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ed20078b AB |
1 | /* SPDX-License-Identifier: GPL-2.0 OR MIT */ |
2 | /* | |
3 | * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. | |
4 | */ | |
5 | ||
6 | #ifndef __CHACHA20POLY1305_H | |
7 | #define __CHACHA20POLY1305_H | |
8 | ||
9 | #include <linux/types.h> | |
d95312a3 | 10 | #include <linux/scatterlist.h> |
ed20078b AB |
11 | |
12 | enum chacha20poly1305_lengths { | |
13 | XCHACHA20POLY1305_NONCE_SIZE = 24, | |
14 | CHACHA20POLY1305_KEY_SIZE = 32, | |
15 | CHACHA20POLY1305_AUTHTAG_SIZE = 16 | |
16 | }; | |
17 | ||
18 | void chacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len, | |
19 | const u8 *ad, const size_t ad_len, | |
20 | const u64 nonce, | |
21 | const u8 key[CHACHA20POLY1305_KEY_SIZE]); | |
22 | ||
23 | bool __must_check | |
24 | chacha20poly1305_decrypt(u8 *dst, const u8 *src, const size_t src_len, | |
25 | const u8 *ad, const size_t ad_len, const u64 nonce, | |
26 | const u8 key[CHACHA20POLY1305_KEY_SIZE]); | |
27 | ||
28 | void xchacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len, | |
29 | const u8 *ad, const size_t ad_len, | |
30 | const u8 nonce[XCHACHA20POLY1305_NONCE_SIZE], | |
31 | const u8 key[CHACHA20POLY1305_KEY_SIZE]); | |
32 | ||
33 | bool __must_check xchacha20poly1305_decrypt( | |
34 | u8 *dst, const u8 *src, const size_t src_len, const u8 *ad, | |
35 | const size_t ad_len, const u8 nonce[XCHACHA20POLY1305_NONCE_SIZE], | |
36 | const u8 key[CHACHA20POLY1305_KEY_SIZE]); | |
37 | ||
d95312a3 AB |
38 | bool chacha20poly1305_encrypt_sg_inplace(struct scatterlist *src, size_t src_len, |
39 | const u8 *ad, const size_t ad_len, | |
40 | const u64 nonce, | |
41 | const u8 key[CHACHA20POLY1305_KEY_SIZE]); | |
42 | ||
43 | bool chacha20poly1305_decrypt_sg_inplace(struct scatterlist *src, size_t src_len, | |
44 | const u8 *ad, const size_t ad_len, | |
45 | const u64 nonce, | |
46 | const u8 key[CHACHA20POLY1305_KEY_SIZE]); | |
47 | ||
06cc2afb HX |
48 | bool chacha20poly1305_selftest(void); |
49 | ||
ed20078b | 50 | #endif /* __CHACHA20POLY1305_H */ |