2 * Copyright 2002-2018 The OpenSSL Project Authors. All Rights Reserved.
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
10 #include <openssl/opensslconf.h>
12 NON_EMPTY_TRANSLATION_UNIT
20 # include <openssl/bio.h>
21 # include <openssl/err.h>
22 # include <openssl/evp.h>
23 # include <openssl/pem.h>
25 static OPT_PAIR conv_forms[] = {
26 {"compressed", POINT_CONVERSION_COMPRESSED},
27 {"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
28 {"hybrid", POINT_CONVERSION_HYBRID},
32 static OPT_PAIR param_enc[] = {
33 {"named_curve", OPENSSL_EC_NAMED_CURVE},
38 typedef 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
46 const 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"},
71 int ec_main(int argc, char **argv)
73 BIO *in = NULL, *out = 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;
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;
87 prog = opt_init(argc, argv, ec_options);
88 while ((o = opt_next()) != OPT_EOF) {
93 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
100 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
107 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
129 passinarg = opt_arg();
132 passoutarg = opt_arg();
135 e = setup_engine(opt_arg(), 0);
138 if (!opt_cipher(opt_unknown(), &enc))
142 if (!opt_pair(opt_arg(), conv_forms, &i))
148 if (!opt_pair(opt_arg(), param_enc, &i))
161 argc = opt_num_rest();
165 private = param_out || pubin || pubout ? 0 : 1;
169 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
170 BIO_printf(bio_err, "Error getting passwords\n");
174 if (informat != FORMAT_ENGINE) {
175 in = bio_open_default(infile, 'r', informat);
180 BIO_printf(bio_err, "read EC key\n");
181 if (informat == FORMAT_ASN1) {
183 eckey = d2i_EC_PUBKEY_bio(in, NULL);
185 eckey = d2i_ECPrivateKey_bio(in, NULL);
186 } else if (informat == FORMAT_ENGINE) {
189 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
191 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
193 eckey = EVP_PKEY_get1_EC_KEY(pkey);
198 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
200 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
203 BIO_printf(bio_err, "unable to load Key\n");
204 ERR_print_errors(bio_err);
208 out = bio_open_owner(outfile, outformat, private);
212 group = EC_KEY_get0_group(eckey);
215 EC_KEY_set_conv_form(eckey, form);
218 EC_KEY_set_asn1_flag(eckey, asn1_flag);
221 EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
224 assert(pubin || private);
225 if (!EC_KEY_print(out, eckey, 0)) {
227 ERR_print_errors(bio_err);
233 if (EC_KEY_check_key(eckey) == 1) {
234 BIO_printf(bio_err, "EC Key valid.\n");
236 BIO_printf(bio_err, "EC Key Invalid!\n");
237 ERR_print_errors(bio_err);
246 BIO_printf(bio_err, "writing EC key\n");
247 if (outformat == FORMAT_ASN1) {
249 i = i2d_ECPKParameters_bio(out, group);
250 } else if (pubin || pubout) {
251 i = i2d_EC_PUBKEY_bio(out, eckey);
254 i = i2d_ECPrivateKey_bio(out, eckey);
258 i = PEM_write_bio_ECPKParameters(out, group);
259 } else if (pubin || pubout) {
260 i = PEM_write_bio_EC_PUBKEY(out, eckey);
263 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
264 NULL, 0, NULL, passout);
269 BIO_printf(bio_err, "unable to write private key\n");
270 ERR_print_errors(bio_err);
279 OPENSSL_free(passin);
280 OPENSSL_free(passout);