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DSA verification should insist that r and s are in the allowed range.
[thirdparty/openssl.git] / crypto / asn1 / t_x509.c
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d02b48c6 1/* crypto/asn1/t_x509.c */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE
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"
ec577822
BM
61#include <openssl/buffer.h>
62#include <openssl/bn.h>
cf1b7d96 63#ifndef OPENSSL_NO_RSA
ec577822 64#include <openssl/rsa.h>
d02b48c6 65#endif
cf1b7d96 66#ifndef OPENSSL_NO_DSA
ec577822 67#include <openssl/dsa.h>
d02b48c6 68#endif
ec577822
BM
69#include <openssl/objects.h>
70#include <openssl/x509.h>
71#include <openssl/x509v3.h>
d02b48c6 72
cf1b7d96 73#ifndef OPENSSL_NO_FP_API
6b691a5c 74int X509_print_fp(FILE *fp, X509 *x)
d0c98589
DSH
75 {
76 return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
77 }
78
79int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
d02b48c6
RE
80 {
81 BIO *b;
82 int ret;
83
84 if ((b=BIO_new(BIO_s_file())) == NULL)
85 {
86 X509err(X509_F_X509_PRINT_FP,ERR_R_BUF_LIB);
87 return(0);
88 }
89 BIO_set_fp(b,fp,BIO_NOCLOSE);
d0c98589 90 ret=X509_print_ex(b, x, nmflag, cflag);
d02b48c6
RE
91 BIO_free(b);
92 return(ret);
93 }
94#endif
95
6b691a5c 96int X509_print(BIO *bp, X509 *x)
d0c98589
DSH
97{
98 return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
99}
100
101int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
d02b48c6
RE
102 {
103 long l;
2c15d426 104 int ret=0,i;
de487514 105 char *m=NULL,mlch = ' ';
8ca533e3 106 int nmindent = 0;
d02b48c6
RE
107 X509_CINF *ci;
108 ASN1_INTEGER *bs;
109 EVP_PKEY *pkey=NULL;
e778802f 110 const char *neg;
d02b48c6
RE
111 ASN1_STRING *str=NULL;
112
8ca533e3 113 if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
d0c98589 114 mlch = '\n';
535d79da 115 nmindent = 12;
8ca533e3
DSH
116 }
117
118 if(nmflags == X509_FLAG_COMPAT)
119 nmindent = 16;
d0c98589 120
d02b48c6 121 ci=x->cert_info;
d0c98589 122 if(!(cflag & X509_FLAG_NO_HEADER))
d02b48c6 123 {
d0c98589
DSH
124 if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
125 if (BIO_write(bp," Data:\n",10) <= 0) goto err;
d02b48c6 126 }
d0c98589 127 if(!(cflag & X509_FLAG_NO_VERSION))
d02b48c6 128 {
d0c98589
DSH
129 l=X509_get_version(x);
130 if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
131 }
132 if(!(cflag & X509_FLAG_NO_SERIAL))
133 {
134
135 if (BIO_write(bp," Serial Number:",22) <= 0) goto err;
d02b48c6 136
d0c98589
DSH
137 bs=X509_get_serialNumber(x);
138 if (bs->length <= 4)
d02b48c6 139 {
d0c98589
DSH
140 l=ASN1_INTEGER_get(bs);
141 if (l < 0)
142 {
143 l= -l;
144 neg="-";
145 }
146 else
147 neg="";
148 if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
d02b48c6
RE
149 goto err;
150 }
d0c98589
DSH
151 else
152 {
153 neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
154 if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
155
156 for (i=0; i<bs->length; i++)
157 {
158 if (BIO_printf(bp,"%02x%c",bs->data[i],
