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