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 "buffer.h"
  62 #include "bn.h"
  63 #ifndef NO_RSA
  64 #include "rsa.h"
  65 #endif
  66 #ifndef NO_DSA
  67 #include "dsa.h"
  68 #endif
  69 #include "objects.h"
  70 #include "x509.h"
  71
  72 #ifndef NO_FP_API
  73 int X509_print_fp(fp,x)
  74 FILE *fp;
  75 X509 *x;
  76         {
  77         BIO *b;
  78         int ret;
  79
  80         if ((b=BIO_new(BIO_s_file())) == NULL)
  81                 {
  82                 X509err(X509_F_X509_PRINT_FP,ERR_R_BUF_LIB);
  83                 return(0);
  84                 }
  85         BIO_set_fp(b,fp,BIO_NOCLOSE);
  86         ret=X509_print(b, x);
  87         BIO_free(b);
  88         return(ret);
  89         }
  90 #endif
  91
  92 int X509_print(bp,x)
  93 BIO *bp;
  94 X509 *x;
  95         {
  96         long l;
  97         int ret=0,i,j,n;
  98         char *m=NULL,*s;
  99         X509_CINF *ci;
 100         ASN1_INTEGER *bs;
 101         EVP_PKEY *pkey=NULL;
 102         char *neg;
 103         X509_EXTENSION *ex;
 104         ASN1_STRING *str=NULL;
 105
 106         ci=x->cert_info;
 107         if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
 108         if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
 109         l=X509_get_version(x);
 110         if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
 111         if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
 112
 113         bs=X509_get_serialNumber(x);
 114         if (bs->length <= 4)
 115                 {
 116                 l=ASN1_INTEGER_get(bs);
 117                 if (l < 0)
 118                         {
 119                         l= -l;
 120                         neg="-";
 121                         }
 122                 else
 123                         neg="";
 124                 if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
 125                         goto err;
 126                 }
 127         else
 128                 {
 129                 neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
 130                 if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
 131
 132                 for (i=0; i<bs->length; i++)
 133                         {
 134                         if (BIO_printf(bp,"%02x%c",bs->data[i],
 135                                 ((i+1 == bs->length)?'\n':':')) <= 0)
 136                                 goto err;
 137                         }
 138                 }
 139
 140         i=OBJ_obj2nid(ci->signature->algorithm);
 141         if (BIO_printf(bp,"%8sSignature Algorithm: %s\n","",
 142                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 143                 goto err;
 144
 145         if (BIO_write(bp,"        Issuer: ",16) <= 0) goto err;
 146         if (!X509_NAME_print(bp,X509_get_issuer_name(x),16)) goto err;
 147         if (BIO_write(bp,"\n        Validity\n",18) <= 0) goto err;
 148         if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
 149         if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
 150         if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
 151         if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
 152         if (BIO_write(bp,"\n        Subject: ",18) <= 0) goto err;
 153         if (!X509_NAME_print(bp,X509_get_subject_name(x),16)) goto err;
 154         if (BIO_write(bp,"\n        Subject Public Key Info:\n",34) <= 0)
 155                 goto err;
 156         i=OBJ_obj2nid(ci->key->algor->algorithm);
 157         if (BIO_printf(bp,"%12sPublic Key Algorithm: %s\n","",
 158                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
 159
 160         pkey=X509_get_pubkey(x);
 161         if (pkey == NULL)
 162                 {
 163                 BIO_printf(bp,"%12sUnable to load Public Key\n","");
 164                 }
 165         else
 166 #ifndef NO_RSA
 167         if (pkey->type == EVP_PKEY_RSA)
 168                 {
 169                 BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
 170                 BN_num_bits(pkey->pkey.rsa->n));
 171                 RSA_print(bp,pkey->pkey.rsa,16);
 172                 }
 173         else
 174 #endif
 175 #ifndef NO_DSA
 176         if (pkey->type == EVP_PKEY_DSA)
 177                 {
 178                 BIO_printf(bp,"%12sDSA Public Key:\n","");
 179                 DSA_print(bp,pkey->pkey.dsa,16);
 180                 }
 181         else
 182 #endif
 183                 BIO_printf(bp,"%12sUnknown Public Key:\n","");
 184
 185         EVP_PKEY_free(pkey);
 186
 187         n=X509_get_ext_count(x);
 188         if (n > 0)
 189                 {
 190                 BIO_printf(bp,"%8sX509v3 extensions:\n","");
 191                 for (i=0; i<n; i++)
 192                         {
 193                         int data_type,pack_type;
 194                         ASN1_OBJECT *obj;
