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openssl/apps/ecdsaparam.c
Bodo Möller 254ef80db1 simplify asn1_flag 
Submitted by: Nils Larsch
Reviewed by: Bodo Moeller
2002-06-12 14:01:17 +00:00

661 lines
25 KiB
C
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/* apps/ecdsaparam.c */
/* ====================================================================
* Copyright (c) 1998-2002 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 (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef OPENSSL_NO_ECDSA
#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/ecdsa.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#undef PROG
#define PROG ecdsaparam_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
* -text
* -check - validate the ec parameters
* -C
* -noout
* -genkey - generate a private public keypair based on the supplied curve
* -named_curve - use the curve oid instead of the parameters
* -NIST_192 - use the NIST recommended curve parameters over a 192 bit prime field
* -NIST_224 - use the NIST recommended curve parameters over a 224 bit prime field
* -NIST_256 - use the NIST recommended curve parameters over a 256 bit prime field
* -NIST_384 - use the NIST recommended curve parameters over a 384 bit prime field
* -NIST_521 - use the NIST recommended curve parameters over a 521 bit prime field
* -X9_62_192v1 - use the X9_62 192v1 example curve over a 192 bit prime field
* -X9_62_192v2 - use the X9_62 192v2 example curve over a 192 bit prime field
* -X9_62_192v3 - use the X9_62 192v3 example curve over a 192 bit prime field
* -X9_62_239v1 - use the X9_62 239v1 example curve over a 239 bit prime field
* -X9_62_239v2 - use the X9_62 239v2 example curve over a 239 bit prime field
* -X9_62_239v3 - use the X9_62 239v3 example curve over a 239 bit prime field
* -X9_62_256v1 - use the X9_62 239v1 example curve over a 256 bit prime field
* -SECG_PRIME_112R1 - use the SECG 112r1 recommended curve over a 112 bit prime field
* -SECG_PRIME_112R2 - use the SECG 112r2 recommended curve over a 112 bit prime field
* -SECG_PRIME_128R1 - use the SECG 128r1 recommended curve over a 128 bit prime field
* -SECG_PRIME_128R2 - use the SECG 128r2 recommended curve over a 128 bit prime field
* -SECG_PRIME_160K1 - use the SECG 160k1 recommended curve over a 160 bit prime field
* -SECG_PRIME_160R1 - use the SECG 160r1 recommended curve over a 160 bit prime field
* -SECG_PRIME_160R2 - use the SECG 160r2 recommended curve over a 160 bit prime field
* -SECG_PRIME_192K1 - use the SECG 192k1 recommended curve over a 192 bit prime field
* -SECG_PRIME_192R1 - use the SECG 192r1 recommended curve over a 192 bit prime field
* -SECG_PRIME_224K1 - use the SECG 224k1 recommended curve over a 224 bit prime field
* -SECG_PRIME_224R1 - use the SECG 224r1 recommended curve over a 224 bit prime field
* -SECG_PRIME_256K1 - use the SECG 256k1 recommended curve over a 256 bit prime field
* -SECG_PRIME_256R1 - use the SECG 256r1 recommended curve over a 256 bit prime field
* -SECG_PRIME_384R1 - use the SECG 384r1 recommended curve over a 384 bit prime field
* -SECG_PRIME_521R1 - use the SECG 521r1 recommended curve over a 521 bit prime field
* -WTLS_6 - use the WAP/WTLS recommended curve number 6 over a 112 bit field
* -WTLS_8 - use the WAP/WTLS recommended curve number 8 over a 112 bit field
* -WTLS_9 - use the WAP/WTLS recommended curve number 9 over a 160 bit field
*/
int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
