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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/*
* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#ifndef _ZINC_BLAKE2S_H
#define _ZINC_BLAKE2S_H
#include <linux/types.h>
#include <linux/kernel.h>
#include <crypto/algapi.h>
enum blake2s_lengths {
BLAKE2S_BLOCKBYTES = 64,
BLAKE2S_OUTBYTES = 32,
BLAKE2S_KEYBYTES = 32
};
struct blake2s_state {
u32 h[8];
u32 t[2];
u32 f[2];
u8 buf[BLAKE2S_BLOCKBYTES];
size_t buflen;
u8 last_node;
};
void blake2s_init(struct blake2s_state *state, const size_t outlen);
void blake2s_init_key(struct blake2s_state *state, const size_t outlen,
const void *key, const size_t keylen);
void blake2s_update(struct blake2s_state *state, const u8 *in, size_t inlen);
void blake2s_final(struct blake2s_state *state, u8 *out, const size_t outlen);
static inline void blake2s(u8 *out, const u8 *in, const u8 *key,
const size_t outlen, const size_t inlen,
const size_t keylen)
{
struct blake2s_state state;
#ifdef DEBUG
BUG_ON((!in && inlen > 0) || !out || !outlen ||
outlen > BLAKE2S_OUTBYTES || keylen > BLAKE2S_KEYBYTES ||
(!key && keylen));
#endif
if (keylen)
blake2s_init_key(&state, outlen, key, keylen);
else
blake2s_init(&state, outlen);
blake2s_update(&state, in, inlen);
blake2s_final(&state, out, outlen);
}
void blake2s_hmac(u8 *out, const u8 *in, const u8 *key, const size_t outlen,
const size_t inlen, const size_t keylen);
#endif /* _ZINC_BLAKE2S_H */
|
