[linux-2.6-block.git] / include / crypto / chacha20.h

/*
 * Common values for the ChaCha20 algorithm
 */

#ifndef _CRYPTO_CHACHA20_H
#define _CRYPTO_CHACHA20_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 crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
int crypto_chacha20_setkey(struct crypto_tfm *tfm, const u8 *key,
			   unsigned int keysize);
int crypto_chacha20_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
			  struct scatterlist *src, unsigned int nbytes);

#endif
Commit	Line	Data
31d7247d MW	1	/*
	2	* Common values for the ChaCha20 algorithm
	3	*/
	4
	5	#ifndef _CRYPTO_CHACHA20_H
	6	#define _CRYPTO_CHACHA20_H
	7
	8	#include <linux/types.h>
	9	#include <linux/crypto.h>
	10
	11	#define CHACHA20_IV_SIZE 16
	12	#define CHACHA20_KEY_SIZE 32
	13	#define CHACHA20_BLOCK_SIZE 64
	14
	15	struct chacha20_ctx {
	16	u32 key[8];
	17	};
	18
	19	void crypto_chacha20_init(u32 state, struct chacha20_ctx ctx, u8 *iv);
	20	int crypto_chacha20_setkey(struct crypto_tfm tfm, const u8 key,
	21	unsigned int keysize);
	22	int crypto_chacha20_crypt(struct blkcipher_desc desc, struct scatterlist dst,
	23	struct scatterlist *src, unsigned int nbytes);
	24
	25	#endif