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 NO_RSA
  64 #include <openssl/rsa.h>
  65 #endif
  66 #ifndef NO_DSA
  67 #include <openssl/dsa.h>
  68 #endif
  69 #include <openssl/objects.h>
  70 #include <openssl/x509.h>
  71 #include <openssl/x509v3.h>
  72
  73 #ifndef NO_FP_API
  74 int X509_print_fp(FILE *fp, X509 *x)
  75         {
  76         return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  77         }
  78
  79 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
  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);
  90         ret=X509_print_ex(b, x, nmflag, cflag);
  91         BIO_free(b);
  92         return(ret);
  93         }
  94 #endif
  95
  96 int X509_print(BIO *bp, X509 *x)
  97 {
  98         return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  99 }
 100
 101 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
 102         {
 103         long l;
 104         int ret=0,i,j,n;
 105         char *m=NULL,mlch = ' ';
 106         int nmindent = 0;
 107         X509_CINF *ci;
 108         ASN1_INTEGER *bs;
 109         EVP_PKEY *pkey=NULL;
 110         const char *neg;
 111         X509_EXTENSION *ex;
 112         ASN1_STRING *str=NULL;
 113
 114         if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
 115                         mlch = '\n';
 116                         nmindent = 16;
 117         }
 118
 119         if(nmflags == X509_FLAG_COMPAT)
 120                 nmindent = 16;
 121
 122         ci=x->cert_info;
 123         if(!(cflag & X509_FLAG_NO_HEADER))
 124                 {
 125                 if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
 126                 if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
 127                 }
 128         if(!(cflag & X509_FLAG_NO_VERSION))
 129                 {
 130                 l=X509_get_version(x);
 131                 if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
 132                 }
 133         if(!(cflag & X509_FLAG_NO_SERIAL))
 134                 {
 135
 136                 if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
 137
 138                 bs=X509_get_serialNumber(x);
 139                 if (bs->length <= 4)
 140                         {
 141                         l=ASN1_INTEGER_get(bs);
 142                         if (l < 0)
 143                                 {
 144                                 l= -l;
 145                                 neg="-";
 146                                 }
 147                         else
 148                                 neg="";
 149                         if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
 150                                 goto err;
 151                         }
 152                 else
 153                         {
 154                         neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
 155                         if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
 156
 157                         for (i=0; i<bs->length; i++)
 158                                 {
 159                                 if (BIO_printf(bp,"%02x%c",bs->data[i],
 160                                         ((i+1 == bs->length)?'\n':':')) <= 0)
 161                                         goto err;
 162                                 }
 163                         }
 164
 165                 }
 166
 167         if(!(cflag & X509_FLAG_NO_SIGNAME))
 168                 {
 169                 i=OBJ_obj2nid(ci->signature->algorithm);
 170                 if (BIO_printf(bp,"%8sSignature Algorithm: %s\n","",
 171                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 172                         goto err;
 173                 }
 174
 175         if(!(cflag & X509_FLAG_NO_ISSUER))
 176                 {
 177                 if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;
 178                 if (!X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags)) goto err;
 179                 }
 180         if(!(cflag & X509_FLAG_NO_VALIDITY))
 181                 {
 182                 if (BIO_write(bp,"\n        Validity\n",18) <= 0) goto err;
 183                 if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
 184                 if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
 185                 if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
 186                 if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
 187                 if (BIO_write(bp,"\n",1) <= 0) goto err;
 188                 }
 189         if(!(cflag & X509_FLAG_NO_SUBJECT))
 190                 {
 191                 if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;
 192                 if (!X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags)) goto err;
 193                 }
 194         if(!(cflag & X509_FLAG_NO_PUBKEY))
 195                 {
 196                 if (BIO_write(bp,"\n        Subject Public Key Info:\n",34) <= 0)
 197                         goto err;
 198                 i=OBJ_obj2nid(ci->key->algor->algorithm);
 199                 if (BIO_printf(bp,"%12sPublic Key Algorithm: %s\n","",
 200                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
 201
 202                 pkey=X509_get_pubkey(x);
 203                 if (pkey == NULL)
 204                         {
 205                         BIO_printf(bp,"%12sUnable to load Public Key\n","");
 206                         ERR_print_errors(bp);
 207                         }
 208                 else
 209 #ifndef NO_RSA
