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/* Calculate IKEv2 prf and keying material, for libreswan
*
* Copyright (C) 2007 Michael C. Richardson <mcr@xelerance.com>
* Copyright (C) 2010 Paul Wouters <paul@xelerance.com>
* Copyright (C) 2013 D. Hugh Redelmeier <hugh@mimosa.com>
* Copyright (C) 2015-2019 Andrew Cagney <cagney@gnu.org>
* Copyright (C) 2020 Yulia Kuzovkova <ukuzovkova@gmail.com>
* Copyright (C) 2020 Nupur Agrawal <nupur202000@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/gpl2.txt>.
*
* This program 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 General Public License
* for more details.
*/
#ifndef _IKEV2_PRF_H
#define _IKEV2_PRF_H
#include "lswnss.h"
#include "ike_spi.h"
#include "chunk.h"
#include "shunk.h"
struct prf_desc;
/*
* IKE SA
*/
PK11SymKey *ikev2_prfplus(const struct prf_desc *prf_desc,
PK11SymKey *key, PK11SymKey *seed,
size_t required_keymat,
struct logger *logger);
PK11SymKey *ikev2_ike_sa_skeyseed(const struct prf_desc *prf_desc,
const chunk_t Ni, const chunk_t Nr,
PK11SymKey *dh_secret,
struct logger *logger);
PK11SymKey *ikev2_ike_sa_rekey_skeyseed(const struct prf_desc *prf_desc,
PK11SymKey *old_SK_d,
PK11SymKey *new_dh_secret,
const chunk_t Ni, const chunk_t Nr,
struct logger *logger);
PK11SymKey *ikev2_ike_sa_keymat(const struct prf_desc *prf_desc,
PK11SymKey *skeyseed,
const chunk_t Ni, const chunk_t Nr,
const ike_spis_t *ike_spis,
size_t required_bytes,
struct logger *logger);
PK11SymKey *ikev2_ike_sa_ppk_interm_skeyseed(const struct prf_desc *prf_desc,
PK11SymKey *old_SK_d,
shunk_t ppk,
struct logger *logger);
PK11SymKey *ikev2_ike_sa_resume_skeyseed(const struct prf_desc *prf_desc,
PK11SymKey *old_SK_d,
const chunk_t Ni, const chunk_t Nr,
struct logger *logger);
/*
* Child SA
*/
PK11SymKey *ikev2_child_sa_keymat(const struct prf_desc *prf_desc,
PK11SymKey *SK_d,
PK11SymKey *new_dh_secret,
const chunk_t Ni, const chunk_t Nr,
size_t required_bytes,
struct logger *logger);
/*
* Authentication.
*/
struct crypt_mac ikev2_psk_auth(const struct prf_desc *prf_desc, shunk_t pss,
chunk_t first_packet, chunk_t nonce,
const struct crypt_mac *id_hash,
chunk_t intermediate_packet,
struct logger *logger);
struct crypt_mac ikev2_psk_resume(const struct prf_desc *prf_desc,
PK11SymKey *SK_px,
chunk_t first_packet,
struct logger *logger);
#endif
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