1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
|
/*
* Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/opensslconf.h>
#ifdef OPENSSL_NO_EC
NON_EMPTY_TRANSLATION_UNIT
#else
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include "apps.h"
# include <openssl/bio.h>
# include <openssl/err.h>
# include <openssl/evp.h>
# include <openssl/pem.h>
static OPT_PAIR conv_forms[] = {
{"compressed", POINT_CONVERSION_COMPRESSED},
{"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
{"hybrid", POINT_CONVERSION_HYBRID},
{NULL}
};
static OPT_PAIR param_enc[] = {
{"named_curve", OPENSSL_EC_NAMED_CURVE},
{"explicit", 0},
{NULL}
};
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
OPT_NO_PUBLIC, OPT_CHECK
} OPTION_CHOICE;
const OPTIONS ec_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"in", OPT_IN, 's', "Input file"},
{"inform", OPT_INFORM, 'f', "Input format - DER or PEM"},
{"out", OPT_OUT, '>', "Output file"},
{"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
{"noout", OPT_NOOUT, '-', "Don't print key out"},
{"text", OPT_TEXT, '-', "Print the key"},
{"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
{"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
{"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
{"check", OPT_CHECK, '-', "check key consistency"},
{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
{"param_enc", OPT_PARAM_ENC, 's',
"Specifies the way the ec parameters are encoded"},
{"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
{"", OPT_CIPHER, '-', "Any supported cipher"},
# ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
# endif
{NULL}
};
int ec_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
ENGINE *e = NULL;
EC_KEY *eckey = NULL;
const EC_GROUP *group;
const EVP_CIPHER *enc = NULL;
point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
char *infile = NULL, *outfile = NULL, *prog;
char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
OPTION_CHOICE o;
int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
int no_public = 0, check = 0;
prog = opt_init(argc, argv, ec_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(ec_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUTFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
goto opthelp;
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_NOOUT:
noout = 1;
break;
case OPT_TEXT:
text = 1;
break;
case OPT_PARAM_OUT:
param_out = 1;
break;
case OPT_PUBIN:
pubin = 1;
break;
case OPT_PUBOUT:
pubout = 1;
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_PASSOUT:
passoutarg = opt_arg();
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_CIPHER:
if (!opt_cipher(opt_unknown(), &enc))
goto opthelp;
break;
case OPT_CONV_FORM:
if (!opt_pair(opt_arg(), conv_forms, &i))
goto opthelp;
new_form = 1;
form = i;
break;
case OPT_PARAM_ENC:
if (!opt_pair(opt_arg(), param_enc, &i))
goto opthelp;
new_asn1_flag = 1;
asn1_flag = i;
break;
case OPT_NO_PUBLIC:
no_public = 1;
break;
case OPT_CHECK:
check = 1;
break;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
private = param_out || pubin || pubout ? 0 : 1;
if (text && !pubin)
private = 1;
if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
BIO_printf(bio_err, "Error getting passwords\n");
goto end;
}
if (informat != FORMAT_ENGINE) {
in = bio_open_default(infile, 'r', informat);
if (in == NULL)
goto end;
}
BIO_printf(bio_err, "read EC key\n");
if (informat == FORMAT_ASN1) {
if (pubin)
eckey = d2i_EC_PUBKEY_bio(in, NULL);
else
eckey = d2i_ECPrivateKey_bio(in, NULL);
} else if (informat == FORMAT_ENGINE) {
EVP_PKEY *pkey;
if (pubin)
pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
else
pkey = load_key(infile, informat, 1, passin, e, "Private Key");
if (pkey != NULL) {
eckey = EVP_PKEY_get1_EC_KEY(pkey);
EVP_PKEY_free(pkey);
}
} else {
if (pubin)
eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
else
eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
}
if (eckey == NULL) {
BIO_printf(bio_err, "unable to load Key\n");
ERR_print_errors(bio_err);
goto end;
}
out = bio_open_owner(outfile, outformat, private);
if (out == NULL)
goto end;
group = EC_KEY_get0_group(eckey);
if (new_form)
EC_KEY_set_conv_form(eckey, form);
if (new_asn1_flag)
EC_KEY_set_asn1_flag(eckey, asn1_flag);
if (no_public)
EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
if (text) {
assert(pubin || private);
if (!EC_KEY_print(out, eckey, 0)) {
perror(outfile);
ERR_print_errors(bio_err);
goto end;
}
}
if (check) {
if (EC_KEY_check_key(eckey) == 1) {
BIO_printf(bio_err, "EC Key valid.\n");
} else {
BIO_printf(bio_err, "EC Key Invalid!\n");
ERR_print_errors(bio_err);
}
}
if (noout) {
ret = 0;
goto end;
}
BIO_printf(bio_err, "writing EC key\n");
if (outformat == FORMAT_ASN1) {
if (param_out) {
i = i2d_ECPKParameters_bio(out, group);
} else if (pubin || pubout) {
i = i2d_EC_PUBKEY_bio(out, eckey);
} else {
assert(private);
i = i2d_ECPrivateKey_bio(out, eckey);
}
} else {
if (param_out) {
i = PEM_write_bio_ECPKParameters(out, group);
} else if (pubin || pubout) {
i = PEM_write_bio_EC_PUBKEY(out, eckey);
} else {
assert(private);
i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
NULL, 0, NULL, passout);
}
}
if (!i) {
BIO_printf(bio_err, "unable to write private key\n");
ERR_print_errors(bio_err);
} else {
ret = 0;
}
end:
BIO_free(in);
BIO_free_all(out);
EC_KEY_free(eckey);
release_engine(e);
OPENSSL_free(passin);
OPENSSL_free(passout);
return ret;
}
#endif
|
