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source: vbox/trunk/src/libs/openssl-3.1.0/apps/ec.c@ 100111

Last change on this file since 100111 was 99366, checked in by vboxsync, 21 months ago

openssl-3.1.0: Applied and adjusted our OpenSSL changes to 3.0.7. bugref:10418
File size: 9.2 KB
Line 
1/*
2 * Copyright 2002-2022 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 <string.h>
11#include <openssl/opensslconf.h>
12#include <openssl/evp.h>
13#include <openssl/encoder.h>
14#include <openssl/decoder.h>
15#include <openssl/core_names.h>
16#include <openssl/core_dispatch.h>
17#include <openssl/params.h>
18#include <openssl/err.h>
19
20#include "apps.h"
21#include "progs.h"
22#include "ec_common.h"
23
24typedef enum OPTION_choice {
25 OPT_COMMON,
26 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
27 OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
28 OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
29 OPT_NO_PUBLIC, OPT_CHECK, OPT_PROV_ENUM
30} OPTION_CHOICE;
31
32const OPTIONS ec_options[] = {
33 OPT_SECTION("General"),
34 {"help", OPT_HELP, '-', "Display this summary"},
35#ifndef OPENSSL_NO_ENGINE
36 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
37#endif
38
39 OPT_SECTION("Input"),
40 {"in", OPT_IN, 's', "Input file"},
41 {"inform", OPT_INFORM, 'f', "Input format (DER/PEM/P12/ENGINE)"},
42 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
43 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
44 {"check", OPT_CHECK, '-', "check key consistency"},
45 {"", OPT_CIPHER, '-', "Any supported cipher"},
46 {"param_enc", OPT_PARAM_ENC, 's',
47 "Specifies the way the ec parameters are encoded"},
48 {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
49
50 OPT_SECTION("Output"),
51 {"out", OPT_OUT, '>', "Output file"},
52 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
53 {"noout", OPT_NOOUT, '-', "Don't print key out"},
54 {"text", OPT_TEXT, '-', "Print the key"},
55 {"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
56 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
57 {"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
58 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
59
60 OPT_PROV_OPTIONS,
61 {NULL}
62};
63
64int ec_main(int argc, char **argv)
65{
66 OSSL_ENCODER_CTX *ectx = NULL;
67 OSSL_DECODER_CTX *dctx = NULL;
68 EVP_PKEY_CTX *pctx = NULL;
69 EVP_PKEY *eckey = NULL;
70 BIO *out = NULL;
71 ENGINE *e = NULL;
72 EVP_CIPHER *enc = NULL;
73 char *infile = NULL, *outfile = NULL, *ciphername = NULL, *prog;
74 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
75 OPTION_CHOICE o;
76 int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, text = 0, noout = 0;
77 int pubin = 0, pubout = 0, param_out = 0, ret = 1, private = 0;
78 int check = 0;
79 char *asn1_encoding = NULL;
80 char *point_format = NULL;
81 int no_public = 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 ciphername = opt_unknown();
135 break;
136 case OPT_CONV_FORM:
137 point_format = opt_arg();
138 if (!opt_string(point_format, point_format_options))
139 goto opthelp;
140 break;
141 case OPT_PARAM_ENC:
142 asn1_encoding = opt_arg();
143 if (!opt_string(asn1_encoding, asn1_encoding_options))
144 goto opthelp;
145 break;
146 case OPT_NO_PUBLIC:
147 no_public = 1;
148 break;
149 case OPT_CHECK:
150 check = 1;
151 break;
152 case OPT_PROV_CASES:
153 if (!opt_provider(o))
154 goto end;
155 break;
156 }
157 }
158
159 /* No extra arguments. */
160 argc = opt_num_rest();
161 if (argc != 0)
162 goto opthelp;
163
164 if (ciphername != NULL) {
165 if (!opt_cipher(ciphername, &enc))
166 goto opthelp;
167 }
168 private = param_out || pubin || pubout ? 0 : 1;
169 if (text && !pubin)
170 private = 1;
171
