279 lines
8.1 KiB
C
279 lines
8.1 KiB
C
/*
|
|
* Copyright 2002-2020 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>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "apps.h"
|
|
#include "progs.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;
|
|
}
|