key:\n","");
239 			EC_KEY_print(bp, pkey->pkey.ec, 16);
240 			}
241 		else
242 #endif
243 			BIO_printf(bp,"%12sUnknown Public Key:\n","");
244 
245 		EVP_PKEY_free(pkey);
246 		}
247 
248 	if (!(cflag & X509_FLAG_NO_EXTENSIONS))
249 		X509V3_extensions_print(bp, "X509v3 extensions",
250 					ci->extensions, cflag, 8);
251 
252 	if(!(cflag & X509_FLAG_NO_SIGDUMP))
253 		{
254 		if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;
255 		}
256 	if(!(cflag & X509_FLAG_NO_AUX))
257 		{
258 		if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
259 		}
260 	ret=1;
261 err:
262 	if (str != NULL) ASN1_STRING_free(str);
263 	if (m != NULL) OPENSSL_free(m);
264 	return(ret);
265 	}
266 
X509_ocspid_print(BIO * bp,X509 * x)267 int X509_ocspid_print (BIO *bp, X509 *x)
268 	{
269 	unsigned char *der=NULL ;
270 	unsigned char *dertmp;
271 	int derlen;
272 	int i;
273 	unsigned char SHA1md[SHA_DIGEST_LENGTH];
274 
275 	/* display the hash of the subject as it would appear
276 	   in OCSP requests */
277 	if (BIO_printf(bp,"        Subject OCSP hash: ") <= 0)
278 		goto err;
279 	derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
280 	if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)
281 		goto err;
282 	i2d_X509_NAME(x->cert_info->subject, &dertmp);
283 
284 	EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL);
285 	for (i=0; i < SHA_DIGEST_LENGTH; i++)
286 		{
287 		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;
288 		}
289 	OPENSSL_free (der);
290 	der=NULL;
291 
292 	/* display the hash of the public key as it would appear
293 	   in OCSP requests */
294 	if (BIO_printf(bp,"\n        Public key OCSP hash: ") <= 0)
295 		goto err;
296 
297 	EVP_Digest(x->cert_info->key->public_key->data,
298 		x->cert_info->key->public_key->length, SHA1md, NULL, EVP_sha1(), NULL);
299 	for (i=0; i < SHA_DIGEST_LENGTH; i++)
300 		{
301 		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)
302 			goto err;
303 		}
304 	BIO_printf(bp,"\n");
305 
306 	return (1);
307 err:
308 	if (der != NULL) OPENSSL_free(der);
309 	return(0);
310 	}
311 
X509_signature_print(BIO * bp,X509_ALGOR * sigalg,ASN1_STRING * sig)312 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
313 {
314 	unsigned char *s;
315 	int i, n;
316 	if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;
317 	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
318 
319 	n=sig->length;
320 	s=sig->data;
321 	for (i=0; i<n; i++)
322 		{
323 		if ((i%18) == 0)
324 			if (BIO_write(bp,"\n        ",9) <= 0) return 0;
325 			if (BIO_printf(bp,"%02x%s",s[i],
326 				((i+1) == n)?"":":") <= 0) return 0;
327 		}
328 	if (BIO_write(bp,"\n",1) != 1) return 0;
329 	return 1;
330 }
331 
ASN1_STRING_print(BIO * bp,ASN1_STRING * v)332 int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
333 	{
334 	int i,n;
335 	char buf[80],*p;
336 
337 	if (v == NULL) return(0);
338 	n=0;
339 	p=(char *)v->data;
340 	for (i=0; i<v->length; i++)
341 		{
342 		if ((p[i] > '~') || ((p[i] < ' ') &&
343 			(p[i] != '\n') && (p[i] != '\r')))
344 			buf[n]='.';
345 		else
346 			buf[n]=p[i];
347 		n++;
348 		if (n >= 80)
349 			{
350 			if (BIO_write(bp,buf,n) <= 0)
351 				return(0);
352 			n=0;
353 			}
354 		}
355 	if (n > 0)
356 		if (BIO_write(bp,buf,n) <= 0)
357 			return(0);
358 	return(1);
359 	}
360 
ASN1_TIME_print(BIO * bp,ASN1_TIME * tm)361 int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
362 {
363 	if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
364 	if(tm->type == V_ASN1_GENERALIZEDTIME)
