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source: vbox/trunk/src/libs/openssl-1.1.1f/apps/dsa.c@ 83663

Last change on this file since 83663 was 83531, checked in by vboxsync, 5 years ago

setting svn:sync-process=export for openssl-1.1.1f, all files except tests
File size: 7.6 KB
Line 
1/*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10#include <openssl/opensslconf.h>
11#ifdef OPENSSL_NO_DSA
12NON_EMPTY_TRANSLATION_UNIT
13#else
14
15# include <stdio.h>
16# include <stdlib.h>
17# include <string.h>
18# include <time.h>
19# include "apps.h"
20# include "progs.h"
21# include <openssl/bio.h>
22# include <openssl/err.h>
23# include <openssl/dsa.h>
24# include <openssl/evp.h>
25# include <openssl/x509.h>
26# include <openssl/pem.h>
27# include <openssl/bn.h>
28
29typedef enum OPTION_choice {
30 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
31 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENGINE,
32 /* Do not change the order here; see case statements below */
33 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
34 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_PUBIN,
35 OPT_PUBOUT, OPT_CIPHER, OPT_PASSIN, OPT_PASSOUT
36} OPTION_CHOICE;
37
38const OPTIONS dsa_options[] = {
39 {"help", OPT_HELP, '-', "Display this summary"},
40 {"inform", OPT_INFORM, 'f', "Input format, DER PEM PVK"},
41 {"outform", OPT_OUTFORM, 'f', "Output format, DER PEM PVK"},
42 {"in", OPT_IN, 's', "Input key"},
43 {"out", OPT_OUT, '>', "Output file"},
44 {"noout", OPT_NOOUT, '-', "Don't print key out"},
45 {"text", OPT_TEXT, '-', "Print the key in text"},
46 {"modulus", OPT_MODULUS, '-', "Print the DSA public value"},
47 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
48 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
49 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
50 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
51 {"", OPT_CIPHER, '-', "Any supported cipher"},
52# ifndef OPENSSL_NO_RC4
53 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
54 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
55 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
56# endif
57# ifndef OPENSSL_NO_ENGINE
58 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
59# endif
60 {NULL}
61};
62
63int dsa_main(int argc, char **argv)
64{
65 BIO *out = NULL;
66 DSA *dsa = NULL;
67 ENGINE *e = NULL;
68 const EVP_CIPHER *enc = NULL;
69 char *infile = NULL, *outfile = NULL, *prog;
70 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
71 OPTION_CHOICE o;
72 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
73 int i, modulus = 0, pubin = 0, pubout = 0, ret = 1;
74# ifndef OPENSSL_NO_RC4
75 int pvk_encr = 2;
76# endif
77 int private = 0;
78
79 prog = opt_init(argc, argv, dsa_options);
80 while ((o = opt_next()) != OPT_EOF) {
81 switch (o) {
82 case OPT_EOF:
83 case OPT_ERR:
84 opthelp:
85 ret = 0;
86 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
87 goto end;
88 case OPT_HELP:
89 opt_help(dsa_options);
90 ret = 0;
91 goto end;
92 case OPT_INFORM:
93 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
94 goto opthelp;
95 break;
96 case OPT_IN:
97 infile = opt_arg();
98 break;
99 case OPT_OUTFORM:
100 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
101 goto opthelp;
102 break;
103 case OPT_OUT:
104 outfile = opt_arg();
105 break;
106 case OPT_ENGINE:
107 e = setup_engine(opt_arg(), 0);
108 break;
109 case OPT_PASSIN:
110 passinarg = opt_arg();
111 break;
112 case OPT_PASSOUT:
113 passoutarg = opt_arg();
