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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.
*/
#pragma once
#include <isc/lang.h>
#include <dns/rdatastruct.h>
#include <dns/types.h>
#define DNS_DSDIGEST_SHA1 (1)
#define DNS_DSDIGEST_SHA256 (2)
#define DNS_DSDIGEST_GOST (3)
#define DNS_DSDIGEST_SHA384 (4)
/*
* Assuming SHA-384 digest type.
*/
#define DNS_DS_BUFFERSIZE (52)
ISC_LANG_BEGINDECLS
isc_result_t
dns_ds_fromkeyrdata(const dns_name_t *owner, dns_rdata_t *key,
dns_dsdigest_t digest_type, unsigned char *digest,
dns_rdata_ds_t *dsrdata);
/*%<
* Build a DS rdata structure from a key.
*
* Requires:
*\li key Points to a valid DNSKEY or CDNSKEY record.
*\li buffer Points to a buffer of at least
* #ISC_MAX_MD_SIZE bytes.
*/
isc_result_t
dns_ds_buildrdata(dns_name_t *owner, dns_rdata_t *key,
dns_dsdigest_t digest_type, unsigned char *buffer,
dns_rdata_t *rdata);
/*%<
* Similar to dns_ds_fromkeyrdata(), but copies the DS into a
* dns_rdata object.
*
* Requires:
*\li key Points to a valid DNSKEY or CDNSKEY record.
*\li buffer Points to a buffer of at least
* #DNS_DS_BUFFERSIZE bytes.
*\li rdata Points to an initialized dns_rdata_t.
*
* Ensures:
* \li *rdata Contains a valid DS rdata. The 'data' member refers
* to 'buffer'.
*/
ISC_LANG_ENDDECLS
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