Annotation of src/usr.bin/openssl/gendsa.c, Revision 1.10
1.10 ! jsing 1: /* $OpenBSD: gendsa.c,v 1.9 2018/02/07 04:57:06 jsing Exp $ */
1.1 jsing 2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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:
59: #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
60:
61:
62: #include <sys/types.h>
63: #include <sys/stat.h>
64:
65: #include <stdio.h>
66: #include <string.h>
67:
68: #include "apps.h"
69:
70: #include <openssl/bio.h>
71: #include <openssl/bn.h>
72: #include <openssl/dsa.h>
73: #include <openssl/err.h>
74: #include <openssl/pem.h>
75: #include <openssl/x509.h>
76:
77: int
78: gendsa_main(int argc, char **argv)
79: {
80: DSA *dsa = NULL;
81: int ret = 1;
82: char *outfile = NULL;
83: char *dsaparams = NULL;
84: char *passargout = NULL, *passout = NULL;
85: BIO *out = NULL, *in = NULL;
86: const EVP_CIPHER *enc = NULL;
1.5 doug 87:
88: if (single_execution) {
1.8 deraadt 89: if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
1.5 doug 90: perror("pledge");
1.7 doug 91: exit(1);
92: }
1.5 doug 93: }
1.1 jsing 94:
95: argv++;
96: argc--;
97: for (;;) {
98: if (argc <= 0)
99: break;
100: if (strcmp(*argv, "-out") == 0) {
101: if (--argc < 1)
102: goto bad;
103: outfile = *(++argv);
104: } else if (strcmp(*argv, "-passout") == 0) {
105: if (--argc < 1)
106: goto bad;
107: passargout = *(++argv);
108: }
109: else if (strcmp(*argv, "-") == 0)
110: goto bad;
111: #ifndef OPENSSL_NO_DES
112: else if (strcmp(*argv, "-des") == 0)
113: enc = EVP_des_cbc();
114: else if (strcmp(*argv, "-des3") == 0)
115: enc = EVP_des_ede3_cbc();
116: #endif
117: #ifndef OPENSSL_NO_IDEA
118: else if (strcmp(*argv, "-idea") == 0)
119: enc = EVP_idea_cbc();
120: #endif
121: #ifndef OPENSSL_NO_AES
122: else if (strcmp(*argv, "-aes128") == 0)
123: enc = EVP_aes_128_cbc();
124: else if (strcmp(*argv, "-aes192") == 0)
125: enc = EVP_aes_192_cbc();
126: else if (strcmp(*argv, "-aes256") == 0)
127: enc = EVP_aes_256_cbc();
128: #endif
129: #ifndef OPENSSL_NO_CAMELLIA
130: else if (strcmp(*argv, "-camellia128") == 0)
131: enc = EVP_camellia_128_cbc();
132: else if (strcmp(*argv, "-camellia192") == 0)
133: enc = EVP_camellia_192_cbc();
134: else if (strcmp(*argv, "-camellia256") == 0)
135: enc = EVP_camellia_256_cbc();
136: #endif
137: else if (**argv != '-' && dsaparams == NULL) {
138: dsaparams = *argv;
139: } else
140: goto bad;
141: argv++;
142: argc--;
143: }
144:
145: if (dsaparams == NULL) {
1.10 ! jsing 146: bad:
1.1 jsing 147: BIO_printf(bio_err, "usage: gendsa [args] dsaparam-file\n");
148: BIO_printf(bio_err, " -out file - output the key to 'file'\n");
149: #ifndef OPENSSL_NO_DES
150: BIO_printf(bio_err, " -des - encrypt the generated key with DES in cbc mode\n");
151: BIO_printf(bio_err, " -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
152: #endif
153: #ifndef OPENSSL_NO_IDEA
154: BIO_printf(bio_err, " -idea - encrypt the generated key with IDEA in cbc mode\n");
155: #endif
156: #ifndef OPENSSL_NO_AES
157: BIO_printf(bio_err, " -aes128, -aes192, -aes256\n");
158: BIO_printf(bio_err, " encrypt PEM output with cbc aes\n");
159: #endif
160: #ifndef OPENSSL_NO_CAMELLIA
161: BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n");
162: BIO_printf(bio_err, " encrypt PEM output with cbc camellia\n");
163: #endif
164: BIO_printf(bio_err, " dsaparam-file\n");
165: BIO_printf(bio_err, " - a DSA parameter file as generated by the dsaparam command\n");
166: goto end;
167: }
168: if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
169: BIO_printf(bio_err, "Error getting password\n");
170: goto end;
171: }
172: in = BIO_new(BIO_s_file());
173: if (!(BIO_read_filename(in, dsaparams))) {
174: perror(dsaparams);
175: goto end;
176: }
177: if ((dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL)) == NULL) {
178: BIO_printf(bio_err, "unable to load DSA parameter file\n");
179: goto end;
180: }
181: BIO_free(in);
182: in = NULL;
183:
184: out = BIO_new(BIO_s_file());
185: if (out == NULL)
186: goto end;
187:
188: if (outfile == NULL) {
189: BIO_set_fp(out, stdout, BIO_NOCLOSE);
190: } else {
191: if (BIO_write_filename(out, outfile) <= 0) {
192: perror(outfile);
193: goto end;
194: }
195: }
196:
197: BIO_printf(bio_err, "Generating DSA key, %d bits\n",
198: BN_num_bits(dsa->p));
199: if (!DSA_generate_key(dsa))
200: goto end;
201:
202: if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout))
203: goto end;
204: ret = 0;
1.10 ! jsing 205: end:
1.1 jsing 206: if (ret != 0)
207: ERR_print_errors(bio_err);
208: BIO_free(in);
1.9 jsing 209: BIO_free_all(out);
210: DSA_free(dsa);
1.1 jsing 211: free(passout);
212:
213: return (ret);
214: }
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