159 ((i+1 == bs->length)?'\n':':')) <= 0)
160 goto err;
161 }
162 }
163
d02b48c6
RE
164 }
165
d0c98589 166 if(!(cflag & X509_FLAG_NO_SIGNAME))
dfeab068 167 {
4ff18c8c
DSH
168 if (BIO_printf(bp,"%8sSignature Algorithm: ","") <= 0)
169 goto err;
170 if (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0)
171 goto err;
172 if (BIO_puts(bp, "\n") <= 0)
d0c98589 173 goto err;
dfeab068 174 }
d0c98589
DSH
175
176 if(!(cflag & X509_FLAG_NO_ISSUER))
d02b48c6 177 {
d0c98589 178 if (BIO_printf(bp," Issuer:%c",mlch) <= 0) goto err;
8ca533e3 179 if (!X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags)) goto err;
0a3ea5d3 180 if (BIO_write(bp,"\n",1) <= 0) goto err;
d02b48c6 181 }
d0c98589 182 if(!(cflag & X509_FLAG_NO_VALIDITY))
d02b48c6 183 {
0a3ea5d3 184 if (BIO_write(bp," Validity\n",17) <= 0) goto err;
d0c98589
DSH
185 if (BIO_write(bp," Not Before: ",24) <= 0) goto err;
186 if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
187 if (BIO_write(bp,"\n Not After : ",25) <= 0) goto err;
188 if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
189 if (BIO_write(bp,"\n",1) <= 0) goto err;
d02b48c6 190 }
d0c98589
DSH
191 if(!(cflag & X509_FLAG_NO_SUBJECT))
192 {
193 if (BIO_printf(bp," Subject:%c",mlch) <= 0) goto err;
8ca533e3 194 if (!X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags)) goto err;
0a3ea5d3 195 if (BIO_write(bp,"\n",1) <= 0) goto err;
d0c98589
DSH
196 }
197 if(!(cflag & X509_FLAG_NO_PUBKEY))
198 {
0a3ea5d3 199 if (BIO_write(bp," Subject Public Key Info:\n",33) <= 0)
d0c98589 200 goto err;
4ff18c8c
DSH
201 if (BIO_printf(bp,"%12sPublic Key Algorithm: ","") <= 0)
202 goto err;
203 if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
204 goto err;
205 if (BIO_puts(bp, "\n") <= 0)
206 goto err;
d0c98589
DSH
207
208 pkey=X509_get_pubkey(x);
209 if (pkey == NULL)
210 {
211 BIO_printf(bp,"%12sUnable to load Public Key\n","");
212 ERR_print_errors(bp);
213 }
214 else
cf1b7d96 215#ifndef OPENSSL_NO_RSA
d0c98589
DSH
216 if (pkey->type == EVP_PKEY_RSA)
217 {
218 BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
219 BN_num_bits(pkey->pkey.rsa->n));
220 RSA_print(bp,pkey->pkey.rsa,16);
221 }
222 else
d02b48c6 223#endif
cf1b7d96 224#ifndef OPENSSL_NO_DSA
d0c98589
DSH
225 if (pkey->type == EVP_PKEY_DSA)
226 {
227 BIO_printf(bp,"%12sDSA Public Key:\n","");
228 DSA_print(bp,pkey->pkey.dsa,16);
229 }
230 else
231#endif
232 BIO_printf(bp,"%12sUnknown Public Key:\n","");
d02b48c6 233
d0c98589
DSH
234 EVP_PKEY_free(pkey);
235 }
cfcf6453 236
2c15d426
DSH
237 if (!(cflag & X509_FLAG_NO_EXTENSIONS))
238 X509V3_extensions_print(bp, "X509v3 extensions",
239 ci->extensions, cflag, 8);
d02b48c6 240
d0c98589
DSH
241 if(!(cflag & X509_FLAG_NO_SIGDUMP))
242 {
de487514 243 if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;
d0c98589
DSH
244 }
245 if(!(cflag & X509_FLAG_NO_AUX))
d02b48c6 246 {
d0c98589 247 if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
d02b48c6 248 }
d02b48c6
RE
249 ret=1;
250err:
251 if (str != NULL) ASN1_STRING_free(str);
26a3a48d 252 if (m != NULL) OPENSSL_free(m);
