]> git.ipfire.org Git - thirdparty/openssl.git/blame - apps/dsa.c
Add list -public-key-methods
[thirdparty/openssl.git] / apps / dsa.c
CommitLineData
846e33c7 1/*
2234212c 2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6 3 *
846e33c7
RS
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
d02b48c6
RE
8 */
9
effaf4de
RS
10#include <openssl/opensslconf.h>
11#ifdef OPENSSL_NO_DSA
12NON_EMPTY_TRANSLATION_UNIT
13#else
14
0f113f3e
MC
15# include <stdio.h>
16# include <stdlib.h>
17# include <string.h>
18# include <time.h>
19# include "apps.h"
20# include <openssl/bio.h>
21# include <openssl/err.h>
22# include <openssl/dsa.h>
23# include <openssl/evp.h>
24# include <openssl/x509.h>
25# include <openssl/pem.h>
26# include <openssl/bn.h>
d02b48c6 27
7e1b7485
RS
28typedef enum OPTION_choice {
29 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
e7917e38
F
30 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENGINE,
31 /* Do not change the order here; see case statements below */
32 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
33 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_PUBIN,
7e1b7485
RS
34 OPT_PUBOUT, OPT_CIPHER, OPT_PASSIN, OPT_PASSOUT
35} OPTION_CHOICE;
d02b48c6 36
44c83ebd 37const OPTIONS dsa_options[] = {
7e1b7485 38 {"help", OPT_HELP, '-', "Display this summary"},
d18ba3cc 39 {"inform", OPT_INFORM, 'f', "Input format, DER PEM PVK"},
b3795987 40 {"outform", OPT_OUTFORM, 'f', "Output format, DER PEM PVK"},
dd958974 41 {"in", OPT_IN, 's', "Input key"},
7e1b7485 42 {"out", OPT_OUT, '>', "Output file"},
7e1b7485
RS
43 {"noout", OPT_NOOUT, '-', "Don't print key out"},
44 {"text", OPT_TEXT, '-', "Print the key in text"},
45 {"modulus", OPT_MODULUS, '-', "Print the DSA public value"},
16e1b281
F
46 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
47 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
7e1b7485
RS
48 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
49 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
50 {"", OPT_CIPHER, '-', "Any supported cipher"},
9c3bcfa0 51# ifndef OPENSSL_NO_RC4
e7917e38
F
52 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
53 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
54 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
9c3bcfa0
RS
55# endif
56# ifndef OPENSSL_NO_ENGINE
57 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
58# endif
7e1b7485
RS
59 {NULL}
60};
667ac4ec 61
7e1b7485 62int dsa_main(int argc, char **argv)
0f113f3e 63{
7e1b7485 64 BIO *out = NULL;
0f113f3e 65 DSA *dsa = NULL;
7e1b7485 66 ENGINE *e = NULL;
0f113f3e 67 const EVP_CIPHER *enc = NULL;
333b070e
RS
68 char *infile = NULL, *outfile = NULL, *prog;
69 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
7e1b7485
RS
70 OPTION_CHOICE o;
71 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
9730043f
BL
72 int i, modulus = 0, pubin = 0, pubout = 0, ret = 1;
73# ifndef OPENSSL_NO_RC4
74 int pvk_encr = 2;
75# endif
3b061a00 76 int private = 0;
d02b48c6 77
7e1b7485
RS
78 prog = opt_init(argc, argv, dsa_options);
79 while ((o = opt_next()) != OPT_EOF) {
80 switch (o) {
81 case OPT_EOF:
82 case OPT_ERR:
7e1b7485
RS
83 opthelp:
84 ret = 0;
85 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
86 goto end;
87 case OPT_HELP:
88 opt_help(dsa_options);
89 ret = 0;
90 goto end;
91 case OPT_INFORM:
dd958974 92 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
7e1b7485
RS
93 goto opthelp;
94 break;
95 case OPT_IN:
96 infile = opt_arg();
97 break;
98 case OPT_OUTFORM:
b3795987 99 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
7e1b7485
RS
100 goto opthelp;
101 break;
102 case OPT_OUT:
103 outfile = opt_arg();
104 break;
105 case OPT_ENGINE:
333b070e 106 e = setup_engine(opt_arg(), 0);
7e1b7485
RS
107 break;
108 case OPT_PASSIN:
109 passinarg = opt_arg();
110 break;
111 case OPT_PASSOUT:
112 passoutarg = opt_arg();
113 break;
e7917e38
F
114 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
115 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
116 case OPT_PVK_NONE: /* pvk_encr:= 0 */
35313768 117#ifndef OPENSSL_NO_RC4
