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/*
* Ouroboros - Copyright (C) 2016 - 2023
*
* Cryptography
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#ifndef OUROBOROS_LIB_CRYPT_H
#define OUROBOROS_LIB_CRYPT_H
#include <ouroboros/shm_du_buff.h>
#define SYMMKEYSZ 32
struct crypt_info {
uint16_t flags;
void * ctx;
uint8_t key[SYMMKEYSZ];
};
int crypt_dh_pkp_create(void ** pkp,
uint8_t * pk);
void crypt_dh_pkp_destroy(void * pkp);
int crypt_dh_derive(void * pkp,
uint8_t * pk,
size_t len,
uint8_t * s);
int crypt_encrypt(struct crypt_info * info,
struct shm_du_buff * sdb);
int crypt_decrypt(struct crypt_info * info,
struct shm_du_buff * sdb);
int crypt_init(struct crypt_info * info);
void crypt_fini(struct crypt_info * info);
#endif /* OUROBOROS_LIB_CRYPT_H */
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