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d02b48c6 1/* apps/dsa.c */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
3eeaab4b 59#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
cf1b7d96 60#ifndef OPENSSL_NO_DSA
d02b48c6
RE
61#include <stdio.h>
62#include <stdlib.h>
63#include <string.h>
64#include <time.h>
65#include "apps.h"
ec577822
BM
66#include <openssl/bio.h>
67#include <openssl/err.h>
68#include <openssl/dsa.h>
69#include <openssl/evp.h>
70#include <openssl/x509.h>
71#include <openssl/pem.h>
f0eae953 72#include <openssl/bn.h>
d02b48c6
RE
73
74#undef PROG
75#define PROG dsa_main
76
77/* -inform arg - input format - default PEM (one of DER, NET or PEM)
78 * -outform arg - output format - default PEM
79 * -in arg - input file - default stdin
80 * -out arg - output file - default stdout
81 * -des - encrypt output if PEM format with DES in cbc mode
82 * -des3 - encrypt output if PEM format
83 * -idea - encrypt output if PEM format
b3dfaaa1
RL
84 * -aes128 - encrypt output if PEM format
85 * -aes192 - encrypt output if PEM format
86 * -aes256 - encrypt output if PEM format
d02b48c6
RE
87 * -text - print a text version
88 * -modulus - print the DSA public key
89 */
90
667ac4ec
RE
91int MAIN(int, char **);
92
6b691a5c 93int MAIN(int argc, char **argv)
d02b48c6 94 {
0b13e9f0 95#ifndef OPENSSL_NO_ENGINE
5270e702 96 ENGINE *e = NULL;
0b13e9f0 97#endif
d02b48c6
RE
98 int ret=1;
99 DSA *dsa=NULL;
100 int i,badops=0;
e778802f 101 const EVP_CIPHER *enc=NULL;
d02b48c6
RE
102 BIO *in=NULL,*out=NULL;
103 int informat,outformat,text=0,noout=0;
3ea23631 104 int pubin = 0, pubout = 0;
0b13e9f0
RL
105 char *infile,*outfile,*prog;
106#ifndef OPENSSL_NO_ENGINE
107 char *engine;
108#endif
a3fe382e 109 char *passargin = NULL, *passargout = NULL;
af29811e 110 char *passin = NULL, *passout = NULL;
d02b48c6
RE
111 int modulus=0;
112
3f67e11f
DSH
113 int pvk_encr = 2;
114
d02b48c6
RE
115 apps_startup();
116
117 if (bio_err == NULL)
118 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49 119 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
d02b48c6 120
3647bee2
DSH
121 if (!load_config(bio_err, NULL))
122 goto end;
123
0b13e9f0 124#ifndef OPENSSL_NO_ENGINE
5270e702 125 engine=NULL;
0b13e9f0 126#endif
d02b48c6
RE
127 infile=NULL;
128 outfile=NULL;
129 informat=FORMAT_PEM;
130 outformat=FORMAT_PEM;
131
132 prog=argv[0];
133 argc--;
134 argv++;
135 while (argc >= 1)
136 {
137 if (strcmp(*argv,"-inform") == 0)
138 {
139 if (--argc < 1) goto bad;
140 informat=str2fmt(*(++argv));
141 }
142 else if (strcmp(*argv,"-outform") == 0)
143 {
144 if (--argc < 1) goto bad;
145 outformat=str2fmt(*(++argv));
146 }
147 else if (strcmp(*argv,"-in") == 0)
148 {
149 if (--argc < 1) goto bad;
150 infile= *(++argv);
151 }
152 else if (strcmp(*argv,"-out") == 0)
153 {
154 if (--argc < 1) goto bad;
155 outfile= *(++argv);
156 }
af29811e
DSH
157 else if (strcmp(*argv,"-passin") == 0)
158 {
159 if (--argc < 1) goto bad;
a3fe382e 160 passargin= *(++argv);
af29811e
DSH
161 }
162 else if (strcmp(*argv,"-passout") == 0)
163 {
164 if (--argc < 1) goto bad;
a3fe382e 165 passargout= *(++argv);
af29811e 166 }
0b13e9f0 167#ifndef OPENSSL_NO_ENGINE
5270e702
RL
168 else if (strcmp(*argv,"-engine") == 0)
169 {
170 if (--argc < 1) goto bad;
171 engine= *(++argv);
172 }
0b13e9f0 173#endif
3f67e11f
DSH
174 else if (strcmp(*argv,"-pvk-strong") == 0)
175 pvk_encr=2;
176 else if (strcmp(*argv,"-pvk-weak") == 0)
177 pvk_encr=1;
178 else if (strcmp(*argv,"-pvk-none") == 0)
179 pvk_encr=0;
d02b48c6
RE
180 else if (strcmp(*argv,"-noout") == 0)
181 noout=1;
182 else if (strcmp(*argv,"-text") == 0)
183 text=1;
184 else if (strcmp(*argv,"-modulus") == 0)
185 modulus=1;
3ea23631
DSH
186 else if (strcmp(*argv,"-pubin") == 0)
187 pubin=1;
188 else if (strcmp(*argv,"-pubout") == 0)
189 pubout=1;
d02b48c6
RE
190 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
191 {
192 BIO_printf(bio_err,"unknown option %s\n",*argv);
193 badops=1;
194 break;
195 }
196 argc--;
197 argv++;
198 }
199
200 if (badops)
201 {
202bad:
203 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
204 BIO_printf(bio_err,"where options are\n");
af29811e
DSH
205 BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
206 BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
207 BIO_printf(bio_err," -in arg input file\n");
