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/* $OpenBSD: genpkey.c,v 1.9 2017/01/20 08:57:12 deraadt Exp $ */ |
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
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* project 2006 |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 2006 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <stdio.h> |
60 |
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#include <string.h> |
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#include "apps.h" |
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64 |
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#include <openssl/err.h> |
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#include <openssl/evp.h> |
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#include <openssl/pem.h> |
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68 |
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static int |
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init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx, const char *file); |
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static int genpkey_cb(EVP_PKEY_CTX * ctx); |
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int |
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genpkey_main(int argc, char **argv) |
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{ |
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char **args, *outfile = NULL; |
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char *passarg = NULL; |
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BIO *in = NULL, *out = NULL; |
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const EVP_CIPHER *cipher = NULL; |
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int outformat; |
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int text = 0; |
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EVP_PKEY *pkey = NULL; |
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EVP_PKEY_CTX *ctx = NULL; |
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char *pass = NULL; |
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int badarg = 0; |
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int ret = 1, rv; |
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int do_param = 0; |
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|
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✓✗ |
64 |
if (single_execution) { |
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✗✓ |
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if (pledge("stdio cpath wpath rpath tty flock", NULL) == -1) { |
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perror("pledge"); |
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exit(1); |
93 |
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} |
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} |
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outformat = FORMAT_PEM; |
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|
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args = argv + 1; |
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✓✓✓✓ ✓✗ |
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while (!badarg && *args && *args[0] == '-') { |
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✗✓ |
184 |
if (!strcmp(*args, "-outform")) { |
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if (args[1]) { |
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args++; |
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outformat = str2fmt(*args); |
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} else |
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badarg = 1; |
106 |
✗✓ |
184 |
} else if (!strcmp(*args, "-pass")) { |
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if (!args[1]) |
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goto bad; |
109 |
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passarg = *(++args); |
110 |
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} |
111 |
✓✓ |
184 |
else if (!strcmp(*args, "-paramfile")) { |
112 |
✓✗ |
24 |
if (!args[1]) |
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goto bad; |
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args++; |
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✓✗ |
24 |
if (do_param == 1) |
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goto bad; |
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✓✗ |
24 |
if (!init_keygen_file(bio_err, &ctx, *args)) |
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goto end; |
119 |
✓✓ |
160 |
} else if (!strcmp(*args, "-out")) { |
120 |
✓✗ |
56 |
if (args[1]) { |
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args++; |
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outfile = *args; |
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} else |
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badarg = 1; |
125 |
✓✓ |
104 |
} else if (strcmp(*args, "-algorithm") == 0) { |
126 |
✓✗ |
32 |
if (!args[1]) |
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goto bad; |
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✓✗ |
32 |
if (!init_gen_str(bio_err, &ctx, *(++args), do_param)) |
129 |
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goto end; |
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✓✓ |
72 |
} else if (strcmp(*args, "-pkeyopt") == 0) { |
131 |
✓✗ |
40 |
if (!args[1]) |
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goto bad; |