ENGINE *e = NULL;
ECDSA *ecdsa = NULL;
int i, badops = 0, text = 0;
BIO *in = NULL, *out = NULL;
int informat, outformat, noout = 0, C = 0, ret = 1;
char *infile, *outfile, *prog, *inrand = NULL;
int genkey = 0;
int check = 0;
int need_rand = 0;
char *engine=NULL;
int curve_type = EC_GROUP_NO_CURVE;
int named_curve = 0;
BIGNUM *tmp_1 = NULL, *tmp_2 = NULL, *tmp_3 = NULL, *tmp_4 = NULL, *tmp_5 = NULL,
*tmp_6 = NULL, *tmp_7 = NULL;
BN_CTX *ctx = NULL;
EC_POINT *point = NULL;
unsigned char *data = 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;
infile=NULL;
outfile=NULL;
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, "-engine") == 0)
{
if (--argc < 1) goto bad;
engine = *(++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,"-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, "-named_curve") == 0)
named_curve = 1;
else if (strcmp(*argv, "-NIST_192") == 0)
curve_type = EC_GROUP_NIST_PRIME_192;
else if (strcmp(*argv, "-NIST_224") == 0)
curve_type = EC_GROUP_NIST_PRIME_224;
else if (strcmp(*argv, "-NIST_256") == 0)
curve_type = EC_GROUP_NIST_PRIME_256;
else if (strcmp(*argv, "-NIST_384") == 0)
curve_type = EC_GROUP_NIST_PRIME_384;
else if (strcmp(*argv, "-NIST_521") == 0)
curve_type = EC_GROUP_NIST_PRIME_521;
else if (strcmp(*argv, "-X9_62_192v1") == 0)
curve_type = EC_GROUP_X9_62_PRIME_192V1;
else if (strcmp(*argv, "-X9_62_192v2") == 0)
curve_type = EC_GROUP_X9_62_PRIME_192V2;
else if (strcmp(*argv, "-X9_62_192v3") == 0)
curve_type = EC_GROUP_X9_62_PRIME_192V3;
else if (strcmp(*argv, "-X9_62_239v1") == 0)
curve_type = EC_GROUP_X9_62_PRIME_239V1;
else if (strcmp(*argv, "-X9_62_239v2") == 0)
curve_type = EC_GROUP_X9_62_PRIME_239V2;
else if (strcmp(*argv, "-X9_62_239v3") == 0)
curve_type = EC_GROUP_X9_62_PRIME_239V3;
else if (strcmp(*argv, "-X9_62_256v1") == 0)
curve_type = EC_GROUP_X9_62_PRIME_256V1;
else if (strcmp(*argv, "-SECG_PRIME_112R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_112R1;
else if (strcmp(*argv, "-SECG_PRIME_112R2") == 0)
curve_type = EC_GROUP_SECG_PRIME_112R2;
else if (strcmp(*argv, "-SECG_PRIME_128R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_128R1;
else if (strcmp(*argv, "-SECG_PRIME_128R2") == 0)
curve_type = EC_GROUP_SECG_PRIME_128R2;
else if (strcmp(*argv, "-SECG_PRIME_160K1") == 0)
curve_type = EC_GROUP_SECG_PRIME_160K1;
else if (strcmp(*argv, "-SECG_PRIME_160R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_160R1;
else if (strcmp(*argv, "-SECG_PRIME_160R2") == 0)
curve_type = EC_GROUP_SECG_PRIME_160R2;
else if (strcmp(*argv, "-SECG_PRIME_192K1") == 0)
curve_type = EC_GROUP_SECG_PRIME_192K1;
else if (strcmp(*argv, "-SECG_PRIME_192R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_192R1;
else if (strcmp(*argv, "-SECG_PRIME_224K1") == 0)
curve_type = EC_GROUP_SECG_PRIME_224K1;
else if (strcmp(*argv, "-SECG_PRIME_224R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_224R1;
else if (strcmp(*argv, "-SECG_PRIME_256K1") == 0)
curve_type = EC_GROUP_SECG_PRIME_256K1;
else if (strcmp(*argv, "-SECG_PRIME_256R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_256R1;
else if (strcmp(*argv, "-SECG_PRIME_384R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_384R1;
else if (strcmp(*argv, "-SECG_PRIME_521R1") == 0)
curve_type = EC_GROUP_SECG_PRIME_521R1;
else if (strcmp(*argv, "-WTLS_6") == 0)
curve_type = EC_GROUP_WTLS_6;
else if (strcmp(*argv, "-WTLS_8") == 0)
curve_type = EC_GROUP_WTLS_8;
else if (strcmp(*argv, "-WTLS_9") == 0)
curve_type = EC_GROUP_WTLS_9;
