bin/openssl/pkey.c

   1 /* $OpenBSD: pkey.c,v 1.9 2017/01/20 08:57:12 deraadt Exp $ */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 2006
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include <string.h>
  61
  62 #include "apps.h"
  63
  64 #include <openssl/err.h>
  65 #include <openssl/evp.h>
  66 #include <openssl/pem.h>
  67
  68 int
  69 pkey_main(int argc, char **argv)
  70 {
  71         char **args, *infile = NULL, *outfile = NULL;
  72         char *passargin = NULL, *passargout = NULL;
  73         BIO *in = NULL, *out = NULL;
  74         const EVP_CIPHER *cipher = NULL;
  75         int informat, outformat;
  76         int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0;
  77         EVP_PKEY *pkey = NULL;
  78         char *passin = NULL, *passout = NULL;
  79         int badarg = 0;
  80         int ret = 1;
  81
  82         if (single_execution) {
  83                 if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
  84                         perror("pledge");
  85                         exit(1);
  86                 }
  87         }
  88
  89         informat = FORMAT_PEM;
  90         outformat = FORMAT_PEM;
  91
  92         args = argv + 1;
  93         while (!badarg && *args && *args[0] == '-') {
  94                 if (!strcmp(*args, "-inform")) {
  95                         if (args[1]) {
  96                                 args++;
  97                                 informat = str2fmt(*args);
  98                         } else
  99                                 badarg = 1;
 100                 } else if (!strcmp(*args, "-outform")) {
 101                         if (args[1]) {
 102                                 args++;
 103                                 outformat = str2fmt(*args);
 104                         } else
 105                                 badarg = 1;
 106                 } else if (!strcmp(*args, "-passin")) {
 107                         if (!args[1])
 108                                 goto bad;
 109                         passargin = *(++args);
 110                 } else if (!strcmp(*args, "-passout")) {
 111                         if (!args[1])
 112                                 goto bad;
 113                         passargout = *(++args);
 114                 }
 115                 else if (!strcmp(*args, "-in")) {
 116                         if (args[1]) {
 117                                 args++;
 118                                 infile = *args;
 119                         } else
 120                                 badarg = 1;
 121                 } else if (!strcmp(*args, "-out")) {
 122                         if (args[1]) {
 123                                 args++;
 124                                 outfile = *args;
 125                         } else
 126                                 badarg = 1;
 127                 } else if (strcmp(*args, "-pubin") == 0) {
 128                         pubin = 1;
 129                         pubout = 1;
 130                         pubtext = 1;
 131                 } else if (strcmp(*args, "-pubout") == 0)
 132                         pubout = 1;
 133                 else if (strcmp(*args, "-text_pub") == 0) {
 134                         pubtext = 1;
 135                         text = 1;
 136                 } else if (strcmp(*args, "-text") == 0)
 137                         text = 1;
 138                 else if (strcmp(*args, "-noout") == 0)
 139                         noout = 1;
 140                 else {
 141                         cipher = EVP_get_cipherbyname(*args + 1);
 142                         if (!cipher) {
 143                                 BIO_printf(bio_err, "Unknown cipher %s\n",
 144                                     *args + 1);
 145                                 badarg = 1;
 146                         }
 147                 }
 148                 args++;
 149         }
 150
 151         if (badarg) {
 152 bad:
 153                 BIO_printf(bio_err, "Usage pkey [options]\n");
 154                 BIO_printf(bio_err, "where options are\n");
 155                 BIO_printf(bio_err, "-in file        input file\n");
 156                 BIO_printf(bio_err, "-inform X       input format (DER or PEM)\n");
 157                 BIO_printf(bio_err, "-passin arg     input file pass phrase source\n");
 158                 BIO_printf(bio_err, "-outform X      output format (DER or PEM)\n");
 159                 BIO_printf(bio_err, "-out file       output file\n");
 160                 BIO_printf(bio_err, "-passout arg    output file pass phrase source\n");
 161                 return 1;
 162         }
 163
 164         if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
 165                 BIO_printf(bio_err, "Error getting passwords\n");
 166                 goto end;
 167         }
 168         if (outfile) {
 169                 if (!(out = BIO_new_file(outfile, "wb"))) {
 170                         BIO_printf(bio_err,
 171                             "Can't open output file %s\n", outfile);
 172                         goto end;
 173                 }
 174         } else {
 175                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 176         }
 177
 178         if (pubin)
 179                 pkey = load_pubkey(bio_err, infile, informat, 1,
 180                     passin, "Public Key");
 181         else
 182                 pkey = load_key(bio_err, infile, informat, 1, passin, "key");
 183         if (!pkey)
 184                 goto end;
 185
 186         if (!noout) {
 187                 if (outformat == FORMAT_PEM) {
 188                         if (pubout)
 189                                 PEM_write_bio_PUBKEY(out, pkey);
 190                         else
 191                                 PEM_write_bio_PrivateKey(out, pkey, cipher,
 192                                     NULL, 0, NULL, passout);
 193                 } else if (outformat == FORMAT_ASN1) {
 194                         if (pubout)
 195                                 i2d_PUBKEY_bio(out, pkey);
 196                         else
 197                                 i2d_PrivateKey_bio(out, pkey);
 198                 } else {
 199                         BIO_printf(bio_err, "Bad format specified for key\n");
 200                         goto end;
 201                 }
 202
 203         }
 204         if (text) {
 205                 if (pubtext)
 206                         EVP_PKEY_print_public(out, pkey, 0, NULL);
 207                 else
 208                         EVP_PKEY_print_private(out, pkey, 0, NULL);
 209         }
 210         ret = 0;
 211
 212 end:
 213         EVP_PKEY_free(pkey);
 214         BIO_free_all(out);
 215         BIO_free(in);
 216         free(passin);
 217         free(passout);
 218
 219         return ret;
 220 }