pkey.c revision 312826 
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
68int MAIN(int, char **);
69
70int 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    char *engine = NULL;
83    int ret = 1;
84
85    if (bio_err == NULL)
86        bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
87
88    if (!load_config(bio_err, NULL))
89        goto end;
90
91    informat = FORMAT_PEM;
92    outformat = FORMAT_PEM;
93
94    ERR_load_crypto_strings();
95    OpenSSL_add_all_algorithms();
96    args = argv + 1;
97    while (!badarg && *args && *args[0] == '-') {
98        if (!strcmp(*args, "-inform")) {
99            if (args[1]) {
100                args++;
101                informat = str2fmt(*args);
102            } else
103                badarg = 1;
104        } else if (!strcmp(*args, "-outform")) {
105            if (args[1]) {
106                args++;
107                outformat = str2fmt(*args);
108            } else
109                badarg = 1;
110        } else if (!strcmp(*args, "-passin")) {
111            if (!args[1])
112                goto bad;
113            passargin = *(++args);
114        } else if (!strcmp(*args, "-passout")) {
115            if (!args[1])
116                goto bad;
117            passargout = *(++args);
118        }
119#ifndef OPENSSL_NO_ENGINE
120        else if (strcmp(*args, "-engine") == 0) {
121            if (!args[1])
122                goto bad;
123            engine = *(++args);
124        }
125#endif
126        else if (!strcmp(*args, "-in")) {
127            if (args[1]) {
128                args++;
129                infile = *args;
130            } else
131                badarg = 1;
132        } else if (!strcmp(*args, "-out")) {
133            if (args[1]) {
134                args++;
135                outfile = *args;
136            } else
137                badarg = 1;
138        } else if (strcmp(*args, "-pubin") == 0) {
139            pubin = 1;
140            pubout = 1;
141            pubtext = 1;
142        } else if (strcmp(*args, "-pubout") == 0)
143            pubout = 1;
144        else if (strcmp(*args, "-text_pub") == 0) {
145            pubtext = 1;
146            text = 1;
147        } else if (strcmp(*args, "-text") == 0)
148            text = 1;
149        else if (strcmp(*args, "-noout") == 0)
150            noout = 1;
151        else {
152            cipher = EVP_get_cipherbyname(*args + 1);
153            if (!cipher) {
154                BIO_printf(bio_err, "Unknown cipher %s\n", *args + 1);
155                badarg = 1;
156            }
157        }
158        args++;
159    }
160
161    if (badarg) {
162 bad:
163        BIO_printf(bio_err, "Usage pkey [options]\n");
164        BIO_printf(bio_err, "where options are\n");
165        BIO_printf(bio_err, "-in file        input file\n");
166        BIO_printf(bio_err, "-inform X       input format (DER or PEM)\n");
167        BIO_printf(bio_err,
168                   "-passin arg     input file pass phrase source\n");
169        BIO_printf(bio_err, "-outform X      output format (DER or PEM)\n");
170        BIO_printf(bio_err, "-out file       output file\n");
171        BIO_printf(bio_err,
172                   "-passout arg    output file pass phrase source\n");
173#ifndef OPENSSL_NO_ENGINE
174        BIO_printf(bio_err,
175                   "-engine e       use engine e, possibly a hardware device.\n");
176#endif
177        return 1;
178    }
179    e = setup_engine(bio_err, engine, 0);
180
181    if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
182        BIO_printf(bio_err, "Error getting passwords\n");
183        goto end;
184    }
185
186    if (outfile) {
187        if (!(out = BIO_new_file(outfile, "wb"))) {
188            BIO_printf(bio_err, "Can't open output file %s\n", outfile);
189            goto end;
190        }
191    } else {
192        out = BIO_new_fp(stdout, BIO_NOCLOSE);
193#ifdef OPENSSL_SYS_VMS
194        {
195            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
196            out = BIO_push(tmpbio, out);
197        }
198#endif
199    }
200
201    if (pubin)
202        pkey = load_pubkey(bio_err, infile, informat, 1,
203                           passin, e, "Public Key");
204    else
205        pkey = load_key(bio_err, infile, informat, 1, passin, e, "key");
206    if (!pkey)
207        goto end;
208
209    if (!noout) {
210        if (outformat == FORMAT_PEM) {
211            if (pubout)
212                PEM_write_bio_PUBKEY(out, pkey);
213            else
214                PEM_write_bio_PrivateKey(out, pkey, cipher,
215                                         NULL, 0, NULL, passout);
216        } else if (outformat == FORMAT_ASN1) {
217            if (pubout)
218                i2d_PUBKEY_bio(out, pkey);
219            else
220                i2d_PrivateKey_bio(out, pkey);
221        } else {
222            BIO_printf(bio_err, "Bad format specified for key\n");
223            goto end;
224        }
225
226    }
227
228    if (text) {
229        if (pubtext)
230            EVP_PKEY_print_public(out, pkey, 0, NULL);
231        else
232            EVP_PKEY_print_private(out, pkey, 0, NULL);
233    }
234
235    ret = 0;
236
237 end:
238    EVP_PKEY_free(pkey);
239    release_engine(e);
240    BIO_free_all(out);
241    BIO_free(in);
242    if (passin)
243        OPENSSL_free(passin);
244    if (passout)
245        OPENSSL_free(passout);
246
247    return ret;
248}
249