else if (strcmp(*argv, "-noout") == 0)
noout=1;
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badops=1;
break;
}
argc--;
argv++;
}
if (badops)
{
bad:
BIO_printf(bio_err,"%s [options] [bits] <infile >outfile\n",prog);
BIO_printf(bio_err,"where options are\n");
BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
BIO_printf(bio_err," -in arg input file\n");
BIO_printf(bio_err," -out arg output file\n");
BIO_printf(bio_err," -text print as text\n");
BIO_printf(bio_err," -C Output C code\n");
BIO_printf(bio_err," -check validate the ec parameters\n");
BIO_printf(bio_err," -noout no output\n");
BIO_printf(bio_err," -rand files to use for random number input\n");
BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
BIO_printf(bio_err," -named_curve use the curve oid instead of the parameters\n");
BIO_printf(bio_err," -NIST_192 use the NIST recommended curve parameters over a 192 bit prime field\n");
BIO_printf(bio_err," -NIST_224 use the NIST recommended curve parameters over a 224 bit prime field\n");
BIO_printf(bio_err," -NIST_256 use the NIST recommended curve parameters over a 256 bit prime field\n");
BIO_printf(bio_err," -NIST_384 use the NIST recommended curve parameters over a 384 bit prime field\n");
BIO_printf(bio_err," -NIST_521 use the NIST recommended curve parameters over a 521 bit prime field\n");
BIO_printf(bio_err," -X9_62_192v1 use the X9_62 192v1 example curve over a 192 bit prime field\n");
BIO_printf(bio_err," -X9_62_192v2 use the X9_62 192v2 example curve over a 192 bit prime field\n");
BIO_printf(bio_err," -X9_62_192v3 use the X9_62 192v3 example curve over a 192 bit prime field\n");
BIO_printf(bio_err," -X9_62_239v1 use the X9_62 239v1 example curve over a 239 bit prime field\n");
BIO_printf(bio_err," -X9_62_239v2 use the X9_62 239v2 example curve over a 239 bit prime field\n");
BIO_printf(bio_err," -X9_62_239v3 use the X9_62 239v3 example curve over a 239 bit prime field\n");
BIO_printf(bio_err," -X9_62_256v1 use the X9_62 239v1 example curve over a 256 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_112R1 use the SECG 112r1 recommended curve over a 112 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_112R2 use the SECG 112r2 recommended curve over a 112 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_128R1 use the SECG 128r1 recommended curve over a 128 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_128R2 use the SECG 128r2 recommended curve over a 128 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_160K1 use the SECG 160k1 recommended curve over a 160 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_160R1 use the SECG 160r1 recommended curve over a 160 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_160R2 use the SECG 160r2 recommended curve over a 160 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_192K1 use the SECG 192k1 recommended curve over a 192 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_192R1 use the SECG 192r1 recommended curve over a 192 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_224K1 use the SECG 224k1 recommended curve over a 224 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_224R1 use the SECG 224r1 recommended curve over a 224 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_256K1 use the SECG 256k1 recommended curve over a 256 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_256R1 use the SECG 256r1 recommended curve over a 256 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_384R1 use the SECG 384r1 recommended curve over a 384 bit prime field\n");
