1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Common values for the ChaCha20 algorithm
6 #ifndef _CRYPTO_CHACHA20_H
7 #define _CRYPTO_CHACHA20_H
9 #include <crypto/skcipher.h>
10 #include <linux/types.h>
11 #include <linux/crypto.h>
13 #define CHACHA20_IV_SIZE 16
14 #define CHACHA20_KEY_SIZE 32
15 #define CHACHA20_BLOCK_SIZE 64
21 void chacha20_block(u32
*state
, u8
*stream
);
22 void crypto_chacha20_init(u32
*state
, struct chacha20_ctx
*ctx
, u8
*iv
);
23 int crypto_chacha20_setkey(struct crypto_skcipher
*tfm
, const u8
*key
,
24 unsigned int keysize
);
25 int crypto_chacha20_crypt(struct skcipher_request
*req
);