aboutsummaryrefslogtreecommitdiff
path: root/openssl/apps/ecparam.c
diff options
context:
space:
mode:
Diffstat (limited to 'openssl/apps/ecparam.c')
-rw-r--r--openssl/apps/ecparam.c728
1 files changed, 728 insertions, 0 deletions
diff --git a/openssl/apps/ecparam.c b/openssl/apps/ecparam.c
new file mode 100644
index 000000000..4e1fc837e
--- /dev/null
+++ b/openssl/apps/ecparam.c
@@ -0,0 +1,728 @@
+/* apps/ecparam.c */
+/*
+ * Written by Nils Larsch for the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2005 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 choosen 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;
+#ifndef OPENSSL_NO_ENGINE
+ ENGINE *e = NULL;
+#endif
+ char *engine = 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 choosen 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;
+ }
+ }
+
+#ifndef OPENSSL_NO_ENGINE
+ e = setup_engine(bio_err, engine, 0);
+#endif
+
+ 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)
+ {
+ 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)
+ {
+ if (group == NULL)
+ BIO_printf(bio_err, "no elliptic curve parameters\n");
+ 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);
+ }
+ else
+ 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 (!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 (!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 (in != NULL)
+ BIO_free(in);
+ if (out != NULL)
+ BIO_free_all(out);
+ if (group != NULL)
+ EC_GROUP_free(group);
+ 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;
+ }
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 00:48:38 +0000