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      1 /* apps/pkey.c */
      2 /* Written by Dr Stephen N Henson (steve (at) 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 (at) 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 (at) cryptsoft.com).  This product includes software written by Tim
     55  * Hudson (tjh (at) cryptsoft.com).
     56  *
     57  */
     58 #include <stdio.h>
     59 #include <string.h>
     60 #include "apps.h"
     61 #include <openssl/pem.h>
     62 #include <openssl/err.h>
     63 #include <openssl/evp.h>
     64 
     65 #define PROG pkey_main
     66 
     67 int MAIN(int, char **);
     68 
     69 int MAIN(int argc, char **argv)
     70 	{
     71 	ENGINE *e = NULL;
     72 	char **args, *infile = NULL, *outfile = NULL;
     73 	char *passargin = NULL, *passargout = NULL;
     74 	BIO *in = NULL, *out = NULL;
     75 	const EVP_CIPHER *cipher = NULL;
     76 	int informat, outformat;
     77 	int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0;
     78 	EVP_PKEY *pkey=NULL;
     79 	char *passin = NULL, *passout = NULL;
     80 	int badarg = 0;
     81 #ifndef OPENSSL_NO_ENGINE
     82 	char *engine=NULL;
     83 #endif
     84 	int ret = 1;
     85 
     86 	if (bio_err == NULL)
     87 		bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);
     88 
     89 	if (!load_config(bio_err, NULL))
     90 		goto end;
     91 
     92 	informat=FORMAT_PEM;
     93 	outformat=FORMAT_PEM;
     94 
     95 	ERR_load_crypto_strings();
     96 	OpenSSL_add_all_algorithms();
     97 	args = argv + 1;
     98 	while (!badarg && *args && *args[0] == '-')
     99 		{
    100 		if (!strcmp(*args,"-inform"))
    101 			{
    102 			if (args[1])
    103 				{
    104 				args++;
    105 				informat=str2fmt(*args);
    106 				}
    107 			else badarg = 1;
    108 			}
    109 		else if (!strcmp(*args,"-outform"))
    110 			{
    111 			if (args[1])
    112 				{
    113 				args++;
    114 				outformat=str2fmt(*args);
    115 				}
    116 			else badarg = 1;
    117 			}
    118 		else if (!strcmp(*args,"-passin"))
    119 			{
    120 			if (!args[1]) goto bad;
    121 			passargin= *(++args);
    122 			}
    123 		else if (!strcmp(*args,"-passout"))
    124 			{
    125 			if (!args[1]) goto bad;
    126 			passargout= *(++args);
    127 			}
    128 #ifndef OPENSSL_NO_ENGINE
    129 		else if (strcmp(*args,"-engine") == 0)
    130 			{
    131 			if (!args[1]) goto bad;
    132 			engine= *(++args);
    133 			}
    134 #endif
    135 		else if (!strcmp (*args, "-in"))
    136 			{
    137 			if (args[1])
    138 				{
    139 				args++;
    140 				infile = *args;
    141 				}
    142 			else badarg = 1;
    143 			}
    144 		else if (!strcmp (*args, "-out"))
    145 			{
    146 			if (args[1])
    147 				{
    148 				args++;
    149 				outfile = *args;
    150 				}
    151 			else badarg = 1;
    152 			}
    153 		else if (strcmp(*args,"-pubin") == 0)
    154 			{
    155 			pubin=1;
    156 			pubout=1;
    157 			pubtext=1;
    158 			}
    159 		else if (strcmp(*args,"-pubout") == 0)
    160 			pubout=1;
    161 		else if (strcmp(*args,"-text_pub") == 0)
    162 			{
    163 			pubtext=1;
    164 			text=1;
    165 			}
    166 		else if (strcmp(*args,"-text") == 0)
    167 			text=1;
