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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#include <stdio.h>
#include <stdlib.h>
#include <isc/buffer.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/region.h>
#include <isc/stdio.h>
#include <isc/string.h>
#include <isc/util.h>
#define DST_KEY_INTERNAL
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/rsa.h>
#include <isc/result.h>
#include <dns/dnssec.h>
#include <dns/fixedname.h>
#include <dns/keyvalues.h>
#include <dns/log.h>
#include <dns/name.h>
#include <dns/rdataclass.h>
#include <dns/secalg.h>
#include <dst/dst.h>
dst_key_t *key;
dns_fixedname_t fname;
dns_name_t *name;
unsigned int bits = 2048U;
isc_mem_t *mctx;
isc_log_t *log_;
isc_logconfig_t *logconfig;
int level = ISC_LOG_WARNING;
isc_logdestination_t destination;
char filename[255];
isc_result_t result;
isc_buffer_t buf;
RSA *rsa;
BIGNUM *e;
EVP_PKEY *pkey;
#define CHECK(op, msg) \
do { \
result = (op); \
if (result != ISC_R_SUCCESS) { \
fprintf(stderr, \
"fatal error: %s returns %s at file %s line " \
"%d\n", \
msg, isc_result_totext(result), __FILE__, \
__LINE__); \
ERR_clear_error(); \
exit(1); \
} \
} while (0)
int
main(int argc, char **argv) {
UNUSED(argc);
UNUSED(argv);
rsa = RSA_new();
e = BN_new();
pkey = EVP_PKEY_new();
if ((rsa == NULL) || (e == NULL) || (pkey == NULL) ||
!EVP_PKEY_set1_RSA(pkey, rsa))
{
fprintf(stderr, "fatal error: basic OpenSSL failure\n");
ERR_clear_error();
exit(1);
}
/* e = 0x1000000000001 */
BN_set_bit(e, 0);
BN_set_bit(e, 48);
if (RSA_generate_key_ex(rsa, bits, e, NULL)) {
BN_free(e);
RSA_free(rsa);
} else {
fprintf(stderr,
"fatal error: RSA_generate_key_ex() fails "
"at file %s line %d\n",
__FILE__, __LINE__);
ERR_clear_error();
exit(1);
}
isc_mem_create(&mctx);
CHECK(dst_lib_init(mctx, NULL), "dst_lib_init()");
isc_log_create(mctx, &log_, &logconfig);
isc_log_setcontext(log_);
dns_log_init(log_);
dns_log_setcontext(log_);
isc_log_settag(logconfig, "bigkey");
destination.file.stream = stderr;
destination.file.name = NULL;
destination.file.versions = ISC_LOG_ROLLNEVER;
destination.file.maximum_size = 0;
isc_log_createchannel(logconfig, "stderr", ISC_LOG_TOFILEDESC, level,
&destination,
ISC_LOG_PRINTTAG | ISC_LOG_PRINTLEVEL);
CHECK(isc_log_usechannel(logconfig, "stderr", NULL, NULL), "isc_log_"
"usechannel("
")");
name = dns_fixedname_initname(&fname);
isc_buffer_constinit(&buf, "example.", strlen("example."));
isc_buffer_add(&buf, strlen("example."));
CHECK(dns_name_fromtext(name, &buf, dns_rootname, 0, NULL), "dns_name_"
"fromtext("
"\"example."
"\")");
CHECK(dst_key_buildinternal(name, DNS_KEYALG_RSASHA256, bits,
DNS_KEYOWNER_ZONE, DNS_KEYPROTO_DNSSEC,
dns_rdataclass_in, pkey, mctx, &key),
"dst_key_buildinternal(...)");
CHECK(dst_key_tofile(key, DST_TYPE_PRIVATE | DST_TYPE_PUBLIC, NULL),
"dst_key_tofile()");
isc_buffer_init(&buf, filename, sizeof(filename) - 1);
isc_buffer_clear(&buf);
CHECK(dst_key_buildfilename(key, 0, NULL, &buf), "dst_key_"
"buildfilename()");
printf("%s\n", filename);
dst_key_free(&key);
isc_log_destroy(&log_);
isc_log_setcontext(NULL);
dns_log_setcontext(NULL);
dst_lib_destroy();
isc_mem_destroy(&mctx);
return (0);
}
/*! \file */
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