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                         {
 301                         if (BIO_write(bp,"\n",1) <= 0) return 0;
 302                         if (BIO_indent(bp, indent, indent) <= 0) return 0;
 303                         }
 304                         if (BIO_printf(bp,"%02x%s",s[i],
 305                                 ((i+1) == n)?"":":") <= 0) return 0;
 306                 }
 307         if (BIO_write(bp,"\n",1) != 1) return 0;
 308
 309         return 1;
 310 }
 311
 312 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
 313 {
 314         int sig_nid;
 315         if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;
 316         if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
 317
 318         sig_nid = OBJ_obj2nid(sigalg->algorithm);
 319         if (sig_nid != NID_undef)
 320                 {
 321                 int pkey_nid, dig_nid;
 322                 const EVP_PKEY_ASN1_METHOD *ameth;
 323                 if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid))
 324                         {
 325                         ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
 326                         if (ameth && ameth->sig_print)
 327                                 return ameth->sig_print(bp, sigalg, sig, 9, 0);
 328                         }
 329                 }
 330
 331         return X509_signature_dump(bp, sig, 9);
 332 }
 333
 334 int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
 335         {
 336         int i,n;
 337         char buf[80];
 338         const char *p;
 339
 340         if (v == NULL) return(0);
 341         n=0;
 342         p=(const char *)v->data;
 343         for (i=0; i<v->length; i++)
 344                 {
 345                 if ((p[i] > '~') || ((p[i] < ' ') &&
 346                         (p[i] != '\n') && (p[i] != '\r')))
 347                         buf[n]='.';
 348                 else
 349                         buf[n]=p[i];
 350                 n++;
 351                 if (n >= 80)
 352                         {
 353                         if (BIO_write(bp,buf,n) <= 0)
 354                                 return(0);
 355                         n=0;
 356                         }
 357                 }
 358         if (n > 0)
 359                 if (BIO_write(bp,buf,n) <= 0)
 360                         return(0);
 361         return(1);
 362         }
 363
 364 int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)
 365 {
 366         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
 367         if(tm->type == V_ASN1_GENERALIZEDTIME)
 368                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
 369         BIO_write(bp,"Bad time value",14);
 370         return(0);
 371 }
 372
 373 static const char *mon[12]=
 374     {
 375     "Jan","Feb","Mar","Apr","May","Jun",
 376     "Jul","Aug","Sep","Oct","Nov","Dec"
 377     };
 378
 379 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
 380         {
 381         char *v;
 382         int gmt=0;
 383         int i;
 384         int y=0,M=0,d=0,h=0,m=0,s=0;
 385         char *f = NULL;
 386         int f_len = 0;
 387
 388         i=tm->length;
 389         v=(char *)tm->data;
 390
 391         if (i < 12) goto err;
 392         if (v[i-1] == 'Z') gmt=1;
 393         for (i=0; i<12; i++)
 394                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 395         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
 396         M= (v[4]-'0')*10+(v[5]-'0');
 397         if ((M > 12) || (M < 1)) goto err;
 398         d= (v[6]-'0')*10+(v[7]-'0');
 399         h= (v[8]-'0')*10+(v[9]-'0');
 400         m=  (v[10]-'0')*10+(v[11]-'0');
 401         if (tm->length >= 14 &&
 402             (v[12] >= '0') && (v[12] <= '9') &&
 403             (v[13] >= '0') && (v[13] <= '9'))
 404                 {
 405                 s=  (v[12]-'0')*10+(v[13]-'0');
 406                 /* Check for fractions of seconds. */
 407                 if (tm->length >= 15 && v[14] == '.')
 408                         {
 409                         int l = tm->length;
 410                         f = &v[14];     /* The decimal point. */
 411                         f_len = 1;
 412                         while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
 413                                 ++f_len;
 414                         }
 415                 }
 416
 417         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d%.*s %d%s",
 418                 mon[M-1],d,h,m,s,f_len,f,y,(gmt)?" GMT":"") <= 0)
 419                 return(0);
 420         else
 421                 return(1);
 422 err:
 423         BIO_write(bp,"Bad time value",14);
 424         return(0);
 425         }
 426
 427 int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm)
 428         {
 429         const char *v;
 430         int gmt=0;
 431         int i;
 432         int y=0,M=0,d=0,h=0,m=0,s=0;
 433
 434         i=tm->length;
 435         v=(const char *)tm->data;
 436
 437         if (i < 10) goto err;
 438         if (v[i-1] == 'Z') gmt=1;
 439         for (i=0; i<10; i++)
 440                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 441         y= (v[0]-'0')*10+(v[1]-'0');
 442         if (y < 50) y+=100;
 443         M= (v[2]-'0')*10+(v[3]-'0');
 444         if ((M > 12) || (M < 1)) goto err;
 445         d= (v[4]-'0')*10+(v[5]-'0');
 446         h= (v[6]-'0')*10+(v[7]-'0');
 447         m=  (v[8]-'0')*10+(v[9]-'0');
 448         if (tm->length >=12 &&
 449             (v[10] >= '0') && (v[10] <= '9') &&
 450             (v[11] >= '0') && (v[11] <= '9'))
 451                 s=  (v[10]-'0')*10+(v[11]-'0');
 452
 453         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 454                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
 455                 return(0);
 456         else
 457                 return(1);
 458 err:
 459         BIO_write(bp,"Bad time value",14);
 460         return(0);
 461         }
 462
 463 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
 464         {
 465         char *s,*c,*b;
 466         int ret=0,l,i;
 467
 468         l=80-2-obase;
 469
 470         b=X509_NAME_oneline(name,NULL,0);
 471         if (!*b)
 472                 {
 473                 OPENSSL_free(b);
 474                 return 1;
 475                 }
 476         s=b+1; /* skip the first slash */
 477
 478         c=s;
 479         for (;;)
 480                 {
 481 #ifndef CHARSET_EBCDIC
 482                 if (    ((*s == '/') &&
 483                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
 484                                         (s[2] == '=') ||
 485                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
 486                                         (s[3] == '='))
 487                                  ))) ||
 488                         (*s == '\0'))
 489 #else
 490                 if (    ((*s == '/') &&
 491                                 (isupper(s[1]) && (
 492                                         (s[2] == '=') ||
 493                                         (isupper(s[2]) &&
 494                                         (s[3] == '='))
 495                                  ))) ||
 496                         (*s == '\0'))
 497 #endif
 498                         {
 499                         i=s-c;
 500                         if (BIO_write(bp,c,i) != i) goto err;
 501                         c=s+1;  /* skip following slash */
 502                         if (*s != '\0')
 503                                 {
 504                                 if (BIO_write(bp,", ",2) != 2) goto err;
 505                                 }
 506                         l--;
 507                         }
 508                 if (*s == '\0') break;
 509                 s++;
 510                 l--;
 511                 }
 512
 513         ret=1;
 514         if (0)
 515                 {
 516 err:
 517                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
 518                 }
 519         OPENSSL_free(b);
 520         return(ret);
 521         }