41 строка
920 B
C
41 строка
920 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Common values for the Poly1305 algorithm
|
|
*/
|
|
|
|
#ifndef _CRYPTO_POLY1305_H
|
|
#define _CRYPTO_POLY1305_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/crypto.h>
|
|
|
|
#define POLY1305_BLOCK_SIZE 16
|
|
#define POLY1305_KEY_SIZE 32
|
|
#define POLY1305_DIGEST_SIZE 16
|
|
|
|
struct poly1305_desc_ctx {
|
|
/* key */
|
|
u32 r[5];
|
|
/* finalize key */
|
|
u32 s[4];
|
|
/* accumulator */
|
|
u32 h[5];
|
|
/* partial buffer */
|
|
u8 buf[POLY1305_BLOCK_SIZE];
|
|
/* bytes used in partial buffer */
|
|
unsigned int buflen;
|
|
/* r key has been set */
|
|
bool rset;
|
|
/* s key has been set */
|
|
bool sset;
|
|
};
|
|
|
|
int crypto_poly1305_init(struct shash_desc *desc);
|
|
unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
|
|
const u8 *src, unsigned int srclen);
|
|
int crypto_poly1305_update(struct shash_desc *desc,
|
|
const u8 *src, unsigned int srclen);
|
|
int crypto_poly1305_final(struct shash_desc *desc, u8 *dst);
|
|
|
|
#endif
|