d02b48c6
RE
253 return(ret);
254 }
255
eb64730b
RL
256int X509_ocspid_print (BIO *bp, X509 *x)
257 {
258 unsigned char *der=NULL ;
259 unsigned char *dertmp;
260 int derlen;
261 int i;
eb64730b
RL
262 unsigned char SHA1md[SHA_DIGEST_LENGTH];
263
264 /* display the hash of the subject as it would appear
265 in OCSP requests */
266 if (BIO_printf(bp," Subject OCSP hash: ") <= 0)
267 goto err;
268 derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
269 if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)
270 goto err;
271 i2d_X509_NAME(x->cert_info->subject, &dertmp);
272
323f289c 273 EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1());
eb64730b
RL
274 for (i=0; i < SHA_DIGEST_LENGTH; i++)
275 {
276 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;
277 }
278 OPENSSL_free (der);
279 der=NULL;
280
281 /* display the hash of the public key as it would appear
282 in OCSP requests */
283 if (BIO_printf(bp,"\n Public key OCSP hash: ") <= 0)
284 goto err;
285
323f289c
DSH
286 EVP_Digest(x->cert_info->key->public_key->data,
287 x->cert_info->key->public_key->length, SHA1md, NULL, EVP_sha1());
eb64730b
RL
288 for (i=0; i < SHA_DIGEST_LENGTH; i++)
289 {
290 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)
291 goto err;
292 }
293 BIO_printf(bp,"\n");
294
295 return (1);
296err:
297 if (der != NULL) OPENSSL_free(der);
298 return(0);
299 }
300
de487514
DSH
301int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
302{
303 unsigned char *s;
304 int i, n;
305 if (BIO_puts(bp," Signature Algorithm: ") <= 0) return 0;
306 if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
307
308 n=sig->length;
309 s=sig->data;
310 for (i=0; i<n; i++)
311 {
312 if ((i%18) == 0)
313 if (BIO_write(bp,"\n ",9) <= 0) return 0;
314 if (BIO_printf(bp,"%02x%s",s[i],
315 ((i+1) == n)?"":":") <= 0) return 0;
316 }
317 if (BIO_write(bp,"\n",1) != 1) return 0;
318 return 1;
319}
320
6b691a5c 321int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
d02b48c6
RE
322 {
323 int i,n;
324 char buf[80],*p;;
325
326 if (v == NULL) return(0);
327 n=0;
328 p=(char *)v->data;
329 for (i=0; i<v->length; i++)
330 {
331 if ((p[i] > '~') || ((p[i] < ' ') &&
332 (p[i] != '\n') && (p[i] != '\r')))
333 buf[n]='.';
334 else
335 buf[n]=p[i];
336 n++;
337 if (n >= 80)
338 {
339 if (BIO_write(bp,buf,n) <= 0)
340 return(0);
341 n=0;
342 }
343 }
344 if (n > 0)
345 if (BIO_write(bp,buf,n) <= 0)
346 return(0);
347 return(1);
348 }
349
6b691a5c 350int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
f6aed2cd
DSH
351{
352 if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
353 if(tm->type == V_ASN1_GENERALIZEDTIME)
354 return ASN1_GENERALIZEDTIME_print(bp, tm);
355 BIO_write(bp,"Bad time value",14);
356 return(0);
357}
358
e778802f
BL
359static const char *mon[12]=
360 {
361 "Jan","Feb","Mar","Apr","May","Jun",
362 "Jul","Aug","Sep","Oct","Nov","Dec"
363 };
f6aed2cd 364
6b691a5c 365int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
f6aed2cd
DSH
366 {
367 char *v;
368 int gmt=0;
