apps/pkcs7.c

   1 /* apps/pkcs7.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 <stdlib.h>
  61 #include <string.h>
  62 #include <time.h>
  63 #include "apps.h"
  64 #include <openssl/err.h>
  65 #include <openssl/objects.h>
  66 #include <openssl/evp.h>
  67 #include <openssl/x509.h>
  68 #include <openssl/pkcs7.h>
  69 #include <openssl/pem.h>
  70
  71 #undef PROG
  72 #define PROG    pkcs7_main
  73
  74 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
  75  * -outform arg - output format - default PEM
  76  * -in arg      - input file - default stdin
  77  * -out arg     - output file - default stdout
  78  * -des         - encrypt output if PEM format with DES in cbc mode
  79  * -des3        - encrypt output if PEM format
  80  * -idea        - encrypt output if PEM format
  81  * -print_certs
  82  */
  83
  84 int MAIN(int argc, char **argv)
  85         {
  86         PKCS7 *p7=NULL;
  87         int i,badops=0;
  88 #if !defined(NO_DES) || !defined(NO_IDEA)
  89         EVP_CIPHER *enc=NULL;
  90 #endif
  91         BIO *in=NULL,*out=NULL;
  92         int informat,outformat;
  93         char *infile,*outfile,*prog,buf[256];
  94         int print_certs=0;
  95         int ret=0;
  96
  97         apps_startup();
  98
  99         if (bio_err == NULL)
 100                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 101                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 102
 103         infile=NULL;
 104         outfile=NULL;
 105         informat=FORMAT_PEM;
 106         outformat=FORMAT_PEM;
 107
 108         prog=argv[0];
 109         argc--;
 110         argv++;
 111         while (argc >= 1)
 112                 {
 113                 if      (strcmp(*argv,"-inform") == 0)
 114                         {
 115                         if (--argc < 1) goto bad;
 116                         informat=str2fmt(*(++argv));
 117                         }
 118                 else if (strcmp(*argv,"-outform") == 0)
 119                         {
 120                         if (--argc < 1) goto bad;
 121                         outformat=str2fmt(*(++argv));
 122                         }
 123                 else if (strcmp(*argv,"-in") == 0)
 124                         {
 125                         if (--argc < 1) goto bad;
 126                         infile= *(++argv);
 127                         }
 128                 else if (strcmp(*argv,"-out") == 0)
 129                         {
 130                         if (--argc < 1) goto bad;
 131                         outfile= *(++argv);
 132                         }
 133                 else if (strcmp(*argv,"-print_certs") == 0)
 134                         print_certs=1;
 135 #ifndef NO_DES
 136                 else if (strcmp(*argv,"-des") == 0)
 137                         enc=EVP_des_cbc();
 138                 else if (strcmp(*argv,"-des3") == 0)
 139                         enc=EVP_des_ede3_cbc();
 140 #endif
 141 #ifndef NO_IDEA
 142                 else if (strcmp(*argv,"-idea") == 0)
 143                         enc=EVP_idea_cbc();
 144 #endif
 145                 else
 146                         {
 147                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 148                         badops=1;
 149                         break;
 150                         }
 151                 argc--;
 152                 argv++;
 153                 }
 154
 155         if (badops)
 156                 {
 157 bad:
 158                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 159                 BIO_printf(bio_err,"where options are\n");
 160                 BIO_printf(bio_err," -inform arg   input format - one of DER TXT PEM\n");
 161                 BIO_printf(bio_err," -outform arg  output format - one of DER TXT PEM\n");
 162                 BIO_printf(bio_err," -in arg       input file\n");
 163                 BIO_printf(bio_err," -out arg      output file\n");
 164                 BIO_printf(bio_err," -print_certs  print any certs or crl in the input\n");
 165                 BIO_printf(bio_err," -des          encrypt PEM output with cbc des\n");
 166                 BIO_printf(bio_err," -des3         encrypt PEM output with ede cbc des using 168 bit key\n");
 167 #ifndef NO_IDEA
 168                 BIO_printf(bio_err," -idea         encrypt PEM output with cbc idea\n");
 169 #endif
 170                 EXIT(1);
 171                 }
 172
 173         ERR_load_crypto_strings();
 174
 175         in=BIO_new(BIO_s_file());
 176         out=BIO_new(BIO_s_file());
 177         if ((in == NULL) || (out == NULL))
 178                 {
 179                 ERR_print_errors(bio_err);
 180                 goto end;
 181                 }
 182
 183         if (infile == NULL)
 184                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 185         else
 186                 {
 187                 if (BIO_read_filename(in,infile) <= 0)