 210                 if (pkey->type == EVP_PKEY_RSA)
 211                         {
 212                         BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
 213                         BN_num_bits(pkey->pkey.rsa->n));
 214                         RSA_print(bp,pkey->pkey.rsa,16);
 215                         }
 216                 else
 217 #endif
 218 #ifndef NO_DSA
 219                 if (pkey->type == EVP_PKEY_DSA)
 220                         {
 221                         BIO_printf(bp,"%12sDSA Public Key:\n","");
 222                         DSA_print(bp,pkey->pkey.dsa,16);
 223                         }
 224                 else
 225 #endif
 226                         BIO_printf(bp,"%12sUnknown Public Key:\n","");
 227
 228                 EVP_PKEY_free(pkey);
 229                 }
 230
 231         if (cflag & X509_FLAG_NO_EXTENSIONS)
 232                 n = 0;
 233         else
 234                 n=X509_get_ext_count(x);
 235         if (n > 0)
 236                 {
 237                 BIO_printf(bp,"%8sX509v3 extensions:\n","");
 238                 for (i=0; i<n; i++)
 239                         {
 240                         ASN1_OBJECT *obj;
 241                         ex=X509_get_ext(x,i);
 242                         if (BIO_printf(bp,"%12s","") <= 0) goto err;
 243                         obj=X509_EXTENSION_get_object(ex);
 244                         i2a_ASN1_OBJECT(bp,obj);
 245                         j=X509_EXTENSION_get_critical(ex);
 246                         if (BIO_printf(bp,": %s\n",j?"critical":"","") <= 0)
 247                                 goto err;
 248                         if(!X509V3_EXT_print(bp, ex, cflag, 16))
 249                                 {
 250                                 BIO_printf(bp, "%16s", "");
 251                                 M_ASN1_OCTET_STRING_print(bp,ex->value);
 252                                 }
 253                         if (BIO_write(bp,"\n",1) <= 0) goto err;
 254                         }
 255                 }
 256
 257         if(!(cflag & X509_FLAG_NO_SIGDUMP))
 258                 {
 259                 if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;
 260                 }
 261         if(!(cflag & X509_FLAG_NO_AUX))
 262                 {
 263                 if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
 264                 }
 265         ret=1;
 266 err:
 267         if (str != NULL) ASN1_STRING_free(str);
 268         if (m != NULL) OPENSSL_free(m);
 269         return(ret);
 270         }
 271
 272 int X509_ocspid_print (BIO *bp, X509 *x)
 273         {
 274         unsigned char *der=NULL ;
 275         unsigned char *dertmp;
 276         int derlen;
 277         int i;
 278         SHA_CTX SHA1buf ;
 279         unsigned char SHA1md[SHA_DIGEST_LENGTH];
 280
 281         /* display the hash of the subject as it would appear
 282            in OCSP requests */
 283         if (BIO_printf(bp,"        Subject OCSP hash: ") <= 0)
 284                 goto err;
 285         derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
 286         if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)
 287                 goto err;
 288         i2d_X509_NAME(x->cert_info->subject, &dertmp);
 289
 290         SHA1_Init(&SHA1buf);
 291         SHA1_Update(&SHA1buf, der, derlen);
 292         SHA1_Final(SHA1md,&SHA1buf);
 293         for (i=0; i < SHA_DIGEST_LENGTH; i++)
 294                 {
 295                 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;
 296                 }
 297         OPENSSL_free (der);
 298         der=NULL;
 299
 300         /* display the hash of the public key as it would appear
 301            in OCSP requests */
 302         if (BIO_printf(bp,"\n        Public key OCSP hash: ") <= 0)
 303                 goto err;
 304
 305         SHA1_Init(&SHA1buf);
 306         SHA1_Update(&SHA1buf, x->cert_info->key->public_key->data,
 307                 x->cert_info->key->public_key->length);
 308         SHA1_Final(SHA1md,&SHA1buf);
 309         for (i=0; i < SHA_DIGEST_LENGTH; i++)
 310                 {
 311                 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)
 312                         goto err;
 313                 }
 314         BIO_printf(bp,"\n");
 315
 316         return (1);
 317 err:
 318         if (der != NULL) OPENSSL_free(der);
 319         return(0);
 320         }
 321
 322 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
 323 {
 324         unsigned char *s;
 325         int i, n;
 326         if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;
 327         if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
 328
 329         n=sig->length;
 330         s=sig->data;
 331         for (i=0; i<n; i++)
 332                 {
 333                 if ((i%18) == 0)
 334                         if (BIO_write(bp,"\n        ",9) <= 0) return 0;
 335                         if (BIO_printf(bp,"%02x%s",s[i],
 336                                 ((i+1) == n)?"":":") <= 0) return 0;
 337                 }
 338         if (BIO_write(bp,"\n",1) != 1) return 0;
 339         return 1;
 340 }
 341
 342 int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
 343         {
 344         int i,n;
 345         char buf[80],*p;;
 346
 347         if (v == NULL) return(0);
 348         n=0;
 349         p=(char *)v->data;
 350         for (i=0; i<v->length; i++)
 351                 {
 352                 if ((p[i] > '~') || ((p[i] < ' ') &&
 353                         (p[i] != '\n') && (p[i] != '\r')))
