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/*
This file is part of GNUnet.
Copyright (C) 2009-2013, 2018 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @file gnsrecord/gnsrecord_crypto.h
* @brief API for GNS record-related crypto
* @author Martin Schanzenbach
* @author Matthias Wachs
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_constants.h"
#include "gnunet_signatures.h"
#include "gnunet_arm_service.h"
#include "gnunet_gnsrecord_lib.h"
#include "gnunet_dnsparser_lib.h"
#include "gnunet_tun_lib.h"
/**
* Derive session key and iv from label and public key.
*
* @param iv initialization vector to initialize
* @param skey session key to initialize
* @param label label to use for KDF
* @param pub public key to use for KDF
*/
void
GNR_derive_block_aes_key (unsigned char *ctr,
unsigned char *key,
const char *label,
uint64_t exp,
const struct GNUNET_CRYPTO_EcdsaPublicKey *pub);
/**
* Derive session key and iv from label and public key.
*
* @param nonce initialization vector to initialize
* @param skey session key to initialize
* @param label label to use for KDF
* @param pub public key to use for KDF
*/
void
GNR_derive_block_xsalsa_key (unsigned char *nonce,
unsigned char *key,
const char *label,
uint64_t exp,
const struct GNUNET_CRYPTO_EddsaPublicKey *pub);
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