 188                 if (in == NULL)
 189                         {
 190                         perror(infile);
 191                         goto end;
 192                         }
 193                 }
 194
 195         if      (informat == FORMAT_ASN1)
 196                 p7=d2i_PKCS7_bio(in,NULL);
 197         else if (informat == FORMAT_PEM)
 198                 p7=PEM_read_bio_PKCS7(in,NULL,NULL);
 199         else
 200                 {
 201                 BIO_printf(bio_err,"bad input format specified for pkcs7 object\n");
 202                 goto end;
 203                 }
 204         if (p7 == NULL)
 205                 {
 206                 BIO_printf(bio_err,"unable to load PKCS7 object\n");
 207                 ERR_print_errors(bio_err);
 208                 goto end;
 209                 }
 210
 211         if (outfile == NULL)
 212                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 213         else
 214                 {
 215                 if (BIO_write_filename(out,outfile) <= 0)
 216                         {
 217                         perror(outfile);
 218                         goto end;
 219                         }
 220                 }
 221
 222         if (print_certs)
 223                 {
 224                 STACK_OF(X509) *certs=NULL;
 225                 STACK_OF(X509_CRL) *crls=NULL;
 226
 227                 i=OBJ_obj2nid(p7->type);
 228                 switch (i)
 229                         {
 230                 case NID_pkcs7_signed:
 231                         certs=p7->d.sign->cert;
 232                         crls=p7->d.sign->crl;
 233                         break;
 234                 case NID_pkcs7_signedAndEnveloped:
 235                         certs=p7->d.signed_and_enveloped->cert;
 236                         crls=p7->d.signed_and_enveloped->crl;
 237                         break;
 238                 default:
 239                         break;
 240                         }
 241
 242                 if (certs != NULL)
 243                         {
 244                         X509 *x;
 245
 246                         for (i=0; i<sk_X509_num(certs); i++)
 247                                 {
 248                                 x=sk_X509_value(certs,i);
 249
 250                                 X509_NAME_oneline(X509_get_subject_name(x),
 251                                         buf,256);
 252                                 BIO_puts(out,"subject=");
 253                                 BIO_puts(out,buf);
 254
 255                                 X509_NAME_oneline(X509_get_issuer_name(x),
 256                                         buf,256);
 257                                 BIO_puts(out,"\nissuer= ");
 258                                 BIO_puts(out,buf);
 259                                 BIO_puts(out,"\n");
 260
 261                                 PEM_write_bio_X509(out,x);
 262                                 BIO_puts(out,"\n");
 263                                 }
 264                         }
 265                 if (crls != NULL)
 266                         {
 267                         X509_CRL *crl;
 268
 269                         for (i=0; i<sk_X509_CRL_num(crls); i++)
 270                                 {
 271                                 crl=sk_X509_CRL_value(crls,i);
 272
 273                                 X509_NAME_oneline(crl->crl->issuer,buf,256);
 274                                 BIO_puts(out,"issuer= ");
 275                                 BIO_puts(out,buf);
 276
 277                                 BIO_puts(out,"\nlast update=");
 278                                 ASN1_TIME_print(out,crl->crl->lastUpdate);
 279                                 BIO_puts(out,"\nnext update=");
 280                                 ASN1_TIME_print(out,crl->crl->nextUpdate);
 281                                 BIO_puts(out,"\n");
 282
 283                                 PEM_write_bio_X509_CRL(out,crl);
 284                                 BIO_puts(out,"\n");
 285                                 }
 286                         }
 287
 288                 ret=0;
 289                 goto end;
 290                 }
 291
 292         if      (outformat == FORMAT_ASN1)
 293                 i=i2d_PKCS7_bio(out,p7);
 294         else if (outformat == FORMAT_PEM)
 295                 i=PEM_write_bio_PKCS7(out,p7);
 296         else    {
 297                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 298                 goto end;
 299                 }
 300
 301         if (!i)
 302                 {
 303                 BIO_printf(bio_err,"unable to write pkcs7 object\n");
 304                 ERR_print_errors(bio_err);
 305                 goto end;
 306                 }
 307         ret=0;
 308 end:
 309         if (p7 != NULL) PKCS7_free(p7);
 310         if (in != NULL) BIO_free(in);
 311         if (out != NULL) BIO_free(out);
 312         EXIT(ret);
 313         }