668 lines
23 KiB
C
668 lines
23 KiB
C
|
/* apps/ecparam.c */
|
||
|
|
/*
|
||
|
|
* Written by Nils Larsch for the OpenSSL project.
|
||
|
|
*/
|
||
|
|
/* ====================================================================
|
||
|
|
* Copyright (c) 1998-2018 The OpenSSL Project. All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
*
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in
|
||
|
|
* the documentation and/or other materials provided with the
|
||
|
|
* distribution.
|
||
|
|
*
|
||
|
|
* 3. All advertising materials mentioning features or use of this
|
||
|
|
* software must display the following acknowledgment:
|
||
|
|
* "This product includes software developed by the OpenSSL Project
|
||
|
|
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
|
||
|
|
*
|
||
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
||
|
|
* endorse or promote products derived from this software without
|
||
|
|
* prior written permission. For written permission, please contact
|
||
|
|
* openssl-core@openssl.org.
|
||
|
|
*
|
||
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
||
|
|
* nor may "OpenSSL" appear in their names without prior written
|
||
|
|
* permission of the OpenSSL Project.
|
||
|
|
*
|
||
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
||
|
|
* acknowledgment:
|
||
|
|
* "This product includes software developed by the OpenSSL Project
|
||
|
|
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
||
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
||
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
* ====================================================================
|
||
|
|
*
|
||
|
|
* This product includes cryptographic software written by Eric Young
|
||
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
||
|
|
* Hudson (tjh@cryptsoft.com).
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/* ====================================================================
|
||
|
|
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
|
||
|
|
*
|
||
|
|
* Portions of the attached software ("Contribution") are developed by
|
||
|
|
* SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
|
||
|
|
*
|
||
|
|
* The Contribution is licensed pursuant to the OpenSSL open source
|
||
|
|
* license provided above.
|
||
|
|
*
|
||
|
|
* The elliptic curve binary polynomial software is originally written by
|
||
|
|
* Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <openssl/opensslconf.h>
|
||
|
|
#ifndef OPENSSL_NO_EC
|
||
|
|
# include <assert.h>
|
||
|
|
# include <stdio.h>
|
||
|
|
# include <stdlib.h>
|
||
|
|
# include <time.h>
|
||
|
|
# include <string.h>
|
||
|
|
# include "apps.h"
|
||
|
|
# include <openssl/bio.h>
|
||
|
|
# include <openssl/err.h>
|
||
|
|
# include <openssl/bn.h>
|
||
|
|
# include <openssl/ec.h>
|
||
|
|
# include <openssl/x509.h>
|
||
|
|
# include <openssl/pem.h>
|
||
|
|
|
||
|
|
# undef PROG
|
||
|
|
# define PROG ecparam_main
|
||
|
|
|
||
|
|
/*-
|
||
|
|
* -inform arg - input format - default PEM (DER or PEM)
|
||
|
|
* -outform arg - output format - default PEM
|
||
|
|
* -in arg - input file - default stdin
|
||
|
|
* -out arg - output file - default stdout
|
||
|
|
* -noout - do not print the ec parameter
|
||
|
|