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✗✓ |
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if (!ctx) { |
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BIO_puts(bio_err, "No keytype specified\n"); |
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goto bad; |
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✗✓ |
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} else if (pkey_ctrl_string(ctx, *(++args)) <= 0) { |
137 |
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BIO_puts(bio_err, "parameter setting error\n"); |
138 |
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ERR_print_errors(bio_err); |
139 |
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goto end; |
140 |
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} |
141 |
✓✓ |
32 |
} else if (strcmp(*args, "-genparam") == 0) { |
142 |
✓✗ |
24 |
if (ctx) |
143 |
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goto bad; |
144 |
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do_param = 1; |
145 |
✗✓ |
32 |
} else if (strcmp(*args, "-text") == 0) |
146 |
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text = 1; |
147 |
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else { |
148 |
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8 |
cipher = EVP_get_cipherbyname(*args + 1); |
149 |
✓✗ |
8 |
if (!cipher) { |
150 |
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16 |
BIO_printf(bio_err, "Unknown cipher %s\n", |
151 |
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8 |
*args + 1); |
152 |
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badarg = 1; |
153 |
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8 |
} |
154 |
✗✓ |
8 |
if (do_param == 1) |
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badarg = 1; |
156 |
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} |
157 |
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184 |
args++; |
158 |
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} |
159 |
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160 |
✓✓ |
64 |
if (!ctx) |
161 |
|
8 |
badarg = 1; |
162 |
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163 |
✓✓ |
64 |
if (badarg) { |
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bad: |
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|
8 |
BIO_printf(bio_err, "Usage: genpkey [options]\n"); |
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BIO_printf(bio_err, "where options may be\n"); |
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BIO_printf(bio_err, "-out file output file\n"); |
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BIO_printf(bio_err, "-outform X output format (DER or PEM)\n"); |
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BIO_printf(bio_err, "-pass arg output file pass phrase source\n"); |
170 |
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BIO_printf(bio_err, "-<cipher> use cipher <cipher> to encrypt the key\n"); |
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BIO_printf(bio_err, "-paramfile file parameters file\n"); |
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BIO_printf(bio_err, "-algorithm alg the public key algorithm\n"); |
173 |
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BIO_printf(bio_err, "-pkeyopt opt:value set the public key algorithm option <opt>\n" |
174 |
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" to value <value>\n"); |
175 |
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8 |
BIO_printf(bio_err, "-genparam generate parameters, not key\n"); |
176 |
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8 |
BIO_printf(bio_err, "-text print the in text\n"); |
177 |
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8 |
BIO_printf(bio_err, "NB: options order may be important! See the manual page.\n"); |
178 |
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8 |
goto end; |
179 |
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} |
180 |
✗✓ |
56 |
if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { |
181 |
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BIO_puts(bio_err, "Error getting password\n"); |
182 |
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goto end; |
183 |
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} |
184 |
✓✗ |
56 |
if (outfile) { |
185 |
✗✓ |
56 |
if (!(out = BIO_new_file(outfile, "wb"))) { |
186 |
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BIO_printf(bio_err, |
187 |
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"Can't open output file %s\n", outfile); |
188 |
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goto end; |
189 |
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} |
190 |
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} else { |
191 |
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out = BIO_new_fp(stdout, BIO_NOCLOSE); |
192 |
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} |
193 |
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194 |
|
56 |
EVP_PKEY_CTX_set_cb(ctx, genpkey_cb); |
195 |
|
56 |
EVP_PKEY_CTX_set_app_data(ctx, bio_err); |
196 |
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|
197 |
✓✓ |
56 |
if (do_param) { |
198 |
✗✓ |
24 |
if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) { |
199 |
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BIO_puts(bio_err, "Error generating parameters\n"); |
200 |
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ERR_print_errors(bio_err); |
201 |
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goto end; |
