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/*
* NORX reference source code package - reference C implementations
*
* Written 2014-2016 by:
*
* - Samuel Neves <sneves@dei.uc.pt>
* - Philipp Jovanovic <philipp@jovanovic.io>
*
* To the extent possible under law, the author(s) have dedicated all copyright
* and related and neighboring rights to this software to the public domain
* worldwide. This software is distributed without any warranty.
*
* You should have received a copy of the CC0 Public Domain Dedication along with
* this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
*/
#ifndef NORX_NORX_H
#define NORX_NORX_H
#include <stddef.h>
#include <stdint.h>
#include "norx_inexact_config.h"
#if NORX_W == 64
typedef uint64_t norx_word_t;
#elif NORX_W == 32
typedef uint32_t norx_word_t;
#else
#error "Invalid word size!"
#endif
typedef struct norx_state__
{
norx_word_t S[16];
} norx_state_t[1];
typedef enum tag__
{
HEADER_TAG = 0x01,
PAYLOAD_TAG = 0x02,
TRAILER_TAG = 0x04,
FINAL_TAG = 0x08,
BRANCH_TAG = 0x10,
MERGE_TAG = 0x20
} tag_t;
/* High-level operations */
void norx_aead_encrypt(
unsigned char *c, size_t *clen,
const unsigned char *a, size_t alen,
const unsigned char *m, size_t mlen,
const unsigned char *z, size_t zlen,
const unsigned char *nonce,
const unsigned char *key,
size_t tlen);
int norx_aead_decrypt(
unsigned char *m, size_t *mlen,
const unsigned char *a, size_t alen,
const unsigned char *c, size_t clen,
const unsigned char *z, size_t zlen,
const unsigned char *nonce,
const unsigned char *key,
size_t tlen);
#endif
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