[mirror_ubuntu-bionic-kernel.git] / include / crypto / chacha20.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Common values for the ChaCha20 algorithm
 */

#ifndef _CRYPTO_CHACHA20_H
#define _CRYPTO_CHACHA20_H

#include <crypto/skcipher.h>
#include <linux/types.h>
#include <linux/crypto.h>

#define CHACHA20_IV_SIZE	16
#define CHACHA20_KEY_SIZE	32
#define CHACHA20_BLOCK_SIZE	64

struct chacha20_ctx {
	u32 key[8];
};

void chacha20_block(u32 *state, void *stream);
void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
			   unsigned int keysize);
int crypto_chacha20_crypt(struct skcipher_request *req);

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
31d7247d MW	2	/*
	3	* Common values for the ChaCha20 algorithm
	4	*/
	5
	6	#ifndef _CRYPTO_CHACHA20_H
	7	#define _CRYPTO_CHACHA20_H
	8
9ae433bc	9	#include <crypto/skcipher.h>
31d7247d MW	10	#include <linux/types.h>
	11	#include <linux/crypto.h>
	12
	13	#define CHACHA20_IV_SIZE 16
	14	#define CHACHA20_KEY_SIZE 32
	15	#define CHACHA20_BLOCK_SIZE 64
	16
	17	struct chacha20_ctx {
	18	u32 key[8];
	19	};
	20
e192be9d	21	void chacha20_block(u32 state, void stream);
31d7247d	22	void crypto_chacha20_init(u32 state, struct chacha20_ctx ctx, u8 *iv);
9ae433bc	23	int crypto_chacha20_setkey(struct crypto_skcipher tfm, const u8 key,
31d7247d	24	unsigned int keysize);
9ae433bc	25	int crypto_chacha20_crypt(struct skcipher_request *req);
31d7247d MW	26
31d7247d MW	27	#endif