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);