365 				return ASN1_GENERALIZEDTIME_print(bp, tm);
366 	BIO_write(bp,"Bad time value",14);
367 	return(0);
368 }
369 
370 static const char *mon[12]=
371     {
372     "Jan","Feb","Mar","Apr","May","Jun",
373     "Jul","Aug","Sep","Oct","Nov","Dec"
374     };
375 
ASN1_GENERALIZEDTIME_print(BIO * bp,ASN1_GENERALIZEDTIME * tm)376 int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
377 	{
378 	char *v;
379 	int gmt=0;
380 	int i;
381 	int y=0,M=0,d=0,h=0,m=0,s=0;
382 
383 	i=tm->length;
384 	v=(char *)tm->data;
385 
386 	if (i < 12) goto err;
387 	if (v[i-1] == 'Z') gmt=1;
388 	for (i=0; i<12; i++)
389 		if ((v[i] > '9') || (v[i] < '0')) goto err;
390 	y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
391 	M= (v[4]-'0')*10+(v[5]-'0');
392 	if ((M > 12) || (M < 1)) goto err;
393 	d= (v[6]-'0')*10+(v[7]-'0');
394 	h= (v[8]-'0')*10+(v[9]-'0');
395 	m=  (v[10]-'0')*10+(v[11]-'0');
396 	if (tm->length >= 14 &&
397 	    (v[12] >= '0') && (v[12] <= '9') &&
398 	    (v[13] >= '0') && (v[13] <= '9'))
399 		s=  (v[12]-'0')*10+(v[13]-'0');
400 
401 	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
402 		mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
403 		return(0);
404 	else
405 		return(1);
406 err:
407 	BIO_write(bp,"Bad time value",14);
408 	return(0);
409 	}
410 
ASN1_UTCTIME_print(BIO * bp,ASN1_UTCTIME * tm)411 int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
412 	{
413 	char *v;
414 	int gmt=0;
415 	int i;
416 	int y=0,M=0,d=0,h=0,m=0,s=0;
417 
418 	i=tm->length;
419 	v=(char *)tm->data;
420 
421 	if (i < 10) goto err;
422 	if (v[i-1] == 'Z') gmt=1;
423 	for (i=0; i<10; i++)
424 		if ((v[i] > '9') || (v[i] < '0')) goto err;
425 	y= (v[0]-'0')*10+(v[1]-'0');
426 	if (y < 50) y+=100;
427 	M= (v[2]-'0')*10+(v[3]-'0');
428 	if ((M > 12) || (M < 1)) goto err;
429 	d= (v[4]-'0')*10+(v[5]-'0');
430 	h= (v[6]-'0')*10+(v[7]-'0');
431 	m=  (v[8]-'0')*10+(v[9]-'0');
432 	if (tm->length >=12 &&
433 	    (v[10] >= '0') && (v[10] <= '9') &&
434 	    (v[11] >= '0') && (v[11] <= '9'))
435 		s=  (v[10]-'0')*10+(v[11]-'0');
436 
437 	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
438 		mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
439 		return(0);
440 	else
441 		return(1);
442 err:
443 	BIO_write(bp,"Bad time value",14);
444 	return(0);
445 	}
446 
X509_NAME_print(BIO * bp,X509_NAME * name,int obase)447 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
448 	{
449 	char *s,*c,*b;
450 	int ret=0,l,i;
451 
452 	l=80-2-obase;
453 
454 	b=X509_NAME_oneline(name,NULL,0);
455 	if (!*b)
456 		{
457 		OPENSSL_free(b);
458 		return 1;
459 		}
460 	s=b+1; /* skip the first slash */
461 
462 	c=s;
463 	for (;;)
464 		{
465 #ifndef CHARSET_EBCDIC
466 		if (	((*s == '/') &&
467 				((s[1] >= 'A') && (s[1] <= 'Z') && (
468 					(s[2] == '=') ||
469 					((s[2] >= 'A') && (s[2] <= 'Z') &&
470 					(s[3] == '='))
471 				 ))) ||
472 			(*s == '\0'))
473 #else
474 		if (	((*s == '/') &&
475 				(isupper(s[1]) && (
476 					(s[2] == '=') ||
477 					(isupper(s[2]) &&
478 					(s[3] == '='))
479 				 ))) ||
480 			(*s == '\0'))
481 #endif
482 			{
483 			i=s-c;
484 			if (BIO_write(bp,c,i) != i) goto err;
485 			c=s+1;	/* skip following slash */
486 			if (*s != '\0')
487 				{
488 				if (BIO_write(bp,", ",2) != 2) goto err;
489 				}
490 			l--;
491 			}
492 		if (*s == '\0') break;
493 		s++;
494 		l--;
495 		}
496 
497 	ret=1;
498 	if (0)
499 		{
500 err:
501 		X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
502 		}
503 	OPENSSL_free(b);
504 	return(ret);
505 	}
506