* -text - print the ec parameters in text form
|
||
|
|
* -check - validate the ec parameters
|
||
|
|
* -C - print a 'C' function creating the parameters
|
||
|
|
* -name arg - use the ec parameters with 'short name' name
|
||
|
|
* -list_curves - prints a list of all currently available curve 'short names'
|
||
|
|
* -conv_form arg - specifies the point conversion form
|
||
|
|
* - possible values: compressed
|
||
|
|
* uncompressed (default)
|
||
|
|
* hybrid
|
||
|
|
* -param_enc arg - specifies the way the ec parameters are encoded
|
||
|
|
* in the asn1 der encoding
|
||
|
|
* possible values: named_curve (default)
|
||
|
|
* explicit
|
||
|
|
* -no_seed - if 'explicit' parameters are chosen do not use the seed
|
||
|
|
* -genkey - generate ec key
|
||
|
|
* -rand file - files to use for random number input
|
||
|
|
* -engine e - use engine e, possibly a hardware device
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int ecparam_print_var(BIO *, BIGNUM *, const char *, int,
|
||
|
|
unsigned char *);
|
||
|
|
|
||
|
|
int MAIN(int, char **);
|
||
|
|
|
||
|
|
int MAIN(int argc, char **argv)
|
||
|
|
{
|
||
|
|
EC_GROUP *group = NULL;
|
||
|
|
point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
|
||
|
|
int new_form = 0;
|
||
|
|
int asn1_flag = OPENSSL_EC_NAMED_CURVE;
|
||
|
|
int new_asn1_flag = 0;
|
||
|
|
char *curve_name = NULL, *inrand = NULL;
|
||
|
|
int list_curves = 0, no_seed = 0, check = 0,
|
||
|
|
badops = 0, text = 0, i, need_rand = 0, genkey = 0;
|
||
|
|
char *infile = NULL, *outfile = NULL, *prog;
|
||
|
|
BIO *in = NULL, *out = NULL;
|
||
|
|
int informat, outformat, noout = 0, C = 0, ret = 1;
|
||
|
|
char *engine = NULL;
|
||
|
|
ENGINE *e = NULL;
|
||
|
|
|
||
|
|
BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL,
|
||
|
|
*ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL;
|
||
|
|
unsigned char *buffer = NULL;
|
||
|
|
|
||
|
|
apps_startup();
|
||
|
|
|
||
|
|
if (bio_err == NULL)
|
||
|
|
if ((bio_err = BIO_new(BIO_s_file())) != NULL)
|
||
|
|
BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
|
||
|
|
|
||
|
|
if (!load_config(bio_err, NULL))
|
||
|
|
goto end;
|
||
|
|
|
||
|
|
informat = FORMAT_PEM;
|
||
|
|
outformat = FORMAT_PEM;
|
||
|
|
|
||
|
|
prog = argv[0];
|
||
|
|
argc--;
|
||
|
|
argv++;
|
||
|
|
while (argc >= 1) {
|
||
|
|
if (strcmp(*argv, "-inform") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
informat = str2fmt(*(++argv));
|
||
|
|
} else if (strcmp(*argv, "-outform") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
outformat = str2fmt(*(++argv));
|
||
|
|
} else if (strcmp(*argv, "-in") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
infile = *(++argv);
|
||
|
|
} else if (strcmp(*argv, "-out") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
outfile = *(++argv);
|
||
|
|
} else if (strcmp(*argv, "-text") == 0)
|
||
|
|
text = 1;
|
||
|
|
else if (strcmp(*argv, "-C") == 0)
|
||
|
|
C = 1;
|
||
|
|
else if (strcmp(*argv, "-check") == 0)
|
||
|
|
check = 1;
|
||
|
|
else if (strcmp(*argv, "-name") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
curve_name = *(++argv);
|
||
|
|
} else if (strcmp(*argv, "-list_curves") == 0)
|
||
|
|
list_curves = 1;
|
||
|
|
else if (strcmp(*argv, "-conv_form") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