BIO_printf(bio_err," -SECG_PRIME_521R1 use the SECG 521r1 recommended curve over a 521 bit prime field\n");
BIO_printf(bio_err," -WTLS_6 use the WAP/WTLS recommended curve number 6 over a 112 bit field\n");
BIO_printf(bio_err," -WTLS_8 use the WAP/WTLS recommended curve number 8 over a 112 bit field\n");
BIO_printf(bio_err," -WTLS_9 use the WAP/WTLS recommended curve number 9 over a 112 bit field\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 (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 (curve_type != EC_GROUP_NO_CURVE)
{
if ((ecdsa = ECDSA_new()) == NULL)
goto end;
ecdsa->group = EC_GROUP_new_by_name(curve_type);
if (named_curve)
EC_GROUP_set_asn1_flag(ecdsa->group,
OPENSSL_EC_NAMED_CURVE);
}
else if (informat == FORMAT_ASN1)
ecdsa = d2i_ECDSAParameters_bio(in,NULL);
else if (informat == FORMAT_PEM)
ecdsa = PEM_read_bio_ECDSAParameters(in, NULL, NULL, NULL);
else
{
BIO_printf(bio_err, "bad input format specified\n");
goto end;
}
if (ecdsa == NULL)
{
BIO_printf(bio_err, "unable to load ECDSA parameters\n");
ERR_print_errors(bio_err);
goto end;
}
if (text)
{
ECDSAParameters_print(out, ecdsa);
}
if (check)
{
if (ecdsa == NULL)
BIO_printf(bio_err, "no elliptic curve parameters\n");
BIO_printf(bio_err, "checking elliptic curve parameters: ");
if (!EC_GROUP_check(ecdsa->group, NULL))
{
BIO_printf(bio_err, "failed\n");
ERR_print_errors(bio_err);
}
else
BIO_printf(bio_err, "ok\n");
}
if (C)
{ /* TODO: characteristic two */
int l, len, bits_p;
if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL ||
(tmp_3 = BN_new()) == NULL || (tmp_4 = BN_new()) == NULL ||
(tmp_5 = BN_new()) == NULL || (tmp_6 = BN_new()) == NULL ||
(tmp_7 = BN_new()) == NULL || (ctx = BN_CTX_new()) == NULL)
{
perror("OPENSSL_malloc");
goto end;
}
if (!EC_GROUP_get_curve_GFp(ecdsa->group, tmp_1, tmp_2, tmp_3, ctx))
goto end;
if ((point = EC_GROUP_get0_generator(ecdsa->group)) == NULL)
goto end;
if (!EC_POINT_get_affine_coordinates_GFp(ecdsa->group, point, tmp_4, tmp_5, ctx))
goto end;
if (!EC_GROUP_get_order(ecdsa->group, tmp_6, ctx))
goto end;
if (!EC_GROUP_get_cofactor(ecdsa->group, tmp_7, ctx))
goto end;
len = BN_num_bytes(tmp_1);
bits_p = BN_num_bits(tmp_1);
data=(unsigned char *)OPENSSL_malloc(len+20);
if (data == NULL)
{
perror("OPENSSL_malloc");
goto end;
}
l = BN_bn2bin(tmp_1, data);
printf("static unsigned char ecdsa%d_p[]={", bits_p);
for (i=0; i<l; i++)
{
if ((i%12) == 0) printf("\n\t");
printf("0x%02X,",data[i]);
}
printf("\n\t};\n\n");
l = BN_bn2bin(tmp_2, data);
printf("static unsigned char ecdsa%d_a[]={",bits_p);
for (i=0; i<l; i++)
{
if ((i%12) == 0) printf("\n\t");
printf("0x%02X,",data[i]);
}
printf("\n\t};\n");
l = BN_bn2bin(tmp_3, data);
printf("static unsigned char ecdsa%d_b[]={", bits_p);
for (i=0; i<l; i++)
{
if ((i%12) == 0) printf("\n\t");
printf("0x%02X,",data[i]);
}
printf("\n\t};\n\n");
l = BN_bn2bin(tmp_4, data);
printf("static unsigned char ecdsa%d_x[]={", bits_p);
for (i=0; i<l; i++)
{
if ((i%12) == 0) printf("\n\t");
printf("0x%02X,",data[i]);
}
printf("\n\t};\n");
l = BN_bn2bin(tmp_5, data);
printf("static unsigned char ecdsa%d_y[]={", bits_p);
for (i=0; i<l; i++)
{
if ((i%12) == 0) printf("\n\t");
printf("0x%02X,",data[i]);
}
printf("\n\t};\n");
l = BN_bn2bin(tmp_6, data);
printf("static unsigned char ecdsa%d_o[]={", bits_p);
for (i=0; i<l; i++)
{
if ((i%12) == 0) printf("\n\t");
printf("0x%02X,",data[i]);
}
printf("\n\t};\n");