 195
 196                         ex=X509_get_ext(x,i);
 197                         if (BIO_printf(bp,"%12s","") <= 0) goto err;
 198                         obj=X509_EXTENSION_get_object(ex);
 199                         i2a_ASN1_OBJECT(bp,obj);
 200                         j=X509_EXTENSION_get_critical(ex);
 201                         if (BIO_printf(bp,": %s\n%16s",j?"critical":"","") <= 0)
 202                                 goto err;
 203
 204                         pack_type=X509v3_pack_type_by_OBJ(obj);
 205                         data_type=X509v3_data_type_by_OBJ(obj);
 206
 207                         if (pack_type == X509_EXT_PACK_STRING)
 208                                 {
 209                                 if (X509v3_unpack_string(
 210                                         &str,data_type,
 211                                         X509_EXTENSION_get_data(ex)) == NULL)
 212                                         {
 213                                         /* hmm... */
 214                                         goto err;
 215                                         }
 216                                 if (    (data_type == V_ASN1_IA5STRING) ||
 217                                         (data_type == V_ASN1_PRINTABLESTRING) ||
 218                                         (data_type == V_ASN1_T61STRING))
 219                                         {
 220                                         if (BIO_write(bp,(char *)str->data,
 221                                                         str->length) <= 0)
 222                                                 goto err;
 223                                         }
 224                                 else if (data_type == V_ASN1_BIT_STRING)
 225                                         {
 226                                         BIO_printf(bp,"0x");
 227                                         for (j=0; j<str->length; j++)
 228                                                 {
 229                                                 BIO_printf(bp,"%02X",
 230                                                         str->data[j]);
 231                                                 }
 232                                         }
 233                                 }
 234                         else
 235                                 {
 236                                 ASN1_OCTET_STRING_print(bp,ex->value);
 237                                 }
 238                         if (BIO_write(bp,"\n",1) <= 0) goto err;
 239                         }
 240                 }
 241
 242         i=OBJ_obj2nid(x->sig_alg->algorithm);
 243         if (BIO_printf(bp,"%4sSignature Algorithm: %s","",
 244                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
 245
 246         n=x->signature->length;
 247         s=(char *)x->signature->data;
 248         for (i=0; i<n; i++)
 249                 {
 250                 if ((i%18) == 0)
 251                         if (BIO_write(bp,"\n        ",9) <= 0) goto err;
 252                 if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
 253                         ((i+1) == n)?"":":") <= 0) goto err;
 254                 }
 255         if (BIO_write(bp,"\n",1) != 1) goto err;
 256         ret=1;
 257 err:
 258         if (str != NULL) ASN1_STRING_free(str);
 259         if (m != NULL) Free((char *)m);
 260         return(ret);
 261         }
 262
 263 int ASN1_STRING_print(bp,v)
 264 BIO *bp;
 265 ASN1_STRING *v;
 266         {
 267         int i,n;
 268         char buf[80],*p;;
 269
 270         if (v == NULL) return(0);
 271         n=0;
 272         p=(char *)v->data;
 273         for (i=0; i<v->length; i++)
 274                 {
 275                 if ((p[i] > '~') || ((p[i] < ' ') &&
 276                         (p[i] != '\n') && (p[i] != '\r')))
 277                         buf[n]='.';
 278                 else
 279                         buf[n]=p[i];
 280                 n++;
 281                 if (n >= 80)
 282                         {
 283                         if (BIO_write(bp,buf,n) <= 0)
 284                                 return(0);
 285                         n=0;
 286                         }
 287                 }
 288         if (n > 0)
 289                 if (BIO_write(bp,buf,n) <= 0)
 290                         return(0);
 291         return(1);
 292         }
 293
 294 int ASN1_TIME_print(bp, tm)
 295 BIO *bp;
 296 ASN1_TIME *tm;
 297 {
 298         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
 299         if(tm->type == V_ASN1_GENERALIZEDTIME)
 300                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
 301         BIO_write(bp,"Bad time value",14);
 302         return(0);
 303 }
 304
 305
 306 int ASN1_GENERALIZEDTIME_print(bp,tm)
 307 BIO *bp;
 308 ASN1_GENERALIZEDTIME *tm;