++argv;
|
||
|
|
new_form = 1;
|
||
|
|
if (strcmp(*argv, "compressed") == 0)
|
||
|
|
form = POINT_CONVERSION_COMPRESSED;
|
||
|
|
else if (strcmp(*argv, "uncompressed") == 0)
|
||
|
|
form = POINT_CONVERSION_UNCOMPRESSED;
|
||
|
|
else if (strcmp(*argv, "hybrid") == 0)
|
||
|
|
form = POINT_CONVERSION_HYBRID;
|
||
|
|
else
|
||
|
|
goto bad;
|
||
|
|
} else if (strcmp(*argv, "-param_enc") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
++argv;
|
||
|
|
new_asn1_flag = 1;
|
||
|
|
if (strcmp(*argv, "named_curve") == 0)
|
||
|
|
asn1_flag = OPENSSL_EC_NAMED_CURVE;
|
||
|
|
else if (strcmp(*argv, "explicit") == 0)
|
||
|
|
asn1_flag = 0;
|
||
|
|
else
|
||
|
|
goto bad;
|
||
|
|
} else if (strcmp(*argv, "-no_seed") == 0)
|
||
|
|
no_seed = 1;
|
||
|
|
else if (strcmp(*argv, "-noout") == 0)
|
||
|
|
noout = 1;
|
||
|
|
else if (strcmp(*argv, "-genkey") == 0) {
|
||
|
|
genkey = 1;
|
||
|
|
need_rand = 1;
|
||
|
|
} else if (strcmp(*argv, "-rand") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
inrand = *(++argv);
|
||
|
|
need_rand = 1;
|
||
|
|
} else if (strcmp(*argv, "-engine") == 0) {
|
||
|
|
if (--argc < 1)
|
||
|
|
goto bad;
|
||
|
|
engine = *(++argv);
|
||
|
|
} else {
|
||
|
|
BIO_printf(bio_err, "unknown option %s\n", *argv);
|
||
|
|
badops = 1;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
argc--;
|
||
|
|
argv++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (badops) {
|
||
|
|
bad:
|
||
|
|
BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
|
||
|
|
BIO_printf(bio_err, "where options are\n");
|
||
|
|
BIO_printf(bio_err, " -inform arg input format - "
|
||
|
|
"default PEM (DER or PEM)\n");
|
||
|
|
BIO_printf(bio_err, " -outform arg output format - "
|
||
|
|
"default PEM\n");
|
||
|
|
BIO_printf(bio_err, " -in arg input file - "
|
||
|
|
"default stdin\n");
|
||
|
|
BIO_printf(bio_err, " -out arg output file - "
|
||
|
|
"default stdout\n");
|
||
|
|
BIO_printf(bio_err, " -noout do not print the "
|
||
|
|
"ec parameter\n");
|
||
|
|
BIO_printf(bio_err, " -text print the ec "
|
||
|
|
"parameters in text form\n");
|
||
|
|
BIO_printf(bio_err, " -check validate the ec "
|
||
|
|
"parameters\n");
|
||
|
|
BIO_printf(bio_err, " -C print a 'C' "
|
||
|
|
"function creating the parameters\n");
|
||
|
|
BIO_printf(bio_err, " -name arg use the "
|
||
|
|
"ec parameters with 'short name' name\n");
|
||
|
|
BIO_printf(bio_err, " -list_curves prints a list of "
|
||
|
|
"all currently available curve 'short names'\n");
|
||
|
|
BIO_printf(bio_err, " -conv_form arg specifies the "
|
||
|
|
"point conversion form \n");
|
||
|
|
BIO_printf(bio_err, " possible values:"
|
||
|
|
" compressed\n");
|
||
|
|
BIO_printf(bio_err, " "
|
||
|
|
" uncompressed (default)\n");
|
||
|
|
BIO_printf(bio_err, " "
|
||
|
|
" hybrid\n");
|
||
|
|
BIO_printf(bio_err, " -param_enc arg specifies the way"
|
||
|
|
" the ec parameters are encoded\n");
|
||
|
|
BIO_printf(bio_err, " in the asn1 der "
|
||
|
|
"encoding\n");
|
||
|
|
BIO_printf(bio_err, " possible values:"
|
||
|
|
" named_curve (default)\n");
|
||
|
|
BIO_printf(bio_err, " "
|
||
|
|
" explicit\n");
|
||
|
|
BIO_printf(bio_err, " -no_seed if 'explicit'"
|
||
|
|
" parameters are chosen do not" " use the seed\n");