172 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
173 BIO_printf(bio_err, "Error getting passwords\n");
174 goto end;
175 }
176
177 BIO_printf(bio_err, "read EC key\n");
178
179 if (pubin)
180 eckey = load_pubkey(infile, informat, 1, passin, e, "public key");
181 else
182 eckey = load_key(infile, informat, 1, passin, e, "private key");
183
184 if (eckey == NULL) {
185 BIO_printf(bio_err, "unable to load Key\n");
186 goto end;
187 }
188
189 out = bio_open_owner(outfile, outformat, private);
190 if (out == NULL)
191 goto end;
192
193 if (point_format
194 && !EVP_PKEY_set_utf8_string_param(
195 eckey, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
196 point_format)) {
197 BIO_printf(bio_err, "unable to set point conversion format\n");
198 goto end;
199 }
200
201 if (asn1_encoding != NULL
202 && !EVP_PKEY_set_utf8_string_param(
203 eckey, OSSL_PKEY_PARAM_EC_ENCODING, asn1_encoding)) {
204 BIO_printf(bio_err, "unable to set asn1 encoding format\n");
205 goto end;
206 }
207
208 if (no_public) {
209 if (!EVP_PKEY_set_int_param(eckey, OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, 0)) {
210 BIO_printf(bio_err, "unable to disable public key encoding\n");
211 goto end;
212 }
213 } else {
214 if (!EVP_PKEY_set_int_param(eckey, OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, 1)) {
215 BIO_printf(bio_err, "unable to enable public key encoding\n");
216 goto end;
217 }
218 }
219
220 if (text) {
221 assert(pubin || private);
222 if ((pubin && EVP_PKEY_print_public(out, eckey, 0, NULL) <= 0)
223 || (!pubin && EVP_PKEY_print_private(out, eckey, 0, NULL) <= 0)) {
224 BIO_printf(bio_err, "unable to print EC key\n");
225 goto end;
226 }
227 }
228
229 if (check) {
230 pctx = EVP_PKEY_CTX_new_from_pkey(NULL, eckey, NULL);
231 if (pctx == NULL) {
232 BIO_printf(bio_err, "unable to check EC key\n");
233 goto end;
234 }
235 if (EVP_PKEY_check(pctx) <= 0)
236 BIO_printf(bio_err, "EC Key Invalid!\n");
237 else
238 BIO_printf(bio_err, "EC Key valid.\n");
239 ERR_print_errors(bio_err);
240 }
241
242 if (!noout) {
243 int selection;
244 const char *output_type = outformat == FORMAT_ASN1 ? "DER" : "PEM";
245 const char *output_structure = "type-specific";
246
247 BIO_printf(bio_err, "writing EC key\n");
248 if (param_out) {
249 selection = OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS;
250 } else if (pubin || pubout) {
251 selection = OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS
252 | OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
253 output_structure = "SubjectPublicKeyInfo";
254 } else {
255 selection = OSSL_KEYMGMT_SELECT_ALL;
256 assert(private);
257 }
258
259 ectx = OSSL_ENCODER_CTX_new_for_pkey(eckey, selection,
260 output_type, output_structure,
261 NULL);
262 if (enc != NULL) {
263 OSSL_ENCODER_CTX_set_cipher(ectx, EVP_CIPHER_get0_name(enc), NULL);
264 /* Default passphrase prompter */
265 OSSL_ENCODER_CTX_set_passphrase_ui(ectx, get_ui_method(), NULL);
266 if (passout != NULL)
267 /* When passout given, override the passphrase prompter */
268 OSSL_ENCODER_CTX_set_passphrase(ectx,
269 (const unsigned char *)passout,
270 strlen(passout));
271 }
272 if (!OSSL_ENCODER_to_bio(ectx, out)) {
273 BIO_printf(bio_err, "unable to write EC key\n");
274 goto end;
275 }
276 }
277
278 ret = 0;
279end:
280 if (ret != 0)
281 ERR_print_errors(bio_err);
282 BIO_free_all(out);
283 EVP_PKEY_free(eckey);
284 EVP_CIPHER_free(enc);
285 OSSL_ENCODER_CTX_free(ectx);
286 OSSL_DECODER_CTX_free(dctx);
287 EVP_PKEY_CTX_free(pctx);
288 release_engine(e);
289 if (passin != NULL)
290 OPENSSL_clear_free(passin, strlen(passin));
291 if (passout != NULL)
292 OPENSSL_clear_free(passout, strlen(passout));
293 return ret;
294}
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