f6aed2cd
DSH
369 int i;
370 int y=0,M=0,d=0,h=0,m=0,s=0;
371
372 i=tm->length;
373 v=(char *)tm->data;
374
375 if (i < 12) goto err;
376 if (v[i-1] == 'Z') gmt=1;
377 for (i=0; i<12; i++)
378 if ((v[i] > '9') || (v[i] < '0')) goto err;
379 y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
380 M= (v[4]-'0')*10+(v[5]-'0');
381 if ((M > 12) || (M < 1)) goto err;
382 d= (v[6]-'0')*10+(v[7]-'0');
383 h= (v[8]-'0')*10+(v[9]-'0');
384 m= (v[10]-'0')*10+(v[11]-'0');
385 if ( (v[12] >= '0') && (v[12] <= '9') &&
386 (v[13] >= '0') && (v[13] <= '9'))
387 s= (v[12]-'0')*10+(v[13]-'0');
388
389 if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
390 mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
391 return(0);
392 else
393 return(1);
394err:
395 BIO_write(bp,"Bad time value",14);
396 return(0);
397 }
398
6b691a5c 399int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
d02b48c6
RE
400 {
401 char *v;
402 int gmt=0;
d02b48c6
RE
403 int i;
404 int y=0,M=0,d=0,h=0,m=0,s=0;
405
406 i=tm->length;
407 v=(char *)tm->data;
408
409 if (i < 10) goto err;
410 if (v[i-1] == 'Z') gmt=1;
411 for (i=0; i<10; i++)
412 if ((v[i] > '9') || (v[i] < '0')) goto err;
413 y= (v[0]-'0')*10+(v[1]-'0');
58964a49 414 if (y < 50) y+=100;
d02b48c6
RE
415 M= (v[2]-'0')*10+(v[3]-'0');
416 if ((M > 12) || (M < 1)) goto err;
417 d= (v[4]-'0')*10+(v[5]-'0');
418 h= (v[6]-'0')*10+(v[7]-'0');
419 m= (v[8]-'0')*10+(v[9]-'0');
420 if ( (v[10] >= '0') && (v[10] <= '9') &&
421 (v[11] >= '0') && (v[11] <= '9'))
422 s= (v[10]-'0')*10+(v[11]-'0');
423
424 if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
425 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
426 return(0);
427 else
428 return(1);
429err:
430 BIO_write(bp,"Bad time value",14);
431 return(0);
432 }
433
6b691a5c 434int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
d02b48c6
RE
435 {
436 char *s,*c;
437 int ret=0,l,ll,i,first=1;
438 char buf[256];
439
440 ll=80-2-obase;
441
442 s=X509_NAME_oneline(name,buf,256);
443 s++; /* skip the first slash */
444
445 l=ll;
446 c=s;
447 for (;;)
448 {
a53955d8 449#ifndef CHARSET_EBCDIC
d02b48c6
RE
450 if ( ((*s == '/') &&
451 ((s[1] >= 'A') && (s[1] <= 'Z') && (
452 (s[2] == '=') ||
453 ((s[2] >= 'A') && (s[2] <= 'Z') &&
454 (s[3] == '='))
455 ))) ||
456 (*s == '\0'))
a53955d8
UM
457#else
458 if ( ((*s == '/') &&
459 (isupper(s[1]) && (
460 (s[2] == '=') ||
461 (isupper(s[2]) &&
462 (s[3] == '='))
463 ))) ||
464 (*s == '\0'))
465#endif
d02b48c6
RE
466 {
467 if ((l <= 0) && !first)
468 {
469 first=0;
470 if (BIO_write(bp,"\n",1) != 1) goto err;
471 for (i=0; i<obase; i++)
472 {
473 if (BIO_write(bp," ",1) != 1) goto err;
474 }
475 l=ll;
476 }
477 i=s-c;
478 if (BIO_write(bp,c,i) != i) goto err;
479 c+=i;
480 c++;
481 if (*s != '\0')
482 {
483 if (BIO_write(bp,", ",2) != 2) goto err;
484 }
485 l--;
486 }
487 if (*s == '\0') break;
488 s++;
489 l--;
490 }
491
492 ret=1;
493 if (0)
494 {
495err:
496 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
497 }
498 return(ret);
499 }
500