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source: vbox/trunk/src/libs/openssl-1.1.1f/apps/ec.c@ 83531

Last change on this file since 83531 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: 8.2 KB
Line 
1/*
2 * Copyright 2002-2018 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_EC
12NON_EMPTY_TRANSLATION_UNIT
13#else
14
15# include <stdio.h>
16# include <stdlib.h>
17# include <string.h>
18# include "apps.h"
19# include "progs.h"
20# include <openssl/bio.h>
21# include <openssl/err.h>
22# include <openssl/evp.h>
23# include <openssl/pem.h>
24
25static OPT_PAIR conv_forms[] = {
26 {"compressed", POINT_CONVERSION_COMPRESSED},
27 {"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
28 {"hybrid", POINT_CONVERSION_HYBRID},
29 {NULL}
30};
31
32static OPT_PAIR param_enc[] = {
33 {"named_curve", OPENSSL_EC_NAMED_CURVE},
34 {"explicit", 0},
35 {NULL}
36};
37
38typedef enum OPTION_choice {
39 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
40 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
41 OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
42 OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
43 OPT_NO_PUBLIC, OPT_CHECK
44} OPTION_CHOICE;
45
46const OPTIONS ec_options[] = {
47 {"help", OPT_HELP, '-', "Display this summary"},
48 {"in", OPT_IN, 's', "Input file"},
49 {"inform", OPT_INFORM, 'f', "Input format - DER or PEM"},
50 {"out", OPT_OUT, '>', "Output file"},
51 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
52 {"noout", OPT_NOOUT, '-', "Don't print key out"},
53 {"text", OPT_TEXT, '-', "Print the key"},
54 {"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
55 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
56 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
57 {"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
58 {"check", OPT_CHECK, '-', "check key consistency"},
59 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
60 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
61 {"param_enc", OPT_PARAM_ENC, 's',
62 "Specifies the way the ec parameters are encoded"},
63 {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
64 {"", OPT_CIPHER, '-', "Any supported cipher"},
65# ifndef OPENSSL_NO_ENGINE
66 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
67# endif
68 {NULL}
69};
70
71int ec_main(int argc, char **argv)
72{
73 BIO *in = NULL, *out = NULL;
74 ENGINE *e = NULL;
75 EC_KEY *eckey = NULL;
76 const EC_GROUP *group;
77 const EVP_CIPHER *enc = NULL;
78 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
79 char *infile = NULL, *outfile = NULL, *prog;
80 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
81 OPTION_CHOICE o;
82 int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
83 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
84 int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
85 int no_public = 0, check = 0;
86
87 prog = opt_init(argc, argv, ec_options);
88 while ((o = opt_next()) != OPT_EOF) {
89 switch (o) {
90 case OPT_EOF:
91 case OPT_ERR:
92 opthelp:
93 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
94 goto end;
95 case OPT_HELP:
96 opt_help(ec_options);
97 ret = 0;
98 goto end;
99 case OPT_INFORM:
100 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
101 goto opthelp;
102 break;
103 case OPT_IN:
104 infile = opt_arg();
105 break;
106 case OPT_OUTFORM:
107 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
108 goto opthelp;
109 break;
110 case OPT_OUT:
111 outfile = opt_arg();
112 break;
113 case OPT_NOOUT:
114 noout = 1;
115 break;
116 case OPT_TEXT:
117 text = 1;
118 break;
119 case OPT_PARAM_OUT:
120 param_out = 1;
121 break;
122 case OPT_PUBIN:
123 pubin = 1;
124 break;