|
||
|
|
BIO_printf(bio_err, " -genkey generate ec" " key\n");
|
||
|
|
BIO_printf(bio_err, " -rand file files to use for"
|
||
|
|
" random number input\n");
|
||
|
|
BIO_printf(bio_err, " -engine e use engine e, "
|
||
|
|
"possibly a hardware device\n");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
ERR_load_crypto_strings();
|
||
|
|
|
||
|
|
in = BIO_new(BIO_s_file());
|
||
|
|
out = BIO_new(BIO_s_file());
|
||
|
|
if ((in == NULL) || (out == NULL)) {
|
||
|
|
ERR_print_errors(bio_err);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (infile == NULL)
|
||
|
|
BIO_set_fp(in, stdin, BIO_NOCLOSE);
|
||
|
|
else {
|
||
|
|
if (BIO_read_filename(in, infile) <= 0) {
|
||
|
|
perror(infile);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (outfile == NULL) {
|
||
|
|
BIO_set_fp(out, stdout, BIO_NOCLOSE);
|
||
|
|
# ifdef OPENSSL_SYS_VMS
|
||
|
|
{
|
||
|
|
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
|
||
|
|
out = BIO_push(tmpbio, out);
|
||
|
|
}
|
||
|
|
# endif
|
||
|
|
} else {
|
||
|
|
if (BIO_write_filename(out, outfile) <= 0) {
|
||
|
|
perror(outfile);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
e = setup_engine(bio_err, engine, 0);
|
||
|
|
|
||
|
|
if (list_curves) {
|
||
|
|
EC_builtin_curve *curves = NULL;
|
||
|
|
size_t crv_len = 0;
|
||
|
|
size_t n = 0;
|
||
|
|
|
||
|
|
crv_len = EC_get_builtin_curves(NULL, 0);
|
||
|
|
|
||
|
|
curves = OPENSSL_malloc((int)(sizeof(EC_builtin_curve) * crv_len));
|
||
|
|
|
||
|
|
if (curves == NULL)
|
||
|
|
goto end;
|
||
|
|
|
||
|
|
if (!EC_get_builtin_curves(curves, crv_len)) {
|
||
|
|
OPENSSL_free(curves);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (n = 0; n < crv_len; n++) {
|
||
|
|
const char *comment;
|
||
|
|
const char *sname;
|
||
|
|
comment = curves[n].comment;
|
||
|
|
sname = OBJ_nid2sn(curves[n].nid);
|
||
|
|
if (comment == NULL)
|
||
|
|
comment = "CURVE DESCRIPTION NOT AVAILABLE";
|
||
|
|
if (sname == NULL)
|
||
|
|
sname = "";
|
||
|
|
|
||
|
|
BIO_printf(out, " %-10s: ", sname);
|
||
|
|
BIO_printf(out, "%s\n", comment);
|
||
|
|
}
|
||
|
|
|
||
|
|
OPENSSL_free(curves);
|
||
|
|
ret = 0;
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (curve_name != NULL) {
|
||
|
|
int nid;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* workaround for the SECG curve names secp192r1 and secp256r1 (which
|
||
|
|
* are the same as the curves prime192v1 and prime256v1 defined in
|
||
|
|
* X9.62)
|
||
|
|
*/
|
||
|
|
if (!strcmp(curve_name, "secp192r1")) {
|
||
|
|
BIO_printf(bio_err, "using curve name prime192v1 "
|
||
|
|
"instead of secp192r1\n");
|
||
|
|
nid = NID_X9_62_prime192v1;
|
||
|
|
} else if (!strcmp(curve_name, "secp256r1")) {
|
||
|
|
BIO_printf(bio_err, "using curve name prime256v1 "
|
||
|
|
"instead of secp256r1\n");
|
||
|
|
nid = NID_X9_62_prime256v1;
|
||
|
|
} else
|
||
|
|
nid = OBJ_sn2nid(curve_name);
|
||
|
|
|
||
|
|
if (nid == 0)
|
||
|
|
nid = EC_curve_nist2nid(curve_name);
|
||
|
|
|
||
|
|
if (nid == 0) {
|
||
|
|
BIO_printf(bio_err, "unknown curve name (%s)\n", curve_name);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
group = EC_GROUP_new_by_curve_name(nid);
|
||
|
|
if (group == NULL) {
|
||
|
|
