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source: vbox/trunk/src/libs/openssl-1.1.1l/apps/ec.c@ 95000

Last change on this file since 95000 was 91772, checked in by vboxsync, 3 years ago

openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
File size: 8.1 KB
Line 
1/*
2 * Copyright 2002-2020 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#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include "apps.h"
15#include "progs.h"
16#include <openssl/bio.h>
17#include <openssl/err.h>
18#include <openssl/evp.h>
19#include <openssl/pem.h>
20
21static OPT_PAIR conv_forms[] = {
22 {"compressed", POINT_CONVERSION_COMPRESSED},
23 {"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
24 {"hybrid", POINT_CONVERSION_HYBRID},
25 {NULL}
26};
27
28static OPT_PAIR param_enc[] = {
29 {"named_curve", OPENSSL_EC_NAMED_CURVE},
30 {"explicit", 0},
31 {NULL}
32};
33
34typedef enum OPTION_choice {
35 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
36 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
37 OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
38 OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
39 OPT_NO_PUBLIC, OPT_CHECK
40} OPTION_CHOICE;
41
42const OPTIONS ec_options[] = {
43 {"help", OPT_HELP, '-', "Display this summary"},
44 {"in", OPT_IN, 's', "Input file"},
45 {"inform", OPT_INFORM, 'f', "Input format - DER or PEM"},
46 {"out", OPT_OUT, '>', "Output file"},
47 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
48 {"noout", OPT_NOOUT, '-', "Don't print key out"},
49 {"text", OPT_TEXT, '-', "Print the key"},
50 {"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
51 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
52 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
53 {"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
54 {"check", OPT_CHECK, '-', "check key consistency"},
55 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
56 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
57 {"param_enc", OPT_PARAM_ENC, 's',
58 "Specifies the way the ec parameters are encoded"},
59 {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
60 {"", OPT_CIPHER, '-', "Any supported cipher"},
61#ifndef OPENSSL_NO_ENGINE
62 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
63#endif
64 {NULL}
65};
66
67int ec_main(int argc, char **argv)
68{
69 BIO *in = NULL, *out = NULL;
70 ENGINE *e = NULL;
71 EC_KEY *eckey = NULL;
72 const EC_GROUP *group;
73 const EVP_CIPHER *enc = NULL;
74 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
75 char *infile = NULL, *outfile = NULL, *prog;
76 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
77 OPTION_CHOICE o;
78 int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
79 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
80 int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
81 int no_public = 0, check = 0;
82
83 prog = opt_init(argc, argv, ec_options);
84 while ((o = opt_next()) != OPT_EOF) {
85 switch (o) {
86 case OPT_EOF:
87 case OPT_ERR:
88 opthelp:
89 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
90 goto end;
91 case OPT_HELP:
92 opt_help(ec_options);
93 ret = 0;
94 goto end;
95 case OPT_INFORM:
96 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
97 goto opthelp;
98 break;
99 case OPT_IN:
100 infile = opt_arg();
101 break;
102 case OPT_OUTFORM:
103 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
104 goto opthelp;
105 break;
106 case OPT_OUT:
107 outfile = opt_arg();
108 break;
109 case OPT_NOOUT:
110 noout = 1;
111 break;
112 case OPT_TEXT:
113 text = 1;
114 break;
115 case OPT_PARAM_OUT:
116 param_out = 1;
117 break;
118 case OPT_PUBIN:
119 pubin = 1;
120 break;