125 case OPT_PUBOUT:
126 pubout = 1;
127 break;
128 case OPT_PASSIN:
129 passinarg = opt_arg();
130 break;
131 case OPT_PASSOUT:
132 passoutarg = opt_arg();
133 break;
134 case OPT_ENGINE:
135 e = setup_engine(opt_arg(), 0);
136 break;
137 case OPT_CIPHER:
138 if (!opt_cipher(opt_unknown(), &enc))
139 goto opthelp;
140 break;
141 case OPT_CONV_FORM:
142 if (!opt_pair(opt_arg(), conv_forms, &i))
143 goto opthelp;
144 new_form = 1;
145 form = i;
146 break;
147 case OPT_PARAM_ENC:
148 if (!opt_pair(opt_arg(), param_enc, &i))
149 goto opthelp;
150 new_asn1_flag = 1;
151 asn1_flag = i;
152 break;
153 case OPT_NO_PUBLIC:
154 no_public = 1;
155 break;
156 case OPT_CHECK:
157 check = 1;
158 break;
159 }
160 }
161 argc = opt_num_rest();
162 if (argc != 0)
163 goto opthelp;
164
165 private = param_out || pubin || pubout ? 0 : 1;
166 if (text && !pubin)
167 private = 1;
168
169 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
170 BIO_printf(bio_err, "Error getting passwords\n");
171 goto end;
172 }
173
174 if (informat != FORMAT_ENGINE) {
175 in = bio_open_default(infile, 'r', informat);
176 if (in == NULL)
177 goto end;
178 }
179
180 BIO_printf(bio_err, "read EC key\n");
181 if (informat == FORMAT_ASN1) {
182 if (pubin)
183 eckey = d2i_EC_PUBKEY_bio(in, NULL);
184 else
185 eckey = d2i_ECPrivateKey_bio(in, NULL);
186 } else if (informat == FORMAT_ENGINE) {
187 EVP_PKEY *pkey;
188 if (pubin)
189 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
190 else
191 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
192 if (pkey != NULL) {
193 eckey = EVP_PKEY_get1_EC_KEY(pkey);
194 EVP_PKEY_free(pkey);
195 }
196 } else {
197 if (pubin)
198 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
199 else
200 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
201 }
202 if (eckey == NULL) {
203 BIO_printf(bio_err, "unable to load Key\n");
204 ERR_print_errors(bio_err);
205 goto end;
206 }
207
208 out = bio_open_owner(outfile, outformat, private);
209 if (out == NULL)
210 goto end;
211
212 group = EC_KEY_get0_group(eckey);
213
214 if (new_form)
215 EC_KEY_set_conv_form(eckey, form);
216
217 if (new_asn1_flag)
218 EC_KEY_set_asn1_flag(eckey, asn1_flag);
219
220 if (no_public)
221 EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
222
223 if (text) {
224 assert(pubin || private);
225 if (!EC_KEY_print(out, eckey, 0)) {
226 perror(outfile);
227 ERR_print_errors(bio_err);
228 goto end;
229 }
230 }
231
232 if (check) {
233 if (EC_KEY_check_key(eckey) == 1) {
234 BIO_printf(bio_err, "EC Key valid.\n");
235 } else {
236 BIO_printf(bio_err, "EC Key Invalid!\n");
237 ERR_print_errors(bio_err);
238 }
239 }
240
241 if (noout) {
242 ret = 0;
243 goto end;
244 }
245
246 BIO_printf(bio_err, "writing EC key\n");
247 if (outformat == FORMAT_ASN1) {
248 if (param_out) {
249 i = i2d_ECPKParameters_bio(out, group);
250 } else if (pubin || pubout) {
251 i = i2d_EC_PUBKEY_bio(out, eckey);
252 } else {
253 assert(private);
254 i = i2d_ECPrivateKey_bio(out, eckey);
255 }
256 } else {
257 if (param_out) {
258 i = PEM_write_bio_ECPKParameters(out, group);
259 } else if (pubin || pubout) {
260 i = PEM_write_bio_EC_PUBKEY(out, eckey);
261 } else {
262 assert(private);
263 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
264 NULL, 0, NULL, passout);
265 }
266 }
267
268 if (!i) {
269 BIO_printf(bio_err, "unable to write private key\n");
270 ERR_print_errors(bio_err);
271 } else {
272 ret = 0;
273 }
274 end:
275 BIO_free(in);
276 BIO_free_all(out);
277 EC_KEY_free(eckey);
278 release_engine(e);
279 OPENSSL_free(passin);
280 OPENSSL_free(passout);
281 return ret;
282}
283#endif
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