 354                         buf[n]='.';
 355                 else
 356                         buf[n]=p[i];
 357                 n++;
 358                 if (n >= 80)
 359                         {
 360                         if (BIO_write(bp,buf,n) <= 0)
 361                                 return(0);
 362                         n=0;
 363                         }
 364                 }
 365         if (n > 0)
 366                 if (BIO_write(bp,buf,n) <= 0)
 367                         return(0);
 368         return(1);
 369         }
 370
 371 int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
 372 {
 373         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
 374         if(tm->type == V_ASN1_GENERALIZEDTIME)
 375                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
 376         BIO_write(bp,"Bad time value",14);
 377         return(0);
 378 }
 379
 380 static const char *mon[12]=
 381     {
 382     "Jan","Feb","Mar","Apr","May","Jun",
 383     "Jul","Aug","Sep","Oct","Nov","Dec"
 384     };
 385
 386 int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
 387         {
 388         char *v;
 389         int gmt=0;
 390         int i;
 391         int y=0,M=0,d=0,h=0,m=0,s=0;
 392
 393         i=tm->length;
 394         v=(char *)tm->data;
 395
 396         if (i < 12) goto err;
 397         if (v[i-1] == 'Z') gmt=1;
 398         for (i=0; i<12; i++)
 399                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 400         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
 401         M= (v[4]-'0')*10+(v[5]-'0');
 402         if ((M > 12) || (M < 1)) goto err;
 403         d= (v[6]-'0')*10+(v[7]-'0');
 404         h= (v[8]-'0')*10+(v[9]-'0');
 405         m=  (v[10]-'0')*10+(v[11]-'0');
 406         if (    (v[12] >= '0') && (v[12] <= '9') &&
 407                 (v[13] >= '0') && (v[13] <= '9'))
 408                 s=  (v[12]-'0')*10+(v[13]-'0');
 409
 410         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 411                 mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
 412                 return(0);
 413         else
 414                 return(1);
 415 err:
 416         BIO_write(bp,"Bad time value",14);
 417         return(0);
 418         }
 419
 420 int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
 421         {
 422         char *v;
 423         int gmt=0;
 424         int i;
 425         int y=0,M=0,d=0,h=0,m=0,s=0;
 426
 427         i=tm->length;
 428         v=(char *)tm->data;
 429
 430         if (i < 10) goto err;
 431         if (v[i-1] == 'Z') gmt=1;
 432         for (i=0; i<10; i++)
 433                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 434         y= (v[0]-'0')*10+(v[1]-'0');
 435         if (y < 50) y+=100;
 436         M= (v[2]-'0')*10+(v[3]-'0');
 437         if ((M > 12) || (M < 1)) goto err;
 438         d= (v[4]-'0')*10+(v[5]-'0');
 439         h= (v[6]-'0')*10+(v[7]-'0');
 440         m=  (v[8]-'0')*10+(v[9]-'0');
 441         if (    (v[10] >= '0') && (v[10] <= '9') &&
 442                 (v[11] >= '0') && (v[11] <= '9'))
 443                 s=  (v[10]-'0')*10+(v[11]-'0');
 444
 445         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 446                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
 447                 return(0);
 448         else
 449                 return(1);
 450 err:
 451         BIO_write(bp,"Bad time value",14);
 452         return(0);
 453         }
 454
 455 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
 456         {
 457         char *s,*c;
 458         int ret=0,l,ll,i,first=1;
 459         char buf[256];
 460
 461         ll=80-2-obase;
 462
 463         s=X509_NAME_oneline(name,buf,256);
 464         s++; /* skip the first slash */
 465
 466         l=ll;
 467         c=s;
 468         for (;;)
 469                 {
 470 #ifndef CHARSET_EBCDIC
 471                 if (    ((*s == '/') &&
 472                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
 473                                         (s[2] == '=') ||
 474                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
 475                                         (s[3] == '='))
 476                                  ))) ||
 477                         (*s == '\0'))
 478 #else
 479                 if (    ((*s == '/') &&
 480                                 (isupper(s[1]) && (
 481                                         (s[2] == '=') ||
 482                                         (isupper(s[2]) &&
 483                                         (s[3] == '='))
 484                                  ))) ||
 485                         (*s == '\0'))
 486 #endif
 487                         {
 488                         if ((l <= 0) && !first)
 489                                 {
 490                                 first=0;
 491                                 if (BIO_write(bp,"\n",1) != 1) goto err;
 492                                 for (i=0; i<obase; i++)
 493                                         {
 494                                         if (BIO_write(bp," ",1) != 1) goto err;
 495                                         }
 496                                 l=ll;
 497                                 }
 498                         i=s-c;
 499                         if (BIO_write(bp,c,i) != i) goto err;
 500                         c+=i;
 501                         c++;
 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         return(ret);
 520         }
 521