summaryrefslogtreecommitdiff
path: root/src/ref/tweakey.h
blob: e461b4316c72125f5660b038d0662f1d4d0088eb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
/*
Implementation of the Lilliput-AE tweakable block cipher.

Author: Kévin Le Gouguec, 2019.

For more information, feedback or questions, refer to our website:
https://paclido.fr/lilliput-ae

To the extent possible under law, the implementer has waived all copyright
and related or neighboring rights to the source code in this file.
http://creativecommons.org/publicdomain/zero/1.0/

---

This file provides the interface for Lilliput-TBC's tweakey schedule.
*/

#ifndef TWEAKEY_H
#define TWEAKEY_H

#include <stdint.h>

#include "constants.h"


void tweakey_state_init(
    uint8_t TK[TWEAKEY_BYTES],
    const uint8_t key[KEY_BYTES],
    const uint8_t tweak[TWEAK_BYTES]
);

void tweakey_state_extract(
    const uint8_t TK[TWEAKEY_BYTES],
    uint8_t round_constant,
    uint8_t round_tweakey[ROUND_TWEAKEY_BYTES] /* output */
);

void tweakey_state_update(uint8_t TK[TWEAKEY_BYTES]);


#endif /* TWEAKEY_H */