202 |
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} |
203 |
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} else { |
204 |
✗✓ |
32 |
if (EVP_PKEY_keygen(ctx, &pkey) <= 0) { |
205 |
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|
BIO_puts(bio_err, "Error generating key\n"); |
206 |
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|
ERR_print_errors(bio_err); |
207 |
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|
goto end; |
208 |
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|
} |
209 |
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|
} |
210 |
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|
211 |
✓✓ |
56 |
if (do_param) |
212 |
|
24 |
rv = PEM_write_bio_Parameters(out, pkey); |
213 |
✓✗ |
32 |
else if (outformat == FORMAT_PEM) |
214 |
|
64 |
rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0, |
215 |
|
32 |
NULL, pass); |
216 |
|
|
else if (outformat == FORMAT_ASN1) |
217 |
|
|
rv = i2d_PrivateKey_bio(out, pkey); |
218 |
|
|
else { |
219 |
|
|
BIO_printf(bio_err, "Bad format specified for key\n"); |
220 |
|
|
goto end; |
221 |
|
|
} |
222 |
|
|
|
223 |
✗✓ |
56 |
if (rv <= 0) { |
224 |
|
|
BIO_puts(bio_err, "Error writing key\n"); |
225 |
|
|
ERR_print_errors(bio_err); |
226 |
|
|
} |
227 |
✗✓ |
56 |
if (text) { |
228 |
|
|
if (do_param) |
229 |
|
|
rv = EVP_PKEY_print_params(out, pkey, 0, NULL); |
230 |
|
|
else |
231 |
|
|
rv = EVP_PKEY_print_private(out, pkey, 0, NULL); |
232 |
|
|
|
233 |
|
|
if (rv <= 0) { |
234 |
|
|
BIO_puts(bio_err, "Error printing key\n"); |
235 |
|
|
ERR_print_errors(bio_err); |
236 |
|
|
} |
237 |
|
|
} |
238 |
|
56 |
ret = 0; |
239 |
|
|
|
240 |
|
|
end: |
241 |
✓✓ |
64 |
if (pkey) |
242 |
|
56 |
EVP_PKEY_free(pkey); |
243 |
✓✓ |
64 |
if (ctx) |
244 |
|
56 |
EVP_PKEY_CTX_free(ctx); |
245 |
✓✓ |
64 |
if (out) |
246 |
|
56 |
BIO_free_all(out); |
247 |
|
64 |
BIO_free(in); |
248 |
|
64 |
free(pass); |
249 |
|
|
|
250 |
|
64 |
return ret; |
251 |
|
64 |
} |
252 |
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|
253 |
|
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static int |
254 |
|
|
init_keygen_file(BIO * err, EVP_PKEY_CTX ** pctx, |
255 |
|
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const char *file) |
256 |
|
|
{ |
257 |
|
|
BIO *pbio; |
258 |
|
|
EVP_PKEY *pkey = NULL; |
259 |
|
|
EVP_PKEY_CTX *ctx = NULL; |
260 |
✗✓ |
48 |
if (*pctx) { |
261 |
|
|
BIO_puts(err, "Parameters already set!\n"); |
262 |
|
|
return 0; |
263 |
|
|
} |
264 |
|
24 |
pbio = BIO_new_file(file, "r"); |
265 |
✗✓ |
24 |
if (!pbio) { |
266 |
|
|
BIO_printf(err, "Can't open parameter file %s\n", file); |
267 |
|
|
return 0; |
268 |
|
|
} |
269 |
|
24 |
pkey = PEM_read_bio_Parameters(pbio, NULL); |
270 |
|
24 |
BIO_free(pbio); |
271 |
|
|
|
272 |
✗✓ |
24 |
if (!pkey) { |
273 |
|
|
BIO_printf(bio_err, "Error reading parameter file %s\n", file); |
274 |
|
|
return 0; |
275 |
|
|
} |
276 |
|
24 |
ctx = EVP_PKEY_CTX_new(pkey, NULL); |
277 |
✓✗ |
24 |
if (!ctx) |
278 |
|
|
goto err; |
279 |
✓✗ |
24 |
if (EVP_PKEY_keygen_init(ctx) <= 0) |
280 |
|
|
goto err; |
281 |
|
24 |
EVP_PKEY_free(pkey); |
282 |
|
24 |
*pctx = ctx; |
283 |
|
24 |
return 1; |
284 |
|
|
|
285 |
|
|
err: |
286 |
|
|
BIO_puts(err, "Error initializing context\n"); |
287 |
|
|
ERR_print_errors(err); |
288 |
|
|
if (ctx) |
289 |
|
|
EVP_PKEY_CTX_free(ctx); |
290 |
|
|
if (pkey) |
291 |
|
|
EVP_PKEY_free(pkey); |
292 |
|
|
return 0; |
293 |
|
|
|
294 |
|
24 |
} |
295 |
|
|
|
296 |
|
|
int |
297 |
|
|
init_gen_str(BIO * err, EVP_PKEY_CTX ** pctx, |
298 |
|
|
const char *algname, int do_param) |
299 |
|
|
{ |
300 |
|
|
EVP_PKEY_CTX *ctx = NULL; |
301 |
|
|
const EVP_PKEY_ASN1_METHOD *ameth; |
302 |
|
272 |
int pkey_id; |
303 |
|
|
|
304 |
✗✓ |
136 |
if (*pctx) { |
305 |
|
|
BIO_puts(err, "Algorithm already set!\n"); |
306 |
|
|
return 0; |
307 |
|
|
} |
308 |
|
136 |
ameth = EVP_PKEY_asn1_find_str(NULL, algname, -1); |
309 |
|
|
|
310 |
✗✓ |
136 |
if (!ameth) { |
311 |
|
|
BIO_printf(bio_err, "Algorithm %s not found\n", algname); |
312 |
|
|
return 0; |
313 |
|
|
} |
314 |
|
136 |
ERR_clear_error(); |
315 |
|
|
|
316 |
|
136 |
EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth); |
317 |
|
136 |
ctx = EVP_PKEY_CTX_new_id(pkey_id, NULL); |
318 |
|
|
|
319 |
✓✗ |
136 |
if (!ctx) |
320 |
|
|
goto err; |
321 |
✓✓ |
136 |
if (do_param) { |
322 |
✓✗ |
24 |
if (EVP_PKEY_paramgen_init(ctx) <= 0) |
323 |
|
|
goto err; |
324 |
|
|
} else { |
325 |
✓✗ |
112 |
if (EVP_PKEY_keygen_init(ctx) <= 0) |
326 |
|
|
goto err; |
327 |
|
|
} |
328 |
|
|
|
329 |
|
136 |
*pctx = ctx; |
330 |
|
136 |
return 1; |
331 |
|
|
|
332 |
|
|
err: |
333 |
|
|
BIO_printf(err, "Error initializing %s context\n", algname); |
334 |
|
|
ERR_print_errors(err); |
335 |
|
|
if (ctx) |
336 |
|
|
EVP_PKEY_CTX_free(ctx); |
337 |
|
|
return 0; |
338 |
|
|
|
339 |
|
136 |
} |
340 |
|
|
|
341 |
|
|
static int |
342 |
|
|
genpkey_cb(EVP_PKEY_CTX * ctx) |
343 |
|
|
{ |
344 |
|
53448 |
char c = '*'; |
345 |
|
26724 |
BIO *b = EVP_PKEY_CTX_get_app_data(ctx); |
346 |
|
|
int p; |
347 |
|
26724 |
p = EVP_PKEY_CTX_get_keygen_info(ctx, 0); |
348 |
✓✓ |
26724 |
if (p == 0) |
349 |
|
25021 |
c = '.'; |
350 |
✓✓ |
26724 |
if (p == 1) |
351 |
|
1623 |
c = '+'; |
352 |
✓✓ |
26724 |
if (p == 2) |
353 |
|
40 |
c = '*'; |
354 |
✓✓ |
26724 |
if (p == 3) |
355 |
|
40 |
c = '\n'; |
356 |
|
26724 |
BIO_write(b, &c, 1); |
357 |
|
26724 |
(void) BIO_flush(b); |
358 |
|
26724 |
return 1; |
359 |
|
26724 |
} |