2 * Copyright 2002-2016 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
19 # include <openssl/bio.h>
20 # include <openssl/err.h>
21 # include <openssl/evp.h>
22 # include <openssl/pem.h>
24 static OPT_PAIR conv_forms[] = {
25 {"compressed", POINT_CONVERSION_COMPRESSED},
26 {"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
27 {"hybrid", POINT_CONVERSION_HYBRID},
31 static OPT_PAIR param_enc[] = {
32 {"named_curve", OPENSSL_EC_NAMED_CURVE},
37 typedef enum OPTION_choice {
38 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
39 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
40 OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
41 OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
42 OPT_NO_PUBLIC, OPT_CHECK
45 OPTIONS ec_options[] = {
46 {"help", OPT_HELP, '-', "Display this summary"},
47 {"in", OPT_IN, 's', "Input file"},
48 {"inform", OPT_INFORM, 'f', "Input format - DER or PEM"},
49 {"out", OPT_OUT, '>', "Output file"},
50 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
51 {"noout", OPT_NOOUT, '-', "Don't print key out"},
52 {"text", OPT_TEXT, '-', "Print the key"},
53 {"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
54 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
55 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
56 {"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
57 {"check", OPT_CHECK, '-', "check key consistency"},
58 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
59 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
60 {"param_enc", OPT_PARAM_ENC, 's',
61 "Specifies the way the ec parameters are encoded"},
62 {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
63 {"", OPT_CIPHER, '-', "Any supported cipher"},
64 # ifndef OPENSSL_NO_ENGINE
65 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
70 int ec_main(int argc, char **argv)
72 BIO *in = NULL, *out = NULL;
75 const EC_GROUP *group;
76 const EVP_CIPHER *enc = NULL;
77 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
78 char *infile = NULL, *outfile = NULL, *prog;
79 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
81 int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
82 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
83 int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
84 int no_public = 0, check = 0;
86 prog = opt_init(argc, argv, ec_options);
87 while ((o = opt_next()) != OPT_EOF) {
92 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
99 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
106 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
128 passinarg = opt_arg();
131 passoutarg = opt_arg();
134 e = setup_engine(opt_arg(), 0);
137 if (!opt_cipher(opt_unknown(), &enc))
141 if (!opt_pair(opt_arg(), conv_forms, &i))
147 if (!opt_pair(opt_arg(), param_enc, &i))
160 argc = opt_num_rest();
164 private = param_out || pubin || pubout ? 0 : 1;
168 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
169 BIO_printf(bio_err, "Error getting passwords\n");
173 if (informat != FORMAT_ENGINE) {
174 in = bio_open_default(infile, 'r', informat);
179 BIO_printf(bio_err, "read EC key\n");
180 if (informat == FORMAT_ASN1) {
182 eckey = d2i_EC_PUBKEY_bio(in, NULL);
184 eckey = d2i_ECPrivateKey_bio(in, NULL);
185 } else if (informat == FORMAT_ENGINE) {
188 pkey = load_pubkey(infile, informat , 1, passin, e, "Public Key");
190 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
192 eckey = EVP_PKEY_get1_EC_KEY(pkey);
197 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
199 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
202 BIO_printf(bio_err, "unable to load Key\n");
203 ERR_print_errors(bio_err);
207 out = bio_open_owner(outfile, outformat, private);
211 group = EC_KEY_get0_group(eckey);
214 EC_KEY_set_conv_form(eckey, form);
217 EC_KEY_set_asn1_flag(eckey, asn1_flag);
220 EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
223 assert(pubin || private);
224 if (!EC_KEY_print(out, eckey, 0)) {
226 ERR_print_errors(bio_err);
232 if (EC_KEY_check_key(eckey) == 1) {
233 BIO_printf(bio_err, "EC Key valid.\n");
235 BIO_printf(bio_err, "EC Key Invalid!\n");
236 ERR_print_errors(bio_err);
245 BIO_printf(bio_err, "writing EC key\n");
246 if (outformat == FORMAT_ASN1) {
248 i = i2d_ECPKParameters_bio(out, group);
249 else if (pubin || pubout)
250 i = i2d_EC_PUBKEY_bio(out, eckey);
253 i = i2d_ECPrivateKey_bio(out, eckey);
257 i = PEM_write_bio_ECPKParameters(out, group);
258 else if (pubin || pubout)
259 i = PEM_write_bio_EC_PUBKEY(out, eckey);
262 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
263 NULL, 0, NULL, passout);
268 BIO_printf(bio_err, "unable to write private key\n");
269 ERR_print_errors(bio_err);
276 OPENSSL_free(passin);
277 OPENSSL_free(passout);