apps/pkey.c

   1 /* apps/pkey.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   4  * 2006
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. All advertising materials mentioning features or use of this
  22  *    software must display the following acknowledgment:
  23  *    "This product includes software developed by the OpenSSL Project
  24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25  *
  26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27  *    endorse or promote products derived from this software without
  28  *    prior written permission. For written permission, please contact
  29  *    licensing@OpenSSL.org.
  30  *
  31  * 5. Products derived from this software may not be called "OpenSSL"
  32  *    nor may "OpenSSL" appear in their names without prior written
  33  *    permission of the OpenSSL Project.
  34  *
  35  * 6. Redistributions of any form whatsoever must retain the following
  36  *    acknowledgment:
  37  *    "This product includes software developed by the OpenSSL Project
  38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51  * OF THE POSSIBILITY OF SUCH DAMAGE.
  52  * ====================================================================
  53  *
  54  * This product includes cryptographic software written by Eric Young
  55  * (eay@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59 #include <stdio.h>
  60 #include <string.h>
  61 #include "apps.h"
  62 #include <openssl/pem.h>
  63 #include <openssl/err.h>
  64 #include <openssl/evp.h>
  65
  66 #define PROG pkey_main
  67
  68 int MAIN(int, char **);
  69
  70 int MAIN(int argc, char **argv)
  71 {
  72     ENGINE *e = NULL;
  73     char **args, *infile = NULL, *outfile = NULL;
  74     char *passargin = NULL, *passargout = NULL;
  75     BIO *in = NULL, *out = NULL;
  76     const EVP_CIPHER *cipher = NULL;
  77     int informat, outformat;
  78     int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0;
  79     EVP_PKEY *pkey = NULL;
  80     char *passin = NULL, *passout = NULL;
  81     int badarg = 0;
  82 #ifndef OPENSSL_NO_ENGINE
  83     char *engine = NULL;
  84 #endif
  85     int ret = 1;
  86
  87     if (bio_err == NULL)
  88         bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
  89
  90     if (!load_config(bio_err, NULL))
  91         goto end;
  92
  93     informat = FORMAT_PEM;
  94     outformat = FORMAT_PEM;
  95
  96     ERR_load_crypto_strings();
  97     OpenSSL_add_all_algorithms();
  98     args = argv + 1;
  99     while (!badarg && *args && *args[0] == '-') {
 100         if (!strcmp(*args, "-inform")) {
 101             if (args[1]) {
 102                 args++;
 103                 informat = str2fmt(*args);
 104             } else
 105                 badarg = 1;
 106         } else if (!strcmp(*args, "-outform")) {
 107             if (args[1]) {
 108                 args++;
 109                 outformat = str2fmt(*args);
 110             } else
 111                 badarg = 1;
 112         } else if (!strcmp(*args, "-passin")) {
 113             if (!args[1])
 114                 goto bad;
 115             passargin = *(++args);
 116         } else if (!strcmp(*args, "-passout")) {
 117             if (!args[1])
 118                 goto bad;
 119             passargout = *(++args);
 120         }
 121 #ifndef OPENSSL_NO_ENGINE
 122         else if (strcmp(*args, "-engine") == 0) {
 123             if (!args[1])
 124                 goto bad;
 125             engine = *(++args);
 126         }
 127 #endif
 128         else if (!strcmp(*args, "-in")) {
 129             if (args[1]) {
 130                 args++;
 131                 infile = *args;
 132             } else
 133                 badarg = 1;
 134         } else if (!strcmp(*args, "-out")) {
 135             if (args[1]) {
 136                 args++;
 137                 outfile = *args;
 138             } else
 139                 badarg = 1;
 140         } else if (strcmp(*args, "-pubin") == 0) {
 141             pubin = 1;
 142             pubout = 1;
 143             pubtext = 1;
 144         } else if (strcmp(*args, "-pubout") == 0)
 145             pubout = 1;
 146         else if (strcmp(*args, "-text_pub") == 0) {
 147             pubtext = 1;
 148             text = 1;
 149         } else if (strcmp(*args, "-text") == 0)
 150             text = 1;
 151         else if (strcmp(*args, "-noout") == 0)
 152             noout = 1;
 153         else {
 154             cipher = EVP_get_cipherbyname(*args + 1);
 155             if (!cipher) {
 156                 BIO_printf(bio_err, "Unknown cipher %s\n", *args + 1);
 157                 badarg = 1;
 158             }
 159         }
 160         args++;
 161     }
 162
 163     if (badarg) {
 164  bad:
 165         BIO_printf(bio_err, "Usage pkey [options]\n");
 166         BIO_printf(bio_err, "where options are\n");
 167         BIO_printf(bio_err, "-in file        input file\n");
 168         BIO_printf(bio_err, "-inform X       input format (DER or PEM)\n");
 169         BIO_printf(bio_err,
 170                    "-passin arg     input file pass phrase source\n");
 171         BIO_printf(bio_err, "-outform X      output format (DER or PEM)\n");
 172         BIO_printf(bio_err, "-out file       output file\n");
 173         BIO_printf(bio_err,
 174                    "-passout arg    output file pass phrase source\n");
 175 #ifndef OPENSSL_NO_ENGINE
 176         BIO_printf(bio_err,
 177                    "-engine e       use engine e, possibly a hardware device.\n");
 178 #endif
 179         return 1;
 180     }
 181 #ifndef OPENSSL_NO_ENGINE
 182     e = setup_engine(bio_err, engine, 0);
 183 #endif
 184
 185     if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
 186         BIO_printf(bio_err, "Error getting passwords\n");
 187         goto end;
 188     }
 189
 190     if (outfile) {
 191         if (!(out = BIO_new_file(outfile, "wb"))) {
 192             BIO_printf(bio_err, "Can't open output file %s\n", outfile);
 193             goto end;
 194         }
 195     } else {
 196         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 197 #ifdef OPENSSL_SYS_VMS
 198         {
 199             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 200             out = BIO_push(tmpbio, out);
 201         }
 202 #endif
 203     }
 204
 205     if (pubin)
 206         pkey = load_pubkey(bio_err, infile, informat, 1,
 207                            passin, e, "Public Key");
 208     else
 209         pkey = load_key(bio_err, infile, informat, 1, passin, e, "key");
 210     if (!pkey)
 211         goto end;
 212
 213     if (!noout) {
 214         if (outformat == FORMAT_PEM) {
 215             if (pubout)
 216                 PEM_write_bio_PUBKEY(out, pkey);
 217             else
 218                 PEM_write_bio_PrivateKey(out, pkey, cipher,
 219                                          NULL, 0, NULL, passout);
 220         } else if (outformat == FORMAT_ASN1) {
 221             if (pubout)
 222                 i2d_PUBKEY_bio(out, pkey);
 223             else
 224                 i2d_PrivateKey_bio(out, pkey);
 225         } else {
 226             BIO_printf(bio_err, "Bad format specified for key\n");
 227             goto end;
 228         }
 229
 230     }
 231
 232     if (text) {
 233         if (pubtext)
 234             EVP_PKEY_print_public(out, pkey, 0, NULL);
 235         else
 236             EVP_PKEY_print_private(out, pkey, 0, NULL);
 237     }
 238
 239     ret = 0;
 240
 241  end:
 242     EVP_PKEY_free(pkey);
 243     BIO_free_all(out);
 244     BIO_free(in);
 245     if (passin)
 246         OPENSSL_free(passin);
 247     if (passout)
 248         OPENSSL_free(passout);
 249
 250     return ret;
 251 }