 309         {
 310         char *v;
 311         int gmt=0;
 312         static char *mon[12]={
 313                 "Jan","Feb","Mar","Apr","May","Jun",
 314                 "Jul","Aug","Sep","Oct","Nov","Dec"};
 315         int i;
 316         int y=0,M=0,d=0,h=0,m=0,s=0;
 317
 318         i=tm->length;
 319         v=(char *)tm->data;
 320
 321         if (i < 12) goto err;
 322         if (v[i-1] == 'Z') gmt=1;
 323         for (i=0; i<12; i++)
 324                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 325         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
 326         M= (v[4]-'0')*10+(v[5]-'0');
 327         if ((M > 12) || (M < 1)) goto err;
 328         d= (v[6]-'0')*10+(v[7]-'0');
 329         h= (v[8]-'0')*10+(v[9]-'0');
 330         m=  (v[10]-'0')*10+(v[11]-'0');
 331         if (    (v[12] >= '0') && (v[12] <= '9') &&
 332                 (v[13] >= '0') && (v[13] <= '9'))
 333                 s=  (v[12]-'0')*10+(v[13]-'0');
 334
 335         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 336                 mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
 337                 return(0);
 338         else
 339                 return(1);
 340 err:
 341         BIO_write(bp,"Bad time value",14);
 342         return(0);
 343         }
 344
 345 int ASN1_UTCTIME_print(bp,tm)
 346 BIO *bp;
 347 ASN1_UTCTIME *tm;
 348         {
 349         char *v;
 350         int gmt=0;
 351         static char *mon[12]={
 352                 "Jan","Feb","Mar","Apr","May","Jun",
 353                 "Jul","Aug","Sep","Oct","Nov","Dec"};
 354         int i;
 355         int y=0,M=0,d=0,h=0,m=0,s=0;
 356
 357         i=tm->length;
 358         v=(char *)tm->data;
 359
 360         if (i < 10) goto err;
 361         if (v[i-1] == 'Z') gmt=1;
 362         for (i=0; i<10; i++)
 363                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 364         y= (v[0]-'0')*10+(v[1]-'0');
 365         if (y < 50) y+=100;
 366         M= (v[2]-'0')*10+(v[3]-'0');
 367         if ((M > 12) || (M < 1)) goto err;
 368         d= (v[4]-'0')*10+(v[5]-'0');
 369         h= (v[6]-'0')*10+(v[7]-'0');
 370         m=  (v[8]-'0')*10+(v[9]-'0');
 371         if (    (v[10] >= '0') && (v[10] <= '9') &&
 372                 (v[11] >= '0') && (v[11] <= '9'))
 373                 s=  (v[10]-'0')*10+(v[11]-'0');
 374
 375         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 376                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
 377                 return(0);
 378         else
 379                 return(1);
 380 err:
 381         BIO_write(bp,"Bad time value",14);
 382         return(0);
 383         }
 384
 385 int X509_NAME_print(bp,name,obase)
 386 BIO *bp;
 387 X509_NAME *name;
 388 int obase;
 389         {
 390         char *s,*c;
 391         int ret=0,l,ll,i,first=1;
 392         char buf[256];
 393
 394         ll=80-2-obase;
 395
 396         s=X509_NAME_oneline(name,buf,256);
 397         s++; /* skip the first slash */
 398
 399         l=ll;
 400         c=s;
 401         for (;;)
 402                 {
 403                 if (    ((*s == '/') &&
 404                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
 405                                         (s[2] == '=') ||
 406                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
 407                                         (s[3] == '='))
 408                                  ))) ||
 409                         (*s == '\0'))
 410                         {
 411                         if ((l <= 0) && !first)
 412                                 {
 413                                 first=0;
 414                                 if (BIO_write(bp,"\n",1) != 1) goto err;
 415                                 for (i=0; i<obase; i++)
 416                                         {
 417                                         if (BIO_write(bp," ",1) != 1) goto err;
 418                                         }
 419                                 l=ll;
 420                                 }
 421                         i=s-c;
 422                         if (BIO_write(bp,c,i) != i) goto err;
 423                         c+=i;
 424                         c++;
 425                         if (*s != '\0')
 426                                 {
 427                                 if (BIO_write(bp,", ",2) != 2) goto err;
 428                                 }
 429                         l--;
 430                         }
 431                 if (*s == '\0') break;
 432                 s++;
 433                 l--;
 434                 }
 435
 436         ret=1;
 437         if (0)
 438                 {
 439 err:
 440                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
 441                 }
 442         return(ret);
 443         }
 444