a3fe382e 208 BIO_printf(bio_err," -passin arg input file pass phrase source\n");
af29811e 209 BIO_printf(bio_err," -out arg output file\n");
a3fe382e 210 BIO_printf(bio_err," -passout arg output file pass phrase source\n");
0b13e9f0 211#ifndef OPENSSL_NO_ENGINE
5270e702 212 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
0b13e9f0 213#endif
af29811e
DSH
214 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n");
215 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n");
cf1b7d96 216#ifndef OPENSSL_NO_IDEA
af29811e 217 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n");
b3dfaaa1
RL
218#endif
219#ifndef OPENSSL_NO_AES
220 BIO_printf(bio_err," -aes128, -aes192, -aes256\n");
221 BIO_printf(bio_err," encrypt PEM output with cbc aes\n");
d02b48c6 222#endif
af29811e
DSH
223 BIO_printf(bio_err," -text print the key in text\n");
224 BIO_printf(bio_err," -noout don't print key out\n");
225 BIO_printf(bio_err," -modulus print the DSA public value\n");
d02b48c6
RE
226 goto end;
227 }
228
229 ERR_load_crypto_strings();
230
0b13e9f0 231#ifndef OPENSSL_NO_ENGINE
a3376fe8 232 e = setup_engine(bio_err, engine, 0);
0b13e9f0 233#endif
5270e702 234
a3fe382e
DSH
235 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
236 BIO_printf(bio_err, "Error getting passwords\n");
237 goto end;
238 }
239
d02b48c6
RE
240 in=BIO_new(BIO_s_file());
241 out=BIO_new(BIO_s_file());
242 if ((in == NULL) || (out == NULL))
243 {
244 ERR_print_errors(bio_err);
245 goto end;
246 }
247
248 if (infile == NULL)
249 BIO_set_fp(in,stdin,BIO_NOCLOSE);
250 else
251 {
252 if (BIO_read_filename(in,infile) <= 0)
253 {
254 perror(infile);
255 goto end;
256 }
257 }
258
3ea23631 259 BIO_printf(bio_err,"read DSA key\n");
a0156a92 260
d02b48c6 261 {
a0156a92
DSH
262 EVP_PKEY *pkey;
263
264 if (pubin)
265 pkey = load_pubkey(bio_err, infile, informat, 1,
266 passin, e, "Public Key");
267 else
268 pkey = load_key(bio_err, infile, informat, 1,
269 passin, e, "Private Key");
270
271 if (pkey)
272 {
273 dsa = EVP_PKEY_get1_DSA(pkey);
274 EVP_PKEY_free(pkey);
275 }
d02b48c6
RE
276 }
277 if (dsa == NULL)
278 {
3ea23631 279 BIO_printf(bio_err,"unable to load Key\n");
d02b48c6
RE
280 ERR_print_errors(bio_err);
281 goto end;
282 }
283
284 if (outfile == NULL)
645749ef 285 {
d02b48c6 286 BIO_set_fp(out,stdout,BIO_NOCLOSE);
bc36ee62 287#ifdef OPENSSL_SYS_VMS
645749ef
RL
288 {
289 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
290 out = BIO_push(tmpbio, out);
291 }
292#endif
293 }
d02b48c6
RE
294 else
295 {
296 if (BIO_write_filename(out,outfile) <= 0)
297 {
298 perror(outfile);
299 goto end;
300 }
301 }
302
303 if (text)
304 if (!DSA_print(out,dsa,0))
305 {
306 perror(outfile);
307 ERR_print_errors(bio_err);
308 goto end;
309 }
310
311 if (modulus)
312 {
313 fprintf(stdout,"Public Key=");
314 BN_print(out,dsa->pub_key);
315 fprintf(stdout,"\n");
316 }
317
318 if (noout) goto end;
3ea23631
DSH
319 BIO_printf(bio_err,"writing DSA key\n");
320 if (outformat == FORMAT_ASN1) {
52664f50 321 if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa);
3ea23631
DSH
322 else i=i2d_DSAPrivateKey_bio(out,dsa);
323 } else if (outformat == FORMAT_PEM) {
324 if(pubin || pubout)
52664f50 325 i=PEM_write_bio_DSA_PUBKEY(out,dsa);
36217a94 326 else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,
a3fe382e 327 NULL,0,NULL, passout);
3f67e11f 328 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
a0156a92
DSH
329 EVP_PKEY *pk;
330 pk = EVP_PKEY_new();
331 EVP_PKEY_set1_DSA(pk, dsa);
3f67e11f
DSH
332 if (outformat == FORMAT_PVK)
333 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
334 else if (pubin || pubout)
a0156a92
DSH
335 i = i2b_PublicKey_bio(out, pk);
336 else
337 i = i2b_PrivateKey_bio(out, pk);
338 EVP_PKEY_free(pk);
af29811e 339 } else {
d02b48c6
RE
340 BIO_printf(bio_err,"bad output format specified for outfile\n");
341 goto end;
342 }
343 if (!i)
344 {
345 BIO_printf(bio_err,"unable to write private key\n");
346 ERR_print_errors(bio_err);
347 }
348 else
349 ret=0;
350end:
a3fe382e 351 if(in != NULL) BIO_free(in);
645749ef 352 if(out != NULL) BIO_free_all(out);
a3fe382e 353 if(dsa != NULL) DSA_free(dsa);
26a3a48d
RL
354 if(passin) OPENSSL_free(passin);
355 if(passout) OPENSSL_free(passout);
c04f8cf4 356 apps_shutdown();
1c3e4a36 357 OPENSSL_EXIT(ret);
d02b48c6 358 }
f5d7a031 359#endif