121 case OPT_PUBOUT:
122 pubout = 1;
123 break;
124 case OPT_PASSIN:
125 passinarg = opt_arg();
126 break;
127 case OPT_PASSOUT:
128 passoutarg = opt_arg();
129 break;
130 case OPT_ENGINE:
131 e = setup_engine(opt_arg(), 0);
132 break;
133 case OPT_CIPHER:
134 if (!opt_cipher(opt_unknown(), &enc))
135 goto opthelp;
136 break;
137 case OPT_CONV_FORM:
138 if (!opt_pair(opt_arg(), conv_forms, &i))
139 goto opthelp;
140 new_form = 1;
141 form = i;
142 break;
143 case OPT_PARAM_ENC:
144 if (!opt_pair(opt_arg(), param_enc, &i))
145 goto opthelp;
146 new_asn1_flag = 1;
147 asn1_flag = i;
148 break;
149 case OPT_NO_PUBLIC:
150 no_public = 1;
151 break;
152 case OPT_CHECK:
153 check = 1;
154 break;
155 }
156 }
157 argc = opt_num_rest();
158 if (argc != 0)
159 goto opthelp;
160
161 private = param_out || pubin || pubout ? 0 : 1;
162 if (text && !pubin)
163 private = 1;
164
165 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
166 BIO_printf(bio_err, "Error getting passwords\n");
167 goto end;
168 }
169
170 if (informat != FORMAT_ENGINE) {
171 in = bio_open_default(infile, 'r', informat);
172 if (in == NULL)
173 goto end;
174 }
175
176 BIO_printf(bio_err, "read EC key\n");
177 if (informat == FORMAT_ASN1) {
178 if (pubin)
179 eckey = d2i_EC_PUBKEY_bio(in, NULL);
180 else
181 eckey = d2i_ECPrivateKey_bio(in, NULL);
182 } else if (informat == FORMAT_ENGINE) {
183 EVP_PKEY *pkey;
184 if (pubin)
185 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
186 else
187 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
188 if (pkey != NULL) {
189 eckey = EVP_PKEY_get1_EC_KEY(pkey);
190 EVP_PKEY_free(pkey);
191 }
192 } else {
193 if (pubin)
194 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
195 else
196 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
197 }
198 if (eckey == NULL) {
199 BIO_printf(bio_err, "unable to load Key\n");
200 ERR_print_errors(bio_err);
201 goto end;
202 }
203
204 out = bio_open_owner(outfile, outformat, private);
205 if (out == NULL)
206 goto end;
207
208 group = EC_KEY_get0_group(eckey);
209
210 if (new_form)
211 EC_KEY_set_conv_form(eckey, form);
212
213 if (new_asn1_flag)
214 EC_KEY_set_asn1_flag(eckey, asn1_flag);
215
216 if (no_public)
217 EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
218
219 if (text) {
220 assert(pubin || private);
221 if (!EC_KEY_print(out, eckey, 0)) {
222 perror(outfile);
223 ERR_print_errors(bio_err);
224 goto end;
225 }
226 }
227
228 if (check) {
229 if (EC_KEY_check_key(eckey) == 1) {
230 BIO_printf(bio_err, "EC Key valid.\n");
231 } else {
232 BIO_printf(bio_err, "EC Key Invalid!\n");
233 ERR_print_errors(bio_err);
234 }
235 }
236
237 if (noout) {
238 ret = 0;
239 goto end;
240 }
241
242 BIO_printf(bio_err, "writing EC key\n");
243 if (outformat == FORMAT_ASN1) {
244 if (param_out) {
245 i = i2d_ECPKParameters_bio(out, group);
246 } else if (pubin || pubout) {
247 i = i2d_EC_PUBKEY_bio(out, eckey);
248 } else {
249 assert(private);
250 i = i2d_ECPrivateKey_bio(out, eckey);
251 }
252 } else {
253 if (param_out) {
254 i = PEM_write_bio_ECPKParameters(out, group);
255 } else if (pubin || pubout) {
256 i = PEM_write_bio_EC_PUBKEY(out, eckey);
257 } else {
258 assert(private);
259 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
260 NULL, 0, NULL, passout);
261 }
262 }
263
264 if (!i) {
265 BIO_printf(bio_err, "unable to write private key\n");
266 ERR_print_errors(bio_err);
267 } else {
268 ret = 0;
269 }
270 end:
271 BIO_free(in);
272 BIO_free_all(out);
273 EC_KEY_free(eckey);
274 release_engine(e);
275 OPENSSL_free(passin);
276 OPENSSL_free(passout);
277 return ret;
278}
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