l = BN_bn2bin(tmp_7, data);
printf("static unsigned char ecdsa%d_c[]={", bits_p);
for (i=0; i<l; i++)
{
if ((i%12) == 0) printf("\n\t");
printf("0x%02X,",data[i]);
}
printf("\n\t};\n\n");
/* FIXME:
* generated code should check for errors
*/
printf("ECDSA *get_ecdsa%d(void)\n\t{\n",bits_p);
printf("\tint ok=0;\n");
printf("\tECDSA *ecdsa=NULL;\n");
printf("\tEC_POINT *point=NULL;\n");
printf("\tBIGNUM *tmp_1=NULL,*tmp_2=NULL,*tmp_3=NULL;\n\n");
printf("\tif ((ecdsa=ECDSA_new()) == NULL)\n");
printf("\t\treturn(NULL);\n\n");
printf("\t/* generate EC_GROUP structure */\n");
printf("\tif ((tmp_1 = BN_bin2bn(ecdsa%d_p, sizeof(ecdsa%d_p), NULL)) == NULL) goto err;\n", bits_p, bits_p);
printf("\tif ((tmp_2 = BN_bin2bn(ecdsa%d_a, sizeof(ecdsa%d_a), NULL)) == NULL) goto err;\n", bits_p, bits_p);
printf("\tif ((tmp_3 = BN_bin2bn(ecdsa%d_b, sizeof(ecdsa%d_b), NULL)) == NULL) goto err;\n", bits_p, bits_p);
printf("\tif ((ecdsa->group = EC_GROUP_new_curve_GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL) goto err;\n\n");
printf("\t/* build generator */\n");
printf("\tif (!BN_bin2bn(ecdsa%d_x, sizeof(ecdsa%d_x), tmp_1)) goto err;\n", bits_p, bits_p);
printf("\tif (!BN_bin2bn(ecdsa%d_y, sizeof(ecdsa%d_y), tmp_2)) goto err;\n", bits_p, bits_p);
printf("\tif ((point = EC_POINT_new(ecdsa->group)) == NULL) goto err;\n");
printf("\tif (!EC_POINT_set_affine_coordinates_GFp(ecdsa->group, point, tmp_1, tmp_2, NULL)) goto err;\n");
printf("\t/* set generator, order and cofactor */\n");
printf("\tif (!BN_bin2bn(ecdsa%d_o, sizeof(ecdsa%d_o), tmp_1)) goto err;\n", bits_p, bits_p);
printf("\tif (!BN_bin2bn(ecdsa%d_c, sizeof(ecdsa%d_c), tmp_2)) goto err;\n", bits_p, bits_p);
printf("\tif (!EC_GROUP_set_generator(ecdsa->group, point, tmp_1, tmp_2)) goto err;\n");
printf("\n\tok=1;\n");
printf("err:\n");
printf("\tif (tmp_1) BN_free(tmp_1);\n");
printf("\tif (tmp_2) BN_free(tmp_2);\n");
printf("\tif (tmp_3) BN_free(tmp_3);\n");
printf("\tif (point) EC_POINT_free(point);\n");
printf("\tif (!ok)\n");
printf("\t\t{\n");
printf("\t\tECDSA_free(ecdsa);\n");
printf("\t\tecdsa = NULL;\n");
printf("\t\t}\n");
printf("\treturn(ecdsa);\n\t}\n");
}
if (!noout)
{
if (outformat == FORMAT_ASN1)
i = i2d_ECDSAParameters_bio(out, ecdsa);
else if (outformat == FORMAT_PEM)
i = PEM_write_bio_ECDSAParameters(out, ecdsa);
else
{
BIO_printf(bio_err,"bad output format specified for outfile\n");
goto end;
}
if (!i)
{
BIO_printf(bio_err, "unable to write ECDSA parameters\n");
ERR_print_errors(bio_err);
goto end;
}
}
if (genkey)
{
ECDSA *ecdsakey;
assert(need_rand);
if ((ecdsakey = ECDSAParameters_dup(ecdsa)) == NULL) goto end;
if (!ECDSA_generate_key(ecdsakey)) goto end;
if (outformat == FORMAT_ASN1)
i = i2d_ECDSAPrivateKey_bio(out, ecdsakey);
else if (outformat == FORMAT_PEM)
i = PEM_write_bio_ECDSAPrivateKey(out, ecdsakey, NULL, NULL, 0, NULL, NULL);
else
{
BIO_printf(bio_err, "bad output format specified for outfile\n");
goto end;
}
ECDSA_free(ecdsakey);
}
if (need_rand)
app_RAND_write_file(NULL, bio_err);
ret=0;
end:
if (in != NULL) BIO_free(in);
if (out != NULL) BIO_free_all(out);
if (ecdsa != NULL) ECDSA_free(ecdsa);
if (tmp_1) BN_free(tmp_1);
if (tmp_2) BN_free(tmp_2);
if (tmp_3) BN_free(tmp_3);
if (tmp_3) BN_free(tmp_4);
if (tmp_3) BN_free(tmp_5);
if (tmp_3) BN_free(tmp_6);
if (tmp_3) BN_free(tmp_7);
if (ctx) BN_CTX_free(ctx);
if (data) OPENSSL_free(data);
apps_shutdown();
EXIT(ret);
}
#endif
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