BIO_printf(bio_err, "unable to create curve (%s)\n", curve_name);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
EC_GROUP_set_asn1_flag(group, asn1_flag);
|
||
|
|
EC_GROUP_set_point_conversion_form(group, form);
|
||
|
|
} else if (informat == FORMAT_ASN1) {
|
||
|
|
group = d2i_ECPKParameters_bio(in, NULL);
|
||
|
|
} else if (informat == FORMAT_PEM) {
|
||
|
|
group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL);
|
||
|
|
} else {
|
||
|
|
BIO_printf(bio_err, "bad input format specified\n");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (group == NULL) {
|
||
|
|
BIO_printf(bio_err, "unable to load elliptic curve parameters\n");
|
||
|
|
ERR_print_errors(bio_err);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (new_form)
|
||
|
|
EC_GROUP_set_point_conversion_form(group, form);
|
||
|
|
|
||
|
|
if (new_asn1_flag)
|
||
|
|
EC_GROUP_set_asn1_flag(group, asn1_flag);
|
||
|
|
|
||
|
|
if (no_seed) {
|
||
|
|
EC_GROUP_set_seed(group, NULL, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (text) {
|
||
|
|
if (!ECPKParameters_print(out, group, 0))
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (check) {
|
||
|
|
BIO_printf(bio_err, "checking elliptic curve parameters: ");
|
||
|
|
if (!EC_GROUP_check(group, NULL)) {
|
||
|
|
BIO_printf(bio_err, "failed\n");
|
||
|
|
ERR_print_errors(bio_err);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
BIO_printf(bio_err, "ok\n");
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if (C) {
|
||
|
|
size_t buf_len = 0, tmp_len = 0;
|
||
|
|
const EC_POINT *point;
|
||
|
|
int is_prime, len = 0;
|
||
|
|
const EC_METHOD *meth = EC_GROUP_method_of(group);
|
||
|
|
|
||
|
|
if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL ||
|
||
|
|
(ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL ||
|
||
|
|
(ec_order = BN_new()) == NULL ||
|
||
|
|
(ec_cofactor = BN_new()) == NULL) {
|
||
|
|
perror("OPENSSL_malloc");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field);
|
||
|
|
|
||
|
|
if (is_prime) {
|
||
|
|
if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, ec_b, NULL))
|
||
|
|
goto end;
|
||
|
|
} else {
|
||
|
|
/* TODO */
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((point = EC_GROUP_get0_generator(group)) == NULL)
|
||
|
|
goto end;
|
||
|
|
if (!EC_POINT_point2bn(group, point,
|
||
|
|
EC_GROUP_get_point_conversion_form(group),
|
||
|
|
ec_gen, NULL))
|
||
|
|
goto end;
|
||
|
|
if (!EC_GROUP_get_order(group, ec_order, NULL))
|
||
|
|
goto end;
|
||
|
|
if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL))
|
||
|
|
goto end;
|
||
|
|
|
||
|
|
if (!ec_p || !ec_a || !ec_b || !ec_gen || !ec_order || !ec_cofactor)
|
||
|
|
goto end;
|
||
|
|
|
||
|
|
len = BN_num_bits(ec_order);
|
||
|
|
|
||
|
|
if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len)
|
||
|
|
buf_len = tmp_len;
|
||
|
|
if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len)
|
||
|
|
buf_len = tmp_len;
|
||
|
|
if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len)
|
||
|
|
buf_len = tmp_len;
|
||
|
|
if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len)
|
||
|
|
buf_len = tmp_len;
|
||
|
|
if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len)
|
||
|
|
buf_len = tmp_len;
|
||
|
|
if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len)
|