    168 		else if (strcmp(*args,"-noout") == 0)
    169 			noout=1;
    170 		else
    171 			{
    172 			cipher = EVP_get_cipherbyname(*args + 1);
    173 			if (!cipher)
    174 				{
    175 				BIO_printf(bio_err, "Unknown cipher %s\n",
    176 								*args + 1);
    177 				badarg = 1;
    178 				}
    179 			}
    180 		args++;
    181 		}
    182 
    183 	if (badarg)
    184 		{
    185 		bad:
    186 		BIO_printf(bio_err, "Usage pkey [options]\n");
    187 		BIO_printf(bio_err, "where options are\n");
    188 		BIO_printf(bio_err, "-in file        input file\n");
    189 		BIO_printf(bio_err, "-inform X       input format (DER or PEM)\n");
    190 		BIO_printf(bio_err, "-passin arg     input file pass phrase source\n");
    191 		BIO_printf(bio_err, "-outform X      output format (DER or PEM)\n");
    192 		BIO_printf(bio_err, "-out file       output file\n");
    193 		BIO_printf(bio_err, "-passout arg    output file pass phrase source\n");
    194 #ifndef OPENSSL_NO_ENGINE
    195 		BIO_printf(bio_err, "-engine e       use engine e, possibly a hardware device.\n");
    196 #endif
    197 		return 1;
    198 		}
    199 
    200 #ifndef OPENSSL_NO_ENGINE
    201         e = setup_engine(bio_err, engine, 0);
    202 #endif
    203 
    204 	if (!app_passwd(bio_err, passargin, passargout, &passin, &passout))
    205 		{
    206 		BIO_printf(bio_err, "Error getting passwords\n");
    207 		goto end;
    208 		}
    209 
    210 	if (outfile)
    211 		{
    212 		if (!(out = BIO_new_file (outfile, "wb")))
    213 			{
    214 			BIO_printf(bio_err,
    215 				 "Can't open output file %s\n", outfile);
    216 			goto end;
    217 			}
    218 		}
    219 	else
    220 		{
    221 		out = BIO_new_fp (stdout, BIO_NOCLOSE);
    222 #ifdef OPENSSL_SYS_VMS
    223 			{
    224 			BIO *tmpbio = BIO_new(BIO_f_linebuffer());
    225 			out = BIO_push(tmpbio, out);
    226 			}
    227 #endif
    228 		}
    229 
    230 	if (pubin)
    231 		pkey = load_pubkey(bio_err, infile, informat, 1,
    232 			passin, e, "Public Key");
    233 	else
    234 		pkey = load_key(bio_err, infile, informat, 1,
    235 			passin, e, "key");
    236 	if (!pkey)
    237 		goto end;
    238 
    239 	if (!noout)
    240 		{
    241 		if (outformat == FORMAT_PEM)
    242 			{
    243 			if (pubout)
    244 				PEM_write_bio_PUBKEY(out,pkey);
    245 			else
    246 				PEM_write_bio_PrivateKey(out, pkey, cipher,
    247 							NULL, 0, NULL, passout);
    248 			}
    249 		else if (outformat == FORMAT_ASN1)
    250 			{
    251 			if (pubout)
    252 				i2d_PUBKEY_bio(out, pkey);
    253 			else
    254 				i2d_PrivateKey_bio(out, pkey);
    255 			}
    256 		else
    257 			{
    258 			BIO_printf(bio_err, "Bad format specified for key\n");
    259 			goto end;
    260 			}
    261 
    262 		}
    263 
    264 	if (text)
    265 		{
    266 		if (pubtext)
    267 			EVP_PKEY_print_public(out, pkey, 0, NULL);
    268 		else
    269 			EVP_PKEY_print_private(out, pkey, 0, NULL);
    270 		}
    271 
    272 	ret = 0;
    273 
    274 	end:
    275 	EVP_PKEY_free(pkey);
    276 	BIO_free_all(out);
    277 	BIO_free(in);
    278 	if (passin)
    279 		OPENSSL_free(passin);
    280 	if (passout)
    281 		OPENSSL_free(passout);
    282 
    283 	return ret;
    284 	}
    285