114 break;
115 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
116 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
117 case OPT_PVK_NONE: /* pvk_encr:= 0 */
118#ifndef OPENSSL_NO_RC4
119 pvk_encr = (o - OPT_PVK_NONE);
120#endif
121 break;
122 case OPT_NOOUT:
123 noout = 1;
124 break;
125 case OPT_TEXT:
126 text = 1;
127 break;
128 case OPT_MODULUS:
129 modulus = 1;
130 break;
131 case OPT_PUBIN:
132 pubin = 1;
133 break;
134 case OPT_PUBOUT:
135 pubout = 1;
136 break;
137 case OPT_CIPHER:
138 if (!opt_cipher(opt_unknown(), &enc))
139 goto end;
140 break;
141 }
142 }
143 argc = opt_num_rest();
144 if (argc != 0)
145 goto opthelp;
146
147 private = pubin || pubout ? 0 : 1;
148 if (text && !pubin)
149 private = 1;
150
151 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
152 BIO_printf(bio_err, "Error getting passwords\n");
153 goto end;
154 }
155
156 BIO_printf(bio_err, "read DSA key\n");
157 {
158 EVP_PKEY *pkey;
159
160 if (pubin)
161 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
162 else
163 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
164
165 if (pkey != NULL) {
166 dsa = EVP_PKEY_get1_DSA(pkey);
167 EVP_PKEY_free(pkey);
168 }
169 }
170 if (dsa == NULL) {
171 BIO_printf(bio_err, "unable to load Key\n");
172 ERR_print_errors(bio_err);
173 goto end;
174 }
175
176 out = bio_open_owner(outfile, outformat, private);
177 if (out == NULL)
178 goto end;
179
180 if (text) {
181 assert(pubin || private);
182 if (!DSA_print(out, dsa, 0)) {
183 perror(outfile);
184 ERR_print_errors(bio_err);
185 goto end;
186 }
187 }
188
189 if (modulus) {
190 const BIGNUM *pub_key = NULL;
191 DSA_get0_key(dsa, &pub_key, NULL);
192 BIO_printf(out, "Public Key=");
193 BN_print(out, pub_key);
194 BIO_printf(out, "\n");
195 }
196
197 if (noout) {
198 ret = 0;
199 goto end;
200 }
201 BIO_printf(bio_err, "writing DSA key\n");
202 if (outformat == FORMAT_ASN1) {
203 if (pubin || pubout) {
204 i = i2d_DSA_PUBKEY_bio(out, dsa);
205 } else {
206 assert(private);
207 i = i2d_DSAPrivateKey_bio(out, dsa);
208 }
209 } else if (outformat == FORMAT_PEM) {
210 if (pubin || pubout) {
211 i = PEM_write_bio_DSA_PUBKEY(out, dsa);
212 } else {
213 assert(private);
214 i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
215 NULL, 0, NULL, passout);
216 }
217# ifndef OPENSSL_NO_RSA
218 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
219 EVP_PKEY *pk;
220 pk = EVP_PKEY_new();
221 if (pk == NULL)
222 goto end;
223
224 EVP_PKEY_set1_DSA(pk, dsa);
225 if (outformat == FORMAT_PVK) {
226 if (pubin) {
227 BIO_printf(bio_err, "PVK form impossible with public key input\n");
228 EVP_PKEY_free(pk);
229 goto end;
230 }
231 assert(private);
232# ifdef OPENSSL_NO_RC4
233 BIO_printf(bio_err, "PVK format not supported\n");
234 EVP_PKEY_free(pk);
235 goto end;
236# else
237 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
238# endif
239 } else if (pubin || pubout) {
240 i = i2b_PublicKey_bio(out, pk);
241 } else {
242 assert(private);
243 i = i2b_PrivateKey_bio(out, pk);
244 }
245 EVP_PKEY_free(pk);
246# endif
247 } else {
248 BIO_printf(bio_err, "bad output format specified for outfile\n");
249 goto end;
250 }
251 if (i <= 0) {
252 BIO_printf(bio_err, "unable to write private key\n");
253 ERR_print_errors(bio_err);
254 goto end;
255 }
256 ret = 0;
257 end:
258 BIO_free_all(out);
259 DSA_free(dsa);
260 release_engine(e);
261 OPENSSL_free(passin);
262 OPENSSL_free(passout);
263 return ret;
264}
265#endif
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