||
|
|
buf_len = tmp_len;
|
||
|
|
|
||
|
|
buffer = (unsigned char *)OPENSSL_malloc(buf_len);
|
||
|
|
|
||
|
|
if (buffer == NULL) {
|
||
|
|
perror("OPENSSL_malloc");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
ecparam_print_var(out, ec_p, "ec_p", len, buffer);
|
||
|
|
ecparam_print_var(out, ec_a, "ec_a", len, buffer);
|
||
|
|
ecparam_print_var(out, ec_b, "ec_b", len, buffer);
|
||
|
|
ecparam_print_var(out, ec_gen, "ec_gen", len, buffer);
|
||
|
|
ecparam_print_var(out, ec_order, "ec_order", len, buffer);
|
||
|
|
ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, buffer);
|
||
|
|
|
||
|
|
BIO_printf(out, "\n\n");
|
||
|
|
|
||
|
|
BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len);
|
||
|
|
BIO_printf(out, "\tint ok=0;\n");
|
||
|
|
BIO_printf(out, "\tEC_GROUP *group = NULL;\n");
|
||
|
|
BIO_printf(out, "\tEC_POINT *point = NULL;\n");
|
||
|
|
BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, "
|
||
|
|
"*tmp_3 = NULL;\n\n");
|
||
|
|
BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, "
|
||
|
|
"sizeof(ec_p_%d), NULL)) == NULL)\n\t\t"
|
||
|
|
"goto err;\n", len, len);
|
||
|
|
BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, "
|
||
|
|
"sizeof(ec_a_%d), NULL)) == NULL)\n\t\t"
|
||
|
|
"goto err;\n", len, len);
|
||
|
|
BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, "
|
||
|
|
"sizeof(ec_b_%d), NULL)) == NULL)\n\t\t"
|
||
|
|
"goto err;\n", len, len);
|
||
|
|
if (is_prime) {
|
||
|
|
BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_"
|
||
|
|
"GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)"
|
||
|
|
"\n\t\tgoto err;\n\n");
|
||
|
|
} else {
|
||
|
|
/* TODO */
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
BIO_printf(out, "\t/* build generator */\n");
|
||
|
|
BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, "
|
||
|
|
"sizeof(ec_gen_%d), tmp_1)) == NULL)"
|
||
|
|
"\n\t\tgoto err;\n", len, len);
|
||
|
|
BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, "
|
||
|
|
"NULL, NULL);\n");
|
||
|
|
BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n");
|
||
|
|
BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, "
|
||
|
|
"sizeof(ec_order_%d), tmp_2)) == NULL)"
|
||
|
|
"\n\t\tgoto err;\n", len, len);
|
||
|
|
BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, "
|
||
|
|
"sizeof(ec_cofactor_%d), tmp_3)) == NULL)"
|
||
|
|
"\n\t\tgoto err;\n", len, len);
|
||
|
|
BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point,"
|
||
|
|
" tmp_2, tmp_3))\n\t\tgoto err;\n");
|
||
|
|
BIO_printf(out, "\n\tok=1;\n");
|
||
|
|
BIO_printf(out, "err:\n");
|
||
|
|
BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n");
|
||
|
|
BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n");
|
||
|
|
BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n");
|
||
|
|
BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n");
|
||
|
|
BIO_printf(out, "\tif (!ok)\n");
|
||
|
|
BIO_printf(out, "\t\t{\n");
|
||
|
|
BIO_printf(out, "\t\tEC_GROUP_free(group);\n");
|
||
|
|
BIO_printf(out, "\t\tgroup = NULL;\n");
|
||
|
|
BIO_printf(out, "\t\t}\n");
|
||
|
|
BIO_printf(out, "\treturn(group);\n\t}\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (outformat == FORMAT_ASN1 && genkey)
|
||
|
|
noout = 1;
|
||
|
|
|
||
|
|