e7917e38 118 pvk_encr = (o - OPT_PVK_NONE);
35313768 119#endif
e7917e38 120 break;
7e1b7485 121 case OPT_NOOUT:
0f113f3e 122 noout = 1;
7e1b7485
RS
123 break;
124 case OPT_TEXT:
0f113f3e 125 text = 1;
7e1b7485
RS
126 break;
127 case OPT_MODULUS:
0f113f3e 128 modulus = 1;
7e1b7485
RS
129 break;
130 case OPT_PUBIN:
0f113f3e 131 pubin = 1;
7e1b7485
RS
132 break;
133 case OPT_PUBOUT:
0f113f3e 134 pubout = 1;
7e1b7485
RS
135 break;
136 case OPT_CIPHER:
137 if (!opt_cipher(opt_unknown(), &enc))
138 goto end;
0f113f3e
MC
139 break;
140 }
0f113f3e 141 }
7e1b7485 142 argc = opt_num_rest();
03358517
KR
143 if (argc != 0)
144 goto opthelp;
145
3b061a00 146 private = pubin || pubout ? 0 : 1;
7eff6aa0 147 if (text && !pubin)
3b061a00 148 private = 1;
d02b48c6 149
7e1b7485 150 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e
MC
151 BIO_printf(bio_err, "Error getting passwords\n");
152 goto end;
153 }
a3fe382e 154
0f113f3e 155 BIO_printf(bio_err, "read DSA key\n");
0f113f3e
MC
156 {
157 EVP_PKEY *pkey;
a0156a92 158
0f113f3e 159 if (pubin)
7e1b7485 160 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
0f113f3e 161 else
7e1b7485 162 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
a0156a92 163
2234212c 164 if (pkey != NULL) {
0f113f3e
MC
165 dsa = EVP_PKEY_get1_DSA(pkey);
166 EVP_PKEY_free(pkey);
167 }
168 }
169 if (dsa == NULL) {
170 BIO_printf(bio_err, "unable to load Key\n");
171 ERR_print_errors(bio_err);
172 goto end;
173 }
d02b48c6 174
bdd58d98 175 out = bio_open_owner(outfile, outformat, private);
7e1b7485
RS
176 if (out == NULL)
177 goto end;
d02b48c6 178
3b061a00 179 if (text) {
7eff6aa0 180 assert(pubin || private);
0f113f3e
MC
181 if (!DSA_print(out, dsa, 0)) {
182 perror(outfile);
183 ERR_print_errors(bio_err);
184 goto end;
185 }
3b061a00 186 }
d02b48c6 187
0f113f3e 188 if (modulus) {
2ac6115d 189 const BIGNUM *pub_key = NULL;
6e9fa57c 190 DSA_get0_key(dsa, &pub_key, NULL);
7e1b7485 191 BIO_printf(out, "Public Key=");
6e9fa57c 192 BN_print(out, pub_key);
7e1b7485 193 BIO_printf(out, "\n");
0f113f3e 194 }
d02b48c6 195
7e1b7485
RS
196 if (noout) {
197 ret = 0;
0f113f3e 198 goto end;
7e1b7485 199 }
0f113f3e
MC
200 BIO_printf(bio_err, "writing DSA key\n");
201 if (outformat == FORMAT_ASN1) {
2234212c 202 if (pubin || pubout) {
0f113f3e 203 i = i2d_DSA_PUBKEY_bio(out, dsa);
2234212c 204 } else {
3b061a00 205 assert(private);
0f113f3e 206 i = i2d_DSAPrivateKey_bio(out, dsa);
3b061a00 207 }
0f113f3e 208 } else if (outformat == FORMAT_PEM) {
2234212c 209 if (pubin || pubout) {
0f113f3e 210 i = PEM_write_bio_DSA_PUBKEY(out, dsa);
2234212c 211 } else {
3b061a00 212 assert(private);
0f113f3e
MC
213 i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
214 NULL, 0, NULL, passout);
3b061a00 215 }
b6c68982 216# ifndef OPENSSL_NO_RSA
0f113f3e
MC
217 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
218 EVP_PKEY *pk;
219 pk = EVP_PKEY_new();
220 EVP_PKEY_set1_DSA(pk, dsa);
3b061a00 221 if (outformat == FORMAT_PVK) {
7eff6aa0
VD
222 if (pubin) {
223 BIO_printf(bio_err, "PVK form impossible with public key input\n");
224 EVP_PKEY_free(pk);
225 goto end;
226 }
3b061a00 227 assert(private);
b6c68982
DSH
228# ifdef OPENSSL_NO_RC4
229 BIO_printf(bio_err, "PVK format not supported\n");
230 EVP_PKEY_free(pk);
231 goto end;
232# else
0f113f3e 233 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
b6c68982 234# endif
2234212c 235 } else if (pubin || pubout) {
0f113f3e 236 i = i2b_PublicKey_bio(out, pk);
2234212c 237 } else {
3b061a00 238 assert(private);
0f113f3e 239 i = i2b_PrivateKey_bio(out, pk);
3b061a00 240 }
0f113f3e
MC
241 EVP_PKEY_free(pk);
242# endif
243 } else {
244 BIO_printf(bio_err, "bad output format specified for outfile\n");
245 goto end;
246 }
247 if (i <= 0) {
248 BIO_printf(bio_err, "unable to write private key\n");
249 ERR_print_errors(bio_err);
7e1b7485
RS
250 goto end;
251 }
252 ret = 0;
0f113f3e 253 end:
ca3a82c3 254 BIO_free_all(out);
d6407083 255 DSA_free(dsa);
dd1abd44 256 release_engine(e);
b548a1f1
RS
257 OPENSSL_free(passin);
258 OPENSSL_free(passout);
7e1b7485 259 return (ret);
0f113f3e 260}
f5d7a031 261#endif