if (!noout) {
|
||
|
|
if (outformat == FORMAT_ASN1)
|
||
|
|
i = i2d_ECPKParameters_bio(out, group);
|
||
|
|
else if (outformat == FORMAT_PEM)
|
||
|
|
i = PEM_write_bio_ECPKParameters(out, group);
|
||
|
|
else {
|
||
|
|
BIO_printf(bio_err, "bad output format specified for"
|
||
|
|
" outfile\n");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
if (!i) {
|
||
|
|
BIO_printf(bio_err, "unable to write elliptic "
|
||
|
|
"curve parameters\n");
|
||
|
|
ERR_print_errors(bio_err);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (need_rand) {
|
||
|
|
app_RAND_load_file(NULL, bio_err, (inrand != NULL));
|
||
|
|
if (inrand != NULL)
|
||
|
|
BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
|
||
|
|
app_RAND_load_files(inrand));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (genkey) {
|
||
|
|
EC_KEY *eckey = EC_KEY_new();
|
||
|
|
|
||
|
|
if (eckey == NULL)
|
||
|
|
goto end;
|
||
|
|
|
||
|
|
assert(need_rand);
|
||
|
|
|
||
|
|
if (EC_KEY_set_group(eckey, group) == 0)
|
||
|
|
goto end;
|
||
|
|
|
||
|
|
if (new_form)
|
||
|
|
EC_KEY_set_conv_form(eckey, form);
|
||
|
|
|
||
|
|
if (!EC_KEY_generate_key(eckey)) {
|
||
|
|
EC_KEY_free(eckey);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
if (outformat == FORMAT_ASN1)
|
||
|
|
i = i2d_ECPrivateKey_bio(out, eckey);
|
||
|
|
else if (outformat == FORMAT_PEM)
|
||
|
|
i = PEM_write_bio_ECPrivateKey(out, eckey, NULL,
|
||
|
|
NULL, 0, NULL, NULL);
|
||
|
|
else {
|
||
|
|
BIO_printf(bio_err, "bad output format specified "
|
||
|
|
"for outfile\n");
|
||
|
|
EC_KEY_free(eckey);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
EC_KEY_free(eckey);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (need_rand)
|
||
|
|
app_RAND_write_file(NULL, bio_err);
|
||
|
|
|
||
|
|
ret = 0;
|
||
|
|
end:
|
||
|
|
if (ec_p)
|
||
|
|
BN_free(ec_p);
|
||
|
|
if (ec_a)
|
||
|
|
BN_free(ec_a);
|
||
|
|
if (ec_b)
|
||
|
|
BN_free(ec_b);
|
||
|
|
if (ec_gen)
|
||
|
|
BN_free(ec_gen);
|
||
|
|
if (ec_order)
|
||
|
|
BN_free(ec_order);
|
||
|
|
if (ec_cofactor)
|
||
|
|
BN_free(ec_cofactor);
|
||
|
|
if (buffer)
|
||
|
|
OPENSSL_free(buffer);
|
||
|
|
if (group != NULL)
|
||
|
|
EC_GROUP_free(group);
|
||
|
|
release_engine(e);
|
||
|
|
if (in != NULL)
|
||
|
|
BIO_free(in);
|
||
|
|
if (out != NULL)
|
||
|
|
BIO_free_all(out);
|
||
|
|
apps_shutdown();
|
||
|
|
OPENSSL_EXIT(ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ecparam_print_var(BIO *out, BIGNUM *in, const char *var,
|
||
|
|
int len, unsigned char *buffer)
|
||
|
|
{
|
||
|
|
BIO_printf(out, "static unsigned char %s_%d[] = {", var, len);
|
||
|
|
if (BN_is_zero(in))
|
||
|
|
BIO_printf(out, "\n\t0x00");
|
||
|
|
else {
|
||
|
|
int i, l;
|
||
|
|
|
||
|
|
l = BN_bn2bin(in, buffer);
|
||
|
|
for (i = 0; i < l - 1; i++) {
|
||
|
|
if ((i % 12) == 0)
|
||
|
|
BIO_printf(out, "\n\t");
|
||
|
|
BIO_printf(out, "0x%02X,", buffer[i]);
|
||
|
|
}
|
||
|
|
if ((i % 12) == 0)
|
||
|
|
BIO_printf(out, "\n\t");
|
||
|
|
BIO_printf(out, "0x%02X", buffer[i]);
|
||
|
|
}
|
||
|
|
BIO_printf(out, "\n\t};\n\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
#else /* !OPENSSL_NO_EC */
|
||
|
|
|
||
|
|
# if PEDANTIC
|
||
|
|
static void *dummy = &dummy;
|
||
|
|
# endif
|
||
